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Class Information
Number: 375/224
Name: Pulse or digital communications > Testing
Description: Subject matter in which at least part of the system is tested.

Sub-classes under this class:

Class Number Class Name Patents
375/225 Data rate 452
375/226 Phase error or phase jitter 553
375/227 Signal noise 545
375/228 With indicator 241

Patents under this class:

Patent Number Title Of Patent Date Issued
8588702 Method, equipment for submitting a measurement report Nov. 19, 2013
8588287 Method, device and system for detecting channel quality Nov. 19, 2013
8588285 Method and apparatus for operating a digital subscriber line arrangement Nov. 19, 2013
8588096 Link quality reporting for a communication system capable of using different modulation schemes Nov. 19, 2013
8582690 Apparatus and method for determining signal power Nov. 12, 2013
8582632 Decoding a signal Nov. 12, 2013
8582631 Managing communication operations of wireless devices Nov. 12, 2013
8581600 Electrical connectivity test apparatus and methods Nov. 12, 2013
8576899 Method and system for robust digital subscriber loop communication Nov. 5, 2013
8576898 SLOC spot monitoring Nov. 5, 2013
8575961 Multi-valued driver circuit Nov. 5, 2013
8571854 Detector for use in voice communications systems Oct. 29, 2013
8565357 Detection of start frame delimiters in a wireless digital communication system Oct. 22, 2013
8559492 Transmitter-only IC chip having external loopback test function and external loopback test method using the same Oct. 15, 2013
8559491 Methods and devices for determining the impulse response of propagation channels involving emitters, reflectors and sensors that are fixed or mobile Oct. 15, 2013
8559490 Apparatus and method for removing common phase error in a DVB-T/H receiver Oct. 15, 2013
8559488 On-chip IQ imbalance and LO leakage calibration for transceivers Oct. 15, 2013
8555145 Systems and methods of encoding using a reduced codebook with adaptive resetting Oct. 8, 2013
8554152 Apparatus and method for estimating channel in mobile communication system Oct. 8, 2013
8553846 Phone test set modem Oct. 8, 2013
8553822 Time filtering for excess delay mitigation in OFDM systems Oct. 8, 2013
8553752 Method and apparatus for determining a calibration signal Oct. 8, 2013
8553751 Radio equipment controller, radio control method, radio station, and radio communication system Oct. 8, 2013
8553750 Systems and methods for loop length and bridged tap length determination of a transmission line Oct. 8, 2013
8542723 Information processing apparatus and information generation method Sep. 24, 2013
8542722 Communication analysis apparatus and communication analysis method Sep. 24, 2013
8537942 System and method of maintaining correction of DC offsets in frequency down-converted data signals Sep. 17, 2013
8537911 Method and apparatus for reference signal processing in an orthogonal frequency division multiplexing communication system Sep. 17, 2013
8532207 Methods and systems for distinguishing a signal of interest from interference signals Sep. 10, 2013
8532164 Wireless communication apparatus, wireless communication system, and wireless communication method Sep. 10, 2013
8526554 Apparatus and method for deskewing serial data transmissions Sep. 3, 2013
8526520 Cyclostationary signal detection in the angular domain for communication systems Sep. 3, 2013
8526510 Estimation of traffic-to-pilot ratios Sep. 3, 2013
8526485 Using equalization coefficients of end devices in a cable television network to determine and diagnose impairments in upstream channels Sep. 3, 2013
8521460 Multi-domain test and measurement instrument Aug. 27, 2013
8521092 Wireless transceiver test bed system and method Aug. 27, 2013
8520793 Phase detector, phase detecting method, and clock-and-data recovery device Aug. 27, 2013
8520787 Apparatus and method for deskewing serial data transmissions Aug. 27, 2013
8514978 Calibration system and method Aug. 20, 2013
8514920 Methods and apparatus for pseudo asynchronous testing of receive path in serializer/deserializer devices Aug. 20, 2013
8514919 Synthetic instrument unit Aug. 20, 2013
8514918 Close-loop power transmission calibration Aug. 20, 2013
8514914 IQ imbalance correction method in a wireless communication device including a quadrature modulation/demodulation function Aug. 20, 2013
8510624 Data processing system with concatenated encoding and decoding structure Aug. 13, 2013
8509342 System and method for delivery of video, content on demand and IP packets Aug. 13, 2013
8509294 Signal generator, signal generating system, and signal generating method Aug. 13, 2013
8504319 Methods, systems, and products for reflective maintenance Aug. 6, 2013
8503544 Techniques for decoding transmitted signals using reactive taboo searches (RTS) Aug. 6, 2013
8494070 Channel impulse response (CIR)-based and secondary synchronization channel (SSC)-based (frequency tracking loop (FTL)/time tracking loop (TTL)/channel estimation Jul. 23, 2013
8494063 System and method for stacking receiver channels for increased system through-put in an RF data transmission system Jul. 23, 2013

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