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Telecommunications > Receiver Or Analog Modulated Signal Frequency Converter > Local Control Of Receiver Operation > Gain Control > Automatic AutomaticAutomatic 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.02/22/07 - 20070042737 - Controllable mixer A heterodyne receiver has a mixer with at least one transistor whose operating point can be varied dynamically. The quality of the output signal from the mixer is assessed in order to control the operating point. The operating point is set such that the collector current is increased when the ... 02/22/07 - 20070042736 - Detection circuit and method of adjusting dectection circuit A gain control section (150) controls an attenuator (101) to change the level of a signal output from the attenuator (101) to variable amplifiers (121, 131) and at the same time controls the variable amplifiers (121, 131) to adjust the gains in the variable amplifiers (121, 131). Through this adjustment, ... 10/12/06 - 20060229044 - Combined discrete automatic gain control (agc) and dc estimation An automatic gain control (AGC) and DC estimation and correction technique for wireless communication devices is provided. An AGC signal, which controls a gain applied to a received signal by a gain stage to generate a scaled signal, is assigned one of a relatively small number of values in accordance ... 10/12/06 - 20060229043 - Direct conversion receiver circuit A receiver circuit includes a low noise amplifier (LNA) 1 to which a received signal is input, a mixer 2 for mixing an output of the LNA and a local signal, a first low-pass filter 3 for receiving an output of the mixer, and a composite amplifier in which a ... 10/05/06 - 20060223470 - Radio-frequency communication control system, radio-frequency communication control method and computer-readable storage medium An RF communication control system for executing the process of transmitting and receiving an RF signal through an RF control circuit unit and digitally processing the data contained in the RF signal through a baseband circuit unit, is disclosed. The baseband circuit unit includes a setting parameter holder for holding ... 09/14/06 - 20060205372 - Agc circuit arrangement for a tuner A method and apparatus for generating the adaptive gain control signals in a communications receiver is disclosed. The present invention can be used with existing two stage gain architectures, and overcomes many undesirable characteristics of the previous mechanism. An apparatus is presented wherein each of a plurality of RF AGC ... 09/07/06 - 20060199558 - Apparatus and method for detecting preambles according to ieee 802.11a/b/g wireless lan standards and its application to a 802.11 multimode receiver The present invention relates to the field of wireless communication systems and in particular to an apparatus and a method for detecting preambles according to IEEE 802.11a/b/g wireless LAN standards and its application to an 802.11 multimode receiver. The proposed apparatus is capable of detecting 802.11a/b/g preambles by using two ... 06/22/06 - 20060135104 - Automatic gain control circuit including power detector Disclosed herein is an automatic gain control circuit including a power detector. The automatic gain control circuit includes a receiving unit for receiving an RF signal and a gain control unit for controlling the gain of the receiving unit. The receiving unit comprises an amplification part including a low noise ... 06/08/06 - 20060121867 - Automatic gain control method in wireless packet communication system The present invention relates to an automatic gain controller in a wireless packet communication system and an automatic gain control method thereof. The automatic gain controller includes a variable gain amplifier, a signal saturation determining unit, a power calculator, and a gain controller. The gain controller includes a first gain ... 05/11/06 - 20060099923 - Method for monitoring broadcast signals at alternative frequencies and gain control unit Many broadcast stations transmit their programs via a variety of different frequencies. The invention relates to monitoring alternative frequencies during the reception of a broadcast signal at a present frequency. Whenever the broadcast signal at an alternative frequency is checked, the receiver's gain is instantaneously switched from a present gain ... 05/04/06 - 20060094384 - Automatic gain control with gain stepping and regulation An automatic gain control device and a related method for its operation, using a first-order control loop for adjusting a received communication signal to compensate for variations in received signal power. The device bases its adjustments on a measure of the average received root-mean-square (rms) signal power and, in its ... 03/30/06 - 20060068735 - Radio receiver and radio receiving method A radio receiver comprises an LNA which amplifies An RF signal, a quadrature demodulator which directly demodulates the amplified RF signal into a B/B signal, using a LO signal, a VGA which amplifies the B/B signal, a DC offset canceller which executes feedback control on the amplified B/B signal, and ... 03/30/06 - 20060068734 - Radio receiver and radio receiving method A radio receiver comprises an LNA which amplifies An RF signal, a quadrature demodulator which directly demodulates the amplified RF signal into a B/B signal, using a LO signal, a VGA which amplifies the B/B signal, a DC offset canceller which executes feedback control on the amplified B/B signal, and ... 03/30/06 - 20060068733 - Automatic gain control for a wlan system An Automatic Gain Control (AGC) method and system thereof. The power of a detected signal is first checked to ensure that it is large enough for AGC process. A power average of the detected signal is computed and compared to a first threshold in order to determine whether to proceed ... 03/16/06 - 20060057991 - Mixer gain control with gain tracking offsets An apparatus and method to use a gain control network across source terminals of cascode transistors that drive a differential current to control gain. The drains of the cascode transistors are coupled to a load such as a mixer. The cascode arrangement provides high impedance coupling to the load and ... 03/16/06 - 20060057990 - Gain boosting rf gain stage with cross-coupled capacitors A RF differential gain stage has cross-coupled capacitors between input and output nodes of the amplifier stage to boost gain. The gain boost allows cancellation of the series resistance of an inductive load of the amplifier stage. ... 02/23/06 - 20060040629 - High frequency amplification circuit and mobile communication terminal using the same A gain control circuit 12 comprises an FET 41 operating as a variable resistor. A gate terminal of the FET 41 is supplied with a control voltage VC applied to a gain control terminal 23. A source terminal and a drain terminal of the FET 41 are supplied with a ... 02/23/06 - 20060040628 - Television receiver including an integrated band selection filter A tuner circuit includes a band selection filter coupled to receive an input RF signal and provide a band selected output signal where the band selection filter includes a bank of band pass filters. Each band pass filter includes an inductor and a variable capacitor forming an LC resonator where ... 01/12/06 - 20060009182 - Direct conversion receiving apparatus and cellular phone The direct conversion receiving apparatus has a gain control amplifier for variably amplifying a base band signal based on a gain switching control signal. A high pass filter has a first circuit including capacitors connected in parallel that are inserted in a path connecting an input terminal to an output ... 01/12/06 - 20060009181 - Automatic gain control device An automatic gain control device capable of reducing signal saturation or signal distortion caused by out-of-band signals of a filter or delay of a control signal. An AGC response control section compares a level of control voltage (‘V2_I terminal’ signal) output from an AGC control section b with a level ... 12/29/05 - 20050287975 - Automatic gain control for satellite digital audio radio service receiver, method of automatically controlling gain and sdars receiver incorporating the same An automatic gain control (AGC) for a Satellite Digital Audio Radio Service (SDARS) receiver, a method of automatically controlling gain and a SDARS receiver incorporating the AGC or the method. In one embodiment, the AGC includes: (1) an AGC function selector configured to compare first and second time division multiplexed ... 12/01/05 - 20050266815 - Agc circuit The AGC circuit that is provided in an RF receiver is equipped with the detection circuit that detects a high frequency reception signal and outputs the detection signal including a pulsating component and implements the gain control on an RF amplification circuit according to the detection output. The amplifier (DC ... 11/10/05 - 20050250462 - Gain control circuit An automatic gain control circuit is used to vary the gain of a low noise amplifier and baseband amplifiers in a direct conversion receiver in a mobile telephone handset. The automatic gain control circuit is configured to cause a power level (57) of a signal supplied to an analog-to-digital converter ... 10/06/05 - 20050221778 - Automatic gain control device, automatic gain control method, control program for automatic gain control device, radio communication terminal having automatic control device, radio communication system, and radio communication method An automatic gain control device includes an amplifier for a reception signal, a signal processing unit, a memory, and a control unit. The amplifier can set a gain. The signal processing unit extracts control data from an output from the amplifier and performs information processing for the data. The memory ... 09/22/05 - 20050208915 - Circuit arrangement for load regulation in the receive path of a transponder A circuit arrangement for load regulation of circuit components is arranged in a receive path of a transponder, having an input path through which a first voltage signal can be tapped, having a voltage sensor arranged in the input path for measuring the first voltage signal, having at least one ... 08/25/05 - 20050186928 - Automatic gain control circuit and receiver device having the automatic gain control circuit, and automatic gain control method An automatic gain control circuit optimizes a follow-up performance of an automatic gain control loop to thus assure a good receiving operation. A generation timing or a generation period of a control signal GC is decided in response to a lapsed time in operation of the receiver device. For a ... 08/11/05 - 20050176394 - Receiver device It is an object of the present invention to downsize a receiver of a mobile phone, its base station and the like. In the invention, a level measurement circuit 15a, a frequency offset detection circuit 16a, a frequency correction circuit 17a, a channel skewness detection circuit 18a, a channel skewness ... 08/04/05 - 20050170803 - Method for automatically executing a specified function in a portable terminal Disclosed is a method for automatically executing a specified function in a portable terminal. The method includes setting a positioning or orientation specified by a user among predetermined positionings of the portable terminal corresponding to a function specified by the user among functions that can be set by the user, ... 07/14/05 - 20050153672 - Automatic gain control device, radio communication device and automatic gain control method An automatic gain control apparatus and method that acquires current position of its own station at the start of communication to calculate the communication distance from a communication partner station and sets an initial value for gain of its variable gain amplifier based on the calculated communication distance. The automatic ... 06/30/05 - 20050143034 - Rf integrated circuit with signal gain adjustment A method and apparatus for signal gain adjustment within an RF integrated circuit (IC) include processing that begins by determining the signal strength of a received RF input signal with respect to a first signal strength scale to produce a signal strength indication. The processing continues by determining whether the ... 06/02/05 - 20050118972 - Rf circuit for disc playing apparatus When a state in which the amplitude level of an RF signal is equal to or lower than a predetermined level is detected by a DEF signal generation unit 36 (RF signal level detection unit), an auto-gain control unit (AGC) 34 suppresses the amplification factor thereof to be lower than ... ### FreshPatents.com Support |