| 10th week of 2009 patent applcation highlights part 26 |
| Patent application number | Title | Published |
|---|
| 20090058489 | Spread spectrum clock generator - A spread spectrum clock generator for sequentially modulating a source clock of a fixed frequency with a predetermined frequency range, including: a plurality of first loading units configured to delay clock edges of the source clock by a delay time corresponding to the number of unit delay steps determined by delay step control signals, wherein each of the first loading units comprises a plurality of second loading units each of which is configured to vary a delay value of each unit delay step by changing an inner interconnection configuration thereof in response to unit delay step control signals. | 2009-03-05 |
| 20090058490 | PULSE GENERATING CIRCUIT, ELECTRONIC DEVICE USING THIS PULSE GENERATING CIRCUIT, CELLULAR PHONE SET, PERSONAL COMPUTER, AND INFORMATION TRANSMITTING METHOD USING THIS CIRCUIT - A pulse generating circuit includes a plurality of delay elements cascaded so as to constitute a predetermined loop, wherein when a predetermined input pulse is supplied to a leading end of the series connection, an effective frequency multiplication is applied to signals which appear at a plurality of portions out of the node portions among the plurality of delay elements and the terminal end portion of the series connection by a logical circuit to obtain an output pulse having a higher frequency than the input pulse. | 2009-03-05 |
| 20090058491 | HIGH-TO-LOW LEVEL SHIFTER - A high-to-low level shifter is disclosed, comprising a high voltage unit and a low voltage unit. The high voltage unit receives an input signal from an input node. The high voltage unit outputs a first output signal to an output node when the high voltage unit receives a low-voltage-level input signal. The low voltage unit outputs a second output signal to the output node when the high voltage unit receives a high-voltage-level input signal. | 2009-03-05 |
| 20090058492 | ELECTRONIC ISOLATOR - The present invention is an electronic isolator that provides low input to output insertion loss, high output to input insertion loss, and substantial asymmetric isolation between a source circuit and a load circuit. The invention actively reduces noise and reflected power appearing on the isolator output. In numerous embodiments, the invention operates in circuit applications from dc through millimeter wave. Multistage electronic isolator embodiments provide increased isolation and greater noise reduction. In other embodiments, the electronic isolator also removes noise appearing on its input. In another embodiment the invention is configured for high power applications. This embodiment includes circuitry for redirecting power away from the load into resistors or other dissipative elements. In another embodiment, the electronic isolator is configured to remove signal distortion produced by one or more power amplifiers in the system. | 2009-03-05 |
| 20090058493 | Signal Level Converter - An electronic device with a supply voltage level converter converts a signal from a first low supply voltage level to a second high supply voltage level includes; a first pair of cross coupled MOS transistors compliant with the second supply voltage level, each having a source coupled to the second supply voltage level and providing complementary output signals at respective drains; driven by a second pair of common gate MOS transistors compliant with the second supply voltage; driven by a third pair of common gate MOS transistors compliant with the first voltage level; and driven by first and second inverters coupled in a chain and supplied by the first supply voltage level, each having an output connected to the source of a transistor in a third pair. | 2009-03-05 |
| 20090058494 | HEAD SUBSTRATE, PRINTHEAD, AND HEAD CARTRIDGE - The following arrangement is added to a head substrate including a plurality of electrothermal transducers, a plurality of switching elements which drive the plurality of electrothermal transducers, and a logic circuit which drives the plurality of switching elements. That is, the head substrate includes a plurality of level converters which correspond to the respective switching elements, and apply a voltage obtained by boosting a logic voltage. Further, the head substrate includes a bias circuit which applies a bias voltage lower than the boosted voltage to the plurality of level converters. | 2009-03-05 |
| 20090058495 | CIRCUIT ARRANGEMENT FOR SIGNAL MIXING - A circuit arrangement for signal mixing. One embodiment provides a circuit arrangement for mixing an input signal with at least one carrier signal. The circuit arrangement includes a current source and a current sink. The current source and the current sink have a mixer core coupled between them which provides cross-coupling between mixer input connections and mixer output connections. | 2009-03-05 |
| 20090058496 | CIRCUIT ARRANGEMENT AND CORRESPONDING METHOD FOR CONTROLLING AND/OR PREVENTING INJECTION CURRENT - In order to further develop a circuit arrangement ( | 2009-03-05 |
| 20090058497 | METHOD TO REDUCE THE PIN COUNT ON AN INTEGRATED CIRCUIT AND ASSOCIATED APPARATUS - A method and associated apparatus for enabling a plurality of functions of an integrated circuit to be controlled on a single pin of the circuit. The method includes the steps of providing each of the functions with a designated periodically recurring sampling instance during which time the status of a signal on the single pin will be considered to relate to the function designated to that sampling instance, and controlling each of the functions according to the status of the signal on the single pin during each of the plurality of functions' corresponding designated sampling instance. | 2009-03-05 |
| 20090058498 | HALF BRIDGE CIRCUIT AND METHOD OF OPERATING A HALF BRIDGE CIRCUIT - A half bridge circuit has a first switch having at least one control gate and a second switch having at least two control gates. A first driver has an output connected to a control gate of the first switch. A second driver has an output connected to a first control gate of the second switch. The output of the first driver is connected to a second control gate of the second switch by a circuit arrangement such that when the first driver is operated to apply a high, positive voltage to the control gate of the first switch, a positive voltage is applied to the second control gate of the second switch, and such that when the first driver is operated to apply a low, zero or small voltage to the control gate of the first switch, a negative voltage is applied to said second control gate of the second switch. | 2009-03-05 |
| 20090058499 | GATE DRIVING CIRCUIT AND METHOD FOR DRIVING SEMICONDUCTOR DEVICE - A gate driving circuit and method can improve the tradeoff relation between the noise and the loss caused in the turn-OFF switching of semiconductor device. The gate driving circuit includes first and second series circuits. The first series circuit includes first and second MOSFETs connected in series. The gate terminal of the semiconductor device is connected to a negative potential side of the first MOSFET and a positive potential side of the second MOSFET. The emitter of the semiconductor device is connected to the negative potential side of the second MOSFET or a DC power source. The second series circuit includes a capacitor and a third MOSFET connected in series. The second series circuit is connected in parallel with the second MOSFET. The semiconductor device is turned OFF by turning ON the second and third MOSFETs and turning OFF the first MOSFET. | 2009-03-05 |
| 20090058500 | BIDIRECTIONAL SWITCH MODULE - A first semiconductor element having a junction electrode to be connected to a first node of a bidirectional switch circuit is mounted on a first metal base plate to be a heat dissipation plate, and a second semiconductor element having a junction electrode to be connected to a second node of the bidirectional switch circuit is mounted on a second metal base plate to be a heat dissipation plate. The junction electrode of the first semiconductor element has the same potential as that of the first metal base plate, and the junction electrode of the second semiconductor element has the same potential as that of the second metal base plate. Also, the respective metal base plates and non-junction electrodes of the respective semiconductor elements are connected by metal thin wires, respectively, thereby configuring the bidirectional switch circuit. | 2009-03-05 |
| 20090058501 | SEMICONDUCTOR DEVICE - A semiconductor device includes an input terminal, a first aging device whose source is connected to the input terminal to turn on at τ | 2009-03-05 |
| 20090058502 | OPTICAL SENSOR HAVING CURRENT AMPLIFIER, AND DISPLAY APPARATUS PROVIDED WITH THE OPTICAL SENSOR - An optical sensor includes a photoelectric converter to receive external light and to output a photocurrent signal according to the illuminance of the external light. A current-to-voltage converter converts the photocurrent signal output from the photoelectric converter to a voltage signal. A voltage amplifier amplifies the voltage signal. A current amplifier outputs a current signal corresponding to the voltage signal amplified by the voltage amplifier. Each of the photoelectric converter, current-to-voltage converter, voltage amplifier and current amplifier includes at least one thin-film transistor. | 2009-03-05 |
| 20090058503 | Method to Bridge a Distance Between eFuse Banks That Contain Encoded Data - An eFuse system that includes a mechanism that bridges banks of eFuses and allows the banks of eFuses to be placed any distance from each other. The bridging of the eFuse banks is transparent to compression and encode programming algorithm and hardware decode mechanisms. Thus, by using the mechanism for bridging gaps between eFuse banks, an eFuse subsystem with several banks distributed on an integrated circuit chip appears to be a single large eFuse bank to the encode/decode mechanisms of the integrated circuit. Additionally, with this mechanism, eFuse banks can be easily added or deleted. | 2009-03-05 |
| 20090058504 | SELF-POWERED VOLTAGE ISLANDS ON AN INTEGRATED CIRCUIT - The present disclosure is directed to self-powered voltage islands on an integrated circuit. A structure in accordance with an embodiment includes: an integrated circuit including a power source; a voltage island; and an on-board power source provided on the voltage island for powering the voltage island independently of the power source of the integrated circuit. | 2009-03-05 |
| 20090058505 | VOLTAGE CONVERTING CIRCUIT AND BATTERY DEVICE - A voltage converting circuit and a battery device, aimed at the problem that the breakdown voltage required for the driving input of the selected switch element is increased as the potential of the selected power storage device is increased when a power storage device is selected from a plurality of power storage devices that are connected in series. A certain drive voltage for turning on p-type MOS transistors Q | 2009-03-05 |
| 20090058506 | Bottom Plate Regulation of Charge Pumps - Techniques of operating a charge pump are described. The charge pump is connectable to receive a clock signal and a regulating voltage and provide an output voltage. The charge pump can have one or multiple stages, each of the stages will include a capacitor. During the charging phase, the regulating voltage is used to regulate the potential of the capacitor's bottom plate. During the boosting phase, the capacitor's top plate is connected to supply the output for the stage and the bottom plate is connected to receive the stage's input. Each stage will also have a set of switching elements, allowing the capacitor to be alternately connected in the charging and boosting phases. For the first stage, the input is derived from the clock signal, and for any subsequent stages, the input will be the output of the preceding stage. The last stage provides the output voltage of the pump. | 2009-03-05 |
| 20090058507 | Bottom Plate Regulated Charge Pump - Techniques of operating a charge pump are described. The charge pump is connectable to receive a clock signal and a regulating voltage and provide an output voltage. The charge pump can have one or multiple stages, each of the stages will include a capacitor. During the charging phase, the regulating voltage is used to regulate the potential of the capacitor's bottom plate. During the boosting phase, the capacitor's top plate is connected to supply the output for the stage and the bottom plate is connected to receive the stage's input. Each stage will also have a set of switching elements, allowing the capacitor to be alternately connected in the charging and boosting phases. For the first stage, the input is derived from the clock signal, and for any subsequent stages, the input will be the output of the preceding stage. The last stage provides the output voltage of the pump. | 2009-03-05 |
| 20090058508 | Word line boost circuit and method - A word line boost circuit includes a first pump circuit, a first transistor, a voltage detection circuit and a second pump circuit. The first pump circuit provides a gate boosted signal according to an address transfer detection (ATD) signal. The first transistor has a control terminal for receiving the gate boosted signal and a second terminal coupled to a target word line. The voltage detection circuit is for detecting a voltage level of the gate boosted signal and accordingly outputting a detection signal. The second pump circuit is for outputting a boost signal to a first terminal of the first transistor according to a voltage level of the detection signal. The boost signal boosts the target word line via the turned-on first transistor. | 2009-03-05 |
| 20090058509 | Booster Circuit, Semiconductor Device, and Electronic Apparatus - A conventional circuit requires a booster circuit for generating a voltage higher than an external power supply voltage, thus low power consumption is difficult to be achieved. In addition, a display device incorporating the aforementioned conventional switching element for booster circuit has problems in that the current load is increased and the power supply becomes unstable with a higher output current. The invention provides a booster circuit including a first transistor, a second transistor, a first capacitor element, a second capacitor element, a diode, and an inverter, wherein one electrode of the first transistor is maintained at a predetermined potential, the output of the inverter is connected to the gate electrode of the first transistor and one electrode of the second transistor through the second capacitor element, the input of the inverter is connected to the other electrode of the first transistor through the first capacitor element and connected to the gate electrode of the second transistor, and the diode is connected between the other electrode of the first transistor and the other electrode of the second transistor so as to be forwardly biased. | 2009-03-05 |
| 20090058510 | SEMICONDUCTOR MEMORY DEVICE - A semiconductor memory device includes a voltage detector configured to detect a voltage level of an external power supply voltage, a first core voltage generation driver configured to operate when the external power supply voltage is in a high level region and a second core voltage generation driver configured to operate when the external power supply voltage is in a low level region. | 2009-03-05 |
| 20090058511 | Low Supply Voltage Bandgap System - A system and a method is disclosed for allowing bandgap circuitry to function on a low supply voltage integrated circuit, and for using the reference voltage (Vbg) generated by the bandgap circuitry to enable a reference voltage to control system voltage. An illustrative embodiment comprises a charge pump to raise a supply voltage to a system voltage, and an open loop controller, which provides a first signal to activate the charge pump, enabling a bandgap circuit, which outputs a bandgap voltage reference. Further, the system comprises a closed loop controller, which regulates the system voltage by comparing the system voltage to the bandgap reference voltage. Upon the system voltage falling below a target voltage, the closed loop controller provides a second signal to activate the charge pump. Additionally the system comprises a switch controller, which selects the closed loop controller upon sensing the bandgap circuit is active. | 2009-03-05 |
| 20090058512 | PROCESS INDEPENDENT CURVATURE COMPENSATION SCHEME FOR BANDGAP REFERENCE - In a voltage reference circuit, a bandgap reference circuit, for generating a bandgap reference voltage and a reference current, includes an operation amplifier, and a first transistor for providing the reference current. Another transistor mirrors the reference current to provide a first current. A compensation controller converts a node voltage from the bandgap reference circuit into a second current and performs current subtraction on the first current and the second current to provide a compensation feedback current to another node of the bandgap reference circuit. So that, second order temperature compensation is performed on the bandgap reference voltage. | 2009-03-05 |
| 20090058513 | CORE VOLTAGE GENERATION CIRCUIT - A core voltage generation circuit includes a comparator configured to perform a differential comparison of a reference voltage and a feedback core voltage. An amplifier is configured to amplify the external power supply voltage in response to an output signal of the comparator to generate the core voltage. A control switch is configured to form a current path of the comparator using different switch units according to a voltage level of an external power supply voltage input to the core voltage generation circuit. | 2009-03-05 |
| 20090058514 | Semiconductor Device of Power Compensation - According to an aspect of an embodiment, a semiconductor device includes: a reference line; a first line provided with a first voltage with respect to the reference line; a second line provided with a second voltage not less than the first voltage with respect to the reference line; a capacitor having a first capacitance arranged between the reference line and second line; a current limiting element arranged between the capacitor and the second line, for charging up the capacitor, the current limiting element limiting current flowing into the capacitor from the second line during charging up; a first switch connected between the first line and the capacitor; and a controller for controlling the first switch to discharge the capacitor. | 2009-03-05 |
| 20090058515 | SEMICONDUCTOR DEVICE, INFORMATION PROCESSING APPARATUS AND POWER SUPPLY VOLTAGE VARIATION SUPPRESSING METHOD - According to one embodiment, a semiconductor device includes an internal circuit which is driven by a power supply voltage and is set in one of a first state and a second state in which an amount of current consumed by the internal circuit is greater than in the first state, and a wait control module. The wait control module detects that a state of the internal circuit has transitioned from the first state to the second state, and executes a wait control process of outputting an operation start instruction signal to the internal circuit after passing of a predetermined wait time from the detection of the transition of the state of the internal circuit from the first start to the second state. | 2009-03-05 |
| 20090058516 | SENSOR APPARATUS HAVING SENSOR ELEMENT - A sensor apparatus is disclosed. A sense circuit is provided to convert inputted physical quantity to electrical signal. An amplifier amplifies an analog signal outputted from the sense circuit. An AID converter converts the output signal of the amplifier to digital data. A sensing interval setup unit sets a sensing interval for the sense circuit. A power supply unit supplies electric power to the sense circuit, the amplifier and the A/D converter. The amplifier and the A/D converter constitute an analog signal processing unit. A power supply control unit is provided to control the power supply unit. A storage unit stores the digital data outputted from the A/D converter every sensing interval of the sensing interval. A data value change judgment unit changes the setup of the sensing interval by the sensing interval setup unit. The data value change judgment unit also changes the control mode of the power supply control unit in response to judgment of value change between a plural number of digital data which are designated from the digital data being stored in the storage unit. | 2009-03-05 |
| 20090058517 | High Voltage Tolerant Input Buffer - An input buffer protection circuit is disclosed which comprises a NMOS transistor with a source, drain and gate coupled to an input terminal of the input buffer, a pad and a chip peripheral positive power supply voltage (VDDP), respectively, and a PMOS transistor with a source, drain and gate coupled to the pad, the input terminal of the input buffer and a first terminal of a biasing circuit, respectively, wherein the biasing circuit has a second terminal coupled to the pad and generates at the first terminal a voltage lower than the pad's input signal voltage (VPAD) to turn on the PMOS transistor when the VPAD is lower than or equal to the VDDP, or a voltage substantial equals to the VPAD to turn off the PMOS transistor when the VPAD is higher than the VDDP. | 2009-03-05 |
| 20090058518 | HIGH-PASS FILTER - A capacitor has one end receiving an input signal and the other end outputting an output signal. A resistor circuit, connected between a power source and the other end of the capacitor, functions as a resistor. The resistor circuit includes a PNP transistor having a base connected to the other end of the capacitor and an NPN transistor having a base connected to the other end of the capacitor. A differential amplifier supplies complementary current to the PNP transistor and the NPN transistor. The differential amplifier receives, as negative feedback, the output signal from the other end of the differential amplifier. | 2009-03-05 |
| 20090058519 | Variable Automatic Limit Control (ALC) Threshold for any Desired Compression Curve - A signal conditioning circuit dynamically adjusts a compression ratio, so as to compress a signal and avoid limiting to the extent possible, thereby avoiding distorting the signal by clipping. An input signal is applied to the input of a programmed gain amplifier (PGA) or other amplifier whose gain can be controlled by a gain control signal. The input or the output of the PGA is sampled by a level detector to produce a level signal that represents the level of the signal. A variable source produces a variable threshold signal. A comparator compares the level signal to the variable threshold signal to produce a difference signal. Control logic generates the gain control signal from the difference signal. When the level signal exceeds the threshold signal, the control logic alters the gain control signal to reduce the gain of the PGA, and when the level signal is less than the threshold signal, the control logic alters the gain control signal to increase the gain of the PGA. The threshold signal varies as a function of the gain control signal. | 2009-03-05 |
| 20090058520 | AMPLIFIER CIRCUIT - An amplifier circuit that is less likely to cause an error in a gain and a DC offset voltage and is suitable for reducing a size and power consumption is offered. A first resistor and a second resistor are connected in series between an input terminal and an output terminal. A third resistor and a fourth resistor are connected in series between a VREFL terminal and a VREFH terminal. A ratio of a resistance of the first resistor to a resistance of the second resistor is equal to a ratio of a resistance of the third resistor to a resistance of the fourth resistor. A voltage at a connecting node between the first resistor and the second resistor is applied to a first differential input terminal (−) of an operational amplifier, while either a voltage at a connecting node between the third resistor and the fourth resistor or VREFH is selectively applied to a second differential input terminal (+) of the operational amplifier. An output of the operational amplifier is outputted through the output terminal as well as being applied to the first differential input terminal through the second resistor that serves as a feedback resistor. | 2009-03-05 |
| 20090058521 | SYSTEM AND METHOD OF DIGITAL LINEARIZATION IN ELECTRONIC DEVICES - A method, apparatus, and computer program product to reduce nonlinear signal distortion of a primary signal within an electronic device is provided. An example method includes the steps of: applying at least one stimulus signal to excite distortion; analyzing nonlinear effects in the distorted stimulus signal; modeling distortion as a function of the stimulus signal; and creating a correction signal using the distortion model and the primary signal. | 2009-03-05 |
| 20090058522 | DIFFERENTIAL AMPLIFIER - A differential amplifier is constituted of first emitter-follower transistors, second emitter-follower transistors, and amplification transistors whose bases are alternately connected to the emitters of the second emitter-follower transistors and whose collectors are connected to the emitters of the first emitter-follower transistors, as well as emitter resistors and constant current sources, whereby it is possible to reduce distortions of output signals in response to large-amplitude input signals, thus ensuring high-speed operation. It is possible to further incorporate base-grounded transistors and diodes, by which substantially the same collector-emitter voltage is applied to the emitter-follower transistors and amplification transistors, thus achieving the same power consumption and the same temperature variations with respect to these transistors. This reduces the nonlinear amplification error due to temperature differences of transistors, thus achieving flat gain characteristics in broad ranges of frequencies. | 2009-03-05 |
| 20090058523 | Amplifying circuit - An amplifying circuit comprising an output stage circuit composed of a first and a second output transistor and operating as a class AB push-pull circuit reduces electricity consumed by an idle current. A pre-stage circuit outputs a first and a second control signal, and controls a channel current of the first and the second output transistor. In a period in which one control signal causes the corresponding output transistor to operate in class AB mode, the other control signal places the corresponding output transistor in a cutoff state. | 2009-03-05 |
| 20090058524 | RECEIVED SIGNAL STRENGTH INDICATOR SELF-CALIBRATING GAIN OF LIMITER - A received signal strength indicator according to an aspect of the invention may include a gain calibration section including a calibration limiter, a calibration load unit and a comparison and adjustment unit. The calibration load unit is connected to output terminals of the calibration limiter, and generating an output differential voltage whose gain is a unit gain when a predetermined input differential voltage is input to the calibration limiter, and a comparison and adjustment unit comparing the input differential voltage with the output differential voltage, and adjusting an output of a variable current source included in the calibration limiter so that the input differential voltage becomes identical to the output differential voltage. | 2009-03-05 |
| 20090058525 | Common-mode bandwidth reduction circuit and method for differential applications - An amplifier driver circuit ( | 2009-03-05 |
| 20090058526 | COMMON MODE FEEDBACK AMPLIFIER WITH SWITCHED DIFFERENTIAL CAPACITOR - A structure and related design structure for providing a common mode feedback to a differential amplifier are disclosed. A common mode feedback amplifier is connected to a differential amplifier to provide common mode feedback voltage thereto. An input of the common mode feedback amplifier is shorted to an output terminal of the differential amplifier during a sampling phase, and is coupled to the differential output voltage through two matched capacitors during a holding phase. | 2009-03-05 |
| 20090058527 | Common Mode Stabilization In A Fully Differential Amplifier - A fully differential amplifier circuit provided according to an aspect of the present invention contains a stabilization block to measure the common mode component at the output of an input stage, and to inject a current proportionate to the common mode component into each of a pair of paths forming the output of the input stage to stabilize a feedback loop formed by the input stage, an output stage and a common mode feedback block. In an embodiment, the stabilization block contains a buffer to receive the measured common mode component and to provide a buffered output. The injected current is generated based on the buffered output. Due to the presence of the buffer, the differential loop may not be affected by injection of the additional current, thereby avoiding any distortions in the output signal. | 2009-03-05 |
| 20090058528 | Pre-Amplifier for a Receiver and a Method therefor - A pre-amplifier for a receiver is provided. The pre-amplifier includes a first and a second input operational amplifiers, an output module, a first and a second feedback circuits. The first and the second input operational amplifiers amplify an input differential voltage pair to output a first and a second differential voltage pairs. The output module includes a first and a second output operational amplifiers and an inverter. The first and the second output operational amplifiers amplify the first and the second differential voltage pairs to output a first and a second output amplified voltages. The inverter pulls an output voltage high or low based on the first and the second output amplified voltages. The first and second feedback circuits are respectively for pulling up the first differential voltage pair or pulling down the second differential voltage pair, such that the first and the second output operational amplifiers are not disabled. | 2009-03-05 |
| 20090058529 | Resistively Loaded Single Stage Differential Amplifier Having Zero Volt Common Mode Input - A resistively folded single stage differential amplifier capable of accommodating a low input common mode without impacting the performance of a bias current source, while also providing a high input impedance to allow for the use of the linear termination resistors. The differential amplifier provides an amplified output signal with a common mode referenced to an upper bound of an input power supply. The differential amplifier includes an input sub-stage and a transistor sub-stage resistively folding the input sub-stage. | 2009-03-05 |
| 20090058530 | HIGH-VOLTAGE TRANSCONDUCTANCE CIRCUIT - The invention is a high-power transconductance circuit (HVTC) comprising three direct-coupled stages which can be substituted for a final-stage power-amplifying vacuum tube in an audio amplifier. The HVTC consists of an input stage, a driver stage, an output stage, and a power conditioner. The input to the HVTC is a composite signal consisting of an AC component and a DC component. The input stage conditions the input composite signal for input to the driver stage. The driver stage transforms the input composite signal into the driving signal for the output stage. The output stage utilizes one or more power transistors to drive a load. The power conditioner supplies regulated power to the HVTC. The input composite signal is direct-coupled through the input stage and the driver stage to the output stage. | 2009-03-05 |
| 20090058531 | VARIABLE GAIN AMPLIFIER - Techniques and systems for receiving a signal at a first component with an adjustable gain, and adjusting the gain of the first component to a first gain value using a first gain step. Amplifying the signal with the first gain value, generating a first amplified signal, and receiving the first amplified signal at a second component with an adjustable gain. Adjusting a gain of the second component to a second gain value using a second gain step. The net gain step is smaller than one of the first or second gain step. Amplifying the first amplified signal with the second gain value to generate a second amplified signal, and receiving the second amplified signal at a filtering component. A transient response introduced by the filtering component on the second amplified signal is smaller than the transient response that would be introduced by the filtering component on the first amplified signal. | 2009-03-05 |
| 20090058532 | NITRIDE SEMICONDUCTOR DEVICE, DOHERTY AMPLIFIER AND DRAIN VOLTAGE CONTROLLED AMPLIFIER - A nitride semiconductor device includes a substrate, a stacked semiconductor structure formed over the substrate and including a electron channel layer of an undoped nitride semiconductor and an electron supplying layer of an n-type nitride semiconductor formed epitaxially over the electron channel layer, the n-type nitride semiconductor having an electron affinity smaller than an electron affinity of said undoped nitride semiconductor and a two-dimensional electron gas being formed in the electron channel layer along an interface to the electron supply layer, a gate electrode formed over the stacked semiconductor structure in correspondence to a channel region, and source and drain electrodes formed over the stacked semiconductor structure in ohmic contact therewith respectively at a first side and a second side of the gate electrode, the stacked semiconductor structure including, between the substrate and the electron channel layer, an n-type conductive layer and a barrier layer containing Al formed consecutively and epitaxially. | 2009-03-05 |
| 20090058533 | Voltage generating apparatus and methods - The invention provides a voltage generating apparatus for powering at least one amplifier. The voltage generating apparatus comprises a voltage source, a switched capacitor voltage converter and a voltage detector. The voltage source supplies a first voltage to a positive voltage input terminal of the at least one amplifier. The first voltage is a positive DC voltage. The switched capacitor voltage converter is coupled to the voltage source for outputting an output voltage to a negative voltage input terminal of the at least one amplifier according to the first voltage and a predetermined voltage. The output voltage is a negative DC voltage. The voltage detector is coupled to the switched capacitor voltage converter for determining a switching frequency corresponding to the predetermined voltage according to the output voltage. The switched capacitor voltage converter increases the output voltage when the switching frequency is decreased and decreases the output voltage when the switching frequency is increased. | 2009-03-05 |
| 20090058534 | Non-inverting amplifier circuit and optical switch driver circuit - A non-inverting amplifier circuit is disclosed that includes an operational amplifier and a preemphasis circuit connected between the operational amplifier and a signal source. The preemphasis circuit is configured to compensate for the internal delay of a load connected to the output of the operational amplifier by emphasizing a high-frequency component of a signal fed from the signal source. | 2009-03-05 |
| 20090058535 | CONSTANT CALIBRATION - An oscillating signal of relatively precise frequency can be generated by tuning an oscillator using an external stable oscillating source as a reference. Calibration logic can be included to compare a signal from the local oscillator to the reference signal and vary the local signal to a desired frequency. In one embodiment, the frequency of the local signal can be constantly or periodically compared with a threshold value and if the frequency exceeds the threshold value, the local oscillator can be modified to produce a signal having a frequency that is closer to a desired frequency. | 2009-03-05 |
| 20090058536 | APPARATUS AND METHOD FOR PHASE LOCK LOOP GAIN CONTROL USING UNIT CURRENT SOURCES - A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform band-select tuning of the VCO. The gain compensator compensates for the variable VCO gain by generating a charge pump reference current that is based on the same capacitor control signal that controls the fixed capacitors in the LC circuit. The gain compensator generates the charge pump reference current by replicating a reference scale current using unit current sources. The number of times the reference scale current is replicated is based on the fixed capacitance that is switched-in to the LC circuit and therefore the frequency band of the PLL. The reference scale current is generated based on a PLL control that specifics certain PLL characteristics such as reference frequency, loop bandwidth, and loop damping. Therefore, the reference pump current can be efficiently optimized for-changing PLL operating conditions, in addition to compensating for variable VCO gain. | 2009-03-05 |
| 20090058537 | PLL lock time reduction - In general, in one aspect, the disclosure describes a method including determining a change in a lock state of a phase lock loop (PLL). Current provided to a charge pump (CP) is adjusted based on the change in the lock state of the PLL. The adjusting of the current is synchronized to occur during an idle state of the CP. | 2009-03-05 |
| 20090058538 | Radiation Hard Oscillator and Differential Circuit Design - A radiation hard design for oscillator circuits and circuits having differential outputs is described. The design includes connecting or otherwise coupling outputs of these circuits to a passive polyphase filter. The passive polyphase filter provides four quadrature outputs that are free of glitches that may have occurred at the filter input. | 2009-03-05 |
| 20090058539 | PERIOD SIGNAL GENERATOR OF SEMICONDUCTOR INTEGREATED CIRCUIT - A period signal generator comprises a first period signal generating unit for generating a first period signal of which period changes according to a temperature, a second period signal generating unit for generating a second period signal which has a constant period regardless of a temperature, and a period signal output control unit for comparing the first period signal with the second period signal and selecting and outputting the first period signal in case that the period of the first period signal is shorter than that of the second period signal. | 2009-03-05 |
| 20090058540 | Microelectronic Die Having CMOS Ring Oscillator Thereon And Method of Using Same - A microelectronic die including a CMOS ring oscillator thereon, and a method of using the same. The microelectronic die includes: a die substrate; and a plurality of CMOS ring oscillators on the die substrate, the ring oscillators being disposed at regions of the die substrate that are adapted to exhibit differing strain responses to package-induced stress with respect to one another. | 2009-03-05 |
| 20090058541 | High-frequency ring coupled Quad - The present invention discloses a high-frequency ring coupled Quad comprising at least two transistors, which are cascaded to form a ring and bonded to resonators to form an oscillation source. The open loop feedback gain of the ring coupler of the present invention is higher than that of a conventional cross-coupled pair oscillator because the present invention adopts at least two cascaded transistors. The present invention can solve the problems of low transistor gain and high substrate loss occurring at a high frequency. The present invention has a fully symmetric circuit topology and is free of additional interconnections lines, which can obviously reduce the stray effect of interconnection lines. | 2009-03-05 |
| 20090058542 | Variable frequency oscillating circuit - Provided is a variable frequency oscillating circuit which has a small circuit size and is unlikely to cause a semiconductor device to malfunction. One oscillating circuit ( | 2009-03-05 |
| 20090058543 | Temperature detecting semiconductor device - There is provided a technique which is capable of detecting a temperature of a semiconductor device with high precision. A temperature detection circuit detecting a temperature of a semiconductor device includes a first short-cycle oscillator generating a first clock signal having positive temperature characteristics with respect to a frequency, a second short-cycle oscillator generating a second clock signal having negative temperature characteristics with respect to the frequency, and a temperature signal generation unit generating a temperature signal which is varied according to the temperature of the semiconductor device based on the first and second clock signals. | 2009-03-05 |
| 20090058544 | SURFACE-MOUNT CRYSTAL OSCILLATOR - A surface-mount crystal oscillator includes: a crystal blank; an IC chip in which at least an oscillation circuit using the crystal blank is integrated, a plurality of IC terminals are provided on one principal surface, and a plurality of mounting terminals for surface mounting are provided on the other principal surface; and a housing member joined to the one principal surface of the IC chip and formed into a recessed shape. The crystal blank is fixed to crystal connection terminals out of the IC terminals, and is hermetically encapsulated in a space formed by the IC chip and the housing member. At least a power supply terminal, an output terminal and a ground terminal out of the IC terminals are electrically connected to the mounting terminals by a through-electrode provided to penetrate through the IC chip. | 2009-03-05 |
| 20090058545 | ATOMIC ION CLOCK WITH TWO ION TRAPS, AND METHOD TO TRANSFER IONS - An atomic ion clock with a first ion trap and a second ion trap, where the second ion trap is of higher order than the first ion trap. In one embodiment, ions may be shuttled back and forth from one ion trap to the other by application of voltage ramps to the electrodes in the ion traps, where microwave interrogation takes place when the ions are in the second ion trap, and fluorescence is induced and measured when the ions are in the first ion trap. In one embodiment, the RF voltages applied to the second ion trap to contain the ions are at a higher frequency than that applied to the first ion trap. Other embodiments are described and claimed. | 2009-03-05 |
| 20090058546 | OSCILLATOR CIRCUIT AND ELECTRONIC DEVICE HAVING OSCILLATOR CIRCUIT - An oscillator circuit includes a first terminal, a second terminal, a resonator that is connected to the first terminal and the second terminal, a first capacitor that is connected to the first terminal and a ground line supplying the ground electric potential, a second capacitor that is connected to the second terminal and the ground line, m inverters, where m is an odd number equal to or larger than three, which are connected in series between the first terminal and the second terminal, and a third capacitor that is connected to an input terminal of the n-th (where n is an integer satisfying 1≦n| 2009-03-05 | |
| 20090058547 | METHOD OF FABRICATING HERMETIC TERMINAL AND HERMETIC TERMINAL, METHOD OF FABRICATING PIEZOELECTRIC OSCILLATOR AND PIEZOELECTRIC OSCILLATOR, OSCILLATOR, ELECTRONIC APPLIANCE, AND RADIO CLOCK - A method of fabricating a hermetic terminal having an annular ring, a lead arranged to penetrate through the ring in which one end side thereof is an inner lead portion electrically connected to a piezoelectric vibrating piece and the other end side thereof is an outer lead portion electrically connected to outside as the ring is between them, and a filler fixing the lead to the ring, wherein the hermetic terminal seals the piezoelectric vibrating piece inside a case, the method includes the steps of: applying plating to a hermetic terminal intermediate having the lead fixed in the ring with the filler to plate the ring and the lead; setting the hermetic terminal intermediate after subjected to plating on a holding member; and flattening an end part of an inner lead portion in the lead to form a stair portion in the hermetic terminal intermediate set on the holding member. | 2009-03-05 |
| 20090058548 | Method and signal control system providing fast transitions in an oscillating signal - In one embodiment, a signal control system has a signal output and includes: 1) a phase-locked loop (PLL) having a voltage-controlled oscillator (VCO), a phase error detector, an oscillating output coupled to the signal output of the signal control system, and a programmable frequency divider coupled in a feedback path between the oscillating output and the phase error detector; 2) at least one automatic level controller (ALC), coupled to the oscillating output; and 3) a plurality of switchable integrators, including first and second switchable integrators that are respectively coupled between the phase error detector and the VCO, and in the at least one ALC. Each of the switchable integrators is switchable between a narrow bandwidth mode that provides for stable operation of the signal control system, and a wide bandwidth mode that enables fast signal transitions at the signal output. | 2009-03-05 |
| 20090058549 | Systems and Methods to Minimize Startup Transients in Class D Amplifiers - Systems and methods for minimizing startup transients in digital audio controllers that may result in audible artifacts in the output of an audio amplification system. One embodiment comprises a digital PWM amplifier that includes a mechanism for controlling the amount of dead time in the audio output signal. When the amplifier starts up, the PWM signals provided to the output stage are simultaneously deasserted (i.e., there is dead time) for most of each switch period. The amount of dead time is gradually reduced over a series of switch periods until a nominal operating amount of dead time in each switch period is reached. Thus, the PWM signals are slowly ramped up from having a very large percentage of dead time (e.g., nearly 100%) to having a very small percentage of dead time (e.g., 1-2% to prevent shoot-through.) | 2009-03-05 |
| 20090058550 | Apparatus, method and computer program - An apparatus comprising including a matching circuit; a first variable reactance component, having a first range of reactance values, and connected to the matching circuit and connectable to an antenna element operable in a first frequency band and a second frequency band; a second variable reactance component, having a second range of reactance values, and connected to the matching circuit; a detector for detecting a parameter, indicative of the impedance of the apparatus, over at least a part of the first range and second range of reactance values; and a controller configured to determine, using information provided by the detector, optimum ratios of second reactance values to first reactance values, at a frequency in the first frequency band, and configured to select a first optimum ratio when the second frequency band is greater than the first frequency band and configured to select a second different optimum ratio when the second frequency band is less than the first frequency band. | 2009-03-05 |
| 20090058551 | NONRECIPROCAL CIRCUIT ELEMENT - A non-reciprocal circuit element capable of improving an isolation characteristic without increasing an insertion loss includes a permanent magnet, a ferrite arranged to receive a direct-current magnetic field from the permanent magnet, and first and second center electrodes disposed on the ferrite. One end of the first center electrode is connected to an input port, whereas the other end is connected to an output port. One end of the second center electrode is connected to the output port, whereas the other end is connected to a ground port. A matching capacitor and a resistor are connected between the input port and the output port. An inductor and a capacitor constituting an LC resonant circuit are connected in series with the resistor. | 2009-03-05 |
| 20090058552 | HIGH-FREQUENCY MODULE, AND MOBILE TELEPHONE AND ELECTRONIC DEVICE PROVIDED THEREWITH - A high-frequency module includes: a mixer circuit performing frequency conversion by mixing a local oscillation signal with a reception signal; a filter circuit eliminating an unnecessary frequency component from the signal outputted from the mixer circuit; a controllable-gain amplifier circuit amplifying and outputting the signal outputted from the filter circuit; and an impedance circuit (such as a resistive element, inductance element, or a chip bead) interposed between the output terminal of the amplifier circuit and the input terminal of a demodulation circuit in the succeeding stage so as to apparently increase the input impedance of the demodulation circuit. | 2009-03-05 |
| 20090058553 | Non-reflective SPNT switch - A non-reflective SPNT switching device comprises one pole, at least three throws, a plurality of main switches, and a plurality of bridge switches. The bridge switches enable all throws to be non-reflective. Each main switch is coupled between the pole and one of the throws. One main switch has a first (eg ON) state, the one main switch being coupled to an active throw in a conducting signal path, and each other main switch has a second (eg OFF) state. Each throw is operably coupled to first and second adjacent throws through first and second adjacent bridge switches. For the active throw, the first and second bridge switches have the second state. For each non-active throw, one of the adjacent bridge switches has the first (eg ON) state and one of the adjacent bridge switches has the second state. | 2009-03-05 |
| 20090058554 | Band switching by diplexer component tuning - A circuit and antenna arrangement includes a diplexer having a single radio frequency input/output interface and dual feed connections with an antenna adapted for use over a plurality of frequency bands. The diplexer has a capacitance connected between the radio frequency input/output interface and the antenna, and further has an additional capacitance that is selectively one of connected or not connected in parallel with the capacitance. In one embodiment the additional capacitance may be a capacitor in series with a switch, while in another embodiment the additional capacitance may be a MEMS variable capacitor. | 2009-03-05 |
| 20090058555 | ELASTIC WAVE DUPLEXER - An elastic wave duplexer includes a transmission filter chip and a reception filter chip each defined by an elastic wave filter chip and flip-chip bonded to a laminated board. A coil-shaped line including coil-shaped line patterns is provided inside the laminated board. The coil-shaped line defines an impedance matching circuit. In plan view, the transmission filter chip is disposed on one side of a center line passing through the approximate center of the laminated board and extending between a first edge and a second edge, and the reception filter chip is disposed on the other side of the center line. The coil-shaped line is disposed on the side on which the reception filter chip is disposed. | 2009-03-05 |
| 20090058556 | ANTENNA END FILTER ARRANGEMENT - An arrangement for filtering the transmitting signals in a radio device using frequency division duplex. In a radio transmitter, in which the transmitting signal is divided to a plurality of antennas (ANT | 2009-03-05 |
| 20090058557 | ANTENNA SHARING DEVICE - An antenna duplexer includes a piezoelectric substrate having a surface, a grounding terminal to be grounded, first and second surface acoustic wave (SAW) filters mounted on the piezoelectric substrate, first and second terminals connected to the first and second SAW filters, respectively, and a line mounted on the surface of the piezoelectric substrate between the first SAW filter and the second SAW filter. A stray coupling path is produced between the first and second terminals. A first end of the line is connected to the grounding terminal. A second end of the line opens and is coupled capacitively to the stray coupling path. The antenna duplexer has large isolation characteristic between the surface acoustic wave filters. | 2009-03-05 |
| 20090058558 | Device and Connecting Method - One end of a power-supply bus is connected to a power supply through a ferrite bead. The power-supply bus is connected to power-supply terminals. The power-supply terminals are connected at positions in such a manner that a terminal with a higher intensity is connected closer to the other end of the power-supply bus. Ground terminals are connected to ground. Capacitors are bypass capacitors or decoupling capacitors, for example, and connected between respective power-supply terminals and ground. | 2009-03-05 |
| 20090058559 | MICROPROCESSOR COMMON-MODE EMISSIONS REDUCTION CIRCUIT - An apparatus with reduced common-mode (CM) emissions from of a microprocessor includes a circuit board, first and second capacitors and a common-mode (CM) choke. The circuit board has a connector configured for connection to an external wire harness, which may act as an antenna generating CM RF emissions. The microprocessor includes a power pin (VCC), a ground pin (VSS), and at least one high impedance input pin. The first capacitor is connected across the power and ground pins. The second capacitor is connected across the high impedance input pin and the ground pin. The common-mode (CM) choke is electrically intermediate the power and ground pins, on the one hand, and the corresponding power and ground terminals of the connector on the other hand. The CM choke is disposed a preselected distance from the microprocessor. The preselected distance, which may be as close as possible, is configured to achieve an effective amount of common-mode emissions attenuation. The power and ground terminals are coupled to electrically conductive first traces on the circuit board, while the power and ground pins are coupled to electrically conductive second traces on the circuit board. The first traces are located outside a predefined isolation zone surrounding the second traces. The isolation zone is configured in size and shape so as to substantially minimize capacitive coupling between the second traces and the first traces. | 2009-03-05 |
| 20090058560 | Power plane and a manufacturing method thereof - A power plane includes a first circuit region and a second circuit region. The length of the first circuit region or second circuit region is related to the noise frequency to be filtered out. The width of the first circuit region can be wider or narrower than the width of the second circuit region. While manufacturing the power plane, a predetermined length is decided according to the resonance frequency of an original power plane, then the proposed power plane is formed with the first circuit region and the second circuit region of a predetermined length, and making the width of the first circuit region wider or narrower than the width of the second circuit region, such that the noises with the resonance frequency can be mitigated. | 2009-03-05 |
| 20090058561 | Multi-Ring Resonator System and Method - A system and method are provided which includes ring resonator structures coupled together with beam structure(s). The ring resonators are configured to operate in the contour or breathe mode. The center of the coupling beam structure is used as a nodal anchor point for anchoring the ring resonators and the beam structures, and also provides a reflecting interface. In an embodiment, the coupling beam structure includes two quarter-wavelength matched beams and an anchor located at a nodal point for coupling the two quarter-wavelength matched beams and ring resonator structures. The symmetric ring design also provides a differential drive and sense configuration while balancing the driving forces about the anchor located at the center of the beam structure. The system exhibits low energy losses while providing large sensing signals and a high quality factor (Q) of about 186,000 at a resonant frequency of about twenty-nine (29) MHz. | 2009-03-05 |
| 20090058562 | Sensor, Method for Sensing, Measuring Device, Method for Measuring, Filter Component, Method for Adapting a Transfer Behavior of a Filter Component, Actuator System and Method for Controlling an Actuator Using a Sensor - A sensor for sensing a measurand is described, the sensor comprising a coplanar waveguide with a first surface and a second surface opposite to the first surface; a first structure with a first periodically varying dielectric characteristic, the first structure being arranged on the first surface of the coplanar waveguide; and a second structure with a second periodically varying dielectric characteristic, the second structure being arranged on the second surface of the coplanar waveguide, wherein a unit-cell of the structures with periodically varying dielectric characteristics is dimensioned such that the sensor has a frequency dependent transfer behavior with at least one transfer minimum, and wherein the sensor is implemented such that the measurand influences the first periodically varying dielectric characteristic of the first structure or the second periodically varying dielectric characteristic of the second structure or a relation between such first structure and second structure. | 2009-03-05 |
| 20090058563 | Frequency Tunable Filter - A frequency tunable filter comprises a housing having a plurality of walls therein defining a plurality of cavities; a cover mounted on the housing; a plurality of resonators contained in the cavities; at least one sliding member located between the cover and the resonators; and a plurality of metal tuning elements attached to a lower part of the sliding member, wherein frequency tuning is performed by sliding of the sliding member. | 2009-03-05 |
| 20090058564 | TM Mode Evanescent Waveguide Filter - Waveguide filters utilizing the TM modes in an evanescent waveguide are provided. The Q of such filters surpasses any evanescent, dual and triple mode filters in propagating or evanescent waveguides. The waveguide filter in accordance with the present invention features a small size, as well as ease and simplicity in its manufacture when compared with conventional filters. Filters of exceptionally high Q and very low loss, when compared to conventional filters, can be obtained by employing TM modes in an evanescent waveguide. The TM mode evanescent filter has a higher Q than either the evanescent TE mode standard filter of a single mode propagating waveguide (TM or TE) or even the dual or triple mode filters in evanescent or propagating waveguides. | 2009-03-05 |
| 20090058565 | RESONATOR APPARATUS HAVING DIRECT-COUPLED RESONATORS - A resonator apparatus and ferromagnetic resonance filter are described. The apparatuses and filters only include perturbation coils about an input resonator element and an output resonator element. | 2009-03-05 |
| 20090058566 | Attachment of Deep Drawn Resonator Shell - An apparatus includes a shell member having an interior width, where the shell includes a closed end and an open end, and a nut that includes a plurality of laterally extending resilient leg. The legs define an outer width of the nut, and when the legs are in a relaxed state the outer width of the nut is greater than the interior width of the shell. The nut is adapted for at least partially entering the open end of the shell member, such that the legs are placed in a tensioned state in which the legs define the outer width to be smaller than or equal to the interior width of the shell. The apparatus also includes a base plate adapted for receiving the shell member and securing the shell member to the base plate with the closed end of the shell facing away from the base plate through cooperation with the nut when the nut is at least partially within the shell member. | 2009-03-05 |
| 20090058567 | High speed electronics interconnect and method of manufacture - Fundamental interconnect systems for connecting high-speed electronics elements are provided. The interconnect systems consists of signal line, dielectric system with open trench or slot filled up with air or lower dielectric loss material, and the ground plane. The signal line could be for example, microstripline, strip line, coplanar line, single line or differential pairs. The interconnect system can be used for on-chip interconnects or can also be used for off-chip interconnects. The fundamental techniques provided in this invention can also be used for high-speed connectors and high-speed cables. | 2009-03-05 |
| 20090058568 | High speed electronics interconnect and method of manufacture - Fundamental interconnect systems for connecting high-speed electronics elements are provided. The interconnect systems consists of signal line, dielectric system with open trench or slot filled up with air or lower dielectric loss material, and the ground plane. The signal line could be for example, microstripline, strip line, coplanar line, single line or differential pairs. The interconnect system can be used for on-chip interconnects or can also be used for off-chip interconnects. The fundamental techniques provided in this invention can also be used for high-speed connectors and high-speed cables. | 2009-03-05 |
| 20090058569 | Coaxial waveguide microstructures having an active and methods of formation thereof - Provided are coaxial waveguide microstructures. The microstructures include a substrate and a coaxial waveguide disposed above the substrate. The coaxial waveguide includes: a center conductor; an outer conductor including one or more walls, spaced apart from and disposed around the center conductor; one or more dielectric support members for supporting the center conductor in contact with the center conductor and enclosed within the outer conductor; and a core volume between the center conductor and the outer conductor, wherein the core volume is under vacuum or in a gas state. Also provided are methods of forming coaxial waveguide microstructures by a sequential build process and hermetic packages which include a coaxial waveguide microstructure. | 2009-03-05 |
| 20090058570 | WIRING BOARD, METHOD OF DESIGNING THE SAME, AND ELECTRONIC APPARATUS - According to one embodiment, a wiring board includes a transmission line provided to perform communications between a first semiconductor chip and a second semiconductor chip, the transmission line is formed of a distributed constant wiring portion having a characteristic impedance matched to one of an output impedance of the first semiconductor chip and an output impedance of the second semiconductor chip, and a lumped constant wiring portion which is narrower than the distributed constant wiring portion and shorter than a length which can be regarded as a lumped constant circuit. | 2009-03-05 |
| 20090058571 | Connector and waveguide assembly - A waveguide connector is provided. The connector includes a connecting portion having a plurality of conductive convex portions that are deformable by an external force. The convex portions are formed with a height and an interval less than ¼ wavelength of a propagating electrical wave to be propagated inside waveguides. | 2009-03-05 |
| 20090058572 | SIGNAL RECEIVING APPARATUS AND CONTROL METHOD THEREOF - A signal receiving apparatus includes: a tuning unit which has at least one tuner; a communication unit which communicates at least one external device; and a controller which divides an entire channel frequency band to be assigned to the tuning unit and a tunable device, and controls the tuning unit and the communication unit to tune the assigned channel frequency bands if the tunable device is present among the external devices. | 2009-03-05 |
| 20090058573 | Power switching apparatus and method of controlling the same - A power switching apparatus includes a breaker unit, an operating unit, a measuring unit, and a controlling unit. The breaker unit is connected on a three-phase current line, and includes switches each corresponding to one of phases of the three-phase current line. The operating unit simultaneously turns on or off the switches. The measuring unit measures a current flowing in each phase, and determines a time point where current flowing in one of the phases becomes zero as a reference time point. The controlling unit controls, when interrupting load current, the operating unit to turn off the switches in a range from 20 degrees to 40 degrees of an electric angle from the reference time point. | 2009-03-05 |
| 20090058574 | Electronic circuit breaker and method - An electronic circuit breaker has an input, an output, and a switch electrically connected between the input and the output. The electronic circuit breaker monitors the energy dissipated by the switch and opens the switch when the energy reaches a threshold value in order to protect the switch. The electronic circuit breaker also monitors the current through the switch and opens the switch when necessary to protect the load. | 2009-03-05 |
| 20090058575 | Magnetic activation and deactivation circuit and system - A circuit ( | 2009-03-05 |
| 20090058577 | ELECTROMAGNETIC RELAY - In order to provide an electromagnetic relay in which mold manufacturing and assembling work are easy, the electromagnetic relay comprises: a base | 2009-03-05 |
| 20090058578 | PORTABLE ELECTRONIC DEVICE WITH HALL SENSOR - A portable electronic device includes a cover section ( | 2009-03-05 |
| 20090058579 | MAGNET ASSEMBLY FOR A MAGNET VALVE - The invention relates to a magnet assembly for a magnet valve. The assembly has an inner pole and an outer pole as well as a coil. The coil is arranged between the inner pole and the outer pole and the coil wound directly onto the inner pole. According to the invention, the magnet assembly is used for actuating a closing element in a magnet valve. | 2009-03-05 |
| 20090058580 | Magnetic Levitation System and Method - A magnetic levitation system has a substantially circular levitation track that is magnetically repulsive and a substantially circular propulsion track adjacent the levitation track that is magnetically repulsive. The system further has an end effector, which has a first array of magnets positioned to magnetically interface with the levitation track and a second array of magnets positioned to magnetically interface with the propulsion track to create propelling magnetic forces. The system further has a rotation device for radially rotating the end effector over the levitation track until the end effector levitates and reaches a threshold speed such that the propelling magnet forces generated by the second array of magnets and the propulsion track tend to propel the end effector radially. | 2009-03-05 |
| 20090058581 | COMPACT LINEAR ACTUATOR AND METHOD OF MAKING SAME - This invention describes a compact linear moving coil actuator that incorporates a piston bobbin coil assembly that provides a shaft with linear reciprocal movement. Optionally, a rotary motor can be coupled to the shaft to provide rotary reciprocal movement. The piston and bobbin sections of the piston bobbin coil assembly may be integrally formed as a single unitary piece and easily changed in size and/or configuration during manufacture to enable easier and more cost-effective assembly of various actuator sizes and configurations. Additionally, the compact size of the actuator requires less work space and also allows multiple actuators to be positioned next to each for various applications. | 2009-03-05 |
| 20090058582 | SYSTEMS AND METHODS FOR EXTRACTING NET-POSITIVE WORK FROM MAGNETIC FORCES - This invention relates generally to magnets, and more specifically, to improved systems and methods for extracting net-positive work from magnetic forces. In one embodiment, the invention includes the steps of magnetically coupling a first stack magnet to a gate magnet; permitting at least one wheel magnet to approach the first stack magnet and the gate magnet, the first stack magnet and the gate magnet exerting magnetic attractive force upon the at least one wheel magnet; facilitating separation of the gate magnet and the first stack magnet using magnetic force from at least one additional magnet; facilitating movement of the gate magnet and the at least one wheel magnet towards a second stack magnet; facilitating magnetic coupling of the gate magnet to the second stack magnet; permitting the at least one wheel magnet to distance itself from the gate magnet and the second stack magnet, the gate magnet and the second stack magnet exerting magnetic repulsive force upon the at least one wheel magnet; facilitating separation of the gate magnet and the second stack magnet using magnetic force from the at least one additional magnet; facilitating movement of the gate magnet towards the first stack magnet; and facilitating magnetic coupling of the gate magnet to the first stack magnet. | 2009-03-05 |
| 20090058583 | MAGNET CAP - One or more method(s), system(s), and/or device(s) produces an assembly for securing a product to a dissimilar material, such as a magnet to plastic. A magnet assembly may include a plastic cap having one or more wings extending laterally from a side surface of the plastic cap. A plastic holder defines a product cavity and has one or more grooves formed to integrally fit with the one or more wings of the plastic cap. A magnet is positioned within the product cavity. The plastic cap is joined to the plastic holder, such as through staking or welding, to capture the magnet within the product cavity. | 2009-03-05 |
| 20090058584 | THREE-PHASE MULTI-WINDING DEVICE - A three-phase, multi-winding includes a core, the core including a hub and an outer shell around a perimeter of the hub. wherein the hub and the outer shell are in a fixed position with respect to each other. The core also includes multiple slots. In addition to the core, the multi-winding device includes a primary winding positioned in at least two of the slots; and multiple spatially distributed secondary windings, wherein at least one of the secondary windings is positioned proximate the primary winding in at least one of the two slots. | 2009-03-05 |
| 20090058585 | ELECTRONIC SENSOR AND METHOD FOR THE MANUFACTURE OF A SENSOR - The present invention relates to an electronic sensor, particularly an inductive sensor, comprising a casing sleeve, a sensor element for measuring a physical measurand, the sensor element being placed at a measurement end of the casing sleeve, an electronic module located in the casing sleeve and a connector, which is placed on a connection end of the casing sleeve opposite to the measurement end. According to the invention, the sensor is characterized in that the casing sleeve is provided with a plastic internal lining, which is closed at the measurement end of the casing sleeve and that the internal lining extends to the casing sleeve connection end to such an extent that the connector is in a sealing engagement with the internal lining. The invention also relates to a method for the manufacture of a sensor. | 2009-03-05 |
| 20090058586 | METHOD AND APPARATUS FOR MOUNTING A CIRCUIT BOARD TO A TRANSFORMER - An electromagnetic assembly which has a base, at least one winding, and a magnetic core connected to the base, where at least one winding is mounted on the magnetic core. A housing part encloses at least part of at least one winding, and a printed circuit board is mounted to the housing part. The electromagnetic assembly can be a transformer or inductor, for example. | 2009-03-05 |
| 20090058587 | Two Piece Bi-Metal Coil Terminal and Electrical Coil Assembly Incorporating Same - An electrical coil assembly utilizing a bimetallic two-piece terminal construction and a method of manufacturing same are provided. The inner terminal structure utilizes a material that aids in the touchless attachment of the fine gauge magnetic wire to the inner terminal structure. The low mass of the inner terminal structure allows for increased winding speeds during the manufacturing process. The outer terminal structure utilizes a material that provides good corrosion resistance and electrical conductivity. The inner and outer terminal structures are electrically attached after the winding and electrical attachment process of the fine gauge magnetic wire. The coil and two-piece terminal connectors may then be encapsulated to provide a final electrical coil assembly. | 2009-03-05 |
| 20090058588 | WIRE WOUND ELECTRONIC PART - A wire wound electronic part includes a core having a wire wound core and flanges formed on both ends thereof, a coil conductor wound around the wire wound core and terminal electrodes disposed at the bottom of the flange, in which both ends of the coil conductor are conductively connected to the terminal electrodes by a solder, wherein a pair of grooves are formed at the bottom crossing the wire wound core of one of the flanges. The groove has a bottom and side walls disposed being slanted on both sides thereof, in which the vertical height for the side wall is formed larger than the length for the bottom of the side wall. The terminal electrodes are contained in the groove, and edge portion in the lateral direction of the terminal electrode is restricted by the side wall of the groove. The edge portion in the lateral direction of the terminal electrode is restricted by the side wall of the groove, which makes the lateral size stable and suppresses the movement of the molten solder in the lateral direction of the groove, thereby preventing unstable height and attitude of the wire wound electronic part upon mounting to a circuit substrate. | 2009-03-05 |
| 20090058589 | SUSPENSION INDUCTOR DEVICES - Suspension inductor devices are provided. A suspension inductor device includes a dielectric substrate and a suspension induction coil. The suspension induction coil includes an input end disposed on the dielectric substrate. A spiral coil is wound from the dielectric substrate to an interconnection. The interconnection is disposed in the spiral coil and connects the input end and the spiral coil. An output end is disposed on the dielectric substrate and adjacent to the input end. | 2009-03-05 |
