Matches 1 - 50 out of 251 1 2 3 4 5 6 >


Match Document Document Title
9008055 Automatic remote services provided by a home relationship between a device and a server  
A method is provided for automatically providing remote services for a mobile device having an established relationship with a server of a home network. After the relationship between the mobile...
9008600 Wireless communication receiver having one signal processing circuit whose operation mode is adjusted by monitoring signal level of specific signal of preceding signal processing circuit and related wireless communication method  
A wireless communication receiver includes a first signal processing circuit, a second signal processing circuit, and a detecting circuit. The first signal processing circuit generates a first...
8983418 Multi-stage gain control in receivers and other circuits  
Techniques and devices are disclosed to provide multi-stage gain control in circuits or devices having two or more stages of signal amplification. A circuit with multi-stage gain control can...
8958758 Communication apparatus performing automatic gain control and field length selection for a communication frame  
According to one exemplary embodiment, a communication apparatus includes: a measurement module which measures reception power of each field; a determination module which determines whether the...
8948322 Circuits, systems, and methods for managing automatic gain control in quadrature signal paths of a receiver  
A system provides closed-loop gain control in a WCDMA mode and open loop control in an EDGE/GSM mode. Gain control is distributed across analog devices and a digital scaler in a wireless receiver....
8886148 Signal based gain control  
In a signal-based gain control scheme, one or more gain levels used for processing signals are selected based on characteristics of previously received signals. For example, different gain levels...
8861579 Measuring I/Q impairments from sampled complex signals  
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators,...
8849230 Attenuator and method for attenuating  
A semiconductor device is provided, including an input attenuator configured to receive an antenna signal and to output a first attenuated signal, the first attenuated signal corresponding to the...
8830107 Frequency translating analog-to-digital converter  
A frequency translating analog-to-digital converter for receiving an analog band-pass signal is described. The analog-to-digital converter comprises an adder/input block for receiving the analog...
8811537 Signal receiving apparatus and method for wireless communication system using multiple antennas  
Provided are a receiving apparatus and method for a wireless communication system using multiple antennas. A receiving method for a wireless communication system using multiple paths, the...
8798567 Gain control circuit and receiving system  
Disclosed herein is a gain control circuit including: an amplifying section configured to amplify an input voltage in such a manner that amplitude of an output voltage at an output terminal is...
8774738 Closed loop power control for a wireless transmitter  
Embodiments of the present disclosure provide systems and methods for estimating gain and phase error in a wireless transmitter. Embodiments of the present disclosure provide a gain and phase...
8750431 Logarithmic detector and method of pre-charging an average filter on a logarithmic detector  
The detector comprises a plurality of detection stages connected to a summator for providing a summation signal as a logarithmic representation of the input signal to a first input of a data...
8731005 Absolute timing and Tx power calibration of the Tx path in a distributed system  
A radio system and a method for relaying packetized radio signals is disclosed. The radio system and the method provide a calibration of transmit signals. Furthermore the radio system and the...
8731500 Automatic gain control based on bandwidth and delay spread  
A gain control circuit adjusts the signal level of a received signal responsive to the bandwidth a received signal and/or the delay spread of the channel in which the signal has propagated. The...
8712358 Reception system including a mechanism countering pulsed interference  
A system for receiving an analogue signal e includes amplifying and digitizing the signal in order to obtain a digitized signal en, a power inversion module, the module determining an inversion...
8681846 Measurement of I/Q impairments from a sampled complex signal  
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators,...
8676140 Efficient scheme for automatic gain control in communication systems  
A system for controlling an RF gain of a receiver that reduces a time taken to maintain an input signal level at an optimum dynamic range is provided. The system includes a tuner that receives a...
8660221 Fast and robust AGC apparatus and method using the same  
The present invention discloses apparatus and method for fast and robust automatic gain control (AGC). By using the power statistics and/or the amplitude statistics of multiple pairs of signed ADC...
8626094 Method and apparatus for compensating code channel power in a transmitter  
It has now been found that in some transmitter implementations which transmit multiple code channels, for example CDMA transmitters, the observed power for each code channel at the output relative...
8606205 Receiving apparatus and auto gain control method  
A receiving apparatus converges a gain to a target gain even when a fish bone effect signal is included having a low power period in which signal power decreases abruptly compared to average...
8571152 Power-saving apparatus used for wireless communication receiver and system, and method using the same  
The present invention discloses an apparatus and method for power-saving switch on a pair of configurable analog-to-digital converters. The apparatus mainly comprises an antenna, an antenna...
8565358 Circuits, systems, and methods for managing automatic gain control in quadrature signal paths of a receiver  
A system provides closed-loop gain control in a WCDMA mode and open loop control in an EDGE/GSM mode. Gain control is distributed across analog devices and a digital scaler in a wireless receiver....
8532235 UWB delay and multiply receiver  
An ultra-wideband (UWB) delay and multiply receiver is formed of a receive antenna; a variable gain attenuator connected to the receive antenna; a signal splitter connected to the variable gain...
8521114 PIN-diode linearized automatic gain control circuits  
Automatic Gain Control AGC circuit comprising a PIN-diode attenuator having an input and an output and a control circuit connected to the attenuator so as to read a signal at the attenuator...
8514989 Method circuit and system for adapting a receiver receive chain based on detected background noise  
Disclosed is a radio frequency (RF) receiver for receiving a communication channel modulated on one or more carrier frequencies. The receiver may include a gain adjustable RF amplifier, a wideband...
8514991 Method circuit and system for adapting a receiver receive chain based on detected background noise  
Disclosed is a radio frequency (RF) receiver for receiving a communication channel modulated on one or more carrier frequencies. The receiver may include a gain adjustable RF amplifier, a wideband...
8498366 Architectures for universal or software radio  
A system and technique for providing to flexible, programmable frequency estimators and spectrum analyzers that can operate over extremely large bandwidths and yet provide high spectral resolution...
8493954 Method and apparatus for reducing digital to analog conversion (DAC) bits in frequency division multiple access (FDMA) system  
A method and an apparatus for reducing Digital-to-Analog Conversion (DAC) bits at a transmitter of a Frequency Division Multiple Access (FDMA) system reduces a number of the bits for conversion so...
8472573 Automatic gain control with out of band blocking signal compensation  
One embodiment of the present subject matter includes a method of receiving an input signal. The method, in various embodiments, includes detecting a peak of the input signal and detecting an...
8446937 Technique for the measurement of I/Q impairments associated with a sampled complex signal  
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators,...
8428534 Accuracy power detection unit  
Techniques are disclosed relating to radio frequency (RF) power detection. In one embodiment, a power detection unit is disclosed that includes a multiplier circuit configured to receive a first...
8401130 Automatic gain control method and apparatus for wireless communication systems  
A system and method are provided for automatic gain control (AGC) using an adaptive reference and a threshold. An adaptive reference allows for adjusting the target power based on variations in...
8385862 Method and apparatus for compensating code channel power in a transmitter  
It has now been found that in some transmitter implementations which transmit multiple code channels, for example CDMA transmitters, the observed power for each code channel at the output relative...
8379874 Apparatus and method for time aligning program and video data with natural sound at locations distant from the program source and/or ticketing and authorizing receiving, reproduction and controlling of program transmissions  
A wireless device and method may comprise, by way of example, a device and method for receiving wireless transmissions which may include locating data, or authorization data or program data, for...
8358985 Radio wave receiving apparatus  
A radio wave receiving apparatus is provided with a tuning circuit for bringing a receiving frequency of an antenna tuned in to a frequency of a desired wave, a frequency converting circuit for...
8355687 Receiver gain control  
A gain controller for controlling the gain of at least one amplifier in a receiver, the gain controller being arranged to, when the receiver is receiving a signal: for a first period of time,...
8351887 Systems and methods providing multi-path low noise amplifiers with seamless switching  
Systems and methods which provide a multimode tuner architecture implementing direct frequency conversion are shown. Embodiments provide a highly integrated configuration wherein low noise...
8306162 Method and apparatus for complementary cumulative distribution driven level convergence for spectrum sensing  
A method for use in a digital communications receiver for controlling an input signal level (200) into an analog-to-digital converter (ADC) initially receives a sample sequence (201) where a...
8295252 Interlace-based control channel balancing in a wireless communication network  
Systems and methodologies are described that provide interlace-based scheduling for control channels in a wireless communication system. One or more control channels for communication between a...
8259878 Apparatus and method for receiving signal in wireless communication system using multi antenna  
Provided are apparatus and method for receiving signals in a wireless communication system. A receiving apparatus including a plurality of variable gain amplifier units configured to respectively...
8238860 Tuning a second order intercept point of a mixer in a receiver  
An IP2 tuning circuit (404, 1004, 1104 and 1404) for tuning the IP2 of a mixer (414 and 415) to minimize second order intermodulation distortion (IMD2) in a receiver (402, 1002, 1102 and 1402) of...
8233093 Automatic video gain control circuit for positive and negative modulation and method thereof  
Disclosed is an automatic video gain control circuit, which includes an analog to digital converter, an envelope detector and an extreme value detector. The analog to digital converter converts an...
8224270 Method and system for optimizing transmit power of a power amplifier using a battery voltage (Vbat) monitor  
Methods, systems, and machine-readable code for optimizing transmit power of a power amplifier using a Vbat monitor are disclosed and may comprise adjusting the gain of gain stages in a transmit...
8218693 Gain control for wireless receiver  
Various embodiments are disclosed relating to a gain control for a wireless receiver. In an example embodiment, a wireless receiver is provided that may include an analog gain circuit adapted to...
8213891 Gain control apparatus and method in receiver of multiband OFDM system  
A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for...
8169546 Technique for tuner automatic gain control circuit for mobile television applications  
A technique for providing stable tracking performance to an AGC loop circuit comprises amplifying a wideband radio frequency signal; detecting signals and blockers adjacent to the radio frequency...
8145166 Enhanced programmable automatic level control  
An enhanced programmable automatic level control loop comprising an input for receiving an input RF signal; a level modulator, wherein the level modulator receives the input RF signal and a...
8107910 Differential to single-ended conversion for radio frequency devices  
In an exemplary embodiment, a circuit is disclosed comprising a plurality of inputs, each input to receive a radio frequency waveform from a plurality of differential input waveforms having...
8103234 Automatic gain control using signal and interference power to obtain extended blocking performance  
In a radio including analog and digital portions, with at least one A/D converter between the analog and digital portions, and the selectivity of the radio at least partly implemented in the...

Matches 1 - 50 out of 251 1 2 3 4 5 6 >