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| Application No. | Application Title | Issue Date |
| 20120126855 | REDUCED TEMPERATURE DEPENDENT HYSTERETIC COMPARATOR This document discusses, among other things, apparatus and methods for controlling a hysteresis range of a voltage comparator. In an example, an apparatus can include an amplifier having a temperature dependency, a comparator configured to receive first and second curre... | 05/24/2012 |
| 20110316587 | Bistable CML Circuit A common-source circuit including two branches in parallel between a terminal of application of a voltage and a current source, each branch comprising: a series association of a resistor and a transistor, having their junction point defining an output terminal of the br... | 12/29/2011 |
| 20110221477 | HIGH-SPEED DIFFERENTIAL COMPARATOR CIRCUITRY WITH ACCURATELY ADJUSTABLE THRESHOLD A high-speed differential comparator circuit is provided with an accurately adjustable threshold voltage. Differential reference voltage signals are provided to control the threshold voltage of the comparator. The common mode voltage of the reference signals preferably ... | 09/15/2011 |
| 20110181321 | SEMICONDUCTOR INTEGRATED CIRCUIT A semiconductor integrated circuit has a squelch circuit which has a first noninverting input terminal and a first inverting input terminal, which compares differential amplitude between a signal which is input to the first noninverting input terminal and a signal which... | 07/28/2011 |
| 20110140742 | TRANSMISSION DEVICE HAVING EMPHASIS FUNCTION A transmission driver including a main driving stage and a sub-driving stage is provided. The main driving stage has a main current source, and is adapted for receiving a first differential input data stream and outputting a differential output data stream by using the ... | 06/16/2011 |
| 20110109348 | DYNAMIC COMPARATOR WITH BACKGROUND OFFSET CALIBRATION A dynamic comparator with background offset calibration is provided. The dynamic comparator includes at least one input differential pair, a first back-to-back inverter, a second back-to-back inverter, and an integrator. The input differential pair includes two current ... | 05/12/2011 |
| 20110089977 | Systems and Methods of Low Offset Switched Capacitor Comparators The disclosed systems and methods of low offset switched capacitor comparator reduce settling errors. The system operates in two major phases. During a first phase, the input voltage is sampled on the input capacitors and a differential amplifier is configured in a unit... | 04/21/2011 |
| 20110057686 | HYSTERESIS COMPARATOR CIRCUIT AND SEMICONDUCTOR DEVICE INCORPORATING SAME A hysteresis comparator circuit that compares first and second input signals to output a hysteresis output signal includes a constant current source, a first comparator, a second comparator, and an output circuit. The constant current source includes a load resistor to ... | 03/10/2011 |
| 20110025379 | LATCHED COMPARATOR AND METHODS THEREFOR A compare cycle of a comparator includes a precharge phase and a compare phase. During the precharge phase, a node of the comparator is precharged to a defined voltage. In addition, during the precharge phase an input transistor of the comparator is decoupled from the n... | 02/03/2011 |
| 20110001517 | SEMICONDUCTOR DEVICE A disclosed semiconductor device includes an input terminal, a power line, a pnp-bipolar transistor connected to the power line, a first resistor connecting an emitter of the transistor to the input terminal, a second resistor connecting a collector of the transistor to... | 01/06/2011 |
| 20110001516 | CIRCUIT, APPARATUS, AND METHOD FOR SIGNAL TRANSFER A signal transfer circuit according to the present invention includes a differential signal generation unit that generates a differential signal according to a voltage difference between two input signals, a voltage difference detection unit that detects a voltage diffe... | 01/06/2011 |
| 20100327914 | Accurate Hysteretic Comparator and Method A hysteretic comparator is proposed for comparing input signals and producing an output signal VOT with a hysteresis window Vhys. The hysteretic comparator includes a differential input stage with current output (DICO) having input transistors with transcondu... | 12/30/2010 |
| 20100289531 | COMPARATOR WITH HYSTERESIS Techniques for providing a comparator incorporating amplitude hysteresis. In an exemplary embodiment, a current offset stage is coupled to a comparator having a folded cascode architecture. The current offset stage offsets the current generated from an input stage to de... | 11/18/2010 |
| 20100245149 | COMPARISON CIRCUIT AND ANALOG-TO-DIGITAL CONVERSION DEVICE A comparison circuit comprising: an input circuit includes a first transistor for receiving a first signal, and a second transistor for receiving a second signal; a first current route of which the electric current is controlled by the first transistor; a second current... | 09/30/2010 |
| 20100237906 | RECEIVING CIRCUIT A receiving circuit includes an impedance compensating circuit, a first input terminal and a second input terminal coupled to a first signal line and a second signal line, a first signal and a second signal corresponding to differential signals being transmitted at the ... | 09/23/2010 |
| 20100213983 | AMPLIFIERS WITH INPUT OFFSET TRIM AND METHODS Amplifiers with power-on trim and methods using an amplifier system having an amplifier system input and an amplifier system output, an amplifier, a comparator, a successive approximation register having an input coupled to an output of the comparator, a first switch fo... | 08/26/2010 |
| 20100207663 | SEMICONDUCTOR DEVICE FOR RECEIVING EXTERNAL SIGNAL HAVING RECEIVING CIRCUIT USING INTERNAL REFERENCE VOLTAGE A semiconductor device includes a reference voltage generating unit configured to produce a reference voltage by dividing a voltage difference between a positive clock terminal and a negative clock terminal, and a logic determination unit configured to determine a logic... | 08/19/2010 |
| 20100182051 | INPUT CIRCUIT OF SEMICONDUCTOR INTEGRATED CIRCUIT An input circuit is disclosed. The input circuit can include a cross voltage generating block that can be configured to perform charge-sharing on a pair of input signals whose phases are opposite to each other and generate a cross voltage, and an input buffer block that... | 07/22/2010 |
| 20100149897 | LOW CURRENT WIDE VREF RANGE INPUT BUFFER A low-current input buffer is disclosed. The buffer uses self-biased N and P channel differential pairs with their outputs tied together. The self-biasing assists in reducing current consumption. The combination of N and P-channel differential pairs results in symmetry ... | 06/17/2010 |
| 20100149896 | SENSE AMPLIFIER A sense amplifier comprises a first cascode transistor, a second cascode transistor, a first feedback circuit, a second feedback circuit, and a comparator. The drain of the first cascode transistor is connected directly to a first voltage source. The gate of the first c... | 06/17/2010 |
| 20100141302 | SIGNAL CONVERTING CIRCUIT A signal conversion circuit 2 comprises a differential amplifier portion 10 and a source follower portion 20. When differential voltage signals INp and INn are input to a first input terminal 5 and second input terminal 6 respectively,... | 06/10/2010 |
| 20100039305 | COMPARATOR CIRCUIT AND ANALOG DIGITAL CONVERTER HAVING THE SAME A comparator circuit includes a first comparator comparing an input signal to a first comparison value and generating a first determination signal, a second comparator comparing the input signal to a second comparison value different from the first comparison value and ... | 02/18/2010 |
| 20090303094 | LOW VOLTAGE DIGITAL TO ANALOG CONVERTER, COMPARATOR AND SIGMA-DELTA MODULATOR CIRCUITS Circuits that operate with power supplies of less than 1 Volt are presented. More particularly, circuits that operate with supply voltages near or lower than the threshold voltage of the transistors in those circuits are presented. Various circuits embodiments such as o... | 12/10/2009 |
| 20090224805 | ELECTRONIC CIRCUIT WITH COMPENSATION OF INTRINSIC OFFSET OF DIFFERENTIAL PAIRS The invention relates to analog integrated electronic circuits using differential pairs. The proposal is for a method of automatic correction of offset voltage. The inputs (V1, V2) of the differential circuit are short circuited during a calibration phase ... | 09/10/2009 |
| 20090128193 | FAST, LOW OFFSET GROUND SENSING COMPARATOR A fast, accurate, low offset comparator may be configured with multiple gain stages. A low gain, low input impedance, and fully differential common-gate amplifier may be configured as a first stage in the multi-stage comparator, providing a wide bandwidth for small powe... | 05/21/2009 |
| 20090108882 | LOW POWER LOW VOLTAGE DIFFERENTIAL SIGNALING (LVDS) OUTPUT DRIVERS A method and apparatus for providing a low power low voltage differential signaling driver are disclosed. In an example, a low voltage differential signaling driver circuit is described, comprising a first current source to provide current to a first differential pair o... | 04/30/2009 |
| 20090091354 | Semiconductor circuit In a conventional circuit to buffer differential clock signals at plural stages, the deteriorations of duty ratios caused by the variations of transistors constituting the circuit have not been compensated. Further, when it is attempted to increase the effect of compens... | 04/09/2009 |
| 20090058471 | Rail-to-rail comparator with hysteresis A comparator, comprising at least one current stage for providing a first current proportional to a difference between first and second comparator inputs, the first current being provided to an amplifier input; an amplifier for amplifying a current provided to the ampli... | 03/05/2009 |
| 20090033371 | AMPLIFIER CIRCUIT FOR DOUBLE SAMPLED ARCHITECTURES A double sampled switched capacitor architecture as described herein includes an amplifier having two separate inputs corresponding to two separate amplifier sections. The amplifier uses a first differential transistor pair for the first amplifier section, a second diff... | 02/05/2009 |
| 20090033372 | SIMULTANEOUS LVDS I/O SIGNALING METHOD AND APPARATUS First and second devices may simultaneously communicate bidirectionally with each other using only a single pair of LVDS signal paths. Each device includes an input circuit and a differential output driver connected to the single pair of LVDS signal paths. An input to t... | 02/05/2009 |
| 20090033370 | COMPARATOR WITH LOW SUPPLIES CURRENT SPIKE AND INPUT OFFSET CANCELLATION A current control circuit is coupled in parallel with the current paths of a differential comparator circuit to ensure that a substantially constant current is drawn from a current source during all operating phases of a comparator. The current control circuit is biased... | 02/05/2009 |
| 20090027086 | Comparator and method with controllable threshold and hysteresis A comparator (12A,12B) includes a first differential input stage (10) including first (MN2) and second (MN3) input transistors and a load (MP9,MP10), the first input transistor (MN2) having a gate, source, and drai... | 01/29/2009 |
| 20090021284 | Low voltage differential signal receiver The invention discloses a low voltage differential signal (LVDS) receiver, which is realized in an integrated circuit. The LVDS receiver includes: an input stage circuit receiving a full-range common-mode voltage and converting it into a current signal; a current source... | 01/22/2009 |
| 20080238491 | Interface circuit An interface circuit includes a reference voltage generation circuit to generate a reference voltage, a differential voltage signal generation circuit to convert send data input in sending data into a pair of differential voltage signals and output the pair of different... | 10/02/2008 |
| 20080218218 | POTENTIAL COMPARATOR AND TEST APPARATUS The potential comparator includes input wires 3 and 4 that input a differential signal output from a test object 2, a high-threshold side divided-voltage generating section 5 that acquires the differential signal from each of the input wires 3 and <... | 09/11/2008 |
| 20080158206 | SIGNAL TRANSFER APPARATUS A signal transfer apparatus comprises a differential signal generating part which receives an input signal from a positive-electrode side input terminal and an input signal from a negative-electrode side input terminal, and outputs a differential signal obtained from th... | 07/03/2008 |
| 20080150589 | SYSTEMS AND METHODS FOR MULTIPLE EQUATION GRAPHING Various systems and methods for comparing signals are disclosed herein. For example, some embodiments of the present invention provide comparator circuits with programmable hysteresis. Such circuits include a comparator input circuit that receives two inputs to be compa... | 06/26/2008 |
| 20080054949 | High gain, high speed comparator operable at low current A comparator includes a differential pair of transistors providing a first amplification stage and receiving inverting and non-inverting input signals. An output transistor is coupled to the differential pair of transistors providing a second amplification stage and tra... | 03/06/2008 |
| 20080048731 | COMPARATOR AND METHOD FOR OPERATING THEREOF A comparator including an amplifier unit, a latch unit, and a switch unit is provided. The amplifier unit receives and gains an input signal pair respectively and then outputs an output signal pair. The latch unit is coupled to the amplifier unit. During a tracking peri... | 02/28/2008 |
| 20080042692 | VOLTAGE COMPARATOR APPARATUS AND METHOD HAVING IMPROVED KICKBACK AND JITTER CHARACTERISTICS A comparator apparatus for comparing a first and a second voltage input includes a pair of cross-coupled inverter devices, including a pull up device and a pull down device, with output nodes defined between the pull up and pull down devices. A first switching device is... | 02/21/2008 |
