Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Optical & Optics
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:

Class Number Class Name Patents
356/5.12 Including an alternating reference path 14


Patents under this class:

Patent Number Title Of Patent Date Issued
8013983 Three-dimensional surround scanning device and method thereof Sep. 6, 2011
7982859 Method and device for deriving geodetic distance data Jul. 19, 2011
7982861 Time delay and distance measurement Jul. 19, 2011
7924410 Apparatus and method for scalable phased array radar data distribution and beamforming Apr. 12, 2011
7869007 Ranging apparatus and ranging method Jan. 11, 2011
7701592 Method and apparatus for combining a targetless optical measurement function and optical projection of information Apr. 20, 2010
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











 
 
  Recently Added Patents
Hand sign
Managing and collaborating with digital content
Integrated projector system
Head shield
Memory management configuration
Floor standing rack
System and method for confirming delivery of an electronic message
  Randomly Featured Patents
Dialog item interface definition object
Electrophoretic coloring composition
Tone signaling
Pump and ink jet printer mounting the pump
Forward feed merchandising device for soft drink bottles
Membrane devices with controlled transmembrane pressure and method of use
Method and system for extending the service life of an x-ray tube
Armchair with back insert
L.E.D. light
Process for production of piperidine derivatives