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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:
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Patent Number Title Of Patent Date Issued
7593742 Received communication signal processing methods and components for wireless communication equipment Sep. 22, 2009
7593459 Wireless link simulator Sep. 22, 2009
7590152 Router-based monitoring of EF-on-EF jitter Sep. 15, 2009
7583725 Dynamically reconfigurable adaptive communication device and system Sep. 1, 2009
7583091 Printed circuit board, and backplane data transmission method Sep. 1, 2009
7577191 Apparatus for automatically detecting BER measurement signal Aug. 18, 2009
7577190 Method for prediction of a channel coefficient Aug. 18, 2009
7573937 Phase rotator control test scheme Aug. 11, 2009
7567614 Altering power consumption in communication links based on measured noise Jul. 28, 2009
7564897 Jitter measuring apparatus, jitter measuring method and PLL circuit Jul. 21, 2009
7564896 Method for measuring multiple parameters of a signal transmitted by a signal generator Jul. 21, 2009
7564893 Test system and method for parallel modulation error measurement of transceivers Jul. 21, 2009
7561212 Digital broadcast receiving apparatus and receiving method Jul. 14, 2009
7559001 Method and apparatus for executing commands and generation of automation scripts and test cases Jul. 7, 2009
7558316 System and method for implementing a delta-sigma modulator integrity supervisor Jul. 7, 2009
7555091 System and method for providing a clock and data recovery circuit with a self test capability Jun. 30, 2009
7555038 Transmission system, signal receiver, test apparatus and test head Jun. 30, 2009
7555036 System and method for implementing a delta-sigma modulator integrity supervisor Jun. 30, 2009
7551690 Transmitter and receiver Jun. 23, 2009
7538706 Mash modulator and frequency synthesizer using the same May. 26, 2009
7529295 Acquiring frequency and phase offset estimates using frequency domain analysis May. 5, 2009
7529294 Testing of multiple asynchronous logic domains May. 5, 2009
7523365 Dynamic determination of signal quality in a digital system Apr. 21, 2009
7522662 Electronic device including image forming apparatus Apr. 21, 2009
7522661 Method of producing a two-dimensional probability density function (PDF) eye diagram and Bit Error Rate eye arrays Apr. 21, 2009
7522660 Pulse pattern generating apparatus Apr. 21, 2009
7519383 Method for efficient calibration of EVM using compression characteristics Apr. 14, 2009
7519139 Signal monitoring systems and methods Apr. 14, 2009
7519112 Testing device and method for providing receiver overload protection during transceiver testing Apr. 14, 2009
7519111 Apparatus and method for providing system and test clock signals to an integrated circuit on a single pin Apr. 14, 2009
7515877 Communicating signals according to a quality indicator and a time boundary indicator Apr. 7, 2009
7509095 Method and system for identifying occurrence of shadowing phenomenon during wireless communications Mar. 24, 2009
7508868 Systems and methods for testing the performance of and simulating a wireless communication device Mar. 24, 2009
7505512 Method and apparatus for combining statistical eye channel compliance methods with linear continuous-time equalization Mar. 17, 2009
7502410 Method and system for controlling a notching mechanism Mar. 10, 2009
7502326 Methods used to simultaneously perform automated at-speed testing of multiple gigabit per second high serial pin count devices Mar. 10, 2009
7500162 Sourcing internal signals to output pins of an integrated circuit through sequential multiplexing Mar. 3, 2009
7499406 Method and apparatus for estimating and reporting the quality of a wireless communication channel Mar. 3, 2009
7496818 Apparatus and method for testing and debugging an integrated circuit Feb. 24, 2009
7496137 Apparatus for measuring jitter and method of measuring jitter Feb. 24, 2009
7496135 System and method for selectable mask for LDSL Feb. 24, 2009
7493223 Pattern identification and bit level measurements on repetitive patterns Feb. 17, 2009
7490275 Method and apparatus for evaluating and optimizing a signaling system Feb. 10, 2009
7489905 System for determining RF path loss between an RF source and an RF receiver with hysteresis and related methods Feb. 10, 2009
7487423 Decoding method, medium, and apparatus Feb. 3, 2009
7487055 Estimating of the jitter of a clock signal Feb. 3, 2009
7486725 Bit error rate tester and pseudo random bit sequences generator thereof Feb. 3, 2009
7486724 Codec compensation techniques for channel analysis applications Feb. 3, 2009
7484155 Analog base-band test apparatus and method by enhanced combination of JTAG and memory in mobile communication system Jan. 27, 2009
7483477 User interface for selection of sampling parameters in a logic analyzer whose data receivers are in groups each having a separate threshold that is common to the channels within each group Jan. 27, 2009

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