Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8183932 | Method and system for processing signals via an integrated low noise amplifier having configurable input signaling mode Aspects of a method and system for processing signals via an integrated low noise amplifier having a configurable input signaling mode are provided. In this regard, one or more circuits comprising an integrated amplifier may be configurable such that, in a first con... | 05/22/2012 |
| 8154347 | Audio processing circuit and preamplifier circuit An audio processing circuit is provided, receiving a microphone signal from a microphone to output a differential signal. A preamplifier receives the microphone signal to output a first preamplified voltage and a second preamplified voltage. A gain stage receives th... | 04/10/2012 |
| 8115555 | Balun function with reference enhancement in single-ended port Systems and methods are provided for a transformer or balun function with reference enhancement. The systems and methods may include a transformer having at least a primary winding and a secondary winding for reference enhancement, where the primary winding includes... | 02/14/2012 |
| 8044721 | Low noise amplifier A low noise amplifier including an amplifier kernel circuit and a DC bias unit is provided. The amplifier kernel circuit is used for receiving a single input signal or a differential input signal so as to output a differential output signal. The DC bias unit is coup... | 10/25/2011 |
| 8031004 | Active balun with stacked structure An active balun with a stacked structure includes: a first amplification unit including a first transistor having a first terminal connected with a first input terminal, a second terminal connected with a power voltage terminal, and a third terminal connected with a... | 10/04/2011 |
| 7994865 | Even order distortion cancellation in single-ended input, differential output amplifiers using feedback An amplifier and a method for converting a single ended signal to an amplified differential signal. The amplifier comprises an input configured to receive a single ended signal, a differential amplifier that outputs an amplified differential signal based on the sing... | 08/09/2011 |
| 7990222 | Converter with parallel coupled differential input pairs A circuit for converting first and second differential input signals into an output signal is provided with a first differential input stage comprising first and second inputs for receiving the first differential input signal and comprising first and second outputs ... | 08/02/2011 |
| 7948322 | Balun amplifier A balun amplifier is provided, which includes two input terminals, two output terminals and two modules. The first and the second input terminals receive a single-ended input signal, respectively. The first and the second output terminals provide a differential outp... | 05/24/2011 |
| 7944310 | Active balun circuit An active balun circuit is provided, which includes an input end, a first and a second output ends, a first and a second transistors, a feedback capacitor, and a current source. The input end receives an input signal. A drain of the first transistor is coupled to th... | 05/17/2011 |
| 7884673 | Wideband low-noise amplifier A wideband low-noise amplifier includes a source-degenerated common-source amplifier, a common-gate amplifier, and a matching frequency band determiner. The source-degenerated common-source amplifier is configured to amplify an input signal to output a first signal ... | 02/08/2011 |
| 7868697 | Converting circuit for converting differential signal to single-ended signal A converting circuit for converting differential signals to a single-ended signal. The converting circuit comprises a cascode amplifier comprising a first transistor and a second transistor, wherein the first transistor comprises a control terminal, a first terminal... | 01/11/2011 |
| 7863986 | Techniques for improving balun loaded-Q Techniques for improving the quality factor (“Q”) of a balun in the presence of loading stages are disclosed. In an exemplary embodiment, the ground node of a balun secondary (single-ended) element is connected to a source node of an amplifier stage via a common... | 01/04/2011 |
| 7843272 | Low noise amplifier A low noise amplifier having a wide operating frequency band and a high dynamic range is provided. A transformer having a secondary winding connected between an input terminal to which an input signal is applied and a positive differential output terminal, and a pri... | 11/30/2010 |
| 7839219 | Low-noise amplifier circuit including band-stop filter A low-noise amplifier circuit includes a MOS transistor in a common gate amplifier configuration. A single-ended input is at a source of the MOS transistor. A resonant cavity filter circuit is coupled to a gate of the MOS transistor. ... | 11/23/2010 |
| 7834703 | Amplifier with single-ended input and differential output An amplifier provided according to an aspect of the present invention includes a set of passive impedances forming a tuned load to a gain stage and also to provide a 180 degrees phase shifted signal of a gain signal received from the gain stage. The output of the ga... | 11/16/2010 |
| 7812675 | Receiver comprising an amplifier The invention relates to a receiver (1) comprising an amplifier (31-34) for amplifying an antenna signal, which amplifier (31-34) comprises an amplifier input (11a) and an amplifier output (12a,12... | 10/12/2010 |
| 7800449 | Single-ended-to-differential converter with common-mode voltage control Provided is a circuit to perform single-ended to differential conversion while providing common-mode voltage control. The circuit includes a converter to convert a single-ended signal to a differential signal and a stabilizing circuit adapted to receive the differen... | 09/21/2010 |
| 7782142 | High speed differential to single ended converting circuit A differential to single ended converting circuit includes a transconductance circuit having input terminals for receiving differential input voltages and having a first current output terminal for outputting a first current and a second current output terminal for ... | 08/24/2010 |
| 7777575 | Circuit with single-ended input and differential output An inverting stage is coupled between a single-ended in-put node and a first differential output node, and a non-inverting stage is coupled between the single-ended input node and a second differential output node. The inverting stage includes at least one transisto... | 08/17/2010 |
| 7760028 | Transformer circuit A BALUN circuit (20) for low voltage operation for receiving single ended input signal at an input terminal (24) and providing a differential output signal across a pair of output terminals (OUT+, OUT−) is disclosed. The BALUN circuit (20) com... | 07/20/2010 |
| 7746176 | Receiver comprising an amplifier The invention relates to a receiver (1) comprising an amplifier (31-34) for amplifying an antenna signal, which amplifier (31-34) comprises an amplifier input (11a) and an amplifier output (12a, 12 | 06/29/2010 |
| 7737786 | Broadband reciprocal active balun structure The present invention relates to the field of electronic devices known as baluns. It concerns an active balun which is broadband and reciprocal. Embodiments of the invention integrate an active splitter balun with an active combiner balun so as to form three transmi... | 06/15/2010 |
| 7728673 | Wideband active balun using darlington pair An active balun with Darlington pairs obtains a wideband operation. With differential output signals, a size of the active balun is minimized. The present invention can be applied to a transceiver. With a wideband amplitude match and 180° out of phase, the performa... | 06/01/2010 |
| 7705683 | Method and system for processing signals via an integrated low noise amplifier having configurable input signaling mode Aspects of a method and system for processing signals via an integrated low noise amplifier having a configurable input signaling mode are provided. For an unbalanced input signal, a first input terminal of the LNA may be communicatively coupled to ground via an ind... | 04/27/2010 |
| 7692493 | High-efficiency single to differential amplifier A high-efficiency single-to-differential amplifier has a first transistor acting as a first amplification stage. A second transistor, a third transistor, a first choke, a second choke, and a first capacitor form a second single-to-differential amplification stage. T... | 04/06/2010 |
| 7688147 | Floating differential amplifier architectures A method and system to use floating differential output amplifiers wired in series and parallel to achieve arbitrary output drive voltage and current for the applications load. One embodiment includes the use of multiple differential amplifiers wired in series to ge... | 03/30/2010 |
| 7688146 | Single-ended input to differential-ended output low noise amplifier A single-ended input to differential-ended output amplifier circuit comprises an amplifier for amplifying an input signal into an amplified signal comprises an input for receiving the input signal; and a first input and a single-ended input to differential-ended out... | 03/30/2010 |
| 7671686 | Low noise amplifier A low-noise amplifier circuit to convert a single-ended input into a dual-ended output includes an input transconductance stage circuit, including a first MOS transistor coupled in parallel with a second MOS transistor; a current buffer circuit, including a third MO... | 03/02/2010 |
| 7671685 | Method and system for a low power fully differential noise cancelling low noise amplifier Aspects of a method and system for a low power fully differential noise canceling low noise amplifier (NC LNA) are provided. The NC LNA may receive signals via a single ended input and may generate an amplified symmetric differential output from the received signals... | 03/02/2010 |
| 7663443 | Active balun circuit There is provided an active balun circuit including: a load circuit unit including a first and a second load; a differential amplifying unit including a first amplifying unit connected to the first load, and a second amplifying unit connected to the second load and ... | 02/16/2010 |
| 7646250 | Signal converter having compensation unit A signal converter includes a signal converting unit and a compensation unit. The signal converting unit generates intermediate differential signals at intermediate nodes in response to a single-ended signal. The compensation unit generates compensated differential ... | 01/12/2010 |
| 7642858 | Active baluns Example embodiments of the invention may provide for active baluns. An example active balun may include a resonator that may convert a single-ended input signal to at least two differential input signals, and a differential switching block that includes first and se... | 01/05/2010 |
| 7626461 | Transconductance stage arrangement The present invention relates to a voltage-to-current transconductance stage arrangement comprising a single-ended input, an emitter-coupled pair of transistors, comprising a first transistor and a second transistor, the emitter of a third transistor, being connecte... | 12/01/2009 |
| 7595697 | Wireless transmitter A magnetic field tolerant amplifier having an amplifier stage, a differential to single-ended output amplifier stage and a first and second delay line. In another embodiment the invention relates to a magnetic gradient cancellation delay line including two coils con... | 09/29/2009 |
| 7592872 | Differential amplifier with single ended output Various embodiments for converting a differential signal to a single ended signal are disclosed. The embodiments comprise a transistor pair for receiving a differential signal; and a tank circuit coupled to the transistor pair. The tank circuit includes a first indu... | 09/22/2009 |
| 7538618 | Wideband active balun circuit based on differential amplifier Provided is a wideband active balun circuit based on a differential amplifier. The active balun circuit is configured to compensate for unbalance between two differential signals and can be applied to wideband systems, such as software defined radio (SDR) systems or... | 05/26/2009 |
| 7525390 | Circuit for converting a differential signal into a non-differential signal, and RF transmitter comprising such a circuit A circuit for converting a differential signal into a nondifferential signal comprising first and second inputs respectively receiving first and second components of a differential signal. The circuit comprises a single bipolar transistor having an emitter, a base a... | 04/28/2009 |
| 7504888 | Internally compensated differential amplifier The invention relates to a differential amplifier with internal compensation. The invention also relates to a regulator controller and a regulator which includes such an amplifier. The amplifier includes a preamplifier circuit and a gain circuit. The frequency respo... | 03/17/2009 |
| 7471156 | Amplifier containing programmable impedance for harmonic termination An apparatus and method for eliminating unwanted signal power dissipation in balanced amplifier circuits and for prohibiting unwanted signal power from appearing at the balanced amplifier load is presented. Load impedances to the amplifier power output transistors a... | 12/30/2008 |
| 7468634 | Apparatus for converting single-ended signal into differential signal The present invention discloses a single-ended input/differential output amplifier includes a first bonding wire, a transduction gain circuit coupled to the first bonding wire for receiving an input voltage, a gain control circuit coupled to the transduction gain, a... | 12/23/2008 |
