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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...
8934584 Method and device to control the gain of a radio receiver  
An automatic gain control (AGC) method and system for a radio receiver are proposed in which the ACG comprises two AGC loops; a first loop controlling signal gain in the analog portion of the...
8913975 Adaptive stepped gain amplifier system and method  
An adaptive stepped gain amplifier, for example for use in broadband receivers, has a step size which is dynamically compensated (for each received frequency) to cope with step error caused by...
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...
8866660 Data adaptive analog to digital converter  
A system and method for mitigating Analog to Digital (A/D) clipping is disclosed. The mean and variance of analog input data are tracked and the bits of A/D are dynamically reassigned to keep the...
8862081 Transceiver with receive path performance diversity and combiner with jammer detect feedback  
Methods and apparatus for implementing a wireless communication transceiver having receive path performance diversity. The transceiver implements a plurality of signal paths that can be configured...
8855587 Power consumption management based on receiver parameter and method for use therewith  
An integrated circuit (IC) includes an RF receiver having an AGC module that generates an automatic gain control (AGC) signal based on a strength of a received signal, and a low noise amplifier...
8818313 Method and apparatus for auto gain control in radio receiver  
The present invention relates to the field of communication technologies and discloses a method and an apparatus for auto gain control (AGC) in a radio receiver, which can ensure that a radio...
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...
8737941 Gain control systems and methods for controlling an adjustable power level  
A system, such as a transceiver, for controlling an adjustable power level includes first and second power detectors, a network of attenuators, a compensator, a comparator, and a controller. 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...
8712351 Reception method and reception apparatus  
A radio transmitting apparatus that has a plurality of antennas and changes the number of modulated signals transmitted simultaneously according to the propagation environment and so forth. A...
8699638 Method and device for implementing automatic frequency control  
The present invention discloses a method for implementing automatic frequency control, and an apparatus thereof. The method discloses: calculating a correlation value of common pilot symbols in a...
8682270 Receiver having multipath equalizer  
An FM receiver includes a receiving unit that receives a signal from a broadcasting station and outputs a receiving signal, an equalizer that equalizes the receiving signal by using a calculated...
8670510 Method and system for channel estimation in a single channel MIMO system with multiple RF chains for WCDMA/HSDPA  
Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a...
8655295 Receiving apparatus  
According to one embodiment, a receiving apparatus includes a variable gain amplifier, comparator, and signal processor. The comparator compares a signal level of the second signal with a first...
8626098 Automatic gain control with programmable attack and decay times  
A transconductance comparator includes a comparator having an output of a detector configured to sense an amplitude of an output of a Variable Gain Amplifier (VGA) of a receiver as a first input...
8626245 Systems and methods for distributed antenna system reverse path summation using signal-to-noise ratio optimization  
Systems and methods for distributed antenna system reverse path summation using signal-to-noise ratio optimization are provided. In one embodiment, a method for reverse path summation for a...
8620000 Apparatus and method for controlling audio output, and mobile terminal system using the same  
An audio output controlling apparatus and method, and a mobile terminal system using the same control settings of an audio out port according to whether an audio frame includes an audio signal....
8619749 Apparatus having and method for implementing a distributed architecture for receiving and/or transmitting radio frequency signals  
A distributed architecture system for receiving radio frequency (RF) signals includes a receiving unit receiving a plurality of RF signals. The receiving unit includes means for combining the...
8599955 System and method for distinguishing between antennas in hybrid MIMO RDN systems  
A system for distinguishing between any one of a plurality of antennas in a multiple-input-multiple-output (MIMO) system having an augmented number of antennas is provided herein. The system...
8594592 Transmitter, base station device, and method for aligning signal output from transmitter  
A transmitter, a base station device, and a method for aligning a signal output from a transmitter are provided. The transmitter is connected to a first antenna, and the first antenna detects a...
8588719 Low power automatic gain control  
A radio receiver includes a plurality of receiver signal strength indicator (RSSI) circuits coupled to respective output taps of various gain stages along the receiver chain. Each of the RSSI...
8583064 Receiver for estimating and compensating for in-phase/quadrature mismatch  
A receiver includes a first mixer configured to provide an in-phase (I) component of a radio frequency (RF) signal to an I channel by down-converting the RF signal, a second mixer configured to...
8576937 Precoding apparatus and method in a wireless communication system using multiple input multiple output  
A transmission apparatus in a Multiple Input Multiple Output (MIMO)-based wireless communication system. The transmission apparatus includes at least two antenna groups each having at least two...
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...
8571507 Analog signal processing device for phased array antennas  
A signal processing device includes a device package, processing circuitry and biasing circuitry. The processing circuitry is packaged in the device package and is operative to receive one or more...
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....
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...
8509850 Systems and methods for distributed antenna system reverse path summation using signal-to-noise ratio optimization  
Systems and methods for distributed antenna system reverse path summation using signal-to-noise ratio optimization are provided. In one embodiment, a method for reverse path summation for a...
8494467 Automatic gain control configuration  
The invention teaches a solution, for example, for Long Term Evolution (LTE) networks. The solution comprises determining a measurement pattern for at least one automatic gain control tracking...
8463213 Reception method and reception apparatus  
A radio transmitting apparatus that has a plurality of antennas and changes the number of modulated signals transmitted simultaneously according to the propagation environment and so forth. A...
8457573 Automatic gain control with state machine controller feedback  
An automatic gain control circuit is described including a state machine controller for adjusting intermediate frequency gain and radio frequency gain and a baseband demodulator, wherein the...
8428170 Method for transmitting multi-antenna superimposed symbol and apparatus using the same  
A method for transmitting symbols in a communication system, includes dividing N symbols to be transmitted at one time into 2 groups. A first processing is performed on each of a plurality of...
8416896 Method and system for channel estimation in a single channel MIMO system with multiple RF chains for WCDMA/HSDPA  
Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a...
8417202 Circuits, architectures, apparatuses, systems, algorithms, methods and software for on-chip gain calibration  
Circuits, architectures, a system and methods for providing on-chip gain calibration. The circuit generally includes a receiver comprising (i) a resistor on a semiconductor substrate, the resistor...
8385868 Diversity antenna system and method utilizing a threshold value  
An antenna system for receiving an RF signal from a first antenna and a second antenna includes a phase shift circuit. The phase shift circuit shifts a phase of the RF signal from the second...
8380149 DC offset canceller, receiving apparatus and DC offset cancellation method  
According to an embodiment, a DC offset canceller includes a first DA converter, a first adder, an amplifier, a comparator, an averaging circuit, and a successive approximation register. The first...
8320858 Apparatus for receiving multiple independent RF signals simultaneously and method thereof  
An apparatus and method for receiving and processing multiple independent, uncorrelated RF signals is presented. The apparatus includes a Hybrid-Direct Conversion Receiver incorporating front end...
8285234 Mobile station apparatus  
A mobile station apparatus is provided which is capable of obtaining a diversity effect and preventing an increase in noise even if an antenna phase difference containing an error is detected. The...
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...
8260228 Radio transmitting apparatus and radio transmission method  
A radio transmitting apparatus that has a plurality of antennas and changes the number of modulated signals transmitted simultaneously according to the propagation environment and so forth. A...
8229382 Switched current resistor programmable gain array for low-voltage wireless LAN and method using the same  
A switched current resistor (SCR) PGA for constant-bandwidth gain control includes an inverting amplifier, a feedback resistor forming a feedback loop between an output side and an input side of...
8219058 Radio receiver  
A radio receiver adapted to alternatively receive data over a communication channel in a first mode and a second mode. The second mode facilitates reception of data at higher data rates than the...
8179836 Method and apparatus for controlling transmissions via an enhanced dedicated channel  
A method and apparatus for controlling transmissions of data via an enhanced dedicated channel (E-DCH) are disclosed. A list of available transport format combinations (TFCs) is generated based on...
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...
8144634 Reducing automatic gain control process in time division duplex communication mode  
In TDD mobile networks, an incoming signal is received during a time period where no uplink communication takes place. The incoming signal is measured and analyzed to determine a noise level....
8116706 Method and apparatus for calibrating a bandpass filter  
To calibrate a bandpass filter, a received signal strength corresponding to a received communication channel is determined. A variable element of the bandpass filter is adjusted based on the...
8111789 Method and system for channel estimation in a single channel MIMO system with multiple RF chains for WCDMA/HSDPA  
Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a...
8098742 Gain control method and apparatus  
An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty...

Matches 1 - 50 out of 245 1 2 3 4 5 >