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Class Information
Number: 455/67.11
Name: Telecommunications > Transmitter and receiver at separate stations > Having measuring, testing, or monitoring of system or part
Description: Subject matter which relates to means intended solely for the purpose of and adapted to (a) adjust the frequency setting of a carrier wave generation means or determine the output frequency or some other characteristics of a transmitter means; (b) adjust the frequency setting of a local oscillator, a tuning means or other stages of a receiver means in accordance with a standard frequency; c) compare the frequency of a resonant input or output circuit of a receiver or transmitter with a standard frequency for the purpose of setting a tuning position indicator or dial to correspond to maximum transmitter or receiver output at the standard frequency; and (d) determine the operating characteristics of the whole or selected components of the system under prescribed conditions of operation.


Sub-classes under this class:

Class Number Class Name Patents
455/67.13 Noise, distortion, or unwanted signal detection (e.g., quality control, etc.) 1,001
455/67.15 Of a microwave link or system 75
455/67.16 Phase measuring (e.g., group delay, propagation effect, etc.) 329
455/67.12 Using a chamber (e.g., room testing or audio surveillance, etc.) 73
455/67.14 Using a test signal 449
455/67.7 With indication (e.g., visual or voice signalling, etc.) 253


Patents under this class:
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Patent Number Title Of Patent Date Issued
7319847 Bitwise monitoring of network performance Jan. 15, 2008
7319846 Colored interference identification Jan. 15, 2008
7315745 Radio positioning systems Jan. 1, 2008
7315728 Polarized wave measuring apparatus, and antenna characteristic measuring apparatus and radio wave measuring apparatus using the same Jan. 1, 2008
7313402 System and method for evaluating accuracy of an automatic location identification system Dec. 25, 2007
7313392 Mobile station apparatus capable of displaying better communication locations for power saving and method of the same Dec. 25, 2007
7313125 OFDM demodulation method and semiconductor integrated circuit device Dec. 25, 2007
7313113 Dynamic transmit power configuration system for wireless network environments Dec. 25, 2007
7310538 Symbol estimation-based decorrelator for directing beams and nulls to remote users in a wireless communications system Dec. 18, 2007
7310529 Packet data traffic control for cellular wireless networks Dec. 18, 2007
7310504 IF frequency response characterization employing overlapping frequency bands Dec. 18, 2007
7308285 Antenna adaptation in a time division duplexing system Dec. 11, 2007
7308262 Controller and control method for mobile communication system Dec. 11, 2007
7308233 System employing wideband wireless communication with super cycle detection Dec. 11, 2007
7308232 Method and apparatus for estimating a channel based on channel statistics Dec. 11, 2007
7305215 Radio link check Dec. 4, 2007
7305214 Received response characteristics storing method and radio apparatus utilizing the same Dec. 4, 2007
7302276 Method and system for determining uplink/downlink path-loss difference Nov. 27, 2007
7302267 Apparatus and method for estimating a velocity of a mobile terminal in a mobile communication system Nov. 27, 2007
7302263 Handover in a mobile communication system Nov. 27, 2007
7302240 Communication apparatus Nov. 27, 2007
7302238 Transmit diversity system, method and computer program product Nov. 27, 2007
7302234 Portable interference-generating device for use in a CDMA mobile testing Nov. 27, 2007
7302233 Multiuser detection for wireless communications systems in the presence of interference Nov. 27, 2007
7299059 Positioning technique Nov. 20, 2007
7299055 Geographic representation of end user fixed wireless communication device Nov. 20, 2007
7299013 Apparatus and method for correcting doppler shift in mobile communication systems Nov. 20, 2007
7299010 Apparatus and method for estimating a velocity of a mobile terminal in a mobile communication system Nov. 20, 2007
7298793 Method and apparatus for I/Q mismatch calibration of transmitter Nov. 20, 2007
7295860 Radio communication apparatus Nov. 13, 2007
7295844 System and method for routing communications based on wireless communication link quality Nov. 13, 2007
7295831 Method and system for wireless intrusion detection prevention and security management Nov. 13, 2007
7295813 Current reduction by dynamic receiver adjustment in a communication device Nov. 13, 2007
7295812 Method and apparatus providing adaptable current consumption for mobile station based on macrocell/microcell determination Nov. 13, 2007
7295811 Method for performing measurements for handoff of a mobile unit operating with a switched beam antenna in a wireless communication system, and corresponding system Nov. 13, 2007
7295806 Using directional antennas to enhance wireless mesh networks Nov. 13, 2007
7295538 Radio transmission device and transmission rate decision method Nov. 13, 2007
7292877 Apparatus and method for calibrating and compensating for distortion of an output signal in a smart antenna Nov. 6, 2007
7292871 Method for synchronizing mobile communication terminal with neighbor cell in call connection state Nov. 6, 2007
7292863 Admission control method and device in mobile communication system Nov. 6, 2007
7292825 Retransmission scheme in a cellular communication system Nov. 6, 2007
7289830 System and method for vehicle module wake up in response to communication activity Oct. 30, 2007
7289828 Method for steering a smart antenna for a WLAN using a periodic re-scan Oct. 30, 2007
7289802 Communication terminal performance measurement system having effective trace information display function and communication terminal performance measurement method Oct. 30, 2007
7289766 System and method to initiate reliable reception on a packet data channel in a wireless communications network Oct. 30, 2007
7286952 Method for testing subscriber access lines Oct. 23, 2007
7286824 Method for controlling data transmission rate in interactive satellite communication system Oct. 23, 2007
7286802 Wireless simulator Oct. 23, 2007
7286801 Maintaining and searching sets of cells in a wireless communication system Oct. 23, 2007
7283792 Method and apparatus for providing limiting power adjustment in a wireless communication system Oct. 16, 2007

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