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| Number | Title | Issue Date |
| 7365606 | Receiving amplifier, in particular for television receivers, and use of the receiving amplifier A receiving amplifier includes a semiconductor body with a first node, a second node and an amplifier circuit. The amplifier includes at least one field-effect transistor, a first input, and a second input. A capacitive element is arranged between the inputs of the ... | 04/29/2008 |
| 7365597 | Switched capacitor amplifier with higher gain and improved closed-loop gain accuracy A switched capacitor CMOS amplifier uses a first stage non-inverting CMOS amplifier driving a second stage inverting CMOS amplifier. The first stage amplifier is provided with positive feedback to substantially increase the gain of the first stage amplifier. In the ... | 04/29/2008 |
| 7321735 | Optical down-converter using universal frequency translation technology A method and system for converting an optical signal to electrical information signals, including demodulated baseband information signals and modulated baseband signals at multiple harmonics. In an embodiment, the optical information signal is amplitude modulated w... | 01/22/2008 |
| 7295826 | Integrated frequency translation and selectivity with gain control functionality, and applications thereof Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering... | 11/13/2007 |
| 7292835 | Wireless and wired cable modem applications of universal frequency translation technology Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and fil... | 11/06/2007 |
| 7280200 | Detection of a wafer edge using collimated light A system and method of inspecting a semiconductor wafer that may be employed to detect and to characterize defects occurring on an edge of the wafer. The wafer inspection system includes an optical module for providing a light source to scan the wafer edge, a light ... | 10/09/2007 |
| 7279940 | Switched-capacitor circuit with time-shifted switching scheme A switched-capacitor circuit for sampling a pair of differential input signals includes a first bootstrapped switch and a first non-boosted switch connected in parallel between a first output terminal of an amplifier and a first feedback node of the switched-capacit... | 10/09/2007 |
| 7253664 | Reference voltage driving circuit with a compensating circuit and a compensating method of the same A compensating circuit for calibrating reference voltage, which is coupled to an operation amplifier having an input end and an output end within a reference voltage driving circuit, is provided in the present invention. The compensating circuit comprises a first ca... | 08/07/2007 |
| 7239196 | Filter circuit An R-2R resistor circuit network 12 used in a filter circuit according to the present invention has a path through which each branch current flows to a next integrating capacitor and a path through which each branch current flows to a low impedance analog mid... | 07/03/2007 |
| 7209792 | RF-energy modulation system through dynamic coil detuning An RF-energy modulation system dynamically adjusts tuned receiving circuits within a plurality of slave devices, thereby regulating the level of power reception in each slave device. The slave devices receive power from a single master device, through coupling of a ... | 04/24/2007 |
| 7183880 | Discrete inductor bank and LC filter A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first ... | 02/27/2007 |
| 7177895 | Linear channel select filter A linear channel select filter for an Intermediate Frequency selector of a satellite broadcasting tuner, linearly changes a desired frequency by adjusting an output current, and includes: a transconductance (GM) current cell controller for determining a control volt... | 02/13/2007 |
| 7147514 | Connector providing capacitive coupling A connector provides capacitive coupling between circuit devices such as printed circuitboards and integrated circuits. The connector includes at least a first contact that contacts a conductor of the first circuit device, a second contact that contacts a conductor ... | 12/12/2006 |
| 7142036 | Amplifier compensation techniques for switched capacitor circuits A system and method are used to maintain a variance in feedback factors of an amplifier between the first and second phases either below a threshold value or within a specified range. The system includes the amplifier and first through third capacitances. The amplif... | 11/28/2006 |
| 7132880 | High bandwidth, high PSRR, low dropout voltage regulator A voltage regulator may include one or more features for generating high PSRR. For example, source follower devices may be included in the voltage regulator for providing current sources for the output voltage nodes. The source followers may be sensitive to power su... | 11/07/2006 |
| 7113028 | Method and arrangement for calibrating an active filter The invention relates to a calibration method and a calibration arrangement for an active filter intended to be used especially in portable radio apparatus. The filter (100) according to the invention is an active RC filter and it is integrated except for one... | 09/26/2006 |
| 7110444 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 09/19/2006 |
| 7110435 | Spread spectrum applications of universal frequency translation Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified up-conversion and spreading, RAKE receivers utilizing unified down-conversion an... | 09/19/2006 |
| 7095350 | DA converter circuit provided with DA converter of segment switched capacitor type A DA converter circuit is provided for use in a ΔΣ AD modulator. The DA converter circuit includes a DA converter of segment switched capacitor type. The DA converter includes an operational amplifier, capacitors as connected in parallel to each other to supply el... | 08/22/2006 |
| 7082171 | Phase shifting applications of universal frequency translation A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT modul... | 07/25/2006 |
| 7072390 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 07/04/2006 |
| 7057452 | Method and circuit for correcting the offset of an amplification chain A circuit for correcting the offset of an amplification and filtering chain having a predetermined gain and cut-off frequency depending on the value of at least one capacitor, comprising: a correction means for subtracting from the chain input a correction signal de... | 06/06/2006 |
| 7054296 | Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, ... | 05/30/2006 |
| 7039536 | Method and apparatus for analyzing a source current waveform in a semiconductor integrated circuit The invention provides a method of analyzing a source current at a higher speed and an enhanced accuracy in a semiconductor integrated circuit including a digital circuit. The method to analyze a waveform of the source current, with consideration of re-distribution ... | 05/02/2006 |
| 7039372 | Method and system for frequency up-conversion with modulation embodiments A method and system is described wherein an information signals is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In ... | 05/02/2006 |
| 7027786 | Carrier and clock recovery using universal frequency translation Coherent detection of a received EM signal using universal frequency translation (UFT) is described herein. The received EM signal is sampled according to a sub-harmonic LO signal, where the LO signal is in frequency and phase coherence with the received EM signal. ... | 04/11/2006 |
| 7015747 | Device for controlling a frequency response by scaling an impedance Provided is a device for controlling a frequency response by scaling an impedance. The device includes a filter and a duty ratio controller. The filter generates an output signal after removing a frequency from an input signal, and comprises a first impedance compon... | 03/21/2006 |
| 7015742 | Switched capacitor circuit capable of eliminating clock feedthrough by complementary control signals for digital tuning VCO A differential switched capacitor circuit for use in a voltage controlled oscillator (VCO) capable of eliminating clock feedthrough and preventing an unwanted momentary frequency shift and drift in the VCO output frequency when the switched capacitor circuit is shut... | 03/21/2006 |
| 7010286 | Apparatus, system, and method for down-converting and up-converting electromagnetic signals Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive o... | 03/07/2006 |
| 7006805 | Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service A receiver having multi-mode and multi-band functionality and capabilities is described herein. The receiver is capable of selectively operating over a plurality of bands and channels. The receiver operates in a plurality of modes, including but not limited to a sin... | 02/28/2006 |
| 6977976 | Complex filtering/AGC radio receiver architecture for low-IF or zero-IF A low power IF strip architecture suitable for Zero-IF (ZIF) or low-IF (LIF) radio receivers for filtering and amplifying a received signal. The apparatus includes a plurality of sequentially connected complex filter/amplifier stages. Each stage includes a complex f... | 12/20/2005 |
| 6977541 | Variable time constant circuit and filter circuit using the same A variable time constant circuit includes an inverting amplifier which has an amplifier input terminal and an amplifier output terminal connected to a signal output terminal and inverts a signal inputted to the amplifier input terminal, a first and a second resistor... | 12/20/2005 |
| 6956519 | Switched capacitor circuit of a pipeline analog to digital converter and a method for operating the switched capacitor circuit A switched capacitor circuit of a pipeline analog to digital converter. The pipeline ADC includes a clock generator, a signal reference circuit, and a plurality of switched capacitor circuit. Each switched capacitor includes an operational amplifier, a first samplin... | 10/18/2005 |
| 6952176 | Digital-to-analogue converter circuits This invention is generally concerned with digital-to-analogue converters and more particularly relates to techniques for reducing signal dependent loading of reference voltage sources used by these converters. A differential switched capacitor digital-to-ana... | 10/04/2005 |
| 6930529 | OFFSET COMPENSATION CIRCUIT COMPENSATING FOR OFFSET VOLTAGE OF DRIVE CIRCUIT AS WELL AS DRIVE CIRCUIT WITH OFFSET-COMPENSATION CAPABILITY AND LIQUID-CRYSTAL DISPLAY DEVICE USING THE OFFSET COMPENSATION CIRCUIT An offset-compensation drive circuit turns on first, second and third switches to charge a first capacitor to an offset voltage of a drive circuit, and thereafter turns off the first and second switches and turns on a fourth switch to charge a second capacitor to a ... | 08/16/2005 |
| 6927722 | Series capacitive component for switched-capacitor circuits consisting of series-connected capacitors A series capacitive component for use in signal processing applications such as analog-to-digital (A/D) converters, switched capacitor circuits and the like that require matched capacitors is presented. A series capacitive component consists of multiple capacitors c... | 08/09/2005 |
| 6910060 | Spatio-temporal filter and method A system, apparatus and methods are disclosed for the spatial and temporal processing of time dependant array data using analog signal processors. In one embodiment, a programmable array of switched capacitors is used to provide tunable parameters for controlling th... | 06/21/2005 |
| 6825739 | Switched capacitor circuit A non-inverting-side first switch is formed in a first area on one of sides of a differential amplifier, meanwhile a non-inverting-side second switch is formed in a second area on the other of sides of the differential amplifier, the non-inverting switches being for... | 11/30/2004 |
| 6738603 | Radio communication apparatus with retractable antenna and its impedance matching method A radio communication apparatus is provided, which realizes a desired impedance matching state between a retractable antenna and a circuit connected thereto in both a situation where the antenna environment is similar to a free space and a situation where the antenn... | 05/18/2004 |
| 6720843 | Filter switching circuit having a shorter distance of connection for a higher frequency passband A filter switching circuit includes first and second amplifiers, relays, and bandpass filters in which a bandpass filter having a higher frequency passband is selected by a smaller number of relays and the selected bandpass filter is connected in a decreased distanc... | 04/13/2004 |
