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Telecommunications > Receiver Or Analog Modulated Signal Frequency Converter > Local Control Of Receiver Operation > Gain Control Gain ControlGain Control patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.02/15/07 - 20070037537 - Radio wave reception device, radio wave clock, and repeater A received low-frequency standard radio wave, which is an amplitude modulation signal, is converted to an intermediate frequency signal Sa, and is output to a detection circuit and an AGC circuit. The detection circuit and AGC circuit generates an RF control signal Sf1 and IF control signal Sf2 from the ... 02/08/07 - 20070032212 - Radio wave reception device, radio wave clock, and repeater A received low-frequency standard radio wave, which is an amplitude modulation signal, is converted to an intermediate frequency signal Sa, and is output to a detection circuit and an AGC circuit. The detection circuit and AGC circuit generates an RF control signal Sf1 and IF control signal Sf2 from the ... 02/01/07 - 20070026829 - Automatic gain controllers and methods for controlling voltage of control gain amplifiers An automatic gain controller includes a voltage control gain amplifier amplifying input signals in response to a control voltage and producing output signals. A level detector detects peak and bottom levels of the output signals of the voltage control gain amplifier, and an analog-digital converter (ADC) converts the detected peak ... 01/04/07 - 20070004359 - Peak detector A receiver includes a gain stage, a peak detector and a processor. The gain stage provides an output signal, and the peak detector provides a binary indication of whether the output signal has reached a predetermined threshold. The processor controls the gain stage in response to the binary indication. ... 12/28/06 - 20060293009 - Agc circuit An AGC circuit comprises a variable gain amplifier that has a gain set variably and amplifies an input signal with the gain; a detection circuit that detects an output signal amplified by the variable gain amplifier; an error amplifier that outputs an error voltage corresponding to a difference voltage between ... 12/07/06 - 20060276153 - Dc cancellation in zero-if receivers Improved DC cancellation in zero-IF receivers for eliminating the DC offset that otherwise would be caused by the AC voltage on a coupling capacitor at the time of switching from AC coupling to DC coupling. The coupling capacitor normally is connected first as a high pass filter to block any ... 11/23/06 - 20060264192 - In-situ gain calibration of radio frequency devices using thermal noise An apparatus for calibrating gain of an radio frequency receiver (“Rx”) is disclosed to provide, among other things, a structure for performing in-situ gain calibration of an RF integrated circuit over time and/or over temperature without removing the RF integrated circuit from its operational configuration, especially when the gain of ... 10/12/06 - 20060229042 - Method and apparatus for generating arbitrary phase shift using a phase shifter based on adding two perpendicular vectors with variable gains A radio frequency (RF) phase shifter having an RC-CR circuit that includes a first capacitor having a first capacitor node and a second capacitor node and a first resistor coupled between the first capacitor node and a ground. The RC-CR circuit also includes a second resistor having a first resistor ... 08/24/06 - 20060189288 - Methods and apparatus for controlling a gain state of a wireless receiver operating in an idle mode The settling time of a wireless receiver is reduced by providing a previously utilized gain control state value to a low noise amplifier (LNA) of a receiver front end during a warm-up portion of a wake-up period of the wireless receiver which follows a sleep period. One illustrative method includes ... 08/17/06 - 20060183451 - Method and system for continuously compensating for phase variations introduced into a communication signal by automatic gain control adjustments A communication system including an automatic control (AGC) circuit, a receiver, an analog to digital converter (ADC) and an insertion phase variation compensation module. The AGC circuit receives and amplifies communication signals. The gain of the AGC circuit is continuously adjusted. The AGC circuit outputs an amplified signal to the ... 07/27/06 - 20060166633 - Methods and apparatus for automatic gain control in broadband tuners In one aspect, an automatic gain control (AGC) for applying a variable gain to a broadband signal is provided. The AGC comprises a variable gain amplifier adapted to receive the broadband signal as an input, the variable gain amplifier configured to apply a variable gain to the broadband signal based ... 07/20/06 - 20060160510 - Method and apparatus providing calibration technique for rf performance tuning A method is disclosed for operating a RF receiver of a communications equipment, as is circuitry for implementing the method. The method includes, while operating under the control of a data processor of the communications equipment, generating a calibration signal; injecting the calibration signal into a low noise amplifier (LNA) ... 07/13/06 - 20060154634 - Gain controlled external low noise amplifier A receiver for receiving radio frequency signals from a remote keyless entry system and another system includes a low noise amplifier for amplifying and increasing the range and sensitivity of the receiver, such that the receiver may receive signals at increased distances. A gain of the low noise amplifier is ... 07/06/06 - 20060148437 - Circuit and method for reducing mobile station receiver power consumption by dynamically controlling linearity and phase noise parameters A comparison is made in a number of scenarios of a current channel gain setting for a receiver to a threshold. If the current channel gain setting is less than the threshold, then current within at least a portion of the receiver is decreased. In one scenario, the comparison is ... 06/29/06 - 20060141964 - Variable gain amplifier device A variable gain amplifier device controlled by a first gain control signal comprises a gain controlled amplifier having a gain and including a differential pair of first and second MOS type transistors configured to operate in a weak inversion region; and a control signal converter configured to convert the first ... 06/22/06 - 20060135103 - Self-tuned millimeter wave rf transceiver module A self-tuned millimeter wave transceiver module includes a microwave monolithic integrated circuit (MMIC) having at least one amplifier. A controller is operatively connected to the MMIC for sensing amplifier operating conditions and tuning the at least one amplifier to an optimum operating condition. The controller includes a surface mounted microcontroller ... 06/22/06 - 20060135102 - Tuner for compensating for take-over point depending on temperature The present invention relates to temperature compensation of a tuner, and more particularly, to a tuner in which Take-Over Point (TOP) is compensated for according to a temperature. The tuner according to the present invention down-converts a Radio Frequency (RF) wireless signal and outputs the converted signal. The tuner compensates ... 06/22/06 - 20060135101 - Interference reduction using low complexity antenna array Interference reduction is achieved within a communication device using a low complexity antenna array. In at least one embodiment, phase and magnitude values associated with an antenna element within a low complexity array are dynamically adjusted during device operation in a manner that enhances a predetermined quality criterion (e.g., SINR). ... 06/15/06 - 20060128334 - Wireless communication receiver To reduce circuit area and power consumption and suppress transient response occurring at switching in PGA of a programmable gain amplifier is provided a wireless communication receiver comprising PGAs for adjusting the gain of a received signal down-converted by mixers and sending it to base-band block. Within PGAs are provided ... 06/01/06 - 20060116097 - Controlling the gain of a remote active antenna A receiver includes a tuner and a circuit. The tuner receives an indication of a radio frequency signal from an antenna feedline in response to the radio frequency signal being provided to the antenna feedline by an amplifier. The circuit transmits a control signal to the antenna feedline to control ... 05/25/06 - 20060111067 - Tuner circuit and digital broadcast receiver with the same A tuner circuit according to the invention includes two AGC control units supplying AGC voltages V1 and V2 to an AGC amplifier, respectively. When the AGC voltage V1 is higher the AGC voltage V2, a voltage on a cathode of a diode becomes high, and the diode 11 is turned ... 05/25/06 - 20060111066 - Tuner A tuner is provided for selecting a channel for reception from a multiple channel input signal. The tuner has a signal path which converts a selected channel, for example in a frequency changer, to a standard intermediate frequency and supplies this to a demodulator. The signal path has at least ... 05/11/06 - 20060099922 - Variable gain amplifying circuit with matchable input/output impedance A variable gain amplifying circuit includes a gate-grounded amplifying FET and a collector-grounded amplifying transistor. A gate voltage of the FET and a base voltage of the transistor are adjusted by a supplied AGC voltage. When an input RF signal has small amplitude, the gate voltage is increased by a ... 05/04/06 - 20060094383 - Signal receiver and method for optimizing gain of a tuner A signal receiver (300) has a tuner (301), which receives an RF_IN signal and outputs a desired IF_OUT intermediate frequency signal to a demodulator (311). The demodulator (311) controls the RF_AGC and IF_AGC tuner gains according to an AGC characteristic of the tuner, to provide a constant level of the ... 05/04/06 - 20060094382 - Signal receiver and method for controlling gain of a tuner A signal receiver (300) has a tuner (301), which receives an RF_IN signal and outputs a desired IF_OUT intermediate frequency signal to a demodulator (311). The demodulator (311), on the basis of the signal level received from the tuner and the AGC characteristic set by a processor (321), controls the ... 04/20/06 - 20060084402 - Filter control method, signal processing circuit and integrated circuit for wireless receiver A conventional method of controlling the passband of a filter involves an increase in cost for a chip due to a large area of a detection circuit for determining the level of an interference wave. The present invention utilizes a result obtained by detecting the amplitude level of a signal ... 03/30/06 - 20060068732 - Receiver gain control using a pilot signal A method and system is disclosed for perform receiver gain control. A pilot signal is transmitted prior to each transmit period to facilitate an initial gain setting for a corresponding receiver period. This pilot signal has known properties and requires a much smaller receiver dynamic range than the rest of ... 01/19/06 - 20060014507 - Radio receiver A radio receiver (30) comprises an ADC (13) including a clip counter. The power of digitised signals provided by the ADC (13) is estimated by a power estimator (31), and an ideal gain value is computed from the power so estimated by a gain computation device (32). Gain computation signals ... 11/10/05 - 20050250461 - Hybrid parallel/serial bus interface A hybrid serial/parallel bus interface has a data block demultiplexing device. The data block demultiplexing device has an input configured to receive a data block and demultiplexes the data block into a plurality of nibbles. For each nibble, a parallel to serial converter converts the nibble into serial data. A ... 10/27/05 - 20050239427 - Gain control method, gain controller, receiver having the gain controller, and mobile telephone A gain control method and a gain control device for comparing output power (Wo) of a variable gain amplifier (4) with target power (Wd) and controlling the gain of the variable gain amplifier (4) in accordance with a comparison result, characterized in that plural gain control cycles are executed while ... 08/25/05 - 20050186927 - Signal processing semiconductor integrated circuit device and wireless communication system The invention provides a signal processing semiconductor integrated circuit of the direct conversion system, which includes a dummy amplifier having the same circuit configuration as a low noise amplifier being the first stage amplifier, in which the DC offset calibrations on the subsequent stage amplifiers are carried out during shifting ... 08/11/05 - 20050176393 - Filter circuit permitting adjustment of cutoff frequency A filter circuit, having a plurality of selectable impedance elements, that has a cutoff frequency dependent on a selected impedance element, comprises a pulse generation circuit that supplies a variable frequency pulse with a successively increasing or decreasing frequency to an input of the filter circuit; and an impedance element ... 06/30/05 - 20050143033 - Gain control circuit, and a radio communication apparatus using the same A gain control circuit comprises a variable gain circuit having a predetermined gain control range and a control voltage supply circuit for supplying an internal control voltage to the variable gain circuit as a gain control signal. In this gain control circuit, the control voltage supply circuit generates the internal ... 06/30/05 - 20050143032 - Dc offset cancel circuit A DC offset cancel circuit includes an analog adder 1 to whose one input a baseband analog signal output from a high-frequency reception section is input and to whose other input an analog correction signal output from a D/A converter 7 is input, and which corrects the reference voltage value ... 06/23/05 - 20050136872 - Mobile communication terminal apparatus, a variable gain amplifier circuit and a gain control circuit In order to avoid disappearance of output symbols in accompaniment with DC voltage fluctuations occurring at the timing of switching gain in receiving systems for mobile telephones or the like compatible with W-CDMA systems, the present invention provides a variable gain amplifier circuit, a gain control circuit and a mobile ... 06/16/05 - 20050130615 - Programmable gain amplifier (pga) with agc in receiver section A method and apparatus for dynamically controlling a programmable gain amplifier (PGA) to provide a plurality of gain steps thereby providing automatic gain control (AGC) in a receiver intermediate frequency (IF) stage comprising a succession of operational amplifiers wherein at least one is for providing fine gain control and wherein ... 06/02/05 - 20050118971 - High frequency amplifier circuit permitting variable gain control The present invention is an amplifier circuit that permits variable gain control, comprising an input terminal to which a high frequency input signal is supplied; an amplifier transistor to the gate of which the high frequency input signal supplied to the input terminal is supplied and which generates an amplified ... ### FreshPatents.com Support |