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| Application No. | Application Title | Issue Date |
| 20120068770 | ANTI-GLITCH SYSTEM FOR AUDIO AMPLIFIER An audio amplification circuit comprises an amplifier having an input and an output, as well as an audio output to which a load can be connected. It additionally comprises a first driver stage having an input and an output which is not coupled to the audio output, and a... | 03/22/2012 |
| 20120068769 | HIGH-FREQUENCY DIFFERENTIAL AMPLIFIER CIRCUIT There is provided a high-frequency differential amplifier circuit comprising: a first MOS transistor, a second MOS transistor, a first positive feedback element and a second positive feedback element. The first MOS transistor and the second MOS transistor each has a sou... | 03/22/2012 |
| 20120049959 | HIGH POWER-SUPPLY REJECTION RATIO AMPLIFYING CIRCUIT The embodiments of the present invention disclose a high power-supply rejection ratio (PSRR) amplifier circuit. The amplifier circuit comprises a low dropout regulator, a negative charge pump and an amplifier. The output voltages of the negative charge pump and the low ... | 03/01/2012 |
| 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 |
| 20120019323 | CURRENT-MODE AMPLIFIER A current-mode amplifier including an input stage, a feedback circuit and an output stage is provided. The input stage has an input terminal for receiving an input current of the current-mode amplifier. The input stage generates a corresponding inner current in accordan... | 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 |
| 20110298644 | SWITCHED-CAPACITOR AMPLIFIER AND ANALOG FRONT-END CIRCUIT In a first period, a first and a second feedback capacitors each store an electric charge dependent on a voltage level of an input signal. In a second period, a first and a second output voltages are fed back respectively through the first and the second feedback capaci... | 12/08/2011 |
| 20110275330 | SYSTEM AND METHOD FOR POWER AMPLIFIER OVER-VOLTAGE PROTECTION A system for power amplifier over-voltage protection includes a power amplifier configured to receive a system voltage, a bias circuit configured to provide a bias signal to the power amplifier, and a power amplifier over-voltage circuit configured to interrupt the bias... | 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 |
| 20110267144 | NOISE-CANCELING FOR DIFFERENTIAL AMPLIFIERS REQUIRING NO EXTERNAL MATCHING A differential Low Noise Amplifier (LNA) includes a first stage of resistive feedback amplifiers and second stage of complementary amplifiers, where the outputs of the first stage are coupled to the inputs of the second stage in a cross-coupled fashion. An inductive loa... | 11/03/2011 |
| 20110260795 | METHOD FOR REDUCING OFFSET VOLTAGE OF OPERATIONAL AMPLIFIER AND THE CIRCUIT USING THE SAME The invention provides an operational amplifier. In one embodiment, the operational amplifier includes an input stage circuit, a feedback circuit, a fixed stage circuit, and an output stage circuit. The input stage circuit receives a positive input voltage and a negativ... | 10/27/2011 |
| 20110241780 | AMPLIFIER CIRCUIT, SIGNAL PROCESSOR CIRCUIT, AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE An amplifier circuit is provided to be switchable between a single end output configuration and a differential output configuration without increasing a circuit area. When first and fourth switches are turned off and a second switch is turned on, a load circuit function... | 10/06/2011 |
| 20110227652 | Differential Amplifier and Method for the Operation of a Differential Amplifier A differential amplifier comprises a first amplifier (A1) with a signal input (Inp) and a signal output (Out1) that is fed back to a first feedback input (In1) of the first amplifier (A1) and is also connected to a first output (outp) of the ... | 09/22/2011 |
| 20110215870 | BURST MODE AMPLIFIER An integrator circuit cancels a DC offset component related to an average DC value of a burst mode input signal from the output of an amplifier. The integrator circuit outputs an average DC value of the input signal in a response time that is shorter than the preamble o... | 09/08/2011 |
| 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 |
| 20110210794 | VOLTAGE SENSING CIRCUIT CAPABLE OF CONTROLLING A PUMP VOLTAGE STABLY GENERATED IN A LOW VOLTAGE ENVIRONMENT Herein, a voltage sensing circuit, which is capable of controlling a pumping voltage to be stably generated in a low voltage environment, is provided. The voltage sensing circuit includes a current mirror having first and second terminals, a first switching element conf... | 09/01/2011 |
| 20110205098 | SWITCHED CAPACITOR AMPLIFIER A switched capacitor amplifier having an amplification unit adapted to amplify a differential signal; a first switched capacitor block including a first plurality of capacitors operable to sample a first differential input signal during a first sampling phase and to dri... | 08/25/2011 |
| 20110193633 | BIOAMPLIFIER FOR NEURAL INTERFACES A bioamplifier that includes a high pass filter, open-loop amplifier, and low pass filter in an area efficient design that can be used in implantable neural interfaces. The high pass filter can be implemented by using a switch-capacitance resistor coupled with parasitic... | 08/11/2011 |
| 20110181271 | PEAKING CIRCUIT, PEAKING CIRCUIT CONTROL METHOD, WAVEFORM MEASUREMENT APPARATUS, AND INFORMATION PROCESSING APPARATUS A peaking circuit according to the present invention includes amplifiers connected in multiple stages and feedback circuits for feedback to an input from two or more output points with different gains as seen from the input. The peaking circuit is configured to be able ... | 07/28/2011 |
| 20110169568 | OPERATIONAL AMPLIFIER The present invention relates generally to an operational amplifier. In one embodiment, the present invention is an operational amplifier including a transimpedance input stage, the transimpedance input stage including a first stage connected to a first resistor and a s... | 07/14/2011 |
| 20110169569 | Device and method for eliminating feedback common mode signals A device and a method for eliminating feedback common mode signals are provided, which belong to the electronic technology field. The device includes an operational amplifier circuit with two output ends. The two output ends are a first output end and a second output en... | 07/14/2011 |
| 20110158435 | AUDIO SIGNAL AMPLIFIER CIRCUIT An inverting amplifier which drives headphones via an output capacitor includes: an operational amplifier, an input resistor having a first terminal via which an audio signal to be amplified is received, and a second terminal connected to an inverting input terminal of ... | 06/30/2011 |
| 20110109389 | AMPLIFIER CIRCUIT, INTEGRATED CIRCUIT AND RADIO FREQUENCY COMMUNICATION UNIT An amplifier circuit for amplifying a differential input signal includes a first feedback resistance, a second feedback resistance, first transconductance circuitry, and second transconductance circuitry. The first feedback resistance is connected between a first input ... | 05/12/2011 |
| 20110109388 | DIFFERENTIAL RF AMPLIFIER An RF amplifier including first and second branches coupled in parallel between first and second supply voltage terminals, and a differential pair including first and second transistors each having first and second main current terminals, the second main current termina... | 05/12/2011 |
| 20110084764 | AMPLIFIER AND SIGNAL FILTER A signal filter circuit, an amplifier circuit, combinations thereof and methods for configuring and using the same are provided. Embodiments of the amplifier circuit may provide precise reproduction and amplification of input signals. The amplifier may be built entirely... | 04/14/2011 |
| 20110063029 | SEMICONDUCTOR INTEGRATED CIRCUIT A semiconductor integrated circuit includes a first input terminal configured to input a first input voltage, a second input terminal configured to input a second input voltage, a differential amplifier configured to generate a differential output voltage by amplifying ... | 03/17/2011 |
| 20110028089 | Amplifying circuit, semiconductor integrated circuit, wireless transmission system, and communication apparatus An amplifying circuit includes: an amplifying cell portion configured by cascade-connecting a plurality stage of amplifying cells each including a pair of N-type transistors differentially connected to each other, load resistors and a current source for generating an op... | 02/03/2011 |
| 20110026347 | Differential Sense Amplifier A differential sense amplifier can perform data sensing using a very low supply voltage.... | 02/03/2011 |
| 20110025417 | Signal Processing Circuit A signal processing circuit includes a differential input circuit, a first DC filter, a second DC filter, a differential transconductance circuit, and a differential converting circuit. The differential input circuit includes first and second input circuits respectively... | 02/03/2011 |
| 20110018633 | OPERATIONAL AMPLIFIER HAVING DC OFFSET CANCELLATION CAPABILITY An operational amplifier includes an input stage for generating a first differential output signal pair according to a first differential input signal pair, an output stage for generating a second differential output signal pair according to at least a second differenti... | 01/27/2011 |
| 20100315165 | Broadband high output current output stage A broadband high output current output stage includes at least one first differential pair for enhancing the bandwidth. A second differential pair is further disposed in the circuit. The second differential pair is coupled to one of the first differential pair, such tha... | 12/16/2010 |
| 20100289584 | TRANSIMPEDANCE AMPLIFIER WITH DISTRIBUTED CONTROL OF FEEDBACK LINE An apparatus includes an electronic amplifier and an electrical feedback line, a plurality of electrical sources, and an electronic controller. The electrical feedback line connects an output of the electronic amplifier to an input thereof. The electrical sources connec... | 11/18/2010 |
| 20100271129 | Output circuit using analog amplifier An output circuit includes an analog amplifier circuit including a differential amplifier stage configured to receive an input voltage, and first to nth output systems (n is a natural number more than 1); first to nth output nodes; an output pad; a... | 10/28/2010 |
| 20100264896 | Voltage regulator circuit It is desired for semiconductor devices to reduce an inrush current and an overshoot. According to the voltage regulator circuit of the present invention, when a power supply is turned on, a switch SW1 is turned on in response to a control signal CTR1, a s... | 10/21/2010 |
| 20100253431 | NON-INVERTING AMPLIFIER CIRCUIT, SEMICONDUCTOR INTEGRATED CIRCUIT, AND PHASE COMPENSATION METHOD OF NON-INVERTING AMPLIFIER CIRCUIT A circuit includes a differential amplifier unit that receives an input signal at a non-inverting input thereof, a constant current source, a load circuit, an output transistor that receives an output of the differential amplifier unit as an input and drives a load circ... | 10/07/2010 |
| 20100244961 | DIFFERENTIAL AMPLIFIER A differential amplifier unit and a feedback unit are provided The differential amplifier unit includes first and second transistors and first to fourth loads. Each of the first and second transistors is provided with a current input end, a current output end connected ... | 09/30/2010 |
| 20100231302 | AMPLIFICATION CIRCUIT An amplification circuit includes a semiconductor amplification element, a current feedback circuit that is connected to a terminal close to a ground side of the semiconductor amplification element and can control gain reduction, and a voltage feedback circuit that is c... | 09/16/2010 |
| 20100182088 | OPERATIONAL AMPLIFIER An operational amplifier has an input stage that branches a first current according to first and second input signals. An output stage generates an output signal from a second current and one of the branch currents in the input stage. A first transistor supplies the fir... | 07/22/2010 |
| 20100172441 | FREQUENCY TRANSLATION MODULE FREQUENCY LIMITING AMPLIFIER A system for processing signal communications between a frequency translation module and an integrated receiver decoder. According to an exemplary embodiment, the decoder and the frequency translation module comprise a signal processing apparatus comprising an input for... | 07/08/2010 |
