Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Application No. | Application Title | Issue Date |
| 20120127138 | Output circuit, data driver, and display device An output circuit includes a differential amplifier circuit, an output amplifier circuit, a control circuit, input and output terminals, and first to third supply terminals applied with first to third supply voltages, respectively. The third supply voltage is set a volt... | 05/24/2012 |
| 20120081181 | COMPARATOR CIRCUIT HAVING LATCHING BEHAVIOR AND DIGITAL OUTPUT SENSORS THEREFROM A digital output sensor includes a sensing structure that outputs a differential sensing signal and includes at least one sensing element. An integrated circuit includes a substrate including signal conditioning circuitry for conditioning the sensing signal that include... | 04/05/2012 |
| 20120081180 | LAYOUT METHOD FOR DIFFERENTIAL AMPLIFIER AND LAYOUT USING THE SAME A differential amplifier layout includes a current mirror having a first transistor, a second transistor, and a third transistor. The current mirror receives a first power supply through the first transistor. The second transistor is part of a reference current branch a... | 04/05/2012 |
| 20120044021 | DIFFERENTIAL AMPLIFIER CIRCUIT A differential amplifier circuit includes: P-type and N-type differential input units outputting respectively first and second outputs in response to first and second input voltages; a P-type current mirror circuit driven by the second output; an N-type current mirror c... | 02/23/2012 |
| 20120025911 | Low Noise Amplifier with Current Bleeding Branch An LNA circuit for providing a wide range of gain while maintaining the output headroom. In a radio frequency (RF) receiver, the signal received by the receiver may be extremely small. For a transmitter in a short distance, the received signal may be relatively strong. ... | 02/02/2012 |
| 20120025912 | DIFFERENTIAL AMPLIFIER CIRCUIT A differential amplifier circuit can reduce consumption current and the circuit size while improving a power supply rejection ratio. The differential amplifier circuit includes a power supply line and an input part that includes an input circuit and an active load. The ... | 02/02/2012 |
| 20110291760 | Folded cascode differential amplifier and semiconductor device A folded cascode differential amplifier includes a high-voltage input stage and a low-voltage output stage. The input stage is formed from high-voltage MOS transistors, two of which constitute a differential pair. The output stage is formed from low-voltage MOS transist... | 12/01/2011 |
| 20110279718 | AMPLIFIER FOR REDUCING HORIZONTAL BAND NOISE AND DEVICES HAVING THE SAME An amplifier is provided. The amplifier includes a differential amplifier including a tail, a current mirror connected between output terminals of the differential amplifier and a power line receiving a supply voltage, and a first switching circuit for connecting and di... | 11/17/2011 |
| 20110279182 | Circuit for Power Amplification of an Input Signal and Signal Emission System Incorporating Such a Circuit A circuit for power amplification of an input signal includes an input stage and an output stage, the said input stage including: a drive means incorporating a so-called main drive transistor, and a first so-called main input transistor able to receive the input signal,... | 11/17/2011 |
| 20110273232 | DIFFERENTIAL AMPLIFIER CIRCUIT Provided is a differential amplifier circuit in which an offset voltage is independent from input voltages. A first correction current generation circuit and a second correction current generation circuit are provided and configured to cause the same current as a curren... | 11/10/2011 |
| 20110273231 | SEMICONDUCTOR INTEGRATED CIRCUIT A semiconductor integrated circuit receives an input current, and supplies, to a different circuit, an output current that corresponds to the input current. A first terminal of a first variable resistor is connected to an input terminal. A first transistor and a second ... | 11/10/2011 |
| 20110242145 | DISPLAY DEVICE, DIFFERENTIAL AMPLIFIER, AND DATA LINE DRIVE METHOD FOR DISPLAY DEVICE A display device is provided with a plurality of differential amplifiers associated with a plurality of data lines within a display panel. Each of the plurality of differential amplifiers includes: an output stage circuit including a first transistor having a source con... | 10/06/2011 |
| 20110234319 | DIFFERENTIAL AMPLIFIER CIRCUIT Provided is a differential amplifier circuit with a small circuit size. When a differential voltage (Vinp−Vinn) is higher than a predetermined voltage, a PMOS transistor (4) is turned ON. At this time, a current source (12) is connected in parallel to a ... | 09/29/2011 |
| 20110216258 | DIFFERENTIAL AMPLIFIER CIRCUIT, DISPLAY PANEL DRIVER, AND DISPLAY DEVICE A differential amplifying circuit includes first and second differential transistor pairs, first and second constant current sources, first and second current mirror circuits and first and second output transistors. The differential amplifying circuit also includes a fe... | 09/08/2011 |
| 20110181358 | DIFFERENTIAL AMPLIFIER CIRCUIT, OPERATIONAL AMPLIFIER INCLUDING DIFFERENCE AMPLIFIER CIRCUIT, AND VOLTAGE REGULATOR CIRCUIT A differential amplifier circuit includes a differential input stage comprising first and second transistors whose sources are connected with each other, a constant current source connected between the sources of the first and second transistors and a ground, a current ... | 07/28/2011 |
| 20110169808 | AMPLIFIER INCLUDING DITHERING SWITCH AND DISPLAY DRIVING CIRCUIT USING THE AMPLIFIER An amplifier and a display driving circuit. The amplifier includes an input stage, a bias stage and an output stage. The input stage determines voltage levels of two nodes in correspondence to two input voltages received in response to a first bias voltage, and includes... | 07/14/2011 |
| 20110163809 | PUSH-PULL OUTPUT CIRCUIT According to one embodiment, a first transistor is connected between a first power supply rail and an output unit. A second transistor is connected between the output unit and a second power supply rail. A gm amplifier includes an input unit and first and second output ... | 07/07/2011 |
| 20110148525 | CURRENT MIRROR WITH LOW HEADROOM AND LINEAR RESPONSE A current mirror circuit provided in an emitter follower configuration achieves linearly output over a range of input currents by operating in response to a bias current that is a replica of the input current. The current mirror may include a pair of transistors and a p... | 06/23/2011 |
| 20110140782 | Differential Gm-Boosting Circuit and Applications A fully-differential circuit includes a differential gm-boosting circuit and/or a differential output circuit. The use of differential gm-boosting and output circuits improves input common-mode and power-supply noise rejection relative to the prior art. The fully differ... | 06/16/2011 |
| 20110121902 | ENHANCING DUAL OP-AMPS FOR DIFFERENTIAL CONNECTIONS In an embodiment of the invention, a differential input signal is coupled to a plurality of transconductance blocks. In some embodiments, each of the transconductance blocks divide an input transconductance among a plurality of signal paths to a plurality of outputs in ... | 05/26/2011 |
| 20110102086 | INPUT COMMON MODE CIRCUIT A circuit provides a first current corresponding to the differential input Inn and Inp, and a second current corresponding to the common mode input Vcm. The circuit then mirrors the differential current and the common mode current to a third current and a fourth current... | 05/05/2011 |
| 20110025654 | DIFFERENTIAL AMPLIFIER CIRCUIT, DATA LINE DRIVER USING THE SAME, AND LIQUID CRYSTAL DISPLAY APPARATUS A differential amplifier circuit includes: an | 02/03/2011 |
| 20110025655 | OPERATIONAL AMPLIFIER AND SEMICONDUCTOR DEVICE USING THE SAME An operational amplifier is provide with: a first MOS transistor pair connected to a non-inverting input terminal and an inverting input terminal; an intermediate stage connected to the first MOS transistor pair connected to the first MOS transistor pair; a first output... | 02/03/2011 |
| 20110007058 | DIFFERENTIAL CLASS AB AMPLIFIER CIRCUIT, DRIVER CIRCUIT AND DISPLAY DEVICE A driver circuit of the present invention comprises a differential class AB amplifier circuit which comprises: a first differential amplifier circuit configured to amplify differential input signals and output a first signal in a first voltage range; a second differenti... | 01/13/2011 |
| 20100330938 | POWER DETECTOR A power detector comprises a pair of transistor amplifier elements having respective control terminals for receiving with opposite polarities a radio/mm-wave frequency signal whose power is to be detected. Respective alternately-conductive parallel amplifier paths are c... | 12/30/2010 |
| 20100308913 | OPERATIONAL AMPLIFIER An operational amplifier includes a first amplifier to which an input signal is applied, and a second amplifier to which an output of the first amplifier is applied, wherein the second amplifier includes a first transistor including a gate to which the output of the fir... | 12/09/2010 |
| 20100295618 | DIFFERENTIAL AMPLIFIER, REFERENCE VOLTAGE GENERATING CIRCUIT, DIFFERENTIAL AMPLIFYING METHOD, AND REFERENCE VOLTAGE GENERATING METHOD A differential amplifier includes a main differential amplifier circuit that receives a pair of input signals and supplies a pair of output signals based on a difference between the input signals; and a bias control differential amplifier circuit that receives the pair ... | 11/25/2010 |
| 20100277239 | CURRENT-MIRRORING SYSTEMS AND METHODS One embodiment of the invention includes a current-mirror system. The system includes a current-mirror circuit configured to conduct an input current through a first current path that includes a first degeneration resistance device and to generate an output current that... | 11/04/2010 |
| 20100264987 | AMPLIFIER WITH BIAS STABILIZER An amplifier with bias stabilizer includes first to forth transistors, an amplifier unit and a resistor. The first transistor and the second transistor are connected in series between first and second power supplies and generate a first current. The third transistor is ... | 10/21/2010 |
| 20100264986 | Class AB Amplifier Systems The present invention comprises class AB amplifier systems exhibiting low quiescent power, low-voltage operation, high gain, high bandwidth, low noise and low offset, and requiring a small die area. The amplifier systems use a differential first stage and a second stage... | 10/21/2010 |
| 20100253432 | SIGNAL PROCESSOR COMPRISING AN AMPLIFIER An amplifier (A1) within a signal processor comprises a pair of complementary differential pairs (DP1, DP2) in the sense that one differential pair comprises transistors having a polarity opposite to that of transistors in the other differential pai... | 10/07/2010 |
| 20100253433 | LOW PHASE NOISE AMPLIFIER CIRCUIT The amplifier circuit (1) includes a differential pair of PMOS transistors at input (P3, P4), whose source receives a current from a current source (3). The gate of the first transistor (P3) of the pair defines a non-inverting input (X... | 10/07/2010 |
| 20100231301 | AMPLIFIER CIRCUIT An amplifier circuit, comprising a differential input stage (M1, M2), two cross-coupled current mirrors (M3, M4; M5, M6) coupled to respective outputs of the differential input stage (M1, M2), and a minimum selecto... | 09/16/2010 |
| 20100182301 | Operational amplifier, semiconductor device, and display device An operational amplifier according to an exemplary aspect of the invention includes: a differential stage including a first differential transistor and a second differential transistor that serve as paired transistors; polarity switching units; and an offset adding unit... | 07/22/2010 |
| 20100176884 | TRANSCONDUCTANCE AMPLIFIER WITH IMPROVED LINEARITY The invention relates to a transconductance amplifier, intended to supply current variations di when it receives voltage variations dv, with a desired conversion coefficient Gm called transconductance: Gm=di/dv. The amplifier comprises a PM... | 07/15/2010 |
| 20100164626 | BOOST OPERATIONAL AMPLIFIER A boost operational amplifier. A boot operational amplifier may include a differential amplifying unit amplifying and/or outputting an inputted differential voltage, a first mirroring unit mirroring a current flowing through a first output terminal of a differential amp... | 07/01/2010 |
| 20100159853 | ELECTRONIC AMPLIFICATION DEVICE WITH CURRENT MIRROR FOR INTEGRATED POWER AMPLIFIERS The disclosure relates to an electronic differential amplification device integrated on a semiconductor chip. The device may include first and second transistors having respective source terminals connected to a first potential, and drain terminals to receive a first di... | 06/24/2010 |
| 20100148870 | ADAPTIVE FEEDBACK CASCODE A current minor for generating a substantially identical current flow in two parallel current paths, each current path comprising a switching device and each switching device comprising first and second active terminals and a control terminal for controlling current flo... | 06/17/2010 |
| 20100148871 | SYSTEMS AND METHODS FOR AN ADAPTIVE BIAS CIRCUIT FOR A DIFFERENTIAL POWER AMPLIFIER Systems and methods for providing an adaptive bias circuit that may include a differential amplifier, low-pass filter, and common source amplifier or common emitter amplifier. The adaptive bias circuit may generate an adaptive bias output signal depending on input signa... | 06/17/2010 |
| 20100097141 | Current Mirror With Low Headroom And Linear Response A current mirror circuit provided in an emitter follower configuration achieves linear output currents over a range of input currents by operating in response to a bias current that is a replica of the input current. The current mirror may include a pair of transistors ... | 04/22/2010 |
