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Class Information
Number: 356/5.09
Name: Optics: measuring and testing > Range or remote distance finding > With photodetection > Of frequency difference
Description: Subject matter that either sends a defined frequency beam or frequency modulates an outgoing pulse or continuous wave optical beam in order to compare the detected return frequency to the transmitted frequency for determining range calibrated frequency differences.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7495822 |
Frequency shifter in an optical path containing a continuous laser source |
Feb. 24, 2009 |
| 7420656 |
Scannerless loss modulated flash color range imaging |
Sep. 2, 2008 |
| 7414705 |
Method and system for range measurement |
Aug. 19, 2008 |
| 7391505 |
Range sensing system |
Jun. 24, 2008 |
| 7336346 |
Distance measuring device and method thereof |
Feb. 26, 2008 |
| 7282374 |
Method and apparatus for comparing device and non-device structures |
Oct. 16, 2007 |
| 7230711 |
Envelope functions for modulation spectroscopy |
Jun. 12, 2007 |
| 7180580 |
Passive distance measurement using spectral phase gradients |
Feb. 20, 2007 |
| 7177014 |
Light wave distance measuring apparatus |
Feb. 13, 2007 |
| 7075626 |
Laser distance measuring device |
Jul. 11, 2006 |
| 7061592 |
System and method for measuring velocity using frequency modulation of laser output |
Jun. 13, 2006 |
| 6940599 |
Envelope functions for modulation spectroscopy |
Sep. 6, 2005 |
| 6894767 |
Light wave distance-measuring system |
May. 17, 2005 |
| 6885438 |
System and method for measuring velocity using frequency modulation of laser output |
Apr. 26, 2005 |
| 6876441 |
Optical sensor for distance measurement |
Apr. 5, 2005 |
| 6875978 |
Modelocked waveform for synthetic aperture ladar |
Apr. 5, 2005 |
| 6844924 |
Ladar system for detecting objects |
Jan. 18, 2005 |
| 6801875 |
Methods, systems, and software for performing measurements |
Oct. 5, 2004 |
| 6765654 |
Coherent laser radar device |
Jul. 20, 2004 |
| 6727985 |
System and method for signal acquisition in a distance meter |
Apr. 27, 2004 |
| 6728645 |
Method and system for automatic identification of objects type according to their characteristic spectrum of vibration frequencies |
Apr. 27, 2004 |
| 6714286 |
Agile pseudo-noise coded ranging ladar |
Mar. 30, 2004 |
| 6697148 |
Optical radar with range and doppler measurement capability |
Feb. 24, 2004 |
| 6671638 |
Oscillation measuring method and frequency measuring apparatus |
Dec. 30, 2003 |
| 6646723 |
High precision laser range sensor |
Nov. 11, 2003 |
| 6618125 |
Code-multiplexed read-out for ladar systems |
Sep. 9, 2003 |
| 6608669 |
Quadrature processed LIDAR system |
Aug. 19, 2003 |
| 6603536 |
Hybrid optical correlator/digital processor for target detection and discrimination |
Aug. 5, 2003 |
| 6603560 |
High sensitivity fiber optic interferometric MEMS |
Aug. 5, 2003 |
| 6587186 |
CMOS-compatible three-dimensional image sensing using reduced peak energy |
Jul. 1, 2003 |
| 6586748 |
Non-invasive water current measurement system and method |
Jul. 1, 2003 |
| 6559932 |
Synthetic aperture ladar system using incoherent laser pulses |
May. 6, 2003 |
| 6469778 |
Coherent laser radar system and target measurement method |
Oct. 22, 2002 |
| 6456368 |
Three-dimensional image capturing device |
Sep. 24, 2002 |
| 6437854 |
Radar system for determining optical visual range |
Aug. 20, 2002 |
| 6388739 |
Self-referencing microdoppler ladar receiver and associated detection method |
May. 14, 2002 |
| 6381007 |
Photosensitive charge-accumulating device and a lidar incorporating such a device |
Apr. 30, 2002 |
| 6288777 |
System and method for determining at least one physical quantity |
Sep. 11, 2001 |
| 6246469 |
Sensing apparatus |
Jun. 12, 2001 |
| 6233085 |
Apparatus, method, and computer program product for controlling an interferromic phased array |
May. 15, 2001 |
| 6133993 |
Length and velocity measurement apparatus |
Oct. 17, 2000 |
| 6100965 |
Laser speed measurement and range finding device |
Aug. 8, 2000 |
| 6040898 |
FMCW distance measurement process |
Mar. 21, 2000 |
| 5995207 |
Method for determining the phase difference of light waves propagated over two paths |
Nov. 30, 1999 |
| 5973770 |
Method for measuring the relative proximity of and interacting with a plurality of media/molecular structures |
Oct. 26, 1999 |
| 5898517 |
Optical fiber modulation and demodulation system |
Apr. 27, 1999 |
| 5877851 |
Scannerless ladar architecture employing focal plane detector arrays and FM-CW ranging theory |
Mar. 2, 1999 |
| 5867257 |
Battlefield personnel threat detection system and operating method therefor |
Feb. 2, 1999 |
| 5847817 |
Method for extending range and sensitivity of a fiber optic micro-doppler ladar system and apparatus therefor |
Dec. 8, 1998 |
| 5847816 |
Fiber optic micro-doppler ladar system and operating method therefor |
Dec. 8, 1998 |
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