07th week of 2009 patent applcation highlights part 19 |
Patent application number | Title | Published |
20090039846 | SEMICONDUCTOR INTEGRATED CIRCUIT - In order to set with a high precision the value of rush current flowing in the power switch circuit at the time of turning “on” the power, the internal circuit Int_Cir of the LSI is supplied with the internal source voltage Vint from the output transistor MP | 2009-02-12 |
20090039847 | Output impedance compensation for linear voltage regulators - In a method and system for regulating an output voltage, a linear voltage regulator (LVR) includes an adjustable shunt regulator (ASR) having a limited gain, a feedback circuit (FC), and a compensation resistor (CR). The limited gain causes the output voltage of the ASR to change in response to a change in an input current of the ASR. The FC generates a feedback voltage reference in proportion to the output voltage, the feedback voltage reference being provided to the ASR to control the output voltage. The CR is coupled to the ASR and the FC. The input current flows through the CR to provide a compensating voltage across the CR. The compensating voltage is provided to the feedback circuit to compensate the limited gain, thereby providing the output voltage that is substantially independent of the input current. | 2009-02-12 |
20090039848 | SYSTEMS AND METHODS FOR ON-CHIP POWER MANAGEMENT - A power measurement system is disclosed for use on an integrated circuit for measuring the power used by the integrated circuit. The power measurement system includes a low-dropout voltage regulator and a signal input unit. The low-dropout voltage regulator includes a power transistor that couples a supply voltage to a circuit to be powered by the supply voltage, and the low-dropout voltage regulator provides an internal adjustment signal (V | 2009-02-12 |
20090039849 | ULTRA LOW DROPOUT VOLTAGE REGULATOR - An ultra low dropout voltage regulator, which separately supplies operating power for internal circuits, but controls the operating power to perform the operation of a voltage regulator chip, so that an ultra low dropout voltage regulator can be designed to reduce standby power consumption and to minimize the size of the chip, can be designed to more rapidly respond to the overload or overvoltage of the chip and to stably and precisely shut down the chip in the event of the overload or overvoltage, and can be designed to realize ultra low dropout characteristics even at a low output voltage. | 2009-02-12 |
20090039850 | CONTROL DEVICE OF A SWITCHING CONVERTER AND RELATIVE SWITCHING CONVERTER - A control device for a switching converter having an input terminal and an output terminal, a half-bridge of a first and a second transistor coupled between the input terminal and a reference voltage the control device including a first circuit structured to detect signal on the output terminal of the converter and to integrate the detected signal and regulate on the average value of the detected signal by comparison with a further reference signal, and then drive the first and second transistor as a function of the regulation. The control device further includes a switching circuit for turning off the first circuit so that the control device carries out a regulation on the detected signal by comparison with a further reference signal and drives the first and second transistors when current passing between the output terminal of the converter and the half-bridge crosses zero. | 2009-02-12 |
20090039851 | Switching Control Circuit - A switching control circuit comprises: an error amplifying circuit configured to output an error voltage obtained by amplifying an error between a feedback voltage corresponding to an output voltage and a lower voltage selected out of a first reference voltage increasing with time passage and a second reference voltage used as a reference for a target level; a comparison circuit configured to output a comparison signal obtained by comparing the feedback voltage with the error voltage output from the error amplifying circuit; and a drive circuit configured to output first and second control signals for controlling first and second transistors, respectively, in order to turn the output voltage to the target level by complementarily turning on and off the first and second transistors, after the error voltage exceeds the feedback voltage, based on the comparison signal output from the comparison circuit. | 2009-02-12 |
20090039852 | DIGITAL AVERAGE INPUT CURRENT CONTROL IN POWER CONVERTER - A digital average-input current-mode control loop for a DC/DC power converter. The power converter may be, for example, a buck converter, boost converter, or cascaded buck-boost converter. The purpose of the proposed control loop is to set the average converter input current to the requested current. Controlling the average input current can be relevant for various applications such as power factor correction (PFC), photovoltaic converters, and more. The method is based on predicting the inductor current based on measuring the input voltage, the output voltage, and the inductor current. A fast cycle-by-cycle control loop may be implemented. The conversion method is described for three different modes. For each mode a different control loop is used to control the average input current, and the control loop for each of the different modes is described. Finally, the algorithm for switching between the modes is disclosed. | 2009-02-12 |
20090039853 | POWER SUPPLY DEVICE AND ELECTRONIC APPLIANCE PROVIDED THEREWITH - A power supply device has an error amplifier producing an error voltage by amplifying a difference between a feedback voltage according to an output voltage and a predetermined reference voltage, an output portion producing a desired output voltage from an input voltage in such a way that the error voltage is reduced, and a clamping portion setting, during a predetermined period after startup of the power supply device, an upper limit of the error voltage to a value that is lower than a value obtained at normal times, such that the lower the input voltage the higher the upper limit, the higher the input voltage the lower the upper limit. | 2009-02-12 |
20090039854 | LOAD CONTROL DEVICE HAVING A GATE CURRENT SENSING CIRCUIT - A gate drive circuit for a controllably conductive device, such as a triac, includes a trigger circuit for conducting a gate current through a control input of the controllably conductive device, and a sense circuit operable to generate a control signal representative of the magnitude of the gate current. The controllably conductive device is adapted to be coupled in series between an AC power source and an electrical load for controlling the amount of power delivered to the electrical load. The controllably conductive device is operable to change from a non-conductive state to a conductive state in response to the gate current being conducted through the control input. A controller is operable to control the controllably conductive device via the gate drive circuit and to determine, in response to the magnitude of the gate current through the control input of the controllably conductive device, whether the controllably conductive device is presently conducting current to the load. | 2009-02-12 |
20090039855 | Scientific method to accurately regulate point of load power distribution using remote sense connection point switchover - A power regulation system for providing a regulated voltage to a load is provided. The system includes an energy source or a power source and a switching device. The switching device switches a sensing voltage input of the energy source between a voltage input of a power-line controller and a voltage input of the load based on a status input. A method for providing a regulated voltage to a load is also described. | 2009-02-12 |
20090039856 | Stability enhancement apparatus and method for a self-clocking PWM buck converter - A DCR detecting circuit is parallel connected to the inductor of a self-clocking PWM buck converter which performs a trigger control of a PWM signal by an output feedback, to detect the current signal on the inductor to provide a large enough ripple to be combined into the output feedback, so as to enhance the system stability, while remains the small output ripple, without additional power loss. | 2009-02-12 |
20090039857 | DRIVER WITH CONTROL INTERFACE FACILITATING USE OF THE DRIVER WITH VARIED DC-TO-DC CONVERTER CIRCUITS - A driver for a DC-to-DC converter that may utilize a flyback or buck-boost converter circuit. The driver includes a driver circuit and an interface circuit. The interface circuit has a sensor sensing an input voltage from a DC supply and generating a sensor signal to a driver selector. The driver selector compares the sensor signal to a comparison voltage to determine the type of converter circuit and then transmits a selector signal to a driver circuit where it is used to control one or more of the components of the driver circuit, such as the logic circuit which is used for driving the converter to regulate the converter output. The sensor includes a sense resistor along with a current-sense amplifier, which is adapted for connection to a high side or a low side of a power supply while still producing a substantially equivalent output voltage or sensor signal. | 2009-02-12 |
20090039858 | DIRECT CURRENT POWER SUPPLY DEVICE - A direct-current power supply apparatus outputs a predetermined output voltage by lowering an input voltage. The apparatus includes a control element to which the input voltage is inputted, a first resistive element, provided in series with the control element, which outputs the output voltage, and second and third resistive elements, connected in series with each other, which are provided in parallel with the first resistive element. A voltage at a midpoint between the second resistive element and the third resistive element is fed back so as to control the control element. | 2009-02-12 |
20090039859 | INTEGRATED CIRCUIT AND ELECTRONIC APPARATUS - An integrated circuit includes a trigger signal generating unit configured to generate a trigger signal for setting a control unit connected thereto in a reset state, an input unit configured to input a DC voltage of a predetermined voltage value, a pulse signal generating unit configured to generate and output a pulse signal with the predetermined voltage value to a power supply unit configured to generate a voltage to be supplied to the control unit with a coil and a capacitor, a detecting unit configured to detect generation of an event which requires an output of the trigger signal, a stopping unit configured to stop outputting of the pulse signal based on a detection result from the detecting unit, and an output unit configured to output the trigger signal generated by the trigger signal generating unit after outputting of the pulse signal is stopped and a predetermined condition is satisfied. | 2009-02-12 |
20090039860 | LED DRIVE CIRCUIT - An LED driving circuit can improve characteristics. A first current increasing circuit | 2009-02-12 |
20090039861 | REFERENCE VOLTAGE GENERATOR PROVIDING A TEMPERATURE-COMPENSATED OUTPUT VOLTAGE - The present invention concerns a reference voltage generator ( | 2009-02-12 |
20090039862 | Voltage transformation circuit - A voltage transformation circuit comprising a first input, a second input, a first output, first and second impedances and a current mirror having master and slave terminals, wherein the first impedance is connected between the first input and the master terminal of the current mirror, the second impedance is connected between the second input and the slave terminal of the current mirror, and the first output is connected to the slave terminal of the current mirror. | 2009-02-12 |
20090039863 | Isolating An Inactive Cable Pair From A Bridged Active Cable Pair - Apparatus and methods provide for the isolation of an inactive cable pair from a bridged active cable pair. According to various embodiments, a bridge lifting block is installed in-line between control equipment and a cable connected to the bridged cable pairs. The bridge lifting block includes a first set of post pairs for connection to the control equipment and a second set of post pairs for connection to the cable block. Mini-bridge lifters are installed in the bridge lifting block between the sets of post pairs. The bridge lifting block may include two cable blocks linked together, with mini-bridge lifters installed in one and corresponding pass-through coils installed in the other. Alternatively, the bridge lifting block may include a single block body having two opposing sets of post pairs with intervening mini-bridge lifters. Additional control equipment may be installed between the bridge lifting block and cable block. | 2009-02-12 |
20090039864 | WIRELESS CORROSION SENSOR - A wireless corrosion detector includes a surface acoustic wave (SAW) sensor tag. The SAW sensor tag has an output port. At least one electro-resistive (ER) corrosion sensor is coupled to the output port. | 2009-02-12 |
20090039865 | Printed circuit board for sensing voltage drop - A printed circuit board (PCB) having capabilities to measure a voltage drop of current flowing therethrough. The PCB optionally include other capabilities of measuring, calculating, sensing, or other processing other information and data associated with the current flow or other operating conditions associated with the PCB, such as but not limited to those associated with battery monitoring systems. | 2009-02-12 |
20090039866 | Fiber-Optic Current Sensor With Polarimetric Detection Scheme - The current in a conductor is measured by exploiting the Faraday effect in a sensing fiber. The light returning from the sensing fiber is split into at least two parts, at least one of which is analyzed by a first circular analyzer for generating a first signal. A second part may e.g. be analyzed by a second circular analyzer, and a third part may be analyzed by a linear analyzer. By combining the signals obtained in this way, the current induced phase delay in the returning light can be measured efficiently and accurately. | 2009-02-12 |
20090039867 | Circuit Device and Method of Measuring Clock Jitter - In an embodiment, a method is disclosed that includes receiving a clock signal at a delay chain of a circuit device and determining a value of the clock signal at a selected point within the delay chain. The method also includes adjusting the selected point when the value does not indicate detection of an edge of the clock signal. | 2009-02-12 |
20090039868 | CURRENT SENSOR - There is provided a current sensor for monitoring electrical disturbances on an electrical circuit having an electrical conductor. The current sensor comprises a magnetic flux sensor for sensing a magnetic flux generated by a current flowing in the electrical conductor and for providing a signal representative of the current; and a processor for acquiring the signal from the magnetic flux sensor, for detecting an electrical disturbance on the current and for providing electrical disturbance data. The current sensor may also comprise a ring-shaped magnetic structure for receiving the electrical conductor and an opening within the ring-shaped magnetic structure for receiving the magnetic flux sensor. The magnetic flux sensor being for sensing a magnetic flux generated in the magnetic structure by the current in the electrical conductor. | 2009-02-12 |
20090039869 | Cascode Current Sensor For Discrete Power Semiconductor Devices - A cascode current sensor includes a main MOSFET and a sense MOSFET. The drain terminal of the main MOSFET is connected to a power device whose current is to be monitored, and the source and gate terminals of the main MOSFET are connected to the source and gate terminals, respectively, of the sense MOSFET. The drain voltages of the main and sense MOSFETs are equalized, in one embodiment by using a variable current source and negative feedback. The gate width of the main MOSFET is typically larger than the gate width of the sense MOSFET. Using the size ratio of the gate widths, the current in the main MOSFET is measured by sensing the magnitude of the current in the sense MOSFET. Inserting the relatively large MOSFET in the power circuit minimizes power loss. | 2009-02-12 |
20090039870 | ELECTRICAL MEASURING INSTRUMENT HAVING DETACHABLE CURRENT CLAMP - A current clamp meter having a current meter body and a detachable current clamp. The current meter body and the current clamp are configured so that the current clamp is detachable from the current meter body and the meter is operable with the current clamp either attached to the current meter body or detached from the current meter body. | 2009-02-12 |
20090039871 | PROCEDURE FOR LOCATION OF MOBILE MAGNETIC TARGETS - A procedure for locating a mobile magnetic target ( | 2009-02-12 |
20090039872 | ROTARY ENCODER AND METHOD FOR OPERATION OF A ROTARY ENCODER - A rotary encoder includes two component groups arranged in a manner allowing rotation relative to each other about an axis, the first component group having a triggering sensor and a plurality of magnetic sensors. The second component group includes a first magnet, a second magnet, and a third magnet. The component groups are configured such that, in response to a full revolution, the magnetic field of the first magnet and of the third magnet are detectable by the magnetic sensors. A trigger signal is able to be generated by the triggering sensor due to the second magnet and the third magnet, while the first magnet does not bring about a triggering of a trigger signal by the trigger sensor. | 2009-02-12 |
20090039873 | Inductive presence or position sensor - An inductive sensor or detector includes as its sensitive element, preferably defining a front working plane of the sensor, a coil system forming an air-core transformer arrangement with a primary coil or winding ( | 2009-02-12 |
20090039874 | INDUCTIVE POSITION SENSOR - A system to measure the displacement of relatively moveable bodies along an axis comprising: a resonant electrical intermediate device further comprising an inductor, whose width varies along the displacement axis, and a capacitor in electrical series which cooperates with an antenna comprising transmit and receive windings whose mutual inductance varies according to the position of the electrical intermediate device relative to the antenna. | 2009-02-12 |
20090039875 | Position Detector and Positioning Device - A position detector ( | 2009-02-12 |
20090039876 | Apparatus Detecting Relative Body Movement - The invention relates to a measuring device for detecting a body moving in relation to an, in particular, tubular container. Said device comprises at least one magnet unit which generates a magnetic field, measures this magnetic field and which is assigned to the container and/or to the magnetic body. The device also comprises at least one evaluation device connected to the magnet units and provided for receiving measurement signals of the magnet units. The aim of the invention is to improve a measuring device of this type in order to be able to easily determine, in addition to the position of the body in relation to the container in a longitudinal direction, the position of the body in relation to the container in the transverse direction with a relatively high level of accuracy. To this end, the magnet units comprise a maximum magnetic flux that is essentially perpendicular to the direction of the relative motion of the body and container. | 2009-02-12 |
20090039877 | EDDY CURRENT SYSTEM AND METHOD FOR ESTIMATING MATERIAL PROPERTIES OF PARTS - A method of inspecting a test part is provided. The method includes positioning an eddy current probe on a surface of the test part and scanning the test part using the eddy current probe to generate a first signal corresponding to a no lift-off condition of the test part. The method further includes positioning the eddy current probe at a pre-determined distance from the surface of the test part and scanning the test part using the eddy current probe positioned at the pre-determined distance from the test part to generate a second signal corresponding to a lift-off condition of the test part. The method also includes processing the first and second signals to estimate an electrical conductivity of the test part. | 2009-02-12 |
20090039878 | TRANSPARENT CONDUCTIVE FILM ROLL AND PRODUCTION METHOD THEREOF, TOUCH PANEL USING THE SAME, AND NON-CONTACT SURFACE RESISTANCE MEASURING DEVICE - A transparent conductive film roll which has a transparent conductive layer on at least one surface thereof and has an excellent distribution uniformity of surface resistance in longitudinal and lateral directions thereof wherein the distribution uniformity D of surface resistance defined by the following expression (1) is 0.2 or less when the surface resistance of the transparent conductive layer is measured at a total of 33 points within the film roll, and therefore, is suitable especially for a large panel, | 2009-02-12 |
20090039879 | LOW NOISE MAGNETIC FIELD SENSOR USING A LATERAL SPIN TRANSFER - The present invention relates to a magnetoresistive sensor comprising a first pinned-magnetization magnetic layer ( | 2009-02-12 |
20090039880 | Electric current detector having detector element holder coupled to magnetic core casing - An electric current detector according to the present invention detects an amount of current flowing through a conductor inserted into a through-hole of the current detector. The current detector includes a magnetic core casing in which a ring-shaped magnetic core having an air gap is molded and a detector element holder made by resin on which a detector element such as a Hall element is mounted. The detector element holder is coupled to the magnetic core casing so that the detector element is correctly positioned in the air gap of the ring-shaped magnetic core. Since the detector element is exposed to the air gap without being molded by resin, the detection accuracy is not affected by temperature changes in the course of usage. The detector element holder is simply coupled to the magnetic core casing without using complex connecting members. Accordingly, the electric current detector is manufactured at a low cost. | 2009-02-12 |
20090039881 | COMPACT ATOMIC MAGNETOMETER AND GYROSCOPE BASED ON A DIVERGING LASER BEAM - An atomic magnetometer that simultaneously achieves high sensitivity, simple fabrication and small size. This design is based on a diverging (or converging) beam of light that passes through an alkali atom vapor cell and that contains a distribution of beam propagation vectors. The existence of more than one propagation direction permits longitudinal optical pumping of atomic system and simultaneous detection of the transverse atomic polarization. The design could be implemented with a micro machined alkali vapor cell and light from a single semiconductor laser. A small modification to the cell contents and excitation geometry allows for use as a gyroscope. | 2009-02-12 |
20090039882 | METHOD AND SYSTEM OF MR IMAGING WITH REDUCED FSE CUSP ARTIFACTS - Coil sensitivity of a receive coil to a gradient null location is measured and, from the measurements, a coil calibration value is determined and used to modify the MR data acquired with that receive coil to reduce the adverse effects of gradient nulling on MR images. Coil sensitivity values are determined for each coil of a coil array and the data for each coil is respectively weighted. An image that is substantially free of gradient null artifacts or ghosting is then reconstructed from the weighted data. | 2009-02-12 |
20090039883 | Singlet-state exchange NMR spectroscopy for the study of very slow dynamic proceses - A nuclear magnetic resonance (NMR) method for singlet-state exchange NMR-spectroscopy comprises steps of excitation of single-quantum in-phase coherences, generation of single-quantum anti-phase coherences, excitation of zero-quantum coherences ZQ | 2009-02-12 |
20090039884 | CONTINUOUS WAVE NUCLEAR QUADRUPOLE RESONANCE SPECTROMETER - Apparatus and methods for locating a nuclear quadrupole resonance are described. In an example method, a search frequency is adjusted using a blind search until a resonance absorption of an analyte is detected, and then an extremum seeking search to be used to locate an extremum frequency. | 2009-02-12 |
20090039885 | METHOD AND APPARATUS FOR ACQUISITION OF MAGNETIC RESONANCE DATA - In a magnetic resonance method and apparatus for acquisition of measurement data from a subject, k-space to be scanned into an inner region and an outer region, and the inner region is divided into inner segments that differ in terms of their distance from a k-space center and the outer region is divided into outer segments that differ in terms of their distance from a k-space center. First k-space data are acquired for the inner region, wherein k-space lines of the inner region are divided into first groups such that k-space lines from different inner segments are associated in each of the first groups, and the first groups are successively scanned. Second k-space data are acquired for the outer region, wherein k-space lines of the outer region are divided into second groups such that k-space lines from different outer segments are associated in each of the second groups, and the second groups are successively scanned. | 2009-02-12 |
20090039886 | Apparatus and method for tracking movement of a target - The present invention discloses an apparatus and method to track the movement of a target. One embodiment tracks the movement of the patient during medical imaging scanning using optical technology. Optical systems record the position and movement of the target and provide inputs to a processor. The processor is capable of performing mathematical analysis of the movement of the target to determine the positional shift of the patient. Weighted averages, phase correlation, Fourier-Mellin algorithms, and cross-correlation of data related to X-Y translation are used to calculate movement of the target subject. Feedback related to the movement is provided to the medical imaging scanning machine which allows for adjustments in focusing coils for real time tracking of the patient's movements during the procedure. As a result, the medical image scanning procedure becomes more accurate as it is adjusted for the patient's movements. | 2009-02-12 |
20090039887 | MAGNETIC RESONANCE IMAGING APPARATUS - A apparatus includes a bore tube inside which an imaging space is formed to place a subject, a static field generating section which is placed outside the tube and generates a static field in the imaging space, a gradient field generating section which is placed between the tube and the static field generating section and generates a gradient field to superimpose on the static field, cover which is mounted to side end of the static field generating section and forms a vacuum space in a surrounding of the gradient filed generating section around together with the tube and the static field generating section, wherein the cover are fixed by fixation parts thereof to the static field generating section and a load of an air pressure to be applied on the covers at a different part from the fixation part is received by the static field generating section. | 2009-02-12 |
20090039888 | ELECTROMAGNETIC SURVEYING FOR HYDROCARBON RESERVOIRS - A method of electromagnetic surveying of an area of seafloor that is thought or known to contain a subterranean hydrocarbon reservoir is described. The method includes broadcasting an EM signal from a horizontal electric dipole (HED) transmitter and obtaining vertical electric dipole (VED) response data at a remote receiver in response thereto. Survey data are analysed by comparing the VED response data with background data which are not sensitive to the postulated hydrocarbon reservoir. Accordingly, differences between the VED response data and the background data allow for the identification of buried hydrocarbon reservoirs. The background data may be provided by magneto-telluric surveying, controlled source electromagnetic surveying or from direct geophysical measurement. By employing VED response data in this way, surveys may be performed in shallower water than has previously been possible since the VED detector is not sensitive to air-wave components of the EM field induced by the HED transmitter at the VED detector. | 2009-02-12 |
20090039889 | REMOVING EFFECTS OF NEAR SURFACE GEOLOGY FROM SURFACE-TO-BOREHOLE ELECTROMAGNETIC DATA - A method that involves developing an electromagnetic property model of a near surface area and using this electromagnetic property model and electromagnetic data acquired using one or more electromagnetic transmitters located above the near surface area and one or more electromagnetic receivers located within a wellbore to determine one or more electromagnetic properties of a subsurface area. Also an electromagnetic data acquisition system that includes one or more electromagnetic transmitters capable of being operated on the earth's surface, one or more first electromagnetic receivers capable of being operated within a wellbore and capable of receiving signals from the one or more electromagnetic transmitters, and one or more second electromagnetic receivers capable of being located on the earth's surface near the one or more electromagnetic transmitters and capable of receiving signals from the one or more electromagnetic transmitters. Related embodiments are also described. | 2009-02-12 |
20090039890 | ARRANGEMENT FOR OPERATING A GEOPHYSICAL LOCATING DEVICE - The invention relates to an arrangement for operating a geophysical locating device by means of evaluating magnetic field changes, comprising flux gate sensors, an amplifying circuit as well as an evaluating and display unit. | 2009-02-12 |
20090039891 | ELECTROMAGNETIC SURVEYING FOR HYDROCARBON RESERVOIRS - A method of electromagnetic surveying of an area of seafloor that is thought or known to contain a subterranean hydrocarbon reservoir is described. The method includes broadcasting an EM signal from a horizontal electric dipole (HED) transmitter and obtaining vertical electric dipole (VED) response data at a remote receiver in response thereto. Survey data are analysed by comparing the VED response data with background data which are not sensitive to the postulated hydrocarbon reservoir. Accordingly, differences between the VED response data and the background data allow for the identification of buried hydrocarbon reservoirs. The background data may be provided by magneto-telluric surveying, controlled source electromagnetic surveying or from direct geophysical measurement. By employing VED response data in this way, surveys may be performed in shallower water than has previously been possible since the VED detector is not sensitive to air-wave components of the EM field induced by the HED transmitter at the VED detector. | 2009-02-12 |
20090039892 | ELECTRONIC APPARATUS AND BATTERY CHECK METHOD - The present invention provides an electronic apparatus which detects a remaining level of a battery used as a power supply, comprising a current detection unit configured to detect a current value flowing through a circuit of the electronic apparatus, a voltage detection unit configured to detect a voltage value of the battery, and a calculation unit configured to calculate a voltage value of the battery when a consumption current of the electronic apparatus is a predetermined consumption current, based on current values and voltage values detected by the current detection unit and the voltage detection unit, respectively, in a plurality of states different in the consumption current of the electronic apparatus. | 2009-02-12 |
20090039893 | Electrolyte measurement device and measurement procedure - A method for measuring the through-thickness resistance or conductance of a thin electrolyte is provided. The method includes positioning a first source electrode on a first side of an electrolyte to be tested, and positioning a second source electrode on a second side of the electrolyte, wherein the second side is opposite the first side and wherein the first and second source electrodes partially overlap. The method further includes positioning a first sense electrode, corresponding to the first source electrode, on the second side of the electrolyte, wherein the first sense electrode is positioned such that it is in contact with the second side of the electrolyte directly opposite a non-overlapping portion of the first source electrode and is not in direct physical or electrical contact with the second source electrode. The present method also includes positioning a second sense electrode, corresponding to the second source electrode, on the first side of the electrolyte, wherein the second sense electrode is positioned such that it is in contact with the first side of the electrolyte directly opposite a non-overlapping portion of the second source electrode and is not in direct physical or electrical contact with the first source electrode. After the positioning steps, the method further includes passing a current between the first and second source electrodes; and measuring the voltage between the first and second sense electrodes. | 2009-02-12 |
20090039894 | Stage-Fused Transformer Loop System and Method of Rapid Diagnosis of Fault Cable or Transformer Failure Within The System - A stage-fused underground transformer loop system, which includes a series of transformers connected sequentially by a series of cables, and a series of fused elbow terminators connected to the inlets and outlets of the transformers. The fused elbow terminators are arranged in an order of decreasing the fuse capacity starting from the feed. The fused elbow terminator includes an elbow connector having a housing and a cable connector disposed within; and a fused pin connected to the cable connector. Further disclosed is a method of rapid diagnosis of a fault cable or a transformer failure using the stage-fused transformer loop system. | 2009-02-12 |
20090039895 | METHOD OF DETECTING FAULTY VIA HOLES IN PRINTED CIRCUIT BOARDS - A method of detecting faulty via holes of a printed circuit board. The printed circuit board including a number of electric trace segments. The method includes steps of: providing a testing system, the testing system comprising a processor, a storing means and a resistance measuring device, the storing means for storing a function Y | 2009-02-12 |
20090039896 | EXTRUSION FAILURE MONITOR STRUCTURES - A structure and method for monitoring extrusion failures. The structure includes: a test wire having first and second ends; first and second vias contacting first and second ends of the test wire; a first monitor structure electrically isolated from the test wire and surrounding a periphery of the test wire; and a second monitor structure over the test wire, the second monitor structure electrically isolated from the test wire, the second monitor structure extending over at least the first end of the test wire. | 2009-02-12 |
20090039897 | Systems and Methods for Scan Chain Testing Using Analog Signals - Systems and methods for utilizing analog signals for scan chain testing of a device are disclosed. At least one embodiment includes a method for utilizing an analog signal for scan chain testing of a device comprising: passing digital input signals from a test module into a signal disassembler configured to divide the digital input signals into bits corresponding to each of the digital input signals, passing the bits into a digital-to-analog converter configured to generate an analog input signal, passing the analog input signal to an analog-to-digital converter within the device under test to obtain bits corresponding to each of the digital input signals, passing the bits as inputs to scan chains within the device under test, and utilizing the bits to test the device under test by the scan chains. | 2009-02-12 |
20090039898 | Alternator and starter tester with alternator cable check - An alternator and starter motor tester system having alternator cable check. The alternator cable connector is specific to an alternator type. The cable connector is monitored so that if it fails a certain alternator type for a predetermined number of times in a row, the cable will be locked. | 2009-02-12 |
20090039899 | CONTAINER FILLING MACHINE - The present invention provides a container filling machine comprising a sensing device for detecting the integrity of discrete articles for personal treatment to be packaged in a container. The sensing device comprises a pair of capacitor plates positioned in a substantially opposing relationship for creating therebetween an electric field, a track for guiding the discrete articles for personal treatment through said electric field and a processing unit. The processing unit is in communication with the pair of capacitor plates, and is operative for detecting a change in capacitance as a discrete article passes through the electric field in order to determine the integrity of the discrete article on the basis of the change in capacitance and a characteristic capacitance change signature. The container filling machine further comprises a transportation device, a rejection device, a counting device and a plurality of path blocking devices. | 2009-02-12 |
20090039900 | Surgical Testing Instrument and System - The present disclosure describes an instrument for measuring the dielectric properties of biological tissue. The instrument includes a top electrode assembly and a bottom electrode assembly, the top electrode assembly including a top electrode and at least one shaft adjustably positionable to move the top electrode relative to the bottom electrode assembly, the bottom electrode assembly including a bottom test plate and a bottom electrode. The instrument also includes a testing cylinder coupled to the shaft and having an inner cavity defined therein that houses the top electrode and which is designed to enclose the bottom electrode therein. The testing cylinder is configured to reduce at least one of electric current, magnetic current, stray radiative RF fields and external capacitive leakage currents during activation of the top and bottom electrodes. | 2009-02-12 |
20090039901 | GLAZING COMPRISING A CAPACITIVE RAIN SENSOR - The present invention relates to windows having a capacitive rain detector. | 2009-02-12 |
20090039902 | METHODS AND SYSTEMS FOR DETECTING A CAPACITANCE USING SIGMA-DELTA MEASUREMENT TECHNIQUES - Methods, systems and devices are described for detecting a measurable capacitance using sigma-delta measurement techniques. According to various embodiments, a voltage is applied to the measurable capacitance using a first switch. The measurable capacitance is allowed to share charge with a passive network. If the charge on the passive network is past a threshold value, then the charge on the passive network is changed by a known amount for a sufficient number of repetitions until the measurable capacitance can be detected. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to a button, slider, touchpad or other input sensor. | 2009-02-12 |
20090039903 | Contact load measuring apparatus and inspecting apparatus - An inspecting apparatus is provided for inspecting electrical characteristics of an object (W) to be inspected, such as a semiconductor wafer. The inspecting apparatus is provided with a placing table ( | 2009-02-12 |
20090039904 | Probe card, production method thereof and repairing method of probe card - A probe card | 2009-02-12 |
20090039905 | COMPOSITE CONDUCTIVE SHEET, METHOD FOR PRODUCING THE SAME, ANISOTROPIC CONDUCTIVE CONNECTOR, ADAPTER, AND CIRCUIT DEVICE ELECTRIC INSPECTION DEVICE - Disclosed herein are a composite conductive sheet that has rigid conductors movable in a thickness-wise direction of an insulating sheet without falling off from the insulating sheet and is easy to handle by itself, a production process thereof, and an anisotropically conductive connector, an adaptor device and an electrical inspection apparatus for circuit devices, which are each equipped with this composite conductive sheet. | 2009-02-12 |
20090039906 | CIRCUIT BOARD APPARATUS FOR WAFER INSPECTION, PROBE CARD, AND WAFER INSPECTION APPARATUS - Disclosed herein are a circuit board device for wafer inspection having high connection reliability, and a probe card and a wafer inspection apparatus, which are equipped with this circuit board device for wafer inspection. The circuit board device for wafer inspection has a board body and a connector device provided on the board body and obtained by stacking a plurality of connector units on each other, wherein each of the connector units has a first anisotropically conductive elastomer sheet, a composite conductive sheet, a second anisotropically conductive elastomer sheet and a pitch converting board, the composite conductive sheet has an insulating sheet, in which a plurality of through-holes have been formed, and rigid conductors respectively arranged into the through-holes in this insulating sheet so as to protrude from both surfaces of the insulating sheet, and in each of the rigid conductors, terminal portions having a diameter greater than the diameter of the through-hole are formed on both ends of a body portion inserted into the through-hole in the insulating sheet in order for the conductor to be provided movably in the thickness-wise direction of the insulating sheet. | 2009-02-12 |
20090039907 | PROBE CARD FOR SEMICONDUCTOR TEST - A probe card for testing semiconductor devices is disclosed, which can precisely test semi-conductor chips, in which probes, probe bars, and a probe block housing of the probe card are improved, such that the durability of each part of the probe card is increased. The probe card comprises: a probe for absorbing and dispersing elasticity; a probe bar for receiving the probe and preventing the probe from bending; and a probe block housing for mounting probe blocks connected in parallel with each other. Each probe block is formed as the probe bars are assembled thereto. | 2009-02-12 |
20090039908 | MICROSTRUCTURE INSPECTING APPARATUS AND MICROSTRUCTURE INSPECTING METHOD - A microstructure inspecting apparatus for evaluating a characteristic of at least one microstructure having a movable section formed on a substrate, includes: a probe, which electrically connects with pads formed on the microstructure, for obtaining an electric signal of the microstructure; a plurality of nozzles, positioned in the vicinity of the movable section of the microstructure, for discharging or sucking a gas; a nozzle flow rate controller for controlling a flow rate of the gas discharged from or sucked into the plurality of nozzles; and an evaluation unit for detecting a displacement of the movable section of the microstructure by using the electric signal obtained through the probe, wherein the displacement is made by the gas discharged from or sucked into the plurality of nozzles, and evaluating the characteristic of the microstructure based on the detected result. | 2009-02-12 |
20090039909 | SEMICONDUCTOR DEVICE HAVING CONTACT FAILURE DETECTOR - A semiconductor device having a circuit for detecting a defective connection to the semiconductor device. A semiconductor device including multiple internal circuits; multiple pads respectively connected to the internal circuits; and a contact failure detector coupled between the pads and a common node and configured to detect contact failures between tips of a probe card and the pads. | 2009-02-12 |
20090039910 | TEST APPARATUS FOR SEMICONDUCTOR MODULES - A test apparatus for semiconductor modules. One embodiment provides a test system. The test system includes a handler configured to receive at least one semiconductor module. The test system is equipped with a plurality of different pin cards. The handler has at least two independent groups of test receptacles. | 2009-02-12 |
20090039911 | METHOD TO MONITOR SUBSTRATE VIABILITY - An invention for detecting and reporting a condition is described. The components of the invention comprise an electronic package comprising a substrate with electrically conducting lines electrically connected to an integrated chip, and to a source of voltage. The integrated circuit chip is mounted onto a substrate and electrically connected to at least one electrically conducting line. A sensor, combined with a signal generator, connected to the substrate, is operable to generate an electrical signal upon detection of a condition selected from a condition of the substrate and a condition of an electrical connection to the substrate. The signal generator, after immediately receiving the aforesaid electrical signal from the sensor, emits the warning signal. The warning signal of indicated of an existing defect or a condition which can lower the longevity of the total electronic package. | 2009-02-12 |
20090039912 | Method of Acceptance for Semiconductor Devices - A method of accepting semiconductor chips is provided using on-chip parametric measurements. An on-chip parametric measurement structure is determined for each parameter in a set of parametric acceptance criteria. An on-chip parametric measurement macro is included in a design of each semiconductor chip for each identified on-chip parametric measurement structure. Each on-chip parametric measurement macro is tested to determine compliance of the semiconductor chip to the set of parametric acceptance criteria. Compliance to the set of parametric acceptance criteria is validated. | 2009-02-12 |
20090039913 | SEMICONDUCTOR INTEGRATED CIRCUIT - A semiconductor integrated circuit includes a control signal generating circuit which is configured to set, at least at a time of a first state, first and fifth control signals at a first voltage level, and second, third and fourth control signals at a second voltage level, and to set, at a time of a second state, the first to fourth control signals at the first voltage level, and the fifth control signal at an arbitrary voltage level. | 2009-02-12 |
20090039914 | SYSTEM FOR TRANSMISSION LINE TERMINATION BY SIGNAL CANCELLATION - A communication system having first and second states for use with a shared transmission line composed of at least two conductors and composed of first and second transmission line segments connected to each other at a single connection point. In the first state, a termination is coupled to the single connection point and is operative to at least attenuate a signal propagated between the first and second segments. In the second state, a driver is coupled to the connection point and is operative to conduct a signal over the first and second segments. | 2009-02-12 |
20090039915 | Integrated Circuit, Chip Stack and Data Processing System - An integrated circuit includes a first connection and a memory circuit. The integrated circuit is switchable between a master mode of operation, in which a buffer between the first connection and the memory circuit is activated, and a slave mode of operation, in which the buffer between the first connection and the memory circuit is deactivated. | 2009-02-12 |
20090039916 | Systems and Apparatus for Providing a Multi-Mode Memory Interface - An integrated circuit for a memory input/output (I/O) pin has five different modes of operation. The memory chip is enabled to operate with unbuffered (or registered) dual inline memory modules (DIMMs) as well as fully buffered DIMMs. A T-coil circuit equalizes the capacitive loading of the high-speed functions. An exemplary embodiment provides a memory chip containing a multi-functional physical I/O circuit that can act as power or ground; as a DDR2 or DDR3 interface; as a high-speed differential receiver; or as a high-speed differential transmitter. | 2009-02-12 |
20090039917 | Programmable Interconnect Structures - A programmable interconnect structure for an integrated circuit comprises: a pass-gate fabricated on a substrate layer to electrically connect a first node to a second node; and a configuration circuit including at least one memory element to control said pass-gate fabricated substantially above said substrate layer; and a programmable method to select between isolating said first and second nodes and connecting said first and second nodes. | 2009-02-12 |
20090039918 | THREE DIMENSIONAL INTEGRATED CIRCUITS - A programmable integrated circuit (IC), comprising: a programmable logic circuit configured by a first control signal coupled to a gate electrode of a transistor in the logic circuit; and a first plurality of read only memory (ROM) elements capable of coupling to the first control signal, wherein a said first ROM elements is selected to couple by one or more decode signals, and wherein the first ROM elements store a plurality of user specifications. | 2009-02-12 |
20090039919 | DYNAMIC AND DIFFERENTIAL CMOS LOGIC WITH SIGNAL-INDEPENDENT POWER CONSUMPTION TO WITHSTAND DIFFERENTIAL POWER ANALYSIS - A dynamic and differential CMOS logic style is disclosed in which a gate uses a fixed amount of energy per evaluation event. The gate switches its output at every event and loads a constant capacitance. The logic style is a Dynamic and Differential Logic (DDL) style. The DDL style logic typically has one charging event per clock cycle and the charging event does not depend on the input signals. The differential feature masks the input value because a precharged output nodes is discharged during the evaluation phase. The dynamic feature breaks the input sequence: the discharged node is charged during the subsequent precharge phase. | 2009-02-12 |
20090039920 | SYSTEM AND METHOD FOR MAPPING SYSTEM TRANSFER FUNCTIONS - A method, circuit, and computer program product for receiving a first intermediate signal that is at least partially based upon a first reference signal. A second intermediate signal is received that is at least partially based upon a second reference signal. An output signal is generated that is based upon the difference between the first intermediate signal and the second intermediate signal. A first anticipated differential change in the output signal is determined, the first anticipated differential change to occur based upon a transition in the first reference signal. A second anticipated differential change in the output signal is determined, the second anticipated differential change to occur based upon a transition in the second reference signal. A first realized differential change in the output signal is measured, the first realized differential change occurring based upon a transition in the first reference signal. A second realized differential change in the output signal is measured, the second realized differential change occurring based upon a transition in the second reference signal. The first realized differential change in the output signal is compared to the first anticipated differential change in the output signal to determine a first nonlinearity indicator. A second realized differential change in the output signal is compared to the second anticipated differential change in the output signal to determine a second nonlinearity indicator. | 2009-02-12 |
20090039921 | VOLTAGE DETECTING CIRCUIT AND BATTERY DEVICE USING SAME - A voltage detecting circuit included in a battery device includes an input voltage comparing circuit that compares a first threshold value voltage or a second threshold value voltage lower than the first threshold value voltage with an input voltage to control the opening and closing of an output switching element, and a threshold value voltage setting circuit that compares a third threshold value voltage lower than the second threshold value voltage with the input voltage and, when the input voltage changes from a low voltage to a high voltage and intersects the third threshold value voltage, outputs a pulse for a predetermined period thereafter so that the second threshold value is selected in the input voltage comparing circuit. As a result, when the input voltage increases from the ground potential, the second threshold value is compared with the input voltage in the input voltage comparing circuit. The voltage detecting circuit and battery device using the circuit, when assembled in battery using equipment, uses a battery up to its usage limit. | 2009-02-12 |
20090039922 | Multi-level comparator for fix power consumption - A multi-level comparator with fixed power consumption is disclosed. By using the switch character of differential pair and parallelizing single side of common source amplifier with multi-level input, the power of the multi-level comparator can be fixed by the current bias. This result shows that the multi-level comparator is able to heighten input stages at fixed power. Therefore, the multi-level comparator has the functionalities of several different comparators while maintaining fixed power consumption. | 2009-02-12 |
20090039923 | TRACK-AND-HOLD CIRCUIT WITH LOW DISTORTION - A track-and-hold circuit capable of tracking an analog input signal and holding a sampled voltage of the analog input signal at a sampling instant for processing by other circuitry, in response to a track signal that alternates with a hold signal. A first capacitor is provided, having a first terminal connected to a power supply terminal. Tracking circuitry operates when in an on state to apply through a resistor a tracking voltage to a second terminal of the first capacitor that corresponds to the voltage of the analog input signal, by applying the tracking voltage to a first terminal of the resistor, the second terminal of the resistor being connected to the second terminal of the first capacitor. A switch, responsive to the track signal and the hold signal, operates to switch the tracking circuitry to an on state in response to the track signal and to an off state in response to the hold signal, the time of change from the track signal to the hold signal comprising the sampling instant. A second capacitor is provided, having a first terminal connected to the first terminal of the resistor and having a second terminal connected to a power supply terminal. The second capacitor substantially reduces frequency-dependent harmonic distortion. | 2009-02-12 |
20090039924 | Systems and methods for reducing distortion in semiconductor based sampling systems - Circuits and methods that improve the performance of electronic sampling systems are provided. Parasitic capacitance associated with bootstrap circuitry is reduced, thereby decreasing signal distortion caused by capacitive loading at the input of the sampling circuit. The impedance of a sampling semiconductor switch is maintained substantially constant during sample states, at least in part, by accounting for non-linear parasitic capacitances associated with a sampling switch control terminal in order to reduce or minimize signal distortion associated with sampled signals that pass through the sampling switch. | 2009-02-12 |
20090039925 | SAMPLE-AND-HOLD AMPLIFICATION CIRCUITS - A sample-and-hold amplification circuit comprises an amplifier, a first sample-and-hold unit, and a second sample-and-hold unit. The amplifier has an input terminal and an output terminal. The first sample-and-hold unit is coupled to the input terminal and the output terminal. The second sample-and-hold unit is coupled to the input terminal and the output terminal. When the first sample-and-hold unit is arranged to perform a sampling operation, the second sample-and-hold unit performs a holding operation, and when the first sample-and-hold unit is arranged to perform the holding operation, the second sample-and-hold unit performs the sampling operation. | 2009-02-12 |
20090039926 | Apparatus for Providing AC Voltage - The invention is directed to an apparatus for providing an AC voltage, comprising synthesizer means for generating at least one periodic output voltage signal, each periodic output voltage signal having an output frequency, wherein the synthesizer means is supplied by an input AC voltage having an input frequency, wherein the synthesizer is configured such that each output frequency differs from the input frequency. | 2009-02-12 |
20090039927 | CLOCK MODE DETERMINATION IN A MEMORY SYSTEM - A clock mode configuration circuit for a memory device is described. A memory system includes any number of memory devices serially connected to each other, where each memory device receives a clock signal. The clock signal can be provided either in parallel to all the memory devices or serially from memory device to memory device through a common clock input. The clock mode configuration circuit in each memory device is set to a parallel mode for receiving the parallel clock signal, and to a serial mode for receiving a source synchronous clock signal from a prior memory device. Depending on the set operating mode, the data input circuits will be configured for the corresponding data signal format, and the corresponding clock input circuits will be either enabled or disabled. The parallel mode and the serial mode is set by sensing a voltage level of a reference voltage provided to each memory device. | 2009-02-12 |
20090039928 | LOW POWER AND LOW TIMING JITTER PHASE-LOCK LOOP AND METHOD - A phase-lock loop generates an output clock signal from an input clock signal. The output clock signal is coupled through a clock tree and is fed back to a phase detector, which compares the phase of the output clock signal to the phase of the input clock signal. The output clock signal is generated by a voltage controlled oscillator having a control input coupled to receive an output from the phase detector, and a frequency multiplier coupled to the output of the voltage controlled oscillator. As a result, the CLK | 2009-02-12 |
20090039929 | Method to Reduce Static Phase Errors and Reference Spurs in Charge Pumps - A phase-locked-loop (PLL) circuit, that includes: a differential phase-frequency detector, a charge pump and at least one logical gate disposed therebetween for providing cancellation of pulses of a substantially equivalent value output by the detector to the charge pump; wherein the at least one logical gate receives the detector output signals and generates control signals for the charge pump such that the pulses of substantially equivalent value are eliminated. | 2009-02-12 |
20090039930 | DLL CIRCUIT, SEMICONDUCTOR MEMORY DEVICE USING THE SAME, AND DATA PROCESSING SYSTEM - A DLL circuit includes a delay line (CDL) ( | 2009-02-12 |
20090039931 | Frequency-doubling delay locked loop - A frequency multiplier circuit comprising a delay line receiving at one end thereof a reference clock for generating clock tap outputs from respective ones of a plurality of period matched delay elements; a clock combining circuit responsive to pairs of tap outputs for generating a rising and falling edge of an output clock pulse from respective ones of the pairs whereby the output clock period is less than the input clock period. | 2009-02-12 |
20090039932 | DELAY CIRCUIT OF SEMICONDUCTOR MEMORY APPARATUS - A delay circuit of a semiconductor memory apparatus can include a clock period sensing unit for generating a sensing signal in response to a clock frequency, and a selective delay unit for delaying an input signal for a delay time and then output the input signal as an output signal, wherein the delay time can be one selected from a plurality of delay times according to the sensing signal. The delay time can be selectively determined according to a clock frequency used in a semiconductor memory apparatus. | 2009-02-12 |
20090039933 | SYSTEM AND METHOD - System and method, including path sections, each path section including a supply line into which a medium-frequency current is able to be injected by an infeed assigned to the particular path section, | 2009-02-12 |
20090039934 | Signal Oversampling for Improved S:N in Reflector Movement System - Eight or more transition points are generated during a given period, and are used in tracking movement of an interferometer reflector. Duty cycles of generated square waves are used to establish precise intervals between the transition points, and precise wave-phase relationships. | 2009-02-12 |
20090039935 | Providing A Low Phase Noise Reference Signal - A reference clock generator includes an oscillator to generate a periodic signal, a shaping circuit and a filter. The shaping circuit shapes the periodic signal to generate a clock signal. The filter is located between the oscillator and the shaping circuit. | 2009-02-12 |
20090039936 | Flip-flop circuit, pipeline circuit including a flip-flop circuit, and method of operating a flip-flop circuit - Example embodiments relate to an electronic circuit, for example, a flip-flop circuit, a pipeline circuit including the flip-flop circuit and a method for operating the flip-flop circuit. A flip-flop circuit may include a precharge transistor configured to precharge an internal node to a first power supply voltage in response to a clock signal, a first pull-down unit configured to pull down a voltage of the internal node to a second power supply voltage, a pull-up transistor configured to pull up a voltage of an output node to the first power supply voltage in response to the voltage of the internal node, and a second pull-down unit configured to pull down the voltage of the output node to the second power supply voltage. The pipeline circuit may include a pulse generating circuit, a first flip-flop group, a combination logic circuit, and a second flip-flop group. A method for operating a flip-flop circuit may include precharging an internal node to a first power supply voltage in response to a clock signal, pulling down a voltage of the internal node, pulling down the voltage to a second power supply voltage in response to a first pulse signal, and pulling up a voltage of an output node to the first power supply voltage. | 2009-02-12 |
20090039937 | Semiconductor Integrated Circuit with a Logic Circuit Including a Data Holding Circuit - A semiconductor integrated circuit includes a first data holding section, a first pull-up circuit, a first pull-down circuit, a first feedback circuit, and a second feedback circuit. The first data holding section holds first output data. The first pull-up circuit takes in input data as a pull-up control signal and, when the pull-up control signal takes one value, pulls up the first output data. The first pull-down circuit takes in the input data as a pull-down control signal and, when the pull-down control signal takes the other value, pulls down the first output data. The first feedback circuit feeds back a first feedback signal corresponding to the first output data as the pull-up control signal to the first pull-up circuit. The second feedback circuit feeds back a second feedback signal corresponding to the first output data as the pull-down control signal to the first pull-down circuit. | 2009-02-12 |
20090039938 | DELAYING STAGE SELECTING CIRCUIT AND METHOD THEREOF - A delaying stage selecting circuit for selecting a specific delaying stage from a plurality of delaying stages, where the delaying stages are for outputting delayed clock signals, includes: a first register for sampling the delayed clock signals according to a clock signal to generate sampled values; first memory units, wherein the first memory units are utilized to memorize the sampled values, and each of first memory unit outputs at least one of the sampled values according to a corresponding first selecting signal; a first selecting unit, for outputting the sampled values according to a second selecting signal; a determining module, for determining if the sampled values meet a specific relation, where if the determination result is positive then determining the particular delaying stage; and a counter for generating a counting value to control the delayed clock signal sampled by the first register. | 2009-02-12 |
20090039939 | VARIABLE DELAY CIRCUIT, TESTING APPARATUS, AND ELECTRONIC DEVICE - Provided is a variable delay circuit outputting an output signal delayed with respect to an input signal by a designated delay time, including: a delay controller outputting a control voltage according to the delay time; a MOS transistor receiving the control voltage at a gate, and outputs a drain current according to the control voltage; a correction section connected in parallel to a source and a drain of the current controlling MOS transistor, and outputs a correction current on a monotonic decrease as the drain current increases in a range larger than a predetermined boundary current within a normal usage range of the drain current; and a delay element running an output current resulting from adding the correction current to the drain current, between the delay element and an output terminal of the variable delay circuit, in changing a signal value of the output signal according to the input signal. | 2009-02-12 |
20090039940 | APPARATUS AND METHOD FOR PREVENTING GENERATION OF GLITCH IN A CLOCK SWITCHING CIRCUIT - An apparatus and for preventing a glitch in a clock switching circuit includes a select signal manager and a clock gate unit. The select signal manager generates a detect change signal, provides the detect change signal as an input signal for generating a clock gate signal to the clock gate unit, and changes a muxsel signal into a select signal using the clock gate signal to select a clock intending for switching. Upon receiving the detect change signal, the clock gate unit gates a received clock, generates the clock gate signal using a level of the detect change signal as an input signal, and provides the generated clock gate signal to the select signal manager. | 2009-02-12 |
20090039941 | METHOD AND CIRCUIT FOR GENERATING MEMORY CLOCK SIGNAL - A memory clock signal is generated in response to a reference clock signal and a clock enable signal. The memory clock signal with a frequency identical to that of the reference clock signal is generated during the clock enable signal is in an enabled state; and the memory clock signal with a reduced frequency is generated when the clock enable signal is changed from the enabled state to a disabled state. The generation of a memory clock signal is adaptive so as to save power. | 2009-02-12 |
20090039942 | LEVEL SHIFTER - A level converter comprises first and second latches, and first through fourth transistors. The first latch has first and second power supply terminals, and first and second nodes. The second latch has third and fourth power supply terminals, and third and fourth nodes. The first transistor has a first current electrode coupled to the first node, a control electrode coupled to receive a first bias voltage, and a second current electrode. The second transistor has a first current electrode coupled to the second current electrode of the first transistor, a second current electrode coupled to the third node, and a control electrode coupled to receive a second bias voltage. The third transistor has a first current electrode coupled to the second node, a control electrode coupled to receive the first bias voltage, and a second current electrode. The fourth transistor has a first current electrode coupled to the second current electrode of the third transistor, a control electrode coupled to receive the second bias voltage, and a second current electrode coupled to the fourth node. | 2009-02-12 |
20090039943 | MIXER AND TRANSCEIVER HAVING THE MIXER - Provided are a mixer and a transceiver having the mixer. The mixer includes: an local oscillation (LO) differential signal generator converting an input LO signal into a differential signal; and a mixing unit receiving the LO differential signal as a first input and a first signal having a first frequency as a second input and performing differential amplification on the LO differential signal and the first signal to output a second signal having a second frequency. | 2009-02-12 |
20090039944 | REFERENCE VOLTAGE GENERATION CIRCUIT AND SEMICONDUCTOR STORAGE APPARATUS USING THE SAME - According to an aspect of the present invention, there is provided a reference voltage generation circuit including: a first circuit configured to generate a first voltage that is independent of a power supply voltage and that is dependent of a temperature; a second circuit configured to generate a second voltage that is independent of the power supply voltage and that is dependent of the temperature; and a third circuit configured to compare the first voltage and the second voltage and to generate a reference voltage based on a higher one therebetween. | 2009-02-12 |
20090039945 | Bias Current Generator - An electronic device generates a current with a predetermined temperature coefficient. The circuit comprises a temperature coefficient (TC) component receiving a bias current, a differential amplifier providing a buffered output voltage based on the voltage across the TC component and a resistor receiving an TC current based on the differential amplifier output voltage. The differential amplifier has a predetermined input related offset which decreases the voltage drop across the resistor. The temperature coefficient component could have either a negative temperature component (NTC) or a positive temperature component (PTC). | 2009-02-12 |