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Class Information
Number: 356/5.11
Name: Optics: measuring and testing > Range or remote distance finding > With photodetection > Of cw phase delay > Having multiple carrier or modulation frequencies
Description: Subject matter including more than one frequency of modulation or carrier frequency for the transmitted optical signal to further define the distance-proportional phases comparison.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7421338 |
Robot system |
Sep. 2, 2008 |
| 7417736 |
Method for determining a radiation power and an exposure apparatus |
Aug. 26, 2008 |
| 7382444 |
Multiple optical channels |
Jun. 3, 2008 |
| 7339655 |
Electric optical distance wavelength meter |
Mar. 4, 2008 |
| 7336346 |
Distance measuring device and method thereof |
Feb. 26, 2008 |
| 7315355 |
Method and device for optical distance measurement |
Jan. 1, 2008 |
| 7283213 |
Method and system to correct motion blur and reduce signal transients in time-of-flight sensor systems |
Oct. 16, 2007 |
| 7230711 |
Envelope functions for modulation spectroscopy |
Jun. 12, 2007 |
| 7215413 |
Chirped synthetic wave laser radar apparatus and methods |
May. 8, 2007 |
| 7177014 |
Light wave distance measuring apparatus |
Feb. 13, 2007 |
| 7073384 |
Method and apparatus for remote measurement of vibration and properties of objects |
Jul. 11, 2006 |
| 7075626 |
Laser distance measuring device |
Jul. 11, 2006 |
| 7023531 |
Laser distance measuring device with phase delay measurement |
Apr. 4, 2006 |
| 6940599 |
Envelope functions for modulation spectroscopy |
Sep. 6, 2005 |
| 6864969 |
Calibration system for calibrating orientation parameters of digital optoelectronic sensors in a mobile carrier used for remote reconnaisance |
Mar. 8, 2005 |
| 6856927 |
Method and apparatus for the characterization of optical pulses and modulators |
Feb. 15, 2005 |
| 6850314 |
Method for optical sensing |
Feb. 1, 2005 |
| 6750960 |
Optical distance measurement device and method thereof |
Jun. 15, 2004 |
| 6586748 |
Non-invasive water current measurement system and method |
Jul. 1, 2003 |
| 6570646 |
Optical distance measurement device and method thereof |
May. 27, 2003 |
| 6369880 |
Device for measuring distance using a semiconductor laser in the visible wavelength range according to the running time method |
Apr. 9, 2002 |
| 6148123 |
Method and apparatus for measuring optical distances |
Nov. 14, 2000 |
| 6100540 |
Laser displacement measurement system |
Aug. 8, 2000 |
| 6052190 |
Highly accurate three-dimensional surface digitizing system and methods |
Apr. 18, 2000 |
| 5793483 |
Optical measurement system |
Aug. 11, 1998 |
| 5715044 |
Laser radar |
Feb. 3, 1998 |
| 5589928 |
Method and apparatus for measuring distance to a target |
Dec. 31, 1996 |
| 5446530 |
Amplitude modulated corrected frequency modulated laser |
Aug. 29, 1995 |
| 5305091 |
Optical coordinate measuring system for large objects |
Apr. 19, 1994 |
| 5204732 |
Optical distance measuring apparatus |
Apr. 20, 1993 |
| 5194906 |
Distance measuring device |
Mar. 16, 1993 |
| 5164733 |
Phase shift detection for use in laser radar ranging systems |
Nov. 17, 1992 |
| 5054912 |
Optical distance-measuring device |
Oct. 8, 1991 |
| 5001338 |
Body position sensor by phase comparison of modulated light waves transmitted through optical fiber |
Mar. 19, 1991 |
| 4759623 |
Electrooptical distance measuring apparatus |
Jul. 26, 1988 |
| 4692023 |
Optical adapter for a light-wave rangefinder |
Sep. 8, 1987 |
| 4689489 |
Tank gauge system |
Aug. 25, 1987 |
| 4537502 |
Multiple discrete frequency ranging with error detection and correction |
Aug. 27, 1985 |
| 4413904 |
Electro-optical range finder using three modulation frequencies |
Nov. 8, 1983 |
| 4171907 |
Electro-optic distance measuring device |
Oct. 23, 1979 |
| 4146328 |
Telemeter comprising a pilot oscillator and an oscillator kept in phase with the pilot oscillator |
Mar. 27, 1979 |
| 4093380 |
Optical systems utilizing three-wave heterodyne detectors |
Jun. 6, 1978 |
| 3992615 |
Electro-optical ranging system for distance measurements to moving targets |
Nov. 16, 1976 |
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