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Class Information
Number: 455/226.1
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Measuring or testing of receiver
Description: Subject matter comprising means which, in use, determines qualitatively or quantitatively, a receiver characteristic.

Sub-classes under this class:

Class Number Class Name Patents
455/226.2 Signal strength 588
455/226.3 Signal-to-noise ratio 326
455/226.4 With meter or indicator 229

Patents under this class:

Patent Number Title Of Patent Date Issued
8712430 System and method for deriving cell global identity information Apr. 29, 2014
8712337 Real-time RSL monitoring in a web-based application Apr. 29, 2014
8705675 Device and method for receiving RF signals based on heterodyne architecture using complex IF subsampling Apr. 22, 2014
8693968 Very low intermediate frequency (VLIF) receiver Apr. 8, 2014
8693957 Signal transceiving module Apr. 8, 2014
8688159 Method and apparatus for use of expected signal strength difference to improve channel selection Apr. 1, 2014
8688065 Method to measure total noise temperature of a wireless receiver during operation Apr. 1, 2014
8688052 Apparatus and method for phase noise self-test Apr. 1, 2014
8688048 RSSI slope calibration technique Apr. 1, 2014
8687684 Apparatus and method for calibrating the I/Q mismatch in a quadrature bandpass sampling receiver Apr. 1, 2014
8682251 Apparatus and methods for estimation of a subchannel power imbalance ratio (SCPIR) Mar. 25, 2014
8676188 Apparatus, system and method for calibrating and verifying a wireless communication device Mar. 18, 2014
8675078 Test technique for set-top boxes Mar. 18, 2014
8670738 Imbalance compensator for correcting mismatch between in-phase branch and quadrature branch, and related imbalance compensation method and direct conversion receiving apparatus thereof Mar. 11, 2014
8670734 Searcher detection metrics Mar. 11, 2014
8670478 Load estimation in frequency domain pre-equalization systems Mar. 11, 2014
8666348 Noise canceling control apparatus, recording medium, and noise canceling control method Mar. 4, 2014
8666346 Robust FM modulation detector using signal autocorrelation Mar. 4, 2014
8666344 Satellite signal reception device and control method for a satellite signal reception device Mar. 4, 2014
8666343 DC-offset-correction system and method for communication receivers Mar. 4, 2014
8666323 RFID reader and method for suppressing transmission leakage signal thereof Mar. 4, 2014
8665854 Method and arrangement for noise floor estimation Mar. 4, 2014
8665128 Sigma-delta difference-of-squares log-RMS to DC converter with forward path multiplier and chopper stabilization Mar. 4, 2014
8665126 .SIGMA..DELTA. difference-of-squares LOG-RMS to DC converter with forward and feedback paths signal squaring Mar. 4, 2014
8660812 Methods for calibrating over-the-air path loss in over-the-air radio-frequency test systems Feb. 25, 2014
8660562 Radio communication system, communication control method, and base station and mobile terminal Feb. 25, 2014
8660508 Calibration of passive harmonic-rejection mixer Feb. 25, 2014
8655298 Method and system for locating interferences by frequency sub-band Feb. 18, 2014
8655294 Method and apparatus for position signal assisted window placement Feb. 18, 2014
8655284 Systems and methods for over-the-air testing of wireless systems Feb. 18, 2014
8654900 Wireless communication device and quantization method Feb. 18, 2014
8649750 Techniques for efficient carrier recovery for passband communciation systems Feb. 11, 2014
8649737 Mobile communication terminal test system, analysis method, and analysis program Feb. 11, 2014
8649446 System and method for channel classification Feb. 11, 2014
8644813 Customer initiated mobile diagnostics service Feb. 4, 2014
8644767 Enhanced signal wraparound monitor Feb. 4, 2014
8634793 IP2 calibration measurement and signal generation Jan. 21, 2014
8634779 Method for signalling a precoding in a cooperative beamforming transmission mode Jan. 21, 2014
8634490 Techniques for detection of signals in multiple-input multiple-output communication systems Jan. 21, 2014
8626097 Methods and apparatus for identifying signal degradation in a receiver Jan. 7, 2014
8615211 Method for spectrum sensing and communication device Dec. 24, 2013
8615210 Methods and apparatus for power measurement in a communication system Dec. 24, 2013
8611937 FM receiving device and filtering method Dec. 17, 2013
8611479 Method for correcting imbalance errors in a direct conversion receiver Dec. 17, 2013
8606313 Process for improving the determination of the SIR target in an outer loop power control mechanism of UMTS UE Dec. 10, 2013
8606259 Method and system for testing a software-defined radio device Dec. 10, 2013
8605912 Biphase mark code decoder and method of operation Dec. 10, 2013
8605841 Method for processing received OFDM data symbols and OFDM baseband receiver Dec. 10, 2013
8600325 Simulated degradation of SNR in decoded digital audio correlated to wireless link bit-error rate Dec. 3, 2013
8600310 Multimedia playback calibration methods, devices and systems Dec. 3, 2013

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