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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
8654828 Mechanism for the measurement of DC properties of a signal path Feb. 18, 2014
8654827 Estimation of low-amplitude echoes in a received communication signal Feb. 18, 2014
8654826 Multi-stage phase estimation method and apparatus Feb. 18, 2014
8654825 Backoff adaptation for digital communication systems with channel quality information Feb. 18, 2014
8654821 Method and circuit for fractional rate pulse shaping Feb. 18, 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
8649423 Methods and systems for precoder selection assisted by demodulation reference signals (DM-RS) Feb. 11, 2014
8645788 Forward error correction (FEC) convergence by controlling reliability levels of decoded words in a soft FEC decoder Feb. 4, 2014
8644440 Apparatus and methods for detection and correction of transmitter duty cycle distortion Feb. 4, 2014
8644419 Periodic calibration for communication channels by drift tracking Feb. 4, 2014
8644409 Method and apparatus for modulation and layer mapping in a wireless communication system Feb. 4, 2014
8640157 Automatic detection of a cable trap Jan. 28, 2014
8638242 Digital power management using serial data transfer Jan. 28, 2014
8634498 Systems and methods for probing wired communication channels Jan. 21, 2014
8630821 High speed data testing without high speed bit clock Jan. 14, 2014
8625714 Time delay estimation Jan. 7, 2014
8620222 Method for testing transmission modes of a wireless communication device Dec. 31, 2013
8619914 Receiver and receiving method for scalable bandwith Dec. 31, 2013
8619846 Amplitude control in a variable load environment Dec. 31, 2013
8619845 Optimizing data rate of multi-band multi-carrier communication systems Dec. 31, 2013
8619842 Communication device, communication system and communication method Dec. 31, 2013
8619742 System and method for coding WCDMA MIMO CQI reports Dec. 31, 2013
8615210 Methods and apparatus for power measurement in a communication system Dec. 24, 2013
8615034 Method for analyzing random telegraph signal and threshold level determination method therefor Dec. 24, 2013
8612506 Arithmetic circuit, signal selection method, and computer program Dec. 17, 2013
8611470 Identifying rogue GSM base stations by intercepting downlink beacon channels Dec. 17, 2013
8611451 Precoder coefficient optimization method and apparatus for communications systems Dec. 17, 2013
8611406 System optimization using soft receiver masking technique Dec. 17, 2013
8611405 Detecting faults affecting communications links Dec. 17, 2013
8606280 Apparatus and method for allocating resources based on error vector magnitude (EVM) in a broadband wireless communication system Dec. 10, 2013
8605777 Circuit for recognizing a beginning and a data rate of data and method thereof Dec. 10, 2013
8605776 Proximity contactless communication apparatus capable of selecting appropriate encoding method according to bandwidth between antennas Dec. 10, 2013
8605775 Measuring Hum in a digital TV signal Dec. 10, 2013
8605774 Amplitude/phase delay calibration for envelope-tracking amplifier Dec. 10, 2013
8599917 Apparatus and method for receiving streaming data in a portable terminal Dec. 3, 2013
8599910 Jitter addition apparatus and test apparatus Dec. 3, 2013
8599909 Serial link voltage margin determination in mission mode Dec. 3, 2013
8598898 Testing of high-speed input-output devices Dec. 3, 2013
8595278 Method and system for unconstrained frequency domain adaptive filtering Nov. 26, 2013
8594260 Method and system for channel equalization Nov. 26, 2013
8594241 Estimation and compensation method for IQ imbalance Nov. 26, 2013
8594227 Measurement of system time delay Nov. 26, 2013
8594169 Method for decomposing and analyzing jitter using spectral analysis and time-domain probability density Nov. 26, 2013
8594168 Digital signal processor with adjustable data rate and methods thereof Nov. 26, 2013
8594167 Determining spectral samples of a finite length sequence at non-uniformly spaced frequencies Nov. 26, 2013
8594166 Method and system for the serial transmission of data Nov. 26, 2013
8594165 Half-symbol constellation display Nov. 26, 2013
8594162 Impulse noise management Nov. 26, 2013
8588763 Methods for testing wireless electronic devices using short message service Nov. 19, 2013

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