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| Number | Title | Issue Date |
| 8116712 | Methods and apparatus for controlling a gain state of a wireless receiver operating in an idle mode Techniques for controlling a gain state of a wireless receiver involve causing the wireless receiver to enter into a sleep mode; causing the wireless receiver to exit from the sleep mode and enter into a wake-up period; providing, via a multiplexer, a stored gain co... | 02/14/2012 |
| 8112053 | Shared LNA and PA gain control in a wireless device A wireless device includes at least one antenna, a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a shared adjustable gain element, e.g., Low Noise Amplifier (LNA), Power Ampli... | 02/07/2012 |
| 7983641 | Cable communication apparatus and cable communication method A STB 1 of this CATV system includes a diplexer 11, a signal level adjusting unit 30, a splitter 12, a tuner 2, a demodulating unit 3, a memory 17, and a CPU 19. The CPU 19 finds a correct reception leve... | 07/19/2011 |
| 7945227 | Apparatus and method for controlling voltage gain in ultra wideband receiving apparatus Provided is an apparatus and method for controlling a voltage gain in an ultra wideband receiving apparatus. The apparatus includes a register for storing an Automatic Gain Control (AGC) value detected in a section where an AGC operation control signal is “ON”; ... | 05/17/2011 |
| 7853230 | 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 an amplifier 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 illustrati... | 12/14/2010 |
| 7844239 | DC removal techniques for wireless networking A wireless communication device (WCD) performs DC removal on a received signal using a coarse DC removal unit that removes relatively large DC components and a fine DC removal loop that removes residual DC components. The coarse DC removal unit can be implemented in... | 11/30/2010 |
| 7778618 | Systems and methods for reducing broadband image noise through a programmable bandwidth RF variable gain attenuator Systems for suppressing image noise are provided. In this regard, one embodiment includes a system for suppressing image noise comprising a low noise amplifier (LNA) configured to amplify a received RF signal, an RF variable gain attenuator with an image rejection f... | 08/17/2010 |
| 7650128 | 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 ... | 01/19/2010 |
| 7583943 | 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... | 09/01/2009 |
| 7565125 | Telecommunications receiver with automatic gain control A receiver 30 has an adjustable gain control circuit 32 that provides gain control base on the magnitude of the signal at the input of an analog-to-digital converter 22. The magnitude of a gain increase or decrease can be based on the most signi... | 07/21/2009 |
| 7496337 | Method for controlling LNA gain state The method for controlling a low noise amplifier (LNA) gain state which is applied to a receiver having the LNA is disclosed. The method includes the steps of: storing an LNA gain state of an idle mode when a state of the receiver transits an idle mode to a sleep mo... | 02/24/2009 |
| 7474883 | Radio communication received having automatic gain control based on measured and received energy A receiver in a radio communication system and method for optimizing a use of an available dynamic range. The receiver has an automatic gain controller in an automatic gain control loop, a first measuring device, connected to the automatic gain controller, operable ... | 01/06/2009 |
| 7474882 | System and method for RF gain control The present invention provides a system and method for RF gain control that extracts the background noise information of the received RF signal in the short inter-frame space (SIFS), and computes the background noise information and strength information of the recei... | 01/06/2009 |
| 7469134 | 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... | 12/23/2008 |
| 7433431 | Staggered AGC with digitally controlled VGA A method of and device for automatic gain control (AGC) incorporates digitally controlled variable gain amplifiers (VGAs). An AGC circuit comprises multiple AGC stages, where each of the stages comprises: respective I and Q VGAs; a detector for detecting respective ... | 10/07/2008 |
| 7386063 | Voting block for identifying WLAN signal modulation type A WLAN device operating in an 802.11g mode can receive signals of different modulations. A technique is provided that quickly and accurately identifies signals of different modulation types when received by the WLAN device. This technique includes beginning demodula... | 06/10/2008 |
| 7373125 | Off-channel signal detector with programmable hysteresis A communication module includes a variable gain amplifier, a mixer stage responsive to the variable gain amplifier, a post-mixer amplifier stage responsive to the mixer stage, and an off-channel signal detector responsive to the post-mixer amplifier stage. The post-... | 05/13/2008 |
| 7373121 | Apparatus and method for processing a deterministic data flow associated with a wireless communication signal The invention is directed to an apparatus, method and system for providing reduced power consumption, fast processing of digitized communication signals and relatively easy reconfiguration for different applications, such as communication protocols/standards. The in... | 05/13/2008 |
| 7349680 | Method and system for using PSK sync word for fine tuning frequency adjustment In RF transceivers, a method and system for using phase shift key (PSK) sync word for fine tuning frequency adjustment are provided. One aspect of the invention provides for adjusting a local oscillator frequency in a radio frequency (RF) receiver when a residual DC... | 03/25/2008 |
| 7327797 | Orthogonal frequency division multiplexing (OFDM) receiving device for forming beam with uneven width by channel property, communication device using the same, and method thereof An OFDM receiving device for adjusting a beam formation azimuth through a plurality of antennas, a communication device using the same, and a method thereof. The OFDM communication device having a plurality of individually-aligned antennas includes a receiving signa... | 02/05/2008 |
| 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 |
| 7313416 | Scalable power amplifier A power amplifier for a dual antenna is disclosed. The power amplifier comprises at least four controlled amplifier loops receiving a signal to be transmitted. The power amplifier also comprises a first combining structure combining at least two of the amplifier loo... | 12/25/2007 |
| 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 |
| 7295638 | Communication device A direct sequence spread spectrum (DSSS) receiver (100) consistent with certain embodiments has a frequency generator (112) that generates a local oscillator signal without use of a piezoelectric crystal. A frequency converter (108) receives the... | 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 |
| 7286807 | Receiver with a cascade of resonant amplifiers in the RF input stage Receiver comprising a cascade of first to N resonance amplifiers (SA1, SA2, SA3), an output thereof being coupled to signal processing means (TO, SD, PK, LP1, S) for deriving a baseband modulation signal. To improve the signal to noise ra... | 10/23/2007 |
| 7271852 | Digital television receiver with automatic gain control unit and method An automatic gain controller (AGC) and method for use in a digital TV receiver having an IF amplifier, an RF amplifier, an analog to digital converter (ADC) connected to the IF amplifier, and a demodulator connected to the ADC, the AGC comprising: an input selector ... | 09/18/2007 |
| 7272371 | 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 cont... | 09/18/2007 |
| 7266345 | System and method for receiving broad-band signals A system and a method for receiving and processing broad-band signals in a software defined radio (SDR) terminal are provided. The system comprises first and second frequency pass units and an analog to digital signal converter (A/D converter). The first frequency p... | 09/04/2007 |
| 7266359 | DC interference removal in wireless communications A method for removing direct current (DC) interference from a signal received by a communication receiver is provided that removes both a DC offset signal induced by the communication receiver and transmitter. The method includes removing the estimated DC offset fro... | 09/04/2007 |
| 7263143 | System and method for statistically directing automatic gain control The present invention is directed to a system and method which statistically determines when regularly occurring interference events of a predictable duration will occur, for example radar pulses and dynamically adjusts an automatic gain control (AGC) for RF data tr... | 08/28/2007 |
| 7260374 | Method for controlling power level of received signal in ultra wide band transmission system Disclosed is a method for controlling power level of received signal in an ultra wide band transmission system which uses multi frequency bands, and includes a pre-gain controller (PGC) and a voltage gain amplifier (VGA). The method for controlling a power level of ... | 08/21/2007 |
| 7248890 | Channel power balancing in a multi-channel transceiver system A transceiver according to some embodiments of the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter of another transceiver and adjusts the power output of certain channels in a transmitter... | 07/24/2007 |
| 7248847 | System and method for adaptively controlling receiver gain switch points Accordingly, a system and method are provided for adaptively controlling amplification in a wireless communications device receiver. The method comprises: receiving a signal with a variable signal strength; amplifying the received signal in response to the signal st... | 07/24/2007 |
| 7245890 | High frequency variable gain amplification device, control device, high frequency variable gain frequency-conversion device, and communication device A high frequency variable gain amplification device 100 includes: a feedback circuit 103 capable of changing a feedback impedance to adjust the gain of an amplifier 101 in accordance with a control signal from a control device 200; and a ... | 07/17/2007 |
| 7242914 | Method of automatic gain control for multiple receiver front-ends A gain processor circuit calculates a first AGC signal for a first one of a number of receive chains, each including a gain-controlled front-end circuit, and derives one or more additional AGC signals from the calculation of that first AGC signal for any remaining c... | 07/10/2007 |
| 7242915 | Timing based LNA gain adjustment in an RF receiver to compensate for intermodulation interference A Radio Frequency (RF) receiver includes a low noise amplifier (LNA) and a mixer coupled to the output of the LNA. The gain of the LNA is adjusted to maximize signal-to-noise ratio of the mixer and to force the mixer to operate well within its linear region when an ... | 07/10/2007 |
| 7239856 | Apparatus and method for compensating gain of an automatic gain controller An apparatus and method for compensating the gain of an Automatic Gain Controller (AGC) for stabilizing the reception power of discontinuously transmitted packet data in a mobile communication system are disclosed. A compensation controller receives an AGC value fro... | 07/03/2007 |
| 7221226 | Amplifying apparatus with automatic level controller A window comparator compares a level of an output signal with an attack reference level, and outputs an attack signal based upon an attack reference comparison result signal thus obtained, and compares the output signal level with a recovery reference level, and out... | 05/22/2007 |
| 7215722 | Device for WLAN baseband processing with DC offset reduction A device for processing an intermediate analogue signal received from a previous system with a baseband processor. The processor includes an ordinary feedback loop for adjusting the strength of the intermediate analogue signal received from the previous system. The ... | 05/08/2007 |
