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| Number | Title | Issue Date |
| 7983643 | Frequency demodulation with threshold extension A frequency demodulator comprises a frequency discriminator configured to generate a frequency modulation signal from frequency modulated signal, circuitry for generating a phase modulation signal from the frequency modulation signal, and a click reduction signal pr... | 07/19/2011 |
| 7440738 | Automatic gain control with two power detectors A receiver (100) adjusts its overall gain based on the detected power level of an incoming signal. The receiver is built with two detectors (D1, D2) which operate with different detecting ranges within the dynamic range of the incoming signal. I... | 10/21/2008 |
| 7386289 | Microwireless integrated environmental sensor and transmitter system The invention is a microminiature wireless environmental sensor that has integrated both sensor and transmitter functions into one function. The basic operating principle for the device is that variable components of an RF circuit can be interfaced to the outside wo... | 06/10/2008 |
| 7369836 | Adjacent interference removal device An adjacent interference removal device capable of providing an improved reception quality. An IF signal Sin having passed through an IF filter having a pass frequency band width of 200 kHz is supplied to a first narrow band filter having a pass frequency band width... | 05/06/2008 |
| 7369874 | Apparatus and method for improving GPS receive sensitivity in mobile terminal Provided is a Global Positioning System (GPS) receive sensitivity-improving apparatus and method in a Code Division Multiple Access (CDMA) mobile terminal, which improves a GPS receive sensitivity by preventing a reference frequency variation caused by a thermal tra... | 05/06/2008 |
| 7356322 | Multiple-branch wireless receiver A wireless receiver detects signals received at two or more antennas, with each antenna coupled to an input receive chain. A switch is employed to couple selected input receive chains to one or more corresponding output receive chains during listening, coarse-detect... | 04/08/2008 |
| 7336932 | Narrow band communication vehicle-mounted apparatus The present invention provides a narrow band communication vehicle-mounted apparatus capable of performing communication in which there are normally no discrepancies with on-road systems when the apparatus starts up. The narrow band communication vehicle-mounted app... | 02/26/2008 |
| 7333339 | Heat dissipation system for a miniaturized form factor communications card A heat dissipation system for a miniaturized form factor card allows a communications system for mobile information devices contained in the card to operate with high heat loads by employing a high conductivity pad on the printed circuit board of the mobile informat... | 02/19/2008 |
| 7330709 | Receiver circuit using nanotube-based switches and logic Receiver circuits using nanotube based switches and logic. Preferably, the circuits are dual-rail (differential). A receiver circuit includes a differential input having a first and second input link, and a differential output having a first and second output link. ... | 02/12/2008 |
| 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 |
| 7321787 | Power management method and apparatus of wireless local area network module in computer system A power management method and apparatus for a wireless LAN module in a computer system may include a communication sensitivity checking unit for checking a communication sensitivity of a wireless communications channel. If a communications sensitivity is lower than ... | 01/22/2008 |
| 7317903 | Wireless communication circuit, wireless communication apparatus, and wireless communication system A wireless communication circuit in accordance with the present invention, is the wireless communication circuit having an amplifier for amplifying a signal, includes an amplification route in which the signal passes through the amplifier; a bypass route for bypassi... | 01/08/2008 |
| 7313380 | Variable resolution A/D converter A variable resolution analog-to-digital converter includes a sample-and-hold circuit including a plurality of sample-and-hold units which are connected in parallel and selectively activated corresponding to a required resolution to sample and hold an analog input si... | 12/25/2007 |
| 7313378 | Tracking automatic gain control An automatic gain control provides for enhanced acquisition and tracking of wireless signals. The wireless signals may include signals using electrostatic fields, magnetic fields, or electromagnetic fields. In an embodiment, wireless signals are provided as radio fr... | 12/25/2007 |
| 7298205 | Amplifier and frequency converter An amplifier circuit amplifies a signal inputted from an input terminal. A first feedback circuit is placed across an emitter of a bipolar transistor and an input of the amplifier circuit. A second feedback circuit is placed across the input and an output of the amp... | 11/20/2007 |
| 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 |
| 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 |
| 7280848 | Active array antenna and system for beamforming An active antenna array for use in a beamforming antenna system. The antenna array includes multicarrier power amplifiers coupled to each antenna element wherein the outputs of the multicarrier power amplifiers are linearized. The antenna array communicates with a b... | 10/09/2007 |
| 7277727 | System and method for processing a signal A system and method for receiving a communication signal includes a timing source that generates a stable timing signal and a stabilized local oscillator that receives the stable timing signal and uses the stable timing signal as an input to generate a stabilized os... | 10/02/2007 |
| 7236760 | Tuner for reception of a broadband radio frequency signal A tuner is provided for selecting a channel from a broadband radio frequency input signal containing a plurality of channels, such as a terrestrial broadcast signal. The tuner has an input which supplies the broadband signal to a filter. The output of the filter is ... | 06/26/2007 |
| 7200374 | Method and apparatus to improve throughput in a wireless network using a minimum received interference power level Aggregate throughput may be improved in a wireless network by rejecting packets that have a low probability of creating harmful interference within a wireless device. In at least one embodiment, a minimum received interference power level that is likely to cause a l... | 04/03/2007 |
| 7177610 | Calibrated low-noise current and voltage references and associated methods A low-noise current reference circuitry includes a voltage source, a current source, and a controller. The voltage source generates a reference voltage. The current source provides a low-noise output current in response to a control signal. The controller provides t... | 02/13/2007 |
| 7148747 | Apparatus for automatically controlling a gain of a power amplifier and associated methods An apparatus for automatically controlling a gain of a power amplifier includes a reception-signal detecting unit which detects a reception signal; a reference-voltage generating unit which generates a reference voltage; a gain control voltage detecting unit which c... | 12/12/2006 |
| 7149480 | Receiver device A receiver device for receiving incoming radio waves by using a plurality of antennas, which is capable of improving the maximum input sensitivity is provided. In the receiver device, a switching unit switches to an antenna having the lower antenna gain as a new rec... | 12/12/2006 |
| 7120408 | Differential signal squelch detection circuit and method An electrical circuit detects a “squelch,” or “out-of-band,” state of a differential signal pair having a positive (“p”) signal line and a negative (“n”) signal line. In one embodiment of the invention, a first and a second comparator each have posit... | 10/10/2006 |
| 7116959 | Apparatus for selecting a receiver among a plurality of receivers in a diversity receiver system based upon automatic gain correction A diversity receiver system includes a plurality of radio receivers that each provide a uniquely associated receiver output signal and a uniquely associated receiver control signal indicative of the amount of gain applied by the associated radio receiver to create t... | 10/03/2006 |
| 7110444 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 09/19/2006 |
| 7110435 | Spread spectrum applications of universal frequency translation Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified up-conversion and spreading, RAKE receivers utilizing unified down-conversion an... | 09/19/2006 |
| 7088954 | Wireless communication device A wireless communication apparatus of the present invention has an interference signal cutoff circuit (10) for cutting off electric waves having interference frequencies of Δf=|frx±ftx| interposed between a receiving antenna (1) and a receiver (5 | 08/08/2006 |
| 7085672 | Surveying apparatus with network communications A surveying apparatus is provided that includes devices for measuring a range and angle of a point, a processor for processing results of a location survey from the range and angle measurements, a memory for storing the processed data of the location survey, a trans... | 08/01/2006 |
| 7082171 | Phase shifting applications of universal frequency translation A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT modul... | 07/25/2006 |
| 7076224 | Process for controlling the gain of a frequency tuner, and corresponding tuner, in particular for the reception of terrestrial digital television signals A method and device are disclosed for receiving digital television signals by a frequency tuner. The power of the signal is measured after an analog/digital conversion in the frequency tuner, and the gain thereof is controlled on the basis of this power measurement ... | 07/11/2006 |
| 7072390 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 07/04/2006 |
| 7054296 | Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, ... | 05/30/2006 |
| 7054605 | Variable-gain low noise amplifier to reduce linearity requirements on a radio receiver Variable gain low noise amplifier (LNA) system to reduce linearity requirements on a radio receiver. In the receiver, the LNA is coupled to receive an RF signal and produce an amplified signal at an LNA output. The receiver also comprises a VGA coupled to the LNA ou... | 05/30/2006 |
| 7043026 | Method for removing AM neighboring interference and a circuit for the same An AM neighboring interference removing method and circuit is provided which can select only a desired AM modulation wave even if an interference AM modulation wave is partially superposed upon the desired AM modulation wave. An AM modulation wave desired to be rece... | 05/09/2006 |
| 7039372 | Method and system for frequency up-conversion with modulation embodiments A method and system is described wherein an information signals is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In ... | 05/02/2006 |
| 7035610 | AGC circuit of receiver using several local oscillation frequencies An AGC circuit maintains a fixed level for starting AGC operation for an interference wave even if the local oscillation frequency is switched in a receiver that has a plurality of local oscillation frequencies. A frequency correction circuit for correcting the conv... | 04/25/2006 |
| 7035346 | Method and apparatus for desensitization of a wireless receiver A receiver desensitization system sets the sensitivity of a receiver by injecting a desensitization signal appearing as noise onto a receive path of the receiver to adjust the noise power level relative to the power level of signals on the receive path. For example,... | 04/25/2006 |
| 7031683 | Apparatus and methods for calibrating signal-processing circuitry A calibration circuitry includes an adjustable capacitor, a voltage generator, a reference voltage generator, and a controller. The reference voltage generator provides a reference voltage. The voltage generator provides a measurement voltage that depends on the cap... | 04/18/2006 |
