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| Number | Title | Issue Date |
| 8078132 | Selectively skipping listen windows in power saving mode in multi-mode radio handsets Disclosed is a method of selectively skipping one or more listen windows during power saving (i.e., sleep mode) operation in a multi-mode radio handset capable of operating on a plurality of radio access networks (RANs). A multi-mode radio handset signals a base sta... | 12/13/2011 |
| 8045948 | Receiving apparatus, program and receiving method A receiving apparatus includes a receiving portion to receive a radio signal generated based on one baseband signal of a baseband signal having a prescribed frequency band and a baseband signal having a partial frequency band being a part of the prescribed frequency... | 10/25/2011 |
| 8005452 | Digital comb limiter combiner A wideband receiver comprises a comb limiter combiner wherein the limiting is conducted by digitization and frequency excision in the frequency domain. The received signal is divided up into sub-bands by a bank of bandpass filters having contiguous pass bands spanni... | 08/23/2011 |
| 7970371 | Receiving apparatus, program and receiving method A receiving portion for receiving a wireless signal generated on the basis of a baseband signal having either a predetermined frequency band or a baseband signal having any of partial frequency bands; a signal processing portion for generating the baseband signal; a... | 06/28/2011 |
| 7711345 | Receiving circuit and receiving method A received circuit receives a plurality signals generated by modulating carrier waves having the substantial same frequency according to digital signals having different bitrates output from a plurality of systems. The receiving circuit includes a front-end portion ... | 05/04/2010 |
| 7502604 | Wireless environment method and apparatus A method and apparatus are provided for a first controlled device, such as a wireless local transmitter that accepts a plurality of digital audio signals and corresponding program information signals converted from a controlled source, such as the encoded digital da... | 03/10/2009 |
| 7450924 | Interference cancellation and receive diversity for single-valued modulation receivers A combined SAIC receiver and a multiple-antenna, receive diversity receiver are employed to reduce interference in a wireless system. The real and imaginary parts of the de-rotated signal for each receive path associated with an antenna are separately filtered and a... | 11/11/2008 |
| 7444129 | Comb-line wireless filter A comb-line wireless filter (5) includes an input end (505a), an output end (505b), a first transmission line (501b), a second and third transmission line (501a, 501c) each having a curved ... | 10/28/2008 |
| 7418248 | Signal reception device, signal transmission device, radio communication system, and signal reception method A signal reception device is disclosed that is able to improve interference cancellation capabilities even when signals having different center frequencies exist on the same frequency band. The signal reception device includes an interference suppression unit to gen... | 08/26/2008 |
| 7388860 | Network communication apparatus, communication system and communication method A network terminal apparatus in a type of directly connecting to a packet communication network, with an interface for connecting to a circuit under an environment of an SIP terminal network, and a capability of carrying out facsimile transmission/reception, carries... | 06/17/2008 |
| 7372302 | High speed, out-of-band differential pin driver A driver block for a differential pin driver that supports out-of-band signaling. The driver block includes a main enable switch that is controlled by a high speed driver inhibit (DINH) signal. The main enable switch controls coupling between a main current source a... | 05/13/2008 |
| 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 |
| 7366243 | Methods and apparatus for transmitting non-contiguous spread spectrum signals for communications and navigation A technique for transmitting a spread spectrum signal using plural non-contiguous frequency bands separated by segments of frequency spectrum excluded from use involves: generating a digital time-domain spread spectrum signal; converting the time-domain signal to a ... | 04/29/2008 |
| 7363063 | Mobile wireless communications device with reduced interference from the keyboard into the radio receiver A mobile wireless communications device includes a housing and circuit board carried by the housing. Radio frequency (RF) circuitry carried by the circuit board forms a transmitter and receiver. A processor is carried by the circuit board and operative with the RF c... | 04/22/2008 |
| 7346326 | Mobile communication terminal with equalizer function Disclosed is a mobile communication terminal which is provided with an equalizer function of audio equipment to adjust a timbre of transmitting/received speech sounds so as to satisfy a great number of users having various individualities and tastes simultaneously. ... | 03/18/2008 |
| 7346173 | Method and circuit assemblage for influencing the treble reproduction of an audio signal A method for influencing, e.g., for decreasing, the treble reproduction of an audio signal for reproduction obtained from a received signal, the received field strength and reception quality of the received signal being evaluated and, as a function thereof, the tran... | 03/18/2008 |
| 7343143 | Radio receiver with operation state setting unit There is provided a radio receiver which can set a proper receive state regardless of the existence of an adjacent station. If an adjacent station detection circuit detects an IBOC station having a carrier frequency adjacent to a receive frequency, a control unit tr... | 03/11/2008 |
| 7340069 | System and method for split automatic gain control A system and method for automatically controlling gain in a signal chain are presented. A first signal is processed to produce a processed signal. A gain is adjustably applied to the processed signal using an automatic gain control (AGC) mechanism. A resulting signa... | 03/04/2008 |
| 7336736 | Method of detecting and processing pulsed signals in a radio signal The invention allows the detection and processing in a radio signal received by a receiver, of any signal of “pulsed” type present in radio signals applied to the input of a radiofrequency receiver, the receiver having an analogue/digital converter for performin... | 02/26/2008 |
| 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 |
| 7317698 | Interference detection, identification, extraction and reporting An adaptive notch filter (ANF) module selectively filters a received wideband communication signal to eliminate narrowband interference that lies within the frequency spectrum of the wideband communication signal. To determine the presence of narrowband interference... | 01/08/2008 |
| 7315730 | Architecture for a receiver front end having dual output low noise amplifier driving separate pre-selectors coupled to a transformer for single ended output An architecture for a receiver front end utilizes a dual output low noise amplifier (102) driving separate, fixed preselectors (104, 106) coupled to a transformer (108) to generate a single ended output (113). A pair of blocks coupled in ... | 01/01/2008 |
| 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 |
| 7280059 | Systems and methods for mixing domains in signal processing Signal processors that incorporate two or more domains in the design are provided. In certain embodiments, nonlinear processing is combined with linear processing. For example, in some embodiments, the signal processors may include a preprocessor, a plurality of ana... | 10/09/2007 |
| 7277475 | Narrowband interference excision device A narrowband interference excision method and apparatus. According to one embodiment, a method for narrowband interference excision is disclosed. The method comprising transforming time domain data into a frequency domain vector having a plurality of frequency bins.... | 10/02/2007 |
| 7274326 | System for digital multi-bandwidth intermediate frequency processing and tracking Signal processing systems for radar installations are provided for simultaneous processing of one or more IF signals of dynamically varying frequency and bandwidth with a single analog signal path. The signal processing system includes, but is not limited to, a conv... | 09/25/2007 |
| 7272641 | Image information managing system An information managing system for browsing or transferring images between apparatuses is connected to a network. In this system, an information storage apparatus such as an image pickup apparatus, an information managing apparatus such as an image server, and an in... | 09/18/2007 |
| 7257171 | Method and apparatus for reference symbol aided channel estimation A system that includes a receiver (100) that is configured for: selecting (210) a set of demodulator output samples and a corresponding set of reference symbols; generating (220) a set of raw channel estimates based on the set of demodulator out... | 08/14/2007 |
| 7242334 | Wireless receiver circuit with merged ADC and filter A CMOS hybrid analog-digital receiver core where filtering and gain functions are implemented in the digital domain. The analog portion of the receiver core includes standard circuits such as a low noise amplifier for receiving an RF input signal, and a mixer circui... | 07/10/2007 |
| 7233633 | Channel estimation using linearly constrained filter coefficients A system that includes a receiver (100) that is configured for: selecting (210) a set of demodulator output samples and a corresponding set of reference symbols each having a magnitude; generating (220) a set of raw channel estimates based on th... | 06/19/2007 |
| 7233780 | Method and apparatus for performing DC offset cancellation in a receiver An amplification system for reducing DC offset in an input signal uses a low pass filter to isolate a DC component of the input signal. The system then subtracts the DC component from the input signal. In one embodiment, the system includes first and second amplifie... | 06/19/2007 |
| 7231189 | Transmit and/or receive channel communication system with switchably coupled multiple filtering components A communication system includes a front-end multi-throw switch, a back-end multi-throw switch, multiple filters and a switch controller. The front-end multi-throw switch includes front-end throws and a front-end pole. The front-end pole is coupled to a receive chann... | 06/12/2007 |
| 7228110 | Low cost high frequency device having compact mounting area, high frequency amplification method, wireless communication device and mobile telephone including low cost and high frequency circuit having compact mounting area A high frequency device includes a transmission/reception amplifier 13 that amplifies and outputs an input signal, and a transmission/reception switch 2 that gang switches internally so that during transmission an input of the transmission/reception am... | 06/05/2007 |
| 7224726 | System and method for terrestrial high-definition television reception An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characte... | 05/29/2007 |
| 7209514 | GPS receiving apparatus and GPS satellite signal receiving method Disclosed is a GPS receiving apparatus including a synchronous acquisition unit and a synchronous hold unit. The synchronous acquisition unit detects a correlation between a spread code of a received signal from a GPS satellite and a spread code provided by the appa... | 04/24/2007 |
| 7206564 | System and method to perform adaptive channel filtering on a radio frequency burst in a cellular wireless network A method to perform adaptive channel filtering on a Radio Frequency (RF) bursts in a cellular wireless communication system. This method first filters an input signal with a first stage filter having a first bandwidth to produce a first stage output signal. Then the... | 04/17/2007 |
| 7200377 | Method and system for multi-channel RF digitization with analog selectivity A system (10) and method (100) for digitizing a complete band of RF channels to allow simultaneous processing of more than one channel. Multiple tunable bandpass filters (14) are used for the particular channels to be processed. The filter outpu... | 04/03/2007 |
| 7197293 | Absorbing sum signal energy in a mixer A frequency mixer that generates out of phase sum signals and uses the out of phase relationship to absorb sum signal energy in an energy absorbing component. A frequency mixer according to the present teachings includes a set of mixing devices that generate a first... | 03/27/2007 |
| 7197291 | Multimode receiver and method for controlling signal interference A multimode wireless receiver circuit (10) includes multi-receiver control and interference detection logic (50) and least two separate receivers: a first receiver (20) associated with a first radio access technology and a second receiver (30... | 03/27/2007 |
