| Patent | Date |
|---|
Using satellite visibility data for improved location accuracy
Grant 9,857,474 - Tan , et al. January 2, 2 | 2018-01-02 |
Non-fourier spectral analysis for editing and visual display of music
Grant 9,430,996 - Chu August 30, 2 | 2016-08-30 |
Non-Fourier Spectral Analysis for Editing and Visual Display of Music
App 20140372080 - Chu; David C. | 2014-12-18 |
Using Satellite Visibility Data For Improved Location Accuracy
App 20140266876 - Tan; Zhiyong ; et al. | 2014-09-18 |
System architecture for sensing an absolute position using a target pattern
Grant 7,869,662 - Yun , et al. January 11, 2 | 2011-01-11 |
System for sensing an absolute position in two dimensions using a target pattern
Grant 7,489,409 - Chu , et al. February 10, 2 | 2009-02-10 |
System Architecture For Sensing An Absolute Position Using A Target Pattern
App 20080291470 - Yun; Janet ; et al. | 2008-11-27 |
System and method for interferometer non-linearity compensation
Grant 7,436,519 - Chu , et al. October 14, 2 | 2008-10-14 |
System For Sensing An Absolute Position In Two Dimensions Using A Target Pattern
App 20070237413 - Chu; David C. ; et al. | 2007-10-11 |
System for sensing an absolute position in two dimensions using a target pattern
Grant 7,230,727 - Chu , et al. June 12, 2 | 2007-06-12 |
System and method for interferometer non-linearity compensation
App 20060274322 - Chu; David C. ; et al. | 2006-12-07 |
System and method of using a side-mounted interferometer to acquire position information
Grant 7,130,056 - Schluchter , et al. October 31, 2 | 2006-10-31 |
System for sensing an absolute position in two dimensions using a target pattern
App 20060238776 - Chu; David C. ; et al. | 2006-10-26 |
Phase digitizer for signals in imperfect quadrature
Grant 6,952,175 - Chu , et al. October 4, 2 | 2005-10-04 |
System and method of using a side-mounted interferometer to acquire position information
App 20050185193 - Schluchter, William Clay ; et al. | 2005-08-25 |
Using target images to determine a location of a stage
App 20050175217 - Mueller, Louis F. ; et al. | 2005-08-11 |
Phase digitizer for signals in imperfect quadrature
App 20050062624 - Chu, David C. ; et al. | 2005-03-24 |
System and method for heterodyne interferometer high velocity type non-linearity compensation
Grant 6,792,368 - Chu September 14, 2 | 2004-09-14 |
System and method for interferometer non-linearity compensation
Grant 6,738,143 - Chu May 18, 2 | 2004-05-18 |
System and method for heterodyne interferometer high velocity type non-linearity compensation
App 20030144807 - Chu, David C. | 2003-07-31 |
System and method for interferometer non-linearity compensation
App 20030098981 - Chu, David C. | 2003-05-29 |
Precision timed delay measurement using phaselocked CW technique
Grant 5,384,541 - Chu , et al. January 24, 1 | 1995-01-24 |
Picosecond event timer
Grant 5,166,959 - Chu , et al. November 24, 1 | 1992-11-24 |
Time interval measuring apparatus and method
Grant 4,613,951 - Chu September 23, 1 | 1986-09-23 |
Data capture in an uninterrupted counter
Grant 4,519,091 - Chu , et al. May 21, 1 | 1985-05-21 |
Automatic echo-chamber for measuring single time intervals by replication and averaging
Grant 4,383,166 - Chu , et al. May 10, 1 | 1983-05-10 |
Double vernier time interval measurement using triggered phase-locked oscillators
Grant 4,164,648 - Chu August 14, 1 | 1979-08-14 |
Frequency measurement using phase continuous frequency switching
Grant 3,984,770 - Chu October 5, 1 | 1976-10-05 |
Measurement averaging counting apparatus employing a randomly phase modulated time base to improve counting resolution
Grant 3,938,042 - Gliever , et al. February 10, 1 | 1976-02-10 |
Random phase modulating time base and method to improve measurement averaging counter resolution
Grant 3,886,451 - Chu , et al. May 27, 1 | 1975-05-27 |
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