Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Application No. | Application Title | Issue Date |
| 20120126895 | VARIABLE GAIN AMPLIFIER WITH FIXED BANDWIDTH Provided is a variable gain amplifier. The variable gain amplifier includes an operational amplifier, a variable feedback impedance unit, a variable compensation impedance unit, and a variable current source. The variable feedback impedance unit is connected between an ... | 05/24/2012 |
| 20120105156 | RECEIVER CIRCUIT OF SEMICONDUCTOR APPARATUS AND METHOD FOR RECEIVING SIGNAL A receiver circuit of a semiconductor apparatus includes a first sense amplifier, a level restriction unit, and a second sense amplifier. The first sense amplifier amplifies an input signal in response to a clock signal and generates a first signal with a voltage swing ... | 05/03/2012 |
| 20120038422 | SYMMETRICALLY OPERATING SINGLE-ENDED INPUT BUFFER DEVICES AND METHODS Embodiments are described including those pertaining to an input buffer having first and second complementary input terminals. One example buffer has a symmetrical response to a single input signal applied to the first input terminal by mimicking the transition of a sig... | 02/16/2012 |
| 20120038405 | DELAY LINES, AMPLIFIER SYSTEMS, TRANSCONDUCTANCE COMPENSATING SYSTEMS AND METHODS OF COMPENSATING Embodiments of delay lines may include a plurality of delay stages coupled to each other in series from a first stage to a last stage. Each delay stage may include an input transistor receiving a signal being delayed by the delay line. The delay line may include a compe... | 02/16/2012 |
| 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 |
| 20120018622 | DIFFERENTIAL AMPLIFIER WITH FUNCTION OF VARIABLE GAIN AND OPTICAL RECEIVER IMPLEMENTED WITH THE SAME A differential circuit with a function of a variable gain without shifting the output cross point is disclosed. The differential circuit includes an amplifying stage and a control stage. The amplifying stage includes three units each having a pair of transistors, a pair... | 01/26/2012 |
| 20120013404 | Method and Apparatus for Broadband Input Matching with Noise and Non-Linearity Cancellation in Power Amplifiers A CMOS differential power amplifier having broadband input matching with Noise and Non-linearity Cancellation. The broadband input match is realized by using two “Diode-Connected” NFETs (i.e., N-type Field Effect Transistors). Resulting noise degradation is reduced ... | 01/19/2012 |
| 20120001690 | System for Driver Amplifier In an embodiment, a circuit includes a two-stage amplifier and a feedback component. The two stage amplifier consists of an input stage biased at a first power supply voltage, and an output stage biased at a second power supply voltage. The second power supply voltage i... | 01/05/2012 |
| 20110291758 | DIFFERENTIAL COMPARATOR CIRCUIT HAVING A WIDE COMMON MODE INPUT RANGE In one embodiment of the invention, a circuit arrangement is provided. The circuit arrangement includes a plurality of differential amplifiers, coupled in parallel, including at least a first differential amplifier and a second differential amplifier. Each differential ... | 12/01/2011 |
| 20110260901 | Variable Gain Amplifier A variable gain amplifier includes an integrator having an input, an output and a feedback loop connected between the input and output, a plurality of input chains connected in parallel between the amplifier input and the input of the integrator, each input chain includ... | 10/27/2011 |
| 20110227649 | APPARATUS AND METHOD FOR VARIABLE GAIN TRANSCONDUCTANCE The present disclosure describes a variable gain transconductor having gain and/or linearity performance that are selectively controllable in operation. In one embodiment the gain and/or linearity performance are selectively controllable in response to the strength of a... | 09/22/2011 |
| 20110227650 | RECEIVED-LIGHT AMPLIFYING CIRCUIT AND OPTICAL DISC APPARATUS A received-light amplifying circuit includes: an amplifier AMP1 converting a current signal provided from a light-receiving element into a voltage signal; differential voltage amplifying circuits AMP2 and AMP3 each of which has a non-inverting input... | 09/22/2011 |
| 20110227651 | PROGRAMMABLE GAIN AMPLIFIER AND TRANSCONDUCTANCE COMPENSATION SYSTEM A programmable gain amplifier (PGA) system comprises selectable parallel transconductors in a front end, independently selectable serial amplification circuits in a back end. The back end is configured to receive an output of the front end and may include a plurality of... | 09/22/2011 |
| 20110210793 | VARIABLE GAIN AMPLIFIER HAVING AUTOMATIC POWER CONSUMPTION OPTIMIZATION A variable gain amplifier may include a master amplifier that may be configured to generate a first current and a diode coupled with the master amplifier so that the first current passes through the diode which, when the first current is passing through the diode, gener... | 09/01/2011 |
| 20110193632 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE Disclosed is a semiconductor integrated circuit device that includes a ring oscillator circuit, performs a proper oscillation operation, and expands the range of oscillation frequency variation. The ring oscillator circuit includes, for instance, plural differential amp... | 08/11/2011 |
| 20110181357 | GAIN CONTROL AMPLIFIER Systems, methods, and devices provided herein are directed to improvements in gain control amplifiers that receive an input signal and generate an output signal with a selectively variable gain. A differential amplified gain stage receives an input signal and scales the... | 07/28/2011 |
| 20110148524 | RADIO FREQUENCY BUFFER Systems, methods, and devices for receiving a differential input signal and generating a non-differential output signal are described herein. For example, an RF buffer is described that includes first and second transistor elements. The first transistor element receives... | 06/23/2011 |
| 20110140945 | GAIN CIRCUIT A gain circuit comprises a main amplification unit and a first refresh unit. The main amplification unit comprises an amplifier, a first capacitor connected between a first input terminal of the gain circuit and a first input terminal of the amplifier, and a second capa... | 06/16/2011 |
| 20110133837 | VARIABLE GAIN AMPLIFIER A gain variable range of a variable gain amplifier is increase and a non-linear distortion is reduced at the same time. The variable gain amplifier includes an operational amplifier, a variable resistive circuit which includes a plurality of variable resistive elements ... | 06/09/2011 |
| 20110121900 | METHOD AND SYSTEM FOR IMPROVING LIMITING AMPLIFIER PHASE NOISE FOR LOW SLEW-RATE INPUT SIGNALS Apparatus and method for a limiting amplifier with improved phase noise. The improved limiting amplifier includes an input port, an output port, and one or more cascaded gain stages. The input of a first gain stage is connected to the input port of the limiting amplifie... | 05/26/2011 |
| 20110121901 | Constant gain amplifier system with gain control feedback Constant and accurate signal gain systems based on controlling signal amplifier gain level by applying the signal amplifier output signal to a signal level divider with a set ratio. The output signal of the signal level divider is applied to one input of the gain contro... | 05/26/2011 |
| 20110095823 | INCREMENTAL GAIN AMPLIFIER An amplifier includes an amplifier section having selectable signal paths to provide discrete gain settings, and logic to incrementally select the signal paths. The logic may be configured to increment the gain in response to digital gain control signals or an analog ga... | 04/28/2011 |
| 20110095822 | VARIABLE-GAIN LOW NOISE AMPLIFIER A highly linear variable-gain low noise amplifier is a cascode amplifier. The cascode amplifier includes a gain control circuit, a load circuit, a current steering circuit and an input circuit. The gain control circuit is used for receiving a gain adjusting voltage, the... | 04/28/2011 |
| 20110084762 | Envelope Detector for High Speed Applications An envelope detecting circuit is provided. The envelope detecting circuit comprises a source degeneration circuit that amplifies an input differential signal, a differential gain stage that supplies a voltage proportional to the amplified signal, a potential hold circui... | 04/14/2011 |
| 20110084763 | DB-LINEAR PROCESS-INDEPENDENT VARIABLE GAIN AMPLIFIER An amplifier is provided with continuously-variable analog control that exhibits a highly linear gain control curve in db/volts, while preserving high dynamic range, low third order distortion, and low noise. This amplifier has a control mechanism that preserves a varie... | 04/14/2011 |
| 20110074510 | SYMMETRICALLY OPERATING SINGLE-ENDED INPUT BUFFER DEVICES AND METHODS Embodiments are described including those pertaining to an input buffer having first and second complementary input terminals. One such input buffer has a symmetrical response to a single input signal applied to the first input terminal by mimicking the transition of a ... | 03/31/2011 |
| 20110063031 | DRIVING APPARATUS AND DRIVING METHOD THEREOF A driving apparatus and a driving method thereof are provided. The driving apparatus includes a digital to analog converter and a signal amplifier. The digital to analog converter is used for receiving a digital data and converting the digital data to an analog signal. ... | 03/17/2011 |
| 20110063030 | CMOS VARIABLE GAIN AMPLIFIER A complementary metal-oxide semiconductor (CMOS) variable gain amplifier includes: a cascode amplifier including a common source field effect transistor and a common gate field effect transistor in a cascode structure; a first current generation unit connected in parall... | 03/17/2011 |
| 20110001562 | HIGH SPEED LINEAR DIFFERENTIAL AMPLIFIER A high speed linear differential amplifier (HSLDA) having automatic gain adjustment to maximize linearity regardless of manufacturing process, changes in temperature, or swing width change of the input signal. The HSLDA comprises a differential amplifier, and a control ... | 01/06/2011 |
| 20100321067 | Programmable Gain Amplifier A programmable gain amplifier comprising alternatively selectable parallel circuits in a front end and independently selectable serial amplification circuits in a back end. The front end may include, for example, a plurality of transconductors in parallel and each confi... | 12/23/2010 |
| 20100315164 | Constant-Bandwidth Variable Gain Amplifier The performance of an AGC loop typically depends on several factors, including gain linearity of the VGA and variation in the VGA bandwidth over the range of available gain settings. Although a resistively degenerated VGA provides for excellent gain linearity and immuni... | 12/16/2010 |
| 20100301941 | Receiver Disclosed herein is a receiver, including: an amplifier for amplifying a received signal; a strain compensator for having a function of compensating for a strain generated in an output signal from the amplifier in accordance with a stain compensation amount which is con... | 12/02/2010 |
| 20100301940 | NEGATIVE CAPACITANCE SYNTHESIS FOR USE WITH DIFFERENTIAL CIRCUITS Provided herein are methods and circuits that reduce a differential capacitance at differential nodes of a differential circuit while boosting the common mode capacitance at the differential nodes, where the differential circuit includes a pair of inputs and differentia... | 12/02/2010 |
| 20100291890 | RECEIVER A receiver including an amplifier module, a control unit, a mixer and an IF amplifier is provided. The amplifier module, including multiple amplifier units with different gains, amplifies an input signal. The control unit enables at least one of the amplifier units acco... | 11/18/2010 |
| 20100289583 | VARIABLE GAIN RF AMPLIFIER A variable gain amplifier having an input node, a variable current source including a control input coupled to the input node, first and second branches coupled in parallel between a first supply terminal and the variable current source, the first and second branches de... | 11/18/2010 |
| 20100283542 | Linear transimpedance amplifier with wide dynamic range for high rate applications Various amplifier configurations having increased bandwidth, linearity, dynamic range, and less distortion are shown and disclosed. To increase bandwidth in a transimpedance amplifier, a replica circuit is created to replicate a degeneration resistance, or the resistanc... | 11/11/2010 |
| 20100283543 | Variable gain amplifier Various amplifier configurations having increased bandwidth, linearity, dynamic range, and less distortion are shown and disclosed. To increase bandwidth in a transimpedance amplifier, a replica circuit is created to replicate a degeneration resistance, or the resistanc... | 11/11/2010 |
| 20100277235 | Gain Control Methods and Systems in an Amplifier Assembly A Variable Gain Amplifier (VGA) amplifies an input signal according to a gain, to produce an amplified signal. A detector module detects a power indicative of a power of the amplified signal. A comparator module compares the detected power to a high threshold, a low thr... | 11/04/2010 |
| 20100237943 | Auto gain controllers, and communication terminals having the same An auto gain controller is provided. The auto gain controller includes a variable gain amplification unit configured to receive differential input signals, adjust an amplification gain based on an auto gain control voltage and output differential output signals. The aut... | 09/23/2010 |
| 20100231299 | AUTOMATIC GAIN CONTROL A method and system for providing automatic gain control for a differential amplifier are provided. An impedance network is set to have a first impedance that corresponds to a first gain for a differential amplifier, which amplifies an input signal by the first gain. On... | 09/16/2010 |
