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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Method and apparatus for signal processing in a laser radar receiver

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01B-011/26    G01C-003/08    G01C-021/24    H01L-027/00   
미국특허분류(USC) 356/141.1 ; 250/208.1 ; 250/214DC ; 250/206.2 ; 250/559.37 ; 701/152 ; 356/005.01
출원번호 US-0256942 (1999-02-24)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Lumen Intellectual Property Services
인용정보 피인용 횟수 : 46  인용 특허 : 5
초록
▼

An apparatus for receiving signals from a photodetector in a photodetector array. The apparatus has a number of comparators (e.g. 5) connected to the photodetector. each photodetector in the array has a similar circuit connected. Each comparator compares the output of the photodetector with an adjustable threshold level. Each threshold level is controlled by a threshold controller. Each threshold level corresponds with a light intensity value. Outputs of the comparators are each connected to a shift register. Each shift register is triggered to sample th...

대표
청구항
▼

[ What is claimed is:] [1.] An apparatus for processing signals received from a photodetector in a laser radar device, comprising:a) a plurality of comparators, each comparator comprising:1) first comparative input for receiving an output from the photodetector,2) a second comparative input, and3) a comparator output;b) a plurality of shift registers connected to the comparator outputs;c) a threshold controller for providing a threshold level at each second comparative inputs, wherein the threshold controller can independently adjust the threshold level ...

이 특허에 인용된 특허 (5)

  1. Stettner Roger (Santa Barbara CA) Bailey Howard W. (Santa Barbara CA). 3D imaging underwater laser radar. USP1995085446529.
  2. Jutamulia Suganda (Fremont CA) Storti George M. (Washington DC) Seiderman William (Frederick MD) Lindmayer Joseph (Potomac MD). Compact vector-matrix multiplier system employing electron trapping materials. USP1992075134686.
  3. Currie George D. (Burbank MI). Light detecting system. USP1992115162643.
  4. Blomqvist Ake Hugo Petrus (Karlskoga SW) Eriksson Bertil Torbjorn (Karlskoga SW). Method of and apparatus for target tracking. USP1976053954340.
  5. Schofield Kenneth ; Larson Mark L. ; Vadas Keith J.. Vehicle headlight control using imaging sensor. USP1998085796094.

이 특허를 인용한 특허 피인용횟수: 46

  1. Weber,Jonathan L.. Active sensor receiver detector array for countermeasuring shoulder-fired missiles. USP2007037193691.
  2. Shimon Maimon ; Eli Benoliel IL. Active target distance measurement. USP2002116480265.
  3. Bamji Cyrus. CMOS-compatible three-dimensional image sensor IC. USP2001116323942.
  4. Lewis, Robert; Thompson, Chad; Varian, George. Constructing a waveform from multiple threshold samples. USP2005096950177.
  5. Woolaway, James T.; Schlesselmann, John D.. Detector array for high speed sampling of an optical pulse. USP2015069052381.
  6. Sano, Naoki; Isogai, Emiko; Sugawara, Ryoichi. Distance measuring apparatus. USP2003126657705.
  7. Yahav, Giora. Dual mode depth imaging. USP2010127852461.
  8. Nobuhiro Tani JP; Shuzo Seo JP; Shinichi Kakiuchi JP; Kiyoshi Yamamoto JP. Ground positioning system applied in a distance measuring device. USP2002026346980.
  9. McCaffrey, Nathaniel Joseph; Andreas, Robert James; Levine, Peter Alan; Martinelli, Ramon Ubaldo. High resolution 3-D imaging range finder. USP2003036535275.
  10. Thorne, Peter Michael. IR detector system and method. USP2017129841488.
  11. Friedman, Melvin H.; Hall, John M.. Image integration and multiple laser source projection. USP2004086774366.
  12. Lewis, Robert A.. LIDAR optical scanner system. USP2017059658322.
  13. Sanders, Steven. Laser navigation sensor. USP2010067742514.
  14. Pi-Yao Chien TW; Rui-Feng Huang TW; Chih-Wei Hung TW; I-Jen Lai TW. Laser range signal processing method and device. USP2002106466307.
  15. Dosluoglu, Taner; Amantea, Robert; Levine, Peter Alan; Dawson, Robin Mark Adrian. Method and apparatus for generating charge from a light pulse. USP2005086924887.
  16. Levine, Peter Alan; Dosluoglu, Taner; McCaffrey, Nathaniel Joseph; Tower, John Robertson. Method and apparatus for resolving relative times-of-arrival of light pulses. USP2003126657706.
  17. John B. Allen ; Kent McCormack. Method and device for identifying an object and determining its location. USP2002056392747.
  18. Bamji, Cyrus; Yalcin, Hakan; Liu, Xinqiao; Eroglu, Ender Tunc. Method and system to differentially enhance sensor dynamic range. USP2005076919549.
  19. Bamji,Cyrus; Salama,Khaled. Method and system to differentially enhance sensor dynamic range using enhanced common mode reset. USP2007027176438.
  20. Charbon, Edoardo. Method and system to enhance dynamic range conversion useable with CMOS three-dimensional imaging. USP2004016678039.
  21. Gokturk,Salih Burak; Rafii,Abbas. Method and system to increase dynamic range of time-of-flight (TOF) and/or imaging sensors. USP2008057379100.
  22. Bamji,Cyrus; Liu,Xinqiao. Method enabling a standard CMOS fab to produce an IC to sense three-dimensional information using augmented rules creating mask patterns not otherwise expressible with existing fab rules. USP2008127464351.
  23. Scherbarth, Stefan; Rudow, Oliver. Method for the detection of pulsed laser radiation and imaging laser alerter. USP2017029571802.
  24. Martin, Kenneth I.; Summers, Kenneth E.. Method of authenticating beacon. USP2003016510401.
  25. Bamji, Cyrus; Liu, Xinqiao. Methods and devices for charge management for three-dimensional sensing. USP2005066906793.
  26. Rafii, Abbas; Bamji, Cyrus; Sze, Cheng-Feng; Torunoglu, Iihami. Methods for enhancing performance and data acquired from three-dimensional image systems. USP2004016674895.
  27. Rafii, Abbas; Bamji, Cyrus; Sze, Cheng-Feng; Torunoglu, Iihami. Methods for enhancing performance and data acquired from three-dimensional image systems. USP2003016512838.
  28. Bamji, Cyrus; Charbon, Edoardo; Shivji, Shiraz. Noise reduction techniques suitable for three-dimensional information acquirable with CMOS-compatible image sensor ICS. USP2003026522395.
  29. Shirai Noriaki,JPX ; Hoashi Yoshiaki,JPX ; Matsui Takeshi,JPX. Optical distance measuring apparatus selectively activating a matrix of light sensitive cells. USP2001106301003.
  30. Ryoichi Sugawara JP; Naoki Sano JP. Photo detecting device, distance measuring apparatus, and distance/image measuring apparatus. USP2002066400448.
  31. Drowley, Clifford I.. Photodetector circuit device and method thereof. USP2005066906302.
  32. Takeo Azuma JP; Kenya Uomori JP. Rangefinder. USP2002086441888.
  33. Evans Bruno J. ; Jenkins Gary Kim ; Dodd Mark Alan. Sensor assembly for imaging passive infrared and active LADAR and method for same. USP2001116323941.
  34. Xu, Yansun; Krishnan, Gopalakrishnan P.. Signal averaging circuit and method for sample averaging. USP2010077765251.
  35. Xu, Yansun; Sanders, Steven; Trisnadi, Jahja. Signal monitoring and control system for an optical navigation sensor. USP2013098541728.
  36. Xu, Yansun; Sanders, Steven; Trisnadi, Jahja. Signal monitoring and control system for an optical navigation sensor. USP2013098541727.
  37. Webb,Douglas A.. Signal processing circuit and method using analog voltage signal to pulse width modulation conversion. USP2007077247832.
  38. Smith, R. Clayton. Single photon imaging and timing array sensor apparatus and method. USP2003066583863.
  39. Zeng, Ke-Cai; Sanders, Steven; Xu, Yansun. System and method for screening semiconductor lasers. USP2010057723659.
  40. Gidseg, Ronald A.; Carattini, John A.; Ha, Phong V.. System and method for transitioning from a missile warning system to a fine tracking system in a directional infrared countermeasures system. USP2010067733465.
  41. Gidseg, Ronald A.; Carattini, John A.; Ha, Phong V.. System and method for transitioning from a missile warning system to a fine tracking system in a directional infrared countermeasures system. USP2012058184272.
  42. Gidseg, Ronald A.; Carattini, John A.; Ha, Phong V.. System and method for transitioning from a missile warning system to a fine tracking system in a directional infrared countermeasures system. USP2011098023107.
  43. Drowley, Clifford I.; Ramaswami, Shrinath. System, circuit and method providing a dynamic range pixel cell with blooming protection. USP2004086777662.
  44. Cryder, Michael E.; Tatko, Henry J; Woolaway, James T.; Schlesselmann, John D.. Three dimensional ladar imaging and methods using voxels. USP2013118587637.
  45. Boden, Scott T.. Time domain imager. USP2005036867808.
  46. Lee, Keun-Soo. Transistor, method of fabricating the same, and light emitting display comprising the same. USP2010017649202.

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