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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8145161 | Receive configuration adaptation for wireless transceivers An integrated circuit radio transceiver and method therefor is operable to determine an antenna configuration for receive operations. More specifically, the system is operable to determine a receive antenna configuration in a network that includes a number of spatia... | 03/27/2012 |
| 8041318 | Relative frequency error compensation for multi-carrier receivers A wireless receiver utilizes a single analog oscillator to down-convert multi-carrier signals in one or more receiver front-end paths. The received signals are digitized, and the different carrier signals received at each antenna are separated in digital domain by m... | 10/18/2011 |
| 7957713 | Method for calibrating automatic gain control in wireless devices Disclosed herein is an iterative process for calibrating an AGC in a wireless system, wherein the iterative process comprises transmitting a calibration signal, receiving the calibration signal, decoding the calibration signal to produce a measurement, storing the m... | 06/07/2011 |
| 7853224 | Fast settling radio receiver automatic gain control system A fast settling AGC system includes a “fast settle” comparator that facilitates fast settling of strong radio receiver output signals from a maximum to an intermediate voltage level at the start of each transmission burst, and a “normal” AGC comparator that ... | 12/14/2010 |
| 7747234 | Gain control in a multiple RF transceiver integrated circuit A radio frequency (RF) transceiver integrated circuit (IC) includes a plurality of baseband Tx sections, a plurality of RF Tx sections, a plurality of RF Rx sections, and a plurality of baseband Rx sections. The RF transceiver IC further includes a static digital in... | 06/29/2010 |
| 7668517 | Radio frequency signal receiver with adequate automatic gain control The invention provides a radio frequency signal receiver with adequate gain control path to control the gain of a mixer and/or a channel selection filter, comprising a low noise amplifier for receiving and amplifying a radio frequency signal, a local oscillator (LO)... | 02/23/2010 |
| 7587183 | Multi-frequency antenna assemblies with DC switching According to various exemplary embodiments, apparatus, systems, and methods are disclosed for use with antenna systems operable for receiving first and second signals having respective first and second frequencies. In one exemplary embodiment, a controller selective... | 09/08/2009 |
| 7565121 | Clock noise canceling circuit In a clock noise canceling circuit, a coupler extracts a signal from a clock signal. A filter selects a harmonic component of a preset frequency in the extraction signal from the coupler. A phase shifter phase inverts the harmonic component of the preset frequency f... | 07/21/2009 |
| 7515886 | Digital broadcast receiving tuner and receiving device incorporating it In a digital broadcast receiving tuner, a down-converter unit converts a high-frequency signal into a baseband signal directly or by once converting it into an intermediate frequency signal. A gain adjuster unit properly adjusts the actual level of the high-frequenc... | 04/07/2009 |
| 7444126 | Signal-to-noise optimized fully monolithic video receiver IF channel In a video IF channel the gain of the circuit is achieved ahead of the IF filter and the output of the filter, including its noise, need only be amplified a relatively small amount, thus preserving an acceptable signal to noise ratio. In one embodiment, a variable g... | 10/28/2008 |
| 7436903 | Multicarrier transmitter and method for transmitting multiple data streams with cyclic delay diversity A multicarrier transmitter may transmit cyclically delayed linear combinations of two or more data streams with three or more antennas. In some embodiments, the multicarrier transmitter may transmit cyclically delayed linear combinations of three data streams with f... | 10/14/2008 |
| 7436793 | System and method for effectively performing a transmit power adjustment procedure A system and method for effectively performing a transmit power adjustment procedure in a wireless network includes a forward receiver that monitors a wireless forward link for forward data that is transmitted over the wireless forward link by a forward transmitter.... | 10/14/2008 |
| 7433663 | Automatic gain control system for multiple receiving antennae A multiple receiving antennae system having a plurality of radio frequency (RF) modules being responsive to incoming signals for processing the same to generate baseband signals. The multiple receiving antennae system further processes baseband signals to generate d... | 10/07/2008 |
| 7430403 | Method and apparatus for hysteresis control A hysteresis control method for a control system includes setting an arbitrary reference value for an existing position of a control width and calculating a difference between a present input value and the arbitrary reference value. A direction of increase/decrease ... | 09/30/2008 |
| 7430404 | 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 ... | 09/30/2008 |
| 7428262 | Channel estimation in a rake receiver of a CDMA communication system A method and apparatus for channel estimation in a rake receiver of a CDMA communication system operates with a finite-impulse-response channel estimation filter with L taps and having a fixed delay. A pilot sequence of a received sequence of data from a channel of ... | 09/23/2008 |
| 7426376 | Receiver having digital automatic gain control An apparatus includes a semiconductor package, a radio receiver and a processor. The radio receiver is located in the semiconductor package and includes at least one gain stage. The processor is located in the semiconductor package to execute stored instructions to ... | 09/16/2008 |
| 7421260 | Method and system for a second order input intercept point (IIP2) correction In RF transceivers, a method and system for a second order input intercept point (IIP2) correction are provided. A DC offset sensor may detect DC offset voltages produced by blocker signals in “I” and “Q” signal component paths in an RF receiver. The ... | 09/02/2008 |
| 7421261 | Blind detection The present invention relates to a blind detection of a received signal having at least one property, which initially is unknown to the receiver, however, limited to a finite set of alternatives ({p1, p2, . . . , pm}). According to t... | 09/02/2008 |
| 7415259 | 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 confi... | 08/19/2008 |
| 7406300 | Extending wireless communication RF coverage inside building A wireless communication system includes at least one repeater antenna assembly for providing adequate RF coverage within a building, such as a home. An example repeater antenna assembly has an automatically adjustable gain that is controlled responsive to a pathlos... | 07/29/2008 |
| 7398066 | Communication system control using reliability data A method and apparatus for recovering a data symbol from a communication signal in which the communication signal is processed to produce a baseband waveform that is then sampled to obtain a channel sequence. The channel sequence is decoded to obtain an estimate of ... | 07/08/2008 |
| 7398070 | 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 amplit... | 07/08/2008 |
| 7386285 | Automatic gain control adaptive for plural modulation schemes An AGC circuit controls LNA and VGA amplifiers such that a received signal is converted at a high speed with tracking errors prevented according to each modulation scheme. The AGC circuit generates LNA and VGA control signals controlling the LNA and VGA amplifiers, ... | 06/10/2008 |
| 7373126 | Receiving apparatus The gain control signal generating unit generates a gain control signal, using a signal yielding the greatest level among signals of the respective signal processing units. The gain standardizing unit stores, in the offset storage units, offsets corresponding to gai... | 05/13/2008 |
| 7372925 | Wireless LAN receiver with I and Q RF and baseband AGC loops and DC offset cancellation A wireless local area network receiver having separate automatic gain control (AGC) loops for providing a radio frequency AGC and a baseband frequency AGC, as well as a DC offset cancellation circuit. The AGC loops control a low noise amplifier amplifying the receiv... | 05/13/2008 |
| 7369823 | Reception apparatus A comparison circuit 13x compares signals from demodulator circuits 11a and 11b and thereby compares the reception condition of the antennas 1a and 1b. The tuner circuit corresponding to the anten... | 05/06/2008 |
| 7366245 | Calibration in MIMO systems Aggregate channel reciprocity in a wireless system is supported by calibrating transmitter/receiver pairs. ... | 04/29/2008 |
| 7359686 | Radio-frequency amplifier system A device for measuring voltage levels includes a root mean square (RMS) detector. The RMS detector includes a linear multiplier, a log converter, a low-pass filter and a temperature compensator. The linear multiplier multiplies a voltage of an input signal by the vo... | 04/15/2008 |
| 7356110 | Gain control method for a receiver of signals transmitted in bursts and receiver exploiting it The method is applicable to a receiver (1) of signals corresponding to packets of digital data transmitted in bursts, which comprises an analogue pickup subassembly (3) connected to a digital processing subassembly (8) by means for converting an... | 04/08/2008 |
| 7353010 | Techniques for fast automatic gain control An automatic gain control (AGC) technique can quickly sense signal size over a large dynamic range by using a peak detector block in the analog portion of the receiver. The peak detector block can compare a received signal to predetermined thresholds (chosen to divi... | 04/01/2008 |
| 7349709 | Rate dependent transmission gain control for WLAN systems A WLAN (Wireless Local Area Network) transmission technique is provided where data is transmitted in two or more different transmission modes at different transmission rates. A transmission gain is determined to be applied when transmitting data. The transmission ga... | 03/25/2008 |
| 7333782 | Automatic gain controller for achieving high signal-to-noise ratio and low power loss, and a transmitting apparatus and method for use with a mobile communication terminal having the automatic gain controller Provided is an automatic gain controller for obtaining a high a signal-to-noise ratio (SNR), and for reducing power loss by controlling a gain until the gain reaches a maximum value, and a transmitting apparatus and method for use with a mobile communication termina... | 02/19/2008 |
| 7333788 | Method for calibrating automatic gain control in wireless devices Disclosed herein is an iterative process for calibrating an AGC in a wireless system, wherein the iterative process includes transmitting a calibration signal, receiving the calibration signal, decoding the calibration signal to produce a measurement, storing the me... | 02/19/2008 |
| 7324799 | Multiband mixer The invention relates to a device for frequency conversion, comprising exactly one multi-band mixer (3) with means for transferring a signal (2) that is applied to the signal input of said multi-band mixer (3) from said signal's source frequency... | 01/29/2008 |
| 7318081 | Band-pass filter and tracking signal processor circuit A band-pass filter includes two operational amplifiers. The gm values of the operational amplifiers are each determined by a current flowing through a corresponding transistor for inducing flow of the drive current. The current flowing through the transistor is adju... | 01/08/2008 |
| 7313370 | Intermodulation product cancellation in communications Intermodulation products in the amplifier circuitry of a communications device are cancelled. A primary carrier is processed in a first main branch of amplifier circuit. The primary carrier is coupled to a secondary branch through a first signal splitters. Intermodu... | 12/25/2007 |
| 7308238 | Automatic frequency controlling apparatus and method of mobile communication terminal An apparatus and method for performing automatic frequency control of a mobile communication terminal detects a current peak position value from a downlink pilot signal and then calculates a difference value (dev) between the current peak position and a previous pea... | 12/11/2007 |
| 7308037 | Radio receiving apparatus and method Radio receiving apparatus includes antennas, radio units adjusting gains of received signals, and outputting the adjusted received signals, respectively, converters converting the adjusted received signals into digital signals, selector device which selects several ... | 12/11/2007 |
| 7302241 | Wireless receiver without AGC A wireless communication unit (300) incorporates a receiver comprising radio frequency circuitry (210, 220, 230, 240) for receiving a radio frequency signal and converting the radio frequency signal to a low frequency signal. A signal level adjustment circuit receiv... | 11/27/2007 |
