11th week of 2009 patent applcation highlights part 21 |
Patent application number | Title | Published |
20090066387 | LATCH CIRCUIT - A latch circuit ( | 2009-03-12 |
20090066388 | Schmitt Trigger Circuit - A Schmitt trigger circuit having at least eight transistors is provided. The first transistor can have a source connected to a power terminal, and the second transistor can have a source connected to a drain of the first transistor. The third transistor can have a source connected to the drain of the first transistor, and the fourth transistor can have a source connected to a drain of the third transistor and a drain electrically connected to a ground terminal. The fifth transistor can have a drain connected to a drain of the second transistor, gates of the third and fourth transistors, and an output terminal. The sixth transistor can have a drain connected to a source of the fifth transistor and a source connected to the ground terminal. The seventh transistor can have a source connected to the source of the fifth transistor and a gate connected to the output terminal. The eighth transistor can have a source connected to a drain of the seventh transistor, a gate connected to the output terminal, and a drain electrically connected to the power terminal. | 2009-03-12 |
20090066389 | Power Controlling Apparatus Applied to Biochip and Operating Method Thereof - The invention discloses a power controlling apparatus for a biochip including M regions. Each region includes a plurality of cells respectively. The power controlling apparatus includes a pulse generating module, a combinational circuit, and M controlling modules. The pulse generating module generates a pulse. The combinational circuit receives the pulse and generates M controlling signals. Each controlling signal has a predetermined phase which is different from the phase of the other controlling signal. The M controlling modules are electrically connected to the combinational circuit. Each of the M controlling signals corresponds to and activates one of the M controlling modules to selectively power on one corresponding region of the M regions. The cells in the corresponding region which is powered have an action potential refractory time that is longer than the power-on interval of the corresponding region. | 2009-03-12 |
20090066390 | TIMING CONTROL CIRCUIT AND SEMICONDUCTOR STORAGE DEVICE - Disclosed is a timing control circuit which receives a first clock having a period T | 2009-03-12 |
20090066391 | High voltage, high speed, high pulse repetition rate pulse generator - A high voltage, high speed, and high repetition rate pulse generator solves the high pulse repetition rate limitations associated with RF power amplifiers. The pulse generator employs resonant techniques to provide current limiting features that allow for continued high voltage, high speed, and high repetition pulse rate operation of the pulse generator without impairment of the pulse generator during both short circuit and open circuit load conditions. | 2009-03-12 |
20090066392 | ELECTRONIC CIRCUIT FOR MEASURING A PHYSICAL PARAMETER SUPPLYING AN ANALOGUE MEASUREMENT SIGNAL DEPENDENT UPON THE SUPPLY VOLTAGE - The electronic circuit ( | 2009-03-12 |
20090066393 | SWITCH CIRCUIT - A switch circuit includes a pair of metal oxide semiconductor (MOS) switches and an adjusting unit. Each of the MOS switches has an input terminal and an output terminal. The MOS switches receive a pair of differential input voltages at the input terminals thereof, and output a pair of differential output voltages at the output terminals thereof when the MOS switches conduct. The adjusting unit changes a difference between common mode levels of the input terminals and the output terminals of the MOS switches so as to adjust linearity of differential mode resistances of the MOS switches. | 2009-03-12 |
20090066394 | PEAKING CONTROL CIRCUIT - There are provided a peaking detection part detecting a peaking amount in an output part of an inductor peaking circuit and a control signal generation part varying a circuit parameter of the inductor peaking circuit based on the peaking amount detected by the peaking detection part. Particularly, the inductor peaking circuit has inductors and resistors inserted in series between the output part and a power supply, and capacitances coupled in parallel between the output part and an earth (GND), and depending on respective values of these inductors, resistors and capacitances, it is possible to suppress a peaking generated in the output part. | 2009-03-12 |
20090066395 | ACTIVE CLAMP FOR SEMICONDUCTOR DEVICE - An active clamp circuit for avalanching and clamping voltage at a gate terminal of a first transistor connected to a power source. The active clamp circuit includes a second transistor for turning ON the first transistor; a third transistor having EPI breakdown voltage less than that of the first transistor; a resistor coupled between a node and source and gate terminals of the third transistor; and an amplifier for comparing voltage on the resistor to a reference voltage and providing an output signal to control the second transistor, wherein, when the third transistor avalanches and the voltage across the resistor exceeds the reference voltage, the output signal turns ON the second transistor thereby clamping the gate terminal of the first transistor, wherein the active clamp circuit tracks the channel characteristic of the first transistor. | 2009-03-12 |
20090066396 | LEVEL SHIFTING CIRCUIT - A level shifting circuit is provided. Thin oxide devices are utilized to reduce the threshold, and thick oxide devices are utilized to protect the thin oxides from breakdown. An input voltage input voltage swings between a low supply voltage and ground. An output voltage swings between a high supply voltage and the ground. An inverter with input connected to the input voltage, outputs an inverted input voltage. The input voltage is subsequently between 0.5V to 2.5V, and the output voltage is subsequently between 3V to 10V. | 2009-03-12 |
20090066397 | LEVEL SHIFT CIRCUIT - In a level shift circuit, even when a power supply voltage of an input signal is reduced, a level shift operation is reliably performed without causing increase in circuit area and process costs. For a pair of n-type transistors which receive an input signal and a reverse signal of the input signal as a pair of complementary signals at their gates, respectively, a layout which allows reduction in unit gate width size is adopted. The layout configuration includes a plurality of divided rectangular doped regions which function as drains and sources and a plurality of gates arranged to align in a gate length direction with a gate width direction according with a short side direction of the doped regions. The gates are electrically connected with one another, the drains are electrically connected with one another, and the sources are electrically connected with one another. | 2009-03-12 |
20090066398 | Voltage Level Shifter Circuit - A voltage level shifter circuit is provided. A high power voltage is input to a first power voltage terminal, an enable signal is input to an enable terminal, and an intermediate voltage level between the first power voltage and a high enable signal voltage is input to a second power voltage terminal. First and second inverters are connected to the enable terminal. A first transistor has a source connected to the second inverter. A second transistor has a drain connected to a drain of the first transistor, a source connected to the second power voltage terminal, and a gate connected to an output terminal of the first inverter. Third and fourth transistors have gates connected to the outputs of the first and second transistors, the fourth transistor having a source connected to the first power voltage terminal. | 2009-03-12 |
20090066399 | Level shift circuit - A level shift circuit includes an input stage and an output stage coupled to each other by two nodes. The input stage changes the voltages on the nodes according to an input signal, and the output stage determines an output signal according to the voltages on the two nodes. In a transition state, the input stage provides a large current to charge or discharge the first node or the second node so as to quickly change the voltage thereon. In a steady state, the input stage lowers the current so as to reduce power consumption. | 2009-03-12 |
20090066400 | Circuit for Switching a Voltage-Controlled Transistor - A circuit comprising a voltage-controlled transistor (T | 2009-03-12 |
20090066401 | ANALOG INSULATION/MULTIPLEXER - An analog insulation multiplexer not causing magnetic saturation even if a small transformer is used and having a wide use temperature range. The analog insulation multiplexer includes: a first switching element for generating a drive control signal in accordance with an external signal; a drive insulation transformer for receiving the drive control signal on a primary side via a first resistor and for delivering an insulated drive control signal from a secondary side; a second switching element for chopping an analog signal input in accordance with the insulated drive control signal; and an analog signal insulation transformer for delivering an insulated chopped analog signal on a secondary side. The analog insulation multiplexer further includes a secondary side output adjusting circuit having a second resistor connected, on the primary side of the drive insulation transformer, in parallel to the first resistor and a capacitor having one end connected to a ground and another end connected in series to the second resistor. | 2009-03-12 |
20090066402 | GATE DRIVE CIRCUIT - A gate drive circuit includes a turn-on side circuit for turning on a gate of a power switching device, the turn-on side circuit including a first turn-on side power supply circuit and a second turn-on side power supply circuit, the first turn-on side power supply circuit including: a first turn-on voltage source for supplying a first turn-on voltage; first turn-on wiring; and a first turn-on switch connected in the first turn-on wiring and controlled by a gate drive signal; and the second turn-on side power supply circuit including: a second turn-on voltage source for supplying a second turn-on voltage applied to the gate of the power switching device to set the power switching device in a steady (on) state; second turn-on wiring; a second turn-on switch connected in the second turn-on wiring; and a turn-on side delay circuit for delaying the gate drive signal and passing it to the second turn-on switch. | 2009-03-12 |
20090066403 | EMC PROTECTION CIRCUIT - A protection circuit for protecting an electronic circuit against EMC disturbances and/or negative transient overvoltage pulses comprises a switch in series between a power supply and the electronic circuit to be protected; a comparator for comparing a first operating parameter with a second operating parameter and producing a comparison signal, the comparison signal being used as a control signal for controlling opening and closing of the switch; and a delay circuit adapted for delaying closing of the switch. A corresponding method is also provided. | 2009-03-12 |
20090066404 | MOSFET WITH TEMPERATURE SENSE FACILITY - A transistor ( | 2009-03-12 |
20090066405 | APPARATUS AND METHOD FOR GENERATING INTERNAL VOLTAGE IN SEMICONDUCTOR INTEGRATED CIRCUIT - An internal voltage generating apparatus includes: a voltage detector that detects the level of the internal voltage and outputs a fixed level detection signal and a variable level detection signal. An oscillation controller generates an oscillation enable signal according to whether the fixed level detection signal and the variable level detection signal are enabled. An internal voltage generator generates the internal voltage in response to the oscillation enable signal. | 2009-03-12 |
20090066406 | CHARGE PUMP DEVICE AND OPERATING METHOD THEREOF - A charge pump device and an operating method thereof are proposed. The charge pump device is composed of a plurality of stages of charge transfer units and an output unit that are cascaded together. Each stage of the charge transfer units includes a first node for input, a second node for output, a first circuit and a first capacitor. The first node or the second node is biased at a bias provided for the first circuit. Thereby, the first capacitors of the odd-numbered stage and the even-numbered stage of charge transfer units can respectively receive two clock signals that are mutually opposite in phase for complementary switching operating. Collocated with the switching of the output unit, an output voltage with a high negative level can be generated. | 2009-03-12 |
20090066407 | CHARGE PUMP SYSTEMS AND METHODS THEREOF - A charge pump system includes a plurality of charge pump cells coupled in series between an input and an output and a voltage regulator system. The voltage regulator system is coupled to an output from the plurality of charge pump cells and to each of the plurality of charge pump cells to control a charge and discharge in one or more of the plurality of charge pump cells. | 2009-03-12 |
20090066408 | Step-up power supply circuit and stepping-up method - Boosting operation of a charge pump is performed at a fixed period irrespective of the state of a load. A regulator for controlling a charge pump includes: a frequency dividing circuit generating a frequency-divided clock having a period that is twice that of a boost clock; a voltage dividing circuit generating a plurality of divided voltages having voltage values that differ from one another; a comparator circuit comparing each of the divided voltages and a reference voltage and outputting a plurality of comparison-result signals; a selection signal generating circuit reading in logic of each of the comparison-result signals in synch with an edge of the frequency-divided clock and outputting selection signals; a duty converting circuit outputting a plurality of clocks having different ON duties; a selector selecting any one of the plurality of clocks or “H”-level logic as a PWM signal based upon the selection signals; and a gate circuit taking the logical AND between the frequency-divided clock and the PWM signal and generating control signals for controlling series-parallel switching. | 2009-03-12 |
20090066409 | BIAS CIRCUIT AND VOLTAGE-CONTROLLED OSCILLATOR - A bias circuit and a voltage-controlled oscillator (VCO) thereof suitable for improving the stability of the bias circuit are provided. The bias circuit includes: an error amplifier circuit, having an inverting input terminal connected to a reference voltage; a voltage-controlled current source, having a voltage control terminal connected to a voltage output terminal of the error amplifier circuit, in which a current generated by the current source is controlled by a voltage at the voltage output terminal of the error amplifier circuit; a delay control circuit, having a current input terminal connected to the voltage-controlled current source, an output terminal connected to a non-inverting input terminal of the error amplifier circuit, and a voltage input terminal connected to a supply terminal of the control voltage, and the delay control circuit is adapted to adjust an output voltage of the delay control circuit according to a control voltage. | 2009-03-12 |
20090066410 | CORE VOLTAGE GENERATOR - Core voltage generator including a comparison unit configured to compare a reference voltage with a feedback core voltage to output a difference between the reference voltage and the feedback core voltage, an amplification unit configured to output a core voltage by amplifying an external power supply voltage according to an output signal of the comparison unit and a mute unit configured to maintain a voltage level of an output terminal of the amplification unit at a ground voltage level when the output of the core voltage is interrupted. | 2009-03-12 |
20090066411 | METHOD FOR DESIGNING INPUT CIRCUITRY FOR TRANSISTOR POWER AMPLIFIER - A circuit having: an input matching network; a transistor coupled to an output of the input matching network; and wherein the input matching network has a first input impedance when such input matching network is fed with an input signal having a relatively low power level and wherein the input matching network has an input impedance different from the first input impedance when such input matching network is fed with an input signal having a relatively high power level. | 2009-03-12 |
20090066412 | CLASS-D AMPLIFIER CIRCUIT - A class-D amplifier circuit of one aspect includes a gain controller, a pulse-width modulator, an output driver, and a drive controller. The gain controller selectively amplifies an analog input signal according to a level control signal, and outputs a corresponding gain-adjusted analog input signal. The pulse-width modulator converts the gain-adjusted analog input signal into a pulse signal. The output driver includes a plurality of output driver circuits which generate an amplified pulse signal corresponding to the pulse signal output by the pulse-width modulator. The drive controller selectively disables a subset of the plurality of output driver circuits according to the level control signal. | 2009-03-12 |
20090066413 | Method and Apparatus for Diminishing Mismatch Effects Between Switched Signals - A circuit for diminishing mismatch effects between at least two switched signals includes at least three processing circuits configured to receive at least two switched signals such that each of the switched signals is associated with one of the processing circuits leaving at least one unassociated processing circuit. A controller circuit is configured to switch one of the switched signals to be associated with one of the unassociated processing circuit(s) upon at least one specified interval such as, for example, at a transition of the switched signal. The circuit may be incorporated into an audio amplifier configured to provide information carried on the switched signals to one or more speakers that provide an audio output. A one-processor circuit approach includes switching frames of a switched signal between positive and negative inputs of a processor circuit to average out errors introduced by the processor circuit. | 2009-03-12 |
20090066414 | Gain control methods and systems in an amplifier assembly - A Variable Gain Amplifier (VGA) amplifies an input signal according to a gain, to produce an amplified signal. A detector module detects a power indicative of a power of the amplified signal. A comparator module compares the detected power to a high threshold, a low threshold and a target threshold intermediate the high and low thresholds. A controller module changes the gain of the VGA so as to drive the detected power in a direction toward the middle threshold when the comparator module indicates the detected power is not between the high and low thresholds. | 2009-03-12 |
20090066415 | OPERATIONAL AMPLIFIER HAVING HIGH SLEW RATE AND STABILITY, AND OPERATING METHOD THEREOF - An operational amplifier includes a differential amplifier, an output stage, and a control unit. The differential amplifier generates a first current through a first output node and a second current through a second output node in response to a voltage difference between a first input signal input through a first input terminal and a second input signal input through a second input terminal. The output stage generates an output signal through an output node. The control unit receives a voltage of the first output node and a voltage of the second output node, as bias voltages, and controls an output current of the output stage to determine the output signal of the output stage in response to the received voltages of the first and second output nodes. | 2009-03-12 |
20090066416 | Push-pull amplifier - A push-pull amplifier is provided which, without depending on the overdrive voltage, can increase the peak value of the gate voltage for the output transistor to a level still higher than the conventional one, and is capable of producing an output current with low consumption current that is higher than that available with conventional push-pull amplifiers. The present invention includes a differential amplifier | 2009-03-12 |
20090066417 | High bandwidth apparatus and method for generating differential signals - An apparatus and method for generating differential signals. The apparatus includes a first operational amplifier receiving a first signal, a second operational amplifier receiving a second signal, and a first transistor. The first transistor includes a first gate, a first terminal, and a second terminal. Additionally, the apparatus includes a second transistor. The second transistor includes a second gate, a third terminal, and a fourth terminal. Moreover, the apparatus includes a first resistor coupled to the first terminal and the third terminal, and a second resistor coupled to the second terminal and the fourth terminal. Also, the apparatus includes a first current supplier coupled to the first terminal, a second current supplier coupled to the second terminal, a third current supplier coupled to the third terminal, and a fourth current supplier coupled to the fourth terminal. | 2009-03-12 |
20090066418 | AMPLIFIER CIRCUIT AND COMMUNICATION DEVICE - There is provided an amplifier circuit having a common-source amplifier, an output load connected to an output terminal of the common-source amplifier, a buffer circuit connected to the output terminal of the common-source amplifier, a feedback circuit connected between an output terminal of the buffer circuit and an input terminal of the common-source amplifier, and a control circuit for controlling an impedance of the feedback circuit in accordance with a gain of the common-source amplifier. | 2009-03-12 |
20090066419 | VARIABLE GAIN AMPLIFIER CIRCUITS - A variable gain amplifier circuit has a variable gain amplifier (VGA), a string of resistors, a plurality of gain switches, a current source, and at least two current switches. A first input terminal of the VGA receives an input voltage signal. The string of resistors are coupled between an output terminal of the VGA and a bias voltage input terminal. Each of the gain switches is coupled between a second input terminal of the VGA and one of connection nodes between two of the resistors. Each of the current switches is coupled between the current source and one of the connection nodes. The current source provides a current through the turned-on current switch. | 2009-03-12 |
20090066420 | SOLID STATE POWER AMPLIFIER WITH MULTI-PLANAR MMIC MODULES - A solid state power amplifier (SSPA) system may include a radio frequency (RF) input, an RF waveguide split block, multiple monolithic microwave integrated circuit (MMIC) power amplifier modules, and/or a heat spreader. An MMIC power amplifier module may include a backing, a board, at least one MMIC, and/or a cover. A method for dissipating heat within an SSPA may include receiving an RF signal, splitting the RF signal, amplifying multiple RF signals, combining the multiple RF signals, generating heat, and/or dissipating heat. | 2009-03-12 |
20090066421 | Internal frequency compensation circuit for integrated circuit controllers - A frequency compensation circuit internal to an integrated circuit which comprises a transconductance amplifier having a first input configured to receive a reference voltage, a second input configured to receive an input voltage and an input current, a first output configured to output a first output current and a second output configured to output a second output current; and a compensation circuit connected to said second output of said transconductance amplifier, wherein said first output is connected to said second input. | 2009-03-12 |
20090066422 | DYNAMICALLY CONTROLLED OUTPUT SLEW RATE PAD DRIVER - Disclosed is a dynamically controlled, output slew rate pad driver that generates a controlled voltage on an interface node of an interface circuit, such as an input circuit, an output circuit, or a combined input/output circuit, to control the process of slewing the controlled voltage on the interface node. The slewing occurs substantially independently of capacitive loads connected to the interface node. Prior to initiation of the slewing process, an initial charge is generated on a storage capacitor. The storage capacitor is then connected to the gate of a driver transistor to charge the input parasitic gate capacitance of the driver transistor to approximately a gate threshold voltage of the driver transistor. A constant current source is also provided that is applied to the input of an integrating amplifier and an integrating capacitor that is connected to the interface node. The constant current is integrated to provide a controlled, slewed voltage on the interface node by charging the integrating capacitor with a constant current from the constant current source. | 2009-03-12 |
20090066423 | SPREAD SPECTRUM CLOCKING IN FRACTIONAL-N PLL - A combined spread spectrum and fractional-N phase locked loop circuit comprises a chain of a reference clock divider, a phase-frequency detector, a charge pump with loop filter, a voltage controlled oscillator that provides multiple phase outputs, and a feedback loop from the multiple phase outputs of the voltage controlled oscillator to a feedback input of the phase-frequency detector. The feedback loop includes a phase selector, a feedback divider and a control block with an output controlling said phase selector to select a particular phase as an input to the feedback divider. The control block includes spread spectrum logic circuitry receiving an input from the output of the phase selector and providing a directional control output signal and a phase step control signal. The control block further includes fractional logic circuitry receiving an input from the output of the phase selector and providing a phase step control signal. A logic interface circuit combines the directional control output signal from the spread spectrum logic circuitry, the phase step control signal from the spread spectrum logic circuitry, and the phase step control signal from the fractional logic circuitry. This means that when both of the spread spectrum logic circuitry and the fractional logic circuitry request a phase step in the same feedback clock period in the same direction, a single phase step control signal is passed to the phase selector and a further phase step control signal is passed to the phase selector in a subsequent clock period. Further, when the spread spectrum logic circuitry and the fractional logic circuitry request a phase step in the same feedback clock period in opposite directions, no phase step control signal is passed to the phase selector. | 2009-03-12 |
20090066424 | Programmable Interpolative Voltage Controlled Oscillator with Adjustable Range - A programmable interpolative voltage controlled oscillator (VCO) with adjustable frequency range output is provided. With the VCO, programmable delay cells whose size is modifiable based on control inputs to the programmable delay cells are utilized. A different set of control inputs may be provided to programmable delay cells of an inner sub-ring from the set of control inputs provided to programmable delay cells of a main ring of the VCO. The minimum frequency output of the VCO is governed by the main ring programmable delay cell strength with the maximum frequency output of the VCO being governed by a ratio of strengths of the main ring programmable delay cells to the inner sub-ring programmable delay cell. By modifying the control inputs to the inner sub-ring and main ring programmable delay cells, the minimum and maximum frequency outputs, and thus the range between these two frequency outputs, are made programmable. | 2009-03-12 |
20090066425 | FREQUENCY SYNTHESIZER HAVING MULTI-BAND VOLTAGE CONTROLLED OSCILLATOR - There is provided a frequency synthesizer including a multi-band voltage controlled oscillator having a plurality of voltage controlled oscillating cores outputting oscillation frequencies having different bands according to an input control voltage. Each of the voltage controlled oscillating cores outputs a frequency band divided into a plurality of bands, and the voltage controlled oscillating core operates by each of the divided bands, and one of the voltage controlled oscillating cores operates in one of the bands according to the control voltage. The frequency synthesizer further includes a comparator unit and an oscillation band-determining unit. The comparator unit compares the control voltage with a pre-set reference voltage range. The oscillation band-determining unit changes the band where the voltage controlled oscillating core operates into another one of the bands when the control voltage is out of the pre-set reference voltage range. | 2009-03-12 |
20090066426 | QUARTZ CRYSTAL DEVICE INCLUDING MONITOR ELECTRODE - A quartz crystal device includes: a crystal unit in which a crystal blank is hermetically encapsulated; and a mounting substrate housing an IC chip on which a circuit using the crystal blank is integrated. By joining an external terminal of the crystal unit and a bonding terminal of the mounting substrate, the mounting substrate is joined to the crystal unit to be integrated, and the quartz crystal device is configured. In the quartz crystal device, a crystal monitor terminal electrically connected to the bonding terminal is provided on an outer side surface of the mounting substrate, and even in a state in which the crystal unit and the mounting terminal are integrated, a vibration characteristic of the crystal blank is measurable by using the crystal monitor terminal. | 2009-03-12 |
20090066427 | Poly-phase frequency synthesis oscillator - A frequency synthesis/multiplication circuit and method for multiplying the frequency of a reference signal. In one embodiment, multiple versions of the reference signal are generated having different phases relative to one another, and these multiple versions are combined to form an output signal having a frequency that is a multiple of the frequency of the reference signal. | 2009-03-12 |
20090066428 | DEVICE FOR PROVIDING AN A.C. SIGNAL - A circuit for providing an A.C. signal including a number N of nanomagnetic oscillators, N being an integer greater than or equal to 2, each nanomagnetic oscillator providing a periodic signal; a unit for providing a control signal that can take N values, each periodic signal being associated with one of the values of the control signal; and a multiplexer receiving the N periodic signals and the control signal and providing the A.C. signal equal to one of the periodic signals according to the value of the control signal. | 2009-03-12 |
20090066429 | Voltage detection circuit and oscillator using the same - Provided is a voltage detection circuit that outputs a detection result when a voltage to be measured exceeds a predetermined voltage or falls below the predetermined voltage at a speed higher than that of a conventional case. The voltage detection circuit according to the present invention includes an input buffer that outputs a detection voltage to be input as an input voltage, and a voltage detection section that accelerates a rising of the input voltage in a transient state where the input voltage exceeds a predetermined threshold value, and accelerates a dropping of the input voltage in a transient state where the input voltage falls below the predetermined threshold value. The voltage detection circuit accelerates a change in the input voltage to output the detection result from an output buffer at high speed. | 2009-03-12 |
20090066430 | BATCH-FABRICATED, RF-INTERROGATED, END TRANSITION, CHIP-SCALE ATOMIC CLOCK - A chip scale atomic clock is disclosed that provides a low power atomic time/frequency reference that employs direct RF-interrogation on an end-state transition. The atomic time/frequency reference includes an alkali vapor cell containing alkali atoms, preferably cesium atoms, flex circuits for physically supporting, heating, and thermally isolating the alkali vapor cell, a laser source for pumping alkali atoms within the alkali vapor cell into an end resonance state by applying an optical signal along a first axis, a photodetector for detecting a second optical signal emanating from the alkali vapor cell along the first axis, a pair of RF excitation coils for applying an RF-interrogation signal to the alkali atoms along a second axis perpendicular to the first axis, a pair of bias coils for applying a uniform DC magnetic field along the first axis, and a pair of Zeeman coils for applying a Zeeman interrogation signal to the alkali atoms and oriented and configured to apply a time-varying magnetic field along the second axis through the alkali vapor cell. Another flex circuit is used for physically supporting the laser source, for heating the laser source, and for providing thermal isolation of the laser source. The laser source can be a vertical cavity surface emitting laser (VSCEL). The bias coils can be Helmholtz coils. | 2009-03-12 |
20090066431 | WIDE-BAND VOLTAGE CONTROLLED OSCILLATOR - A wide-band voltage controlled oscillator includes a cross-connected transistors for providing a stable oscillating signal, an inductor unit for providing an inductance for determining a resonance frequency, a varactor bank including a plurality of switchable variable-capacitance elements parallely connected to the inductor unit and having a varactor capacitance varying with the first switching signal and a tuning voltage, a subsection capacitor bank including a plurality of switchable capacitor elements parallely connected to the inductor unit and having predetermined capacitances for grouping frequency sections, and a binary-weighted capacitor bank including a plurality of binary-weighted capacitor arrays parallely connected to the inductor unit and a bank selector for selecting one of the binary-weighted capacitor arrays, wherein each binary-weighted capacitor arrays includes a plurality of parallely connected switchable capacitor elements selectively switched on by a third switching signal to determine a variable weighted capacitance of the tunable binary-weighted capacitor bank. | 2009-03-12 |
20090066432 | PLL Circuit and Semiconductor Device Having the Same - A PLL circuit includes a phase detector, a loop filter (LF), a voltage-controlled oscillator (VCO), and a frequency divider. The phase detector compares a phase of a signal Fs which is input from outside with a phase of a signal Fo/N which is input from the frequency divider. The loop filter generates a signal Vin by removing alternating current components from a signal input from the phase detector. The voltage-controlled oscillator outputs a signal Fo based on the signal Vin input from the loop filter. The frequency divider converts the signal Fo output from the voltage-controlled oscillator into Fo/N (frequency division by N), and outputs it to the phase detector. | 2009-03-12 |
20090066433 | Voltage controlled oscillator - The present invention provides a voltage controlled oscillator having a wide frequency variation range and an oscillation frequency that shows favorable linearity with respect to control voltage. The present invention includes an amplifier circuit | 2009-03-12 |
20090066434 | Oscillator Comprising a Startup Control Device - An oscillator device comprises an oscillator core, a capacitive loading unit having a controllable capacitance value and being connected to the oscillator core, and a memory device including a first and a second memory unit and being connected to the capacitive loading unit. The first memory unit is adapted to store a first value to be supplied to the capacitive loading unit for controlling the capacitance value during a start-up time period. The second memory unit is adapted to store a second value to be supplied to the capacitive loading unit for controlling the capacitance value during an operational time period. According to a method for start up of the oscillator device, the amplitude of an oscillator signal is measured. Further, the starting-time instant for the operational time period is chosen as the time instant when the oscillator signal exceeds a predetermined threshold value. | 2009-03-12 |
20090066435 | Time modulation with cosine function - A method and apparatus is described for a time modulated signal. A cosine function is used as the basis for the signal with time intervals at the maximum and minimum values of the cosine function defining the encoded data. The received waveform is twice differentiated to provide a cosine function from which zero crossings are detected and the time intervals determined. | 2009-03-12 |
20090066436 | MULTI-BRAND ELECTRONIC APPARATUS AND MULTI-BAND SIGNAL PROCESSING METHOD - A multi-band electronic apparatus and method thereof is provided. The method comprises outputting a first output signal in the first band by a first voltage controlled oscillator according to a switch control signal and a control voltage, outputting a second output signal in the second band by a second voltage controlled oscillator according to the switch control signal and the control voltage, the second band being not completely overlapped by the first band, performing frequency division selectively on the first output signal or the second frequency divided signal according to the switch control signal, and outputting a first frequency divided signal, determining a phase difference between the first frequency divided signal and a reference signal to output a phase difference signal, outputting the control voltage according to the phase difference signal, and selectively driving the first or the second voltage controlled oscillators by the control voltage according to the switch control signal. | 2009-03-12 |
20090066437 | High speed electrical 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. | 2009-03-12 |
20090066438 | IMPEDANCE MATCHING METHODS AND SYSTEMS PERFORMING THE SAME - Provided are an impedance matching method and a matching system performing the same. The method includes: measuring an electrical characteristic of the power transmission line; determining a pulse mode of the power source; extracting a control parameter for impedance matching from the electrical characteristic of the power transmission line; and controlling the matching system through the control parameter, wherein the matching system is controlled differently according to the pulse mode. | 2009-03-12 |
20090066439 | INPUT CIRCUITRY FOR TRANSISTOR POWER AMPLIFIER AND METHOD FOR DESIGNING SUCH CIRCUITRY - A circuit having: an input matching network; a transistor coupled to an output of the input matching network; and wherein the input matching network has a first input impedance when such input matching network is fed with an input signal having a relatively low power level and wherein the input matching network has an input impedance different from the first input impedance when such input matching network is fed with an input signal having a relatively high power level. | 2009-03-12 |
20090066440 | METHOD FOR AUTOMATIC IMPEDANCE MATCHING FOR A RADIOFREQUENCY CIRCUIT AND TRANSMISSION OR RECEPTION SYSTEM WITH AUTOMATIC MATCHING - The invention relates to a method for automatically matching the antenna impedance for a radiofrequency transmission circuit having an amplifier. An impedance matching network is inserted between the amplifier and the antenna. The output current i and voltage V from the amplifier and their phase shift are measured, and from this the complex impedance, defined by V/i, is deduced. The antenna impedance is calculated as a function of this complex impedance and as a function of the known present values of the adjustable impedances of the matching network. New values are calculated, from the calculated value of the antenna impedance, for the adjustable impedances of the matching network that allow an overall load impedance of the amplifier to be obtained which is as close as possible to the nominal load impedance Z | 2009-03-12 |
20090066441 | LOW-LOSS INTERFACE - In general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. In one exemplary embodiment, the interface comprises a pin attached to a matching network that matches the impedance of the energy produced at the circuit to the impedance required by the waveguide without the use of a dielectric material. | 2009-03-12 |
20090066442 | Base Unit And Device For The Transfer Of Electromagnetic Fields - A metamaterial is proposed which is composed of base elements having six ports with two ports, respectively. The base element further comprises four nodes connected with a central point via inductors, to which nodes the ports are connected via capacitors. | 2009-03-12 |
20090066443 | SIGNAL SELECTING DEVICE - A signal selecting device according to the present invention has two input/output ports, a plurality of resonating parts, a plurality of impedance transforming parts, and a controlling part. The resonating parts have a ring conductor having a length equal to one wavelength at a resonant frequency or an integral multiple thereof and a plurality of switches each of which is connected to a different part of the ring conductor at one end and to a ground conductor at the other end. The controlling part controls the state of the switches. The resonating parts are disposed in series between the two input/output ports. The impedance transforming parts are disposed between the input/output ports in such a manner that the impedance transforming parts at the both ends are disposed between the input/output port and the resonating part and the remaining impedance transforming parts are disposed between the resonating parts. | 2009-03-12 |
20090066444 | SIGNAL RECEIVER AND FREQUENCY DOWN CONVERTER THEREOF - A frequency down converter. A plate body of the frequency down converter includes a main surface. A first wave guide includes a first section and a second section connected to the first section. The first section is connected to the main surface and extends parallel thereto. The second section extends perpendicular to the main surface. A second wave guide includes a third section and a fourth section connected to the third section. The third section is connected to the main surface and extends parallel thereto. The fourth section extends perpendicular to the main surface. | 2009-03-12 |
20090066445 | Axial Dielectric Component Array And Method - An embodiment of the invention may be made in the form of an electromagnetic filter for use with a feed-through conductor. A dielectric component, for example a varistor or a chip capacitor, may be positioned proximate the feed-through conductor such that the dielectric component may filter a signal carried by the feed-though conductor. A first end of the dielectric component may be electrically connected to the feed-through conductor. The filter may also include a housing, a substrate, or both and a second end of the dielectric component may be electrically connected to such housing and/or substrate. The invention may also be embodied as a dielectric array, which may include one or more dielectric components arranged around the periphery of an orifice on a substrate. The orifice may be configured to allow a feed-through conductor to pass therethrough, and a first end of one or more dielectric components may be capable of being electrically connected to such feed-through conductor. | 2009-03-12 |
20090066446 | Method and apparatus for reducing silicon area of a phase lock loop (PLL) filter without a noise penalty - In a method and system for filtering an input signal with a filter included in a phase locked loop (PLL), a unidirectional feedback path is configured from an output of the filter to an input of the filter. The unidirectional feedback path includes a feedback resistor that is configured to adjust a bandwidth of the PLL. A zero path is configured from the output to a voltage reference, such as ground. The zero path includes a capacitor coupled in series with a bias resistor. The bias resistor, which along with the capacitor determines a zero frequency of the filter, is configured to reduce a value of the capacitor without a substantial increase in a phase noise of the PLL due to the unidirectional nature of the feedback. A reduction in the value of the capacitor enables a corresponding reduction in a silicon area to form the capacitor. | 2009-03-12 |
20090066447 | High speed 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. | 2009-03-12 |
20090066448 | TUNER AND TRANSFORMER FORMED BY PRINTED CIRCUIT BOARD THEREOF - A tuner and a transformer formed by printed circuit board thereof are provided. The transformer includes a first winding and a second winding. In which, the first winding forms a first inductor and the second winding forms a second inductor. The transformer is formed by the first and the second inductors, wherein the first winding and the second winding are formed by conducting wires of a printed circuit board. | 2009-03-12 |
20090066449 | Electromechanical Latching Relay and Method of Operating Same - A latching relay employing a movable cantilever with a first permanent magnet and a nearby second magnet is disclosed. The permanent magnet affixed to the cantilever is permanently magnetized along its long (horizontal) axis. The cantilever has a first end associated to the first pole (e.g., north pole) of the first magnet, and a second end associated to the second pole (e.g., south pole) of the first magnet. When the first end of the cantilever approaches the second magnet, the first pole of the first magnet induces a local opposite pole (e.g., south pole) in the second magnet and causes the first end of the cantilever to be attracted to the local opposite pole of the second magnet, closing an electrical conduction path (closed state). An open state on the first end of cantilever | 2009-03-12 |
20090066450 | ELECTROMAGNETIC RELAY, AND METHOD AND SYSTEM FOR ADJUSTING SAME - An electromagnetic relay has a solenoid formed from a wound coil, a movable contact-point block having a movable iron core, an insulation holder integrated with the upper end portion of the movable iron core and a movable contact piece which is biased toward and supported by the insulation holder through a contact pressing spring, and a fixed iron core fitted in a through hole in a yoke. A restoring spring is inserted into an axial hole of the solenoid. The movable iron core of the movable contact-point block is slidably inserted into the axial hole of the solenoid from thereabove. The fixed iron core is inserted into the axial hole from therebelow. The movable iron core is adapted to be slid into the axial hole based on the magnetization force and the demagnetization of the coil to move the movable contact-point block back and forth. | 2009-03-12 |
20090066451 | Solenoid - The invention refers to a solenoid, in particular for switching pressure controllers or pressure valves, comprising an armature movable in an armature space, and a coil which can be impinged by current, wherein this, when impinged by current, generates a magnetic field serving for moving the armature, and the armature space can be filled with oil, and wherein for deairing the armature space at least one deairing channel is provided. | 2009-03-12 |
20090066452 | Magnetic levitation cushion and magnetic levitation for the same - A magnetic levitation cushion has multiple magnetic levitation devices, at least one assembling device and at least one supporting pad. The assembling device holds all the magnetic levitation devices as a group. Each magnetic levitation device has a housing, a fixed magnet assembly mounted securely in the housing, a movable magnet assembly being mounted slidably in the housing, movable relative to the fixed magnet assembly and a shaft with a bottom end connected to movable magnet. The supporting pad is mounted on a top end of each shaft. The magnetic levitation cushion is used as a cushion for upholstered furniture such as chairs, beds and sofas. | 2009-03-12 |
20090066453 | CHOKE OF ELECTRIC DEVICE - The present invention relates to a choke ( | 2009-03-12 |
20090066454 | HIGH POWERED INDUCTORS USING A MAGNETIC BASIS - A biased gap inductor includes a first ferromagnetic plate, a second ferromagnetic plate, a conductor sandwiched between the first ferromagnetic plate and the second ferromagnetic plate, and an adhesive between the first ferromagnetic plate and the second ferromagnetic plate, the adhesive comprising magnet powder to thereby form at least one magnetic gap. A method of forming an inductor includes providing a first ferromagnetic plate and a second ferromagnetic plate and a conductor, placing the conductor between the first ferromagnetic plate and the second ferromagnetic plate, adhering the first ferromagnetic plate to the second ferromagnetic plate with a composition comprising an adhesive and a magnet powder to form magnetic gaps, and magnetizing the inductor. | 2009-03-12 |
20090066455 | Winding structure of a transformer - An improved winding structure of a transformer, wherein the transformer comprises a winding base externally set with an isolating plate, the transformer is divided into a primary side region and a secondary side region by the isolating plate. The primary side region has a winding reel for a pre-formed wire set to sleeve on while the secondary side region is divided into a plurality of winding grooves by a plurality of partitions for placing a wire in the grooves, and an iron core set is set on the outside of the winding base and the hollow structure, which altogether form an transformer. In the present invention, an pre-formed wire set is sleeved on a primary side winding reel, therefore, the costs of traditional hand-winding will be displaced, and the manufacturing quality and usage stability of transformers will be effectively improved as well. | 2009-03-12 |
20090066456 | Winding structure of a transformer - An improved winding structure of a transformer, wherein the transformer comprises a winding base externally set with an isolating plate, the transformer is divided into a primary side region and a secondary side region by the isolating plate. The primary side region has a winding reel for a pre-formed wire set to sleeve on while the secondary side region is divided into a plurality of winding grooves by a plurality of partitions for placing a wire in the grooves, and an iron core set is set on the outside of the winding base and the hollow structure, which altogether form an transformer. In the present invention, an pre-formed wire set is sleeved on a primary side winding reel, therefore, the costs of traditional hand-winding will be displaced, and the manufacturing quality and usage stability of transformers will be effectively improved as well. | 2009-03-12 |
20090066457 | ELECTRONIC DEVICE HAVING TRANSFORMER - An electronic device includes a first inductor which is symmetrical with respect to a first line in plan view and a second inductor having the same shape as that of the first inductor. The first inductor and the second inductor are disposed so as to be symmetrical with each other with respect to a second line which is orthogonal to the first line. The first inductor and the second inductor are disposed so as to intersect on the second line in plan view. | 2009-03-12 |
20090066458 | Winding structure of a transformer - An improved winding structure of a transformer, wherein the transformer comprises a winding base externally set with an isolating plate, the transformer is divided into a primary side region and a secondary side region by the isolating plate. The primary side region has a winding reel for a pre-formed wire set to sleeve on while the secondary side region is divided into a plurality of winding grooves by a plurality of partitions for placing a wire in the grooves, and an iron core set is set on the outside of the winding base and the hollow structure, which altogether form an transformer. In the present invention, an pre-formed wire set is sleeved on a primary side winding reel, therefore, the costs of traditional hand-winding will be displaced, and the manufacturing quality and usage stability of transformers will be effectively improved as well. | 2009-03-12 |
20090066459 | Transformer Structure - A transformer structure is provided. The transformer structure comprises at least one first winding frame, at least one second winding frame, a plurality of primary coil assemblies which are wound around the at least one first winding frame, a plurality of secondary coil assemblies which are wound around the at least one secondary winding frame, and an iron core assembly which is placed in the jacks of the at least one first winding frame and the at least one second winding frame. The at least one first winding frame has a plurality of primary coil areas, around which the primary coil assemblies are wound. The at least one second winding frame has a plurality of secondary coil areas, around which the secondary coil assemblies are wound. | 2009-03-12 |
20090066460 | Winding structure of a transformer - An improved winding structure of a transformer, wherein the transformer comprises a winding base externally set with an isolating plate, the transformer is divided into a primary side region and a secondary side region by the isolating plate. The primary side region has a winding reel for a pre-formed wire set to sleeve on while the secondary side region is divided into a plurality of winding grooves by a plurality of partitions for placing a wire in the grooves, and an iron core set is set on the outside of the winding base and the hollow structure, which altogether form an transformer. In the present invention, an pre-formed wire set is sleeved on a primary side winding reel, therefore, the costs of traditional hand-winding will be displaced, and the manufacturing quality and usage stability of transformers will be effectively improved as well. | 2009-03-12 |
20090066461 | PLANAR INDUCTIVE STRUCTURE - A spiral structure having at least one planar winding in at least one first conductive level to form at least one inductive element, wherein the winding is surrounded with a conductive plane and at least one track is formed in a second conductive level and has two ends connected by conductive vias to the plane of the first level, at diametrically opposite positions with respect to the center of the winding. | 2009-03-12 |
20090066462 | COMMON MODE CHOKE COIL AND MANUFACTURING METHOD THEREOF - A common mode choke coil includes two extraction conductors formed on a resin insulating layer, and a concave portion is formed in the resin insulating layer in an area between a first portion covered with one of the extraction conductors and a second portion covered with the other extraction conductor. An upper resin insulating layer is embedded inside the concave portion. Accordingly, because the resin insulating layer is not flat in the portion where the extraction conductors are formed, a distance between the extraction conductors along the surface of the resin insulating layer increases. Therefore, a current path generated due to ion migration along the surface of the insulating layer is hardly formed, thereby enabling to obtain high withstand voltage, even if the distance between the extraction conductors is short. | 2009-03-12 |
20090066463 | METHOD TO PRODUCE A CURVED COIL, IN PARTICULAR A SUB-COIL OF A GRADIENT COIL FOR A MAGNETIC RESONANCE APPARATUS - In a method to produce a curved coil, in particular a sub-coil of a gradient coil for a magnetic resonance apparatus, at least one conductor is wound corresponding to a predetermined pattern on a winding plate, and a winding plate composed of multiple plate elements that are moveable relative to one another is used that is formed into a curved shape after the winding of the conductor, in which curved shape the conductor is fixed while maintaining the curved shape. | 2009-03-12 |
20090066464 | IGNITION APPARATUS HAVING BONDED STEEL WIRE CENTRAL CORE - An ignition apparatus includes a transformer having a central core, a primary winding disposed thereabout, a secondary winding disposed outwardly of the primary winding, a case configured to house the central components, and an outer core or shield disposed outwardly of the secondary winding. The central core is formed from multiple, low carbon steel wires held together is a cylindrical shape with cured bond coating material such as an epoxy material or an aromatic polyamide material. In one configuration, at least two different sizes of wires are used in forming the core to increase the density of the magnetically-permeable wire material in the core. | 2009-03-12 |
20090066465 | MAGNETIC CORE FOR TESTING MAGNETIC SENSORS - A magnetic core for testing a magnetic sensor includes a base portion, and first, second, and third legs extending from the base portion. At least one coil generates magnetic flux through the magnetic core and into the magnetic sensor. The base portion and the first, second, and third legs are formed as a single piece without bonding joints therebetween. | 2009-03-12 |
20090066466 | Coil System Comprising Eccentrically Coiled Magnetic Substance - The present invention provides a coil system comprising an eccentrically coiled magnetic substance capable of exciting vertical magnetic field components in its center portion and preventing sensitivity of the coil system deteriorating in its center. In the coil system comprising a magnetic substance | 2009-03-12 |
20090066467 | Micromagnetic Device and Method of Forming the Same - A micromagnetic device including a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy. The magnetic alloy includes iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy. | 2009-03-12 |
20090066468 | Power Converter Employing a Micromagnetic Device - A power converter including a power train, a controller and a driver. The power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device interposed between the switch and the output of the power converter. The micromagnetic device includes a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy including iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy. The controller provides a signal to control the duty cycle of the switch. The driver provides a drive signal to the switch as a function of the signal from the controller. | 2009-03-12 |
20090066469 | BATTERY FUSE ASSEMBLY - A fuse includes a fusible element and a body member encased within a heat-resistant housing. The fusible element is configured to open an electrical circuit coupled to a storage battery in response to an over-current in the electrical circuit. The housing is configured to contain an arc generated by the fusible element in response to the over-current and to shield the arc and the fusible element from ambient particles. Thus, the fuse is ignition protected. The body member includes an insulating material configured to interrupt the arc. The housing includes an opening configured to receive a terminal of the storage battery or a terminal of a mounting plate. An insulating material disposed about a first end of the mounting plate terminal is configured to electrically isolate the fuse and a power supply cable in the electrical circuit from the mounting plate terminal. | 2009-03-12 |
20090066470 | Slow Blow Fuse and Electric Junction Box - A fuse element comprises a pair of female terminal portions into which the other pair of terminals are plugged and which are disposed in parallel and a blowout portion for coupling the pair of female terminal portions in a direction perpendicular to the direction in which the other pair of terminals are plugged. A slow blow fuse comprising the fuse element houses the fuse element in an insulating-resin housing and is provided with an insertion port in which the other pair of terminals are plugged into the pair of female terminal portions in the opposed surface of the housing. | 2009-03-12 |
20090066471 | Fuse arrangement - The invention relates to a fuse system for a switchgear assembly, especially for a medium voltage switchgear assembly. The fuse system comprises a plurality of fuses which correspond to the number of phases, every fuse having a tripping bar that projects from the face of the fuse under the effect of the force of a spring when the fuse comes into action. A sealing body, with a spring arrangement interposed, pushes a sealing head into the interior of a receptacle receiving the fuse. A two-armed lever is received on the sealing head, one arm covering a tripping mechanism which actuates a power switch. | 2009-03-12 |
20090066472 | GAS SENSOR, AIR-FUEL RATIO CONTROLLER, AND TRANSPORTATION APPARATUS - A resistance-type gas sensor includes a gas detection section including an oxide semiconductor layer. The oxide semiconductor layer includes cerium ions and zirconium ions. An amount of substance of zirconium ions relative to a sum of amounts of substance of cerium ions and zirconium ions contained in the oxide semiconductor layer is no less than about 45% and no more than about 60%, and the oxide semiconductor layer has a crystal phase containing about 80 vol % or more of cubic crystals. | 2009-03-12 |
20090066473 | COMMISSIONING WIRELESS NETWORK DEVICES ACCORDING TO AN INSTALLATION PLAN - A method for commissioning installed building service devices comprises establishing wireless communication between plural building service devices L | 2009-03-12 |
20090066474 | VEHICLE INPUT DEVICE - A vehicle input device includes an operating part arranged within a passenger compartment and a signal processing part that processes signals input through the operating part. The device includes a movable support mechanism that supports the operating part to move between a distant position away from an operator and a nearby position close to the operator, a motor for generating a drive force to displace the operating part, a control part for controlling the motor, and an operation intention detector for detecting an operator's intention to operate the operating part. The control part controls the motor to displace the operating part into the nearby position if the operator's operation intention is detected by the operation intention detector. | 2009-03-12 |
20090066475 | RADIOGRAPHIC APPARATUS AND CONTROL METHOD THEREFOR - If image data is input to an image processor (step S | 2009-03-12 |
20090066476 | Method of self-service access control for frequent guests of a housing facility - An improved electronic lock with keyless, card-less digital key system is provided for use in residential and commercial buildings. The invention describes a novel method of self-service remote assignment and access authorization to the facility for a specified period of time, and consequent contact-less operation of door locks by means of a mobile device. The method requires no interaction with the facility's front desk or reception or management for checking in, checking out, payments, or access key pick up or drop off. | 2009-03-12 |
20090066477 | AUTHENTICATION APPARATUS - The authentication apparatus disclosed here is formed of a unit to be controlled and a plurality of portable devices having communication with the unit via radio waves. The unit has a first controller, a first transmitter controlled by the first controller and a first receiver. Each of the portable devices has a second controller, a storage section that stores the replying order of the portable devices and is controlled by the second controller, a second transmitter and a second receiver. In response to communication signals sent from the first transmitter of the unit to each of the second receivers, each portable device replies with a first communication signal according to the replying order stored in the storage section. The first communication signal is sent back to the unit from each device with a predetermined time difference so as not to produce an overlapped period in the replying time. | 2009-03-12 |
20090066478 | Biometrically secured identification authentication and card reader device - An intelligent Caddy-Pilot for facilitating biometric verification. The device works as a single sign-on device for an internal VPN or network or in conjunction with a central data network and may act as a card reader for various Safe Card and traditional credit cards to perform secure transactions and other objective functions, or as an; instantaneous standalone biometric authentication and identification device. The Caddy-Pilot generally comprises a Credit Card-sized housing defining an end-wise card insertion port, a USB connection port, a magnetic card strip reader head, an internal infrared receiver/transmitter, a fingerprint scanner, LCD display screen, LED indicator lights, and a programmable microprocessor and memory. At issuance, an initial scan of the user's fingerprint is completed and a portion of the digitized fingerprints scan is stored locally on Caddy Pilot along with an image of the user for later authentication. The user may then employ the Caddy-Pilot by connection to any available USB port on a web enabled device to initiate both a local biometric-secure authentication sequence as well as a network biometric authentication single sign-on sequence to fully authenticate the user. Once authenticated the user is permitted access to requested resource or data. | 2009-03-12 |
20090066479 | Electronic Device Capable of Identifying External Antennas and Related External Antenna Module - An electronic device with external antenna identification function includes a plurality of external antenna modules, each of which includes an antenna and an identification tag unit for generating a specific identification signal to identify the external antenna module according to a query signal, a connection port, a identification tag authorizing module, coupled to the connection port, for outputting the query signal when one of the plurality of external antenna modules is connected to the connection port and for generating a identification result according to the specific identification signal generated by the external antenna module, and a radio transceiver module, coupled to the connection port and the identification tag authorizing module, for transmitting and receiving corresponding radio signals according to the identification result. | 2009-03-12 |
20090066480 | RFID READER AND RF TRANSMISSION METHOD THEREOF - A Radio Frequency (RF) transmission method of a Radio Frequency Identification (RFID) reader using a plurality of channels is provided. The method includes: selecting at least part of the plurality of channels, measuring an RF power of each of the selected channels, determining a transmission environment of the RF according to a measurement determination, and modulating an RF signal according to the determined transmission environment. | 2009-03-12 |
20090066481 | METHOD AND APPARATUS FOR IMPROVING THE EFFICIENCY AND ACCURACY OF RFID SYSTEMS - The present invention relates to a method and apparatus for transmitting a narrow signal beam that allows the precise location of RFID tags to be determined and reduces tag collisions. The present invention further relates to a method and apparatus for combing an RFID reader with an optical source to visualize the interrogation zone of the reader. The present invention also relates to a method and apparatus for improving the efficiency of RFID systems. | 2009-03-12 |
20090066482 | RADIO FREQUENCY IDENTIFICATION SYSTEM CAPABLE OF REDUCING POWER CONSUMPTION AND METHOD FOR OPERATING THE SAME - An RFID system and a method for operating the same, in which the RFID system includes an RFID tag and an RFID reader. The RFID reader communicates with the RFID tag through a tag communication signal. The RFID reader transmits a tag sensing signal having a lower level power than the tag communication signal, senses the RFID tag entering a magnetic field created by the transmitted tag sensing signal on the basis of a current change due to a change in the magnetic field, and communicates with the sensed RFID tag. | 2009-03-12 |
20090066483 | PASSIVE CONTACTLESS INTEGRATED CIRCUIT COMPRISING A FLAG FOR MONITORING AN ERASE/PROGRAMMING VOLTAGE - A passive contactless integrated circuit includes an electrically programmable non-volatile data memory (MEM), a charge accumulation booster circuit for supplying a high voltage necessary for writing data in the memory. The integrated circuit includes a volatile memory point for memorizing an indicator flag, and circuitry for modifying the value of the indicator flag when the high voltage reaches a critical threshold for the first time after activating the booster circuit. | 2009-03-12 |
20090066484 | RF tag R/W (reader/writer) control method and control apparatus - A failure of execution of an R/W control command with respect to plural RF tags that are attached to a moving thing occurs. There are disclosed a method and apparatus for controlling an R/W (reader/writer) that performs a read/write operation on RF tags attached to a moving body. In this case, the RF tags that are attached to the moving body are detected using the R/W. A schedule that determines execution timing of a control command of the R/W that performs a data read/write operation on the RF tags in accordance with the detected RF tags is created. The R/W control command is executed with respect to the RF tags using the R/W in accordance with timing that is determined in the created schedule. | 2009-03-12 |
20090066485 | Method for monitoring the load condition of an engine and corresponding device - There is described a method for monitoring the load condition of a variable speed engine. Said method shows a determination of an actual speed and an actual load moment during operation. A warning signal is emitted when the actual load moment remains outside a monitoring range, predetermined depending on the speed, for the duration of a predetermined delayed reaction time. | 2009-03-12 |
20090066486 | MODULAR SIGNAL DEVICE FOR A ROOM OCCUPANCY MANAGEMENT SYSTEM AND A METHOD FOR USING SAME - A method and a system for using a modular signal device for a room occupancy management system are disclosed here. The method includes the steps of determining the occupancy status of a room associated with the device and generating a signal in the device in response to the determination of the status of the room. The device may be a light bar displaying different color patterns in response to the occupancy status of the room. A room occupancy management system is also disclosed. The system includes a signal device for generating a signal displaying the occupancy status of an associated room and a control unit for controlling the device. | 2009-03-12 |