Class 455/161.1 - Frequency scanning

Subclass of Class 455 - Telecommunications
Definition: Subject matter in which the selection means includes means
No. of applications: 32
Last issue date: 07/07/2011

Application No.	Application Title	Issue Date
20110165850	SYSTEMS AND METHODS FOR MULTI-CHANNEL SEQUENTIAL DETECTION IN COGNITIVE RADIO SYSTEMS Systems and methods for detecting unoccupied channels for a multi-channel cognitive radio system are described. To detect unoccupied channels, truncated sequential detection processes are employed that can use a dynamically extended truncation time that is based on earl...	07/07/2011
20110085612	COGNITIVE RADIO SYSTEM, COGNITIVE RADIO APPARATUS, AND RADIO SIGNAL DETECTION METHOD A radio system includes: a memory which stores a system parameter and a pseudo parameter, the system parameter being used for generation of a feature value specific to a search target radio system, the pseudo parameter being similar to the system parameter; a feature va...	04/14/2011
20110003568	APPARATUS AND METHOD FOR SEARCHING RADIO CHANNEL IN A PORTABLE TERMINAL An apparatus and method for searching for an improved radio broadcast in a portable terminal are provided. The apparatus includes a radio function performance unit. If an input for a radio broadcast channel search is detected while listening to a radio broadcast, the ra...	01/06/2011
20100311370	RADIO WAVE RECEIVER Disclosed is a radio wave receiver including an antenna to receive a radio wave, a tuning unit to switch a frequency characteristic of the antenna in a stepwise fashion, an oscillation unit to oscillate the antenna and a circuit section of the tuning unit, a receiving p...	12/09/2010
20100240334	Broadcast Receiver and Method for Regulating the Same A broadcast receiver includes a tuner circuit and a demodulator circuit. The tuner circuit tunes a radio frequency (RF) signal to output an intermediate frequency (IF) signal. The demodulator circuit demodulates the IF signal from the tuner circuit and outputs a command...	09/23/2010
20100240333	METHOD AND APPARATUS FOR PROGRESSIVELY SCANNING CHANNELS A method for progressively scanning channels first checks whether all channel scanning tasks are completed so as to determine a channel that will be scanned first. During the scanning process, the method records a channel as a last scanned channel after completing a cha...	09/23/2010
20100234063	MOBILE RADIO COMMUNICATION DEVICES AND METHODS FOR CONTROLLING A MOBILE RADIO COMMUNICATION DEVICE In an embodiment, a mobile radio communication device is provided. The mobile radio communication device may include a receiver configured to receive radio pilot information via a predefined physical radio channel according to a radio communication technology family, wh...	09/16/2010
20100197253	BROADCASTING RECEIVER, BROADCASTING IDENTIFICATION METHOD, BROADCASTING IDENTIFICATION PROGRAM, AND RECORDING MEDIUM THEREFOR While sequentially changing the selected channel, a digital broadcast judgment part collects level value V_Wof a signal extracted on a wide band, a bandwidth suitable for reproduction of an analog broadcast, reported from a reproduction processing unit as the...	08/05/2010
20100184395	Adaptive Channel Scanning For Detection And Classification Of RF Signals An approach and apparatus for adaptive scanning for detection and classification of an RF signal. Time-domain and frequency-domain information are acquired and processed over a broad band of frequencies segmented into channels to produce signal features. The signal feat...	07/22/2010
20100087158	FULL FREQUENCY SCANNING METHOD AND CHANNEL PARAMETER ADJUSTING METHOD FOR SMART ANTENNA An adjusting method for a smart antenna is provided. The adjusting method divides all possible reading directions of the smart antenna into a plurality of scanning directions and a plurality of idle directions by a first form. In searching for the optimal parameters of ...	04/08/2010
20100060786	METHOD AND APPARATUS FOR SCANNING CHANNEL Method and apparatus for scanning channels of a broadcast receiver are provided. The channel scanning method includes determining whether to perform an entire channel scanning operation or a partial channel scanning operation in response to a channel scan command, if th...	03/11/2010
20100029231	Look -Up Table for Control of Power Output From FM Transmitters A system and method for optimizing the performance of RF devices having a transmitter and an antenna that function at multiple frequencies. Due to regulatory limits on radiation output, and because antenna gain varies with frequency, transmitter power has been constrain...	02/04/2010
20090298452	METHOD FOR SCANNING FREQUENCY, RECEIVER, AND COMPUTER-READABLE RECORDING MEDIUM A receiver according to the present invention has a reception unit which receives reception signals; a storage unit which stores a band table, in which a plurality of frequency bands serving as scanning targets are registered so that the frequency bands correspond to ba...	12/03/2009
20090275299	FREQUENCY TRACKING FOR A FMR TRANSMITTER A method and device for transmitting audio data and text data to an RDS capable radio receiver by a wireless device is disclosed. The device includes a receiver for scanning a frequency range to detect an available radio frequency based on predetermined criteria. The de...	11/05/2009
20090247098	System and Method for Autoranging in Test Apparatus A system for receiving signals and performing autoranging is disclosed. The system includes an adjustable attenuator at an input. A mixer combines the input signal with a tuning frequency to generate a mixed signal. The mixed signal is filtered to generate a component o...	10/01/2009
20090227220	CHANNEL DETECTING APPARATUS AND TUNER TESTING APPARATUS COMPRISING SAME An improved channel detecting apparatus is provided for detecting a channel. The channel detecting apparatus comprises a channel search circuit (3). When a certain frequency is detected through a search sweep using a frequency sweep signal for a channel, the chan...	09/10/2009
20090197550	Correlation-based detection in a cognitive radio system A user equipment senses a plurality of wireless signals it receives; estimates cyclic correlation of the received signals using a multi-variate sign function; determines from the estimated cyclic correlation which ones of the signals are detected based on cyclostationar...	08/06/2009
20090102981	SPECTRUM SENSING FUNCTION FOR COGNITIVE RADIO APPLICATIONS A method and system are disclosed to detect a broad class of signals including Advanced Television Systems Committee (ATSC) digital television (DTV) and wireless microphone signals. This signal detection method performs in Gaussian noise, employing Higher Order Statisti...	04/23/2009
20090068970	SCANNING FREQUENCY OPTIMIZATION FOR ALTERNATE NETWORK ACCESS IN DUAL MODE WIRELESS DEVICES A method, information processing system, and wireless device are disclosed for managing network scanning intervals. The method includes detecting a new wireless network coverage area (130). At least one local dynamic scanning profile (110) is analyzed in r...	03/12/2009
20090068969	Power-Aware Selection of Radio Access Technology Methods and apparatus are disclosed for operating a multi-mode wireless communications device to select a radio access technology (RAT) requiring the lowest energy consumption by the device for a desired operating mode. An exemplary method comprises scanning a plurality...	03/12/2009
20080299925	Method And System For Processing Channels In A FM Communication System A method and system for processing channels in a FM communication system are provided. The FM communication system using the method or program may include adjusting a tuning frequency of a FM receiver for scanning and detecting an FM channel based on one or more of know...	12/04/2008
20080261547	Methods and Apparatus for RF Channel Selection in a Multi-Frequency Network Methods and apparatus for RF channel selection in a multi-frequency network. A method includes identifying selected local operations infrastructures (LOIs) and their neighboring LOIs, generating a neighbor description message (NDM) that identifies the selected LOIs and ...	10/23/2008
20080139213	Power-Efficient Intelligent Reception Embodiments of the present disclosure relate to a method, system, apparatus, receiver module, and computer program product which may provide a power-efficient reception. In an example embodiment, at least one spectrum available for a desired communication may be scanned...	06/12/2008
20080096501	METHODS AND APPARATUS FOR IMPROVED SCANNING OF A RADIO FREQUENCY (RF) BAND FOR WLANs IN AN UNKNOWN REGULATORY DOMAIN Methods and apparatus for use in scanning a radio frequency (RF) band for wireless local area networks (WLANs) while regulatory information for the RF band is deemed unknown are disclosed. A mobile communication device includes one or more processors and a wireless tran...	04/24/2008
20080090533	METHOD AND SYSTEM FOR COMPENSATING FOR USING A TRANSMITTER TO CALIBRATE A RECEIVER FOR CHANNEL EQUALIZATION Aspects of a method and system for compensating for using a transmitter to calibrate a receiver for channel equalization are provided. Various embodiments of the invention may be applicable wireless devices in TDM systems, Bluetooth, and/or WLAN applications, for exampl...	04/17/2008
20080070523	Passive and active scanning in wireless network Embodiments of techniques to perform passive and active scanning in a wireless network are presented herein....	03/20/2008
20080064348	Method and Apparatus for Identifying Unused RF Channels A wireless connection apparatus which scans radio frequency bands for local quiet unused, vacant, or unassigned frequencies which the apparatus can use, on a temporary basis, to establish a link for communicating between a portable multimedia device and a nearby RBDS/RD...	03/13/2008
20080064347	Method and Apparatus for Identifying Unused RF Channels A wireless connection apparatus which scans radio frequency bands for local quiet unused, vacant, or unassigned frequencies which the apparatus can use, on a temporary basis, to establish a link for communicating between a portable multimedia device and a nearby RBDS/RD...	03/13/2008
20080057888	SYSTEM AND METHOD FOR SELECTING A FREQUENCY FOR PERSONAL-USE FM TRANSMISSION A portable electronic device includes a radio frequency receiver; a radio frequency transmitter; and a processing system coupled with the receiver and transmitter. The processing system directs the receiver to scan a radio frequency spectrum for available radio channels...	03/06/2008
20080014880	Signalling method of detecting hidden incumbent system in cognitive radio environment and channel fractioning method used to enable the method A signaling method between a cognitive radio (CR) base station and a CR terminal in a CR environment, and a channel division method used for the signaling method, includes: detecting a channel usage of an incumbent system, which communicates with a CR base station; sens...	01/17/2008
20080003961	APPARATUS AND METHOD FOR SCANNING RADIO WAVES An apparatus for scanning radio waves including a scanner in operable communication with a radio receiver, the scanner further including a monitor module configured to scan a plurality of radio waves in real time. The monitor module is further configured to extract audi...	01/03/2008
20070298738	METHOD FOR MANAGING SCANNING OF CHANNELS IN A WIRELESS NETWORK A method for managing scanning of a plurality of channels in a wireless network is disclosed. The method comprises detecting by a station that a first channel in a plurality of channels is being used for a communication by another station, determining a duration of the ...	12/27/2007

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Class 455/161.1 - Frequency scanning