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Class Information
Number: 702/69
Name: Data processing: measuring, calibrating, or testing > Measurement system in a specific environment > Electrical signal parameter measurement system > Waveform analysis > Signal quality (e.g., timing jitter, distortion, signal-to-noise ratio)
Description: Subject matter comprising means for determining or estimating an impairment in the electrical wave (e.g., timing jitter, distortion, signal to noise ratio, etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623581 |
Reference clock recovery for "eye" measurements |
Nov. 24, 2009 |
| 7623977 |
Periodic jitter (PJ) measurement methodology |
Nov. 24, 2009 |
| 7616721 |
Apparatus and method for checking network synchronization clock signal in communication system |
Nov. 10, 2009 |
| 7617431 |
Method and apparatus for analyzing delay defect |
Nov. 10, 2009 |
| 7610175 |
Timestamping signal monitor device |
Oct. 27, 2009 |
| 7610161 |
Wander gamut display |
Oct. 27, 2009 |
| 7606675 |
Jitter frequency determining system |
Oct. 20, 2009 |
| 7599458 |
System and method to reduce jitter |
Oct. 6, 2009 |
| 7596472 |
Device for synthesis of a composite digital signal with explicit control of the first three moments thereof |
Sep. 29, 2009 |
| 7596173 |
Test apparatus, clock generator and electronic device |
Sep. 29, 2009 |
| 7596460 |
System and method for calculating a voltage spike value |
Sep. 29, 2009 |
| 7596461 |
Measurement of air quality in wireless networks |
Sep. 29, 2009 |
| 7590192 |
Method and apparatus for computing SIR of time varying signals |
Sep. 15, 2009 |
| 7590170 |
Method and apparatus for measuring jitter |
Sep. 15, 2009 |
| 7590152 |
Router-based monitoring of EF-on-EF jitter |
Sep. 15, 2009 |
| 7590172 |
Low bias estimation of small signal-to-noise ratio |
Sep. 15, 2009 |
| 7587015 |
Asynchronous digital data capture |
Sep. 8, 2009 |
| 7573937 |
Phase rotator control test scheme |
Aug. 11, 2009 |
| 7574311 |
Time interval measuring apparatus and jitter measuring apparatus using the same |
Aug. 11, 2009 |
| 7571077 |
Method for evaluating anti-contamination level on a surface of optical recording medium, the apparatus and the optical recording medium |
Aug. 4, 2009 |
| 7567876 |
Quantum resonance interferometry for detecting signals |
Jul. 28, 2009 |
| 7558991 |
Device and method for measuring jitter |
Jul. 7, 2009 |
| 7555039 |
Simultaneous display of eye diagram and jitter profile during device characterization |
Jun. 30, 2009 |
| 7549101 |
Clock transferring apparatus, and testing apparatus |
Jun. 16, 2009 |
| 7545155 |
Parallel AC measurement method |
Jun. 9, 2009 |
| 7545886 |
Method and apparatus for eye-opening based optimization |
Jun. 9, 2009 |
| 7542532 |
Data transmission device and input/output interface circuit |
Jun. 2, 2009 |
| 7536275 |
Method for evaluating anti-contamination level on a surface of optical recording medium, the apparatus and the optical recording medium |
May. 19, 2009 |
| 7526394 |
Quality assessment tool |
Apr. 28, 2009 |
| 7522661 |
Method of producing a two-dimensional probability density function (PDF) eye diagram and Bit Error Rate eye arrays |
Apr. 21, 2009 |
| 7519509 |
Network analyzer, transmission tracking error measuring method, network analyzing method, program, and recording medium |
Apr. 14, 2009 |
| 7519488 |
Signal processing method and system for noise removal and signal extraction |
Apr. 14, 2009 |
| 7519489 |
Determination of a jitter property of a signal |
Apr. 14, 2009 |
| 7519490 |
Determining frequency components of jitter |
Apr. 14, 2009 |
| 7516374 |
Testing circuit and related method of injecting a time jitter |
Apr. 7, 2009 |
| 7516029 |
Communication channel calibration using feedback |
Apr. 7, 2009 |
| 7516030 |
Measuring components of jitter |
Apr. 7, 2009 |
| 7506222 |
System for phase tracking and equalization across a byte group for asymmetric control of high-speed bidirectional signaling |
Mar. 17, 2009 |
| 7496137 |
Apparatus for measuring jitter and method of measuring jitter |
Feb. 24, 2009 |
| 7496485 |
Methods and apparatus for predicting convergence of a transversal waveform relaxation algorithm |
Feb. 24, 2009 |
| 7492816 |
Adaptive equalization methods and apparatus |
Feb. 17, 2009 |
| 7477685 |
Method and systems for analyzing the quality of high-speed signals |
Jan. 13, 2009 |
| 7472362 |
Method of minimizing phase noise |
Dec. 30, 2008 |
| 7469191 |
Jitter measurement method, jitter measuring apparatus and image forming apparatus |
Dec. 23, 2008 |
| 7469190 |
Automated system approach to analyzing harmonic distortion in an electric power system |
Dec. 23, 2008 |
| 7467050 |
Method for detecting noise events in systems with time variable operating points |
Dec. 16, 2008 |
| 7463985 |
Electric power quality indicator device and method |
Dec. 9, 2008 |
| 7460967 |
Selectable navigation to automatically discovered events within the acquisition record of a digital sampling oscilloscope |
Dec. 2, 2008 |
| 7460965 |
Electric power calculating apparatus, electric power calculating method, tamper resistance evaluating apparatus, and tamper resistance evaluating method |
Dec. 2, 2008 |
| 7460591 |
Method and apparatus using re-sampled tie records to characterize jitter in a digital signal |
Dec. 2, 2008 |
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