$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Optical detection apparatus for detecting light interruption

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G02F-001/00   
미국특허분류(USC) 250/221 ; 250/214 ; B
출원번호 US-0636394 (1996-04-23)
우선권정보 JP-0123713 (1995-05-23)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 34  인용 특허 : 2
초록

The light selected by a selection circuit 3 at a light emitting side and emitted from a light emitting element 1 such as a LED is converted to a specifically modulated light by an oscillation circuit 11. The light received by a light receiving element 2 such as a phototransistor at the receiving side is amplified by an amplifier circuit 6, and a detection circuit 12 detects whether a specifically modulated light is received. The H/L detection circuit 13 determines the presence/absence of a light interruption to produce a signal of either H (high level) o...

대표
청구항

An optical detection apparatus for detecting light interruption comprising; a light emitting element; a modulation circuit having an output for causing said light emitting element to emit a modulated light output signal comprising a first plurality of pulses of a given first modulation waveform; a light receiving element for receiving said modulated light output signal and for producing an output in response to said received modulated light output signal, said element output comprising a second plurality of pulses having a second given modulation wavefor...

이 특허를 인용한 특허 피인용횟수: 34

  1. Ung, Chi Man Charles; Booth, David Kenneth; Worthington, Stephen; Fletcher, Mark Andrew; Sirotich, Roberto A. L.. Apparatus for determining the location of a pointer within a region of interest. USP2013068456418.
  2. Mckiel, Jr., Frank A.. Auxiliary sensor for touchscreen device. USP2017079697745.
  3. Ung, Chi Man Charles; Booth, David Kenneth; Sirotich, Roberto A. L.. Dual mode touch systems. USP2012098274496.
  4. Van Genechten, Hans; Dhooge, Filip. Dual touchscreen. USP2013108558815.
  5. Hill, Douglas B.; Morrison, Gerald D.. Gesture recognition method and touch system incorporating the same. USP2012128325134.
  6. Hansen, Jeremy; Wellington, Trevor R.; Slevinsky, Mark. Interactive input system and bezel therefor. USP2014128902193.
  7. Morrison, Gerald. Interactive input system and method. USP2016099442607.
  8. Chtchetinine, Alex; Keenan, Vaughn E.. Interactive input system with multi-angle reflector. USP2012128339378.
  9. Newton, John. Low profile touch panel systems. USP2013028384693.
  10. Genechten, Hans Van. Night vision touchscreen. USP2014058736580.
  11. Van Genechten, Hans. Night vision touchscreen. USP2016129513745.
  12. Stecker, John Alyn; Carlsten, Keith Donald; Anderson, David Steven. Object sensing using dynamic demodulation. USP2016119507049.
  13. Brosnan, Michael J.; Trott, Gary R.; Orsley, Timothy James. Optical fingerprint navigation device with light guide film. USP2014088797298.
  14. Bridger, Simon James. Optical position sensing system and optical position sensor assembly. USP2013038405636.
  15. Bridger, Simon James. Optical position sensing system and optical position sensor assembly with convex imaging window. USP2013038405637.
  16. Newton, John. Optical touchscreen with improved illumination. USP2013048432377.
  17. Morrison, Gerald; Singh, Manvinder. Passive touch system and method of detecting user input. USP2011118055022.
  18. Morrison, Gerald; Singh, Manvinder. Passive touch system and method of detecting user input. USP2012068203535.
  19. Morrison, Gerald; Singh, Mavinder. Passive touch system and method of detecting user input. USP2013028378986.
  20. Hill, Douglas B.; Su, Scott Yu Tseng; Holmgren, David E.. Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region. USP2012018089462.
  21. Hill, Douglas B.; Su, Scott Yu Tseng; Holmgren, David E.. Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region. USP2013118576172.
  22. Newton, John. Protected touch panel display system. USP2005036864882.
  23. Renk Remi,FRX. Safety device for cooking appliance. USP2000036037580.
  24. Morrison, Gerald; Akitt, Trevor; Su, Scott. Size/scale orientation determination of a pointer in a camera-based touch system. USP2012078228304.
  25. Morrison, Gerald D.; Holmgren, David E.. System and method for differentiating between pointers used to contact touch surface. USP2013068456451.
  26. Morrison, Gerald. System and method of detecting contact on a display. USP2012018094137.
  27. Popovich, David Gregory; Hill, Douglas Blair; Vdovine, Serguei. Tiled touch system. USP2012028120596.
  28. Newton, John. Touch panel display system. USP2004026690363.
  29. Newton, John. Touch panel display system with illumination and detection provided from a single edge. USP2012048149221.
  30. Newton, John. Touch screen signal processing. USP2013068466885.
  31. Newton, John. Touch screen signal processing. USP2012108289299.
  32. Newton, John David. Touch screen signal processing. USP2013068456447.
  33. Newton, John David. Touch screen signal processing with single-point calibration. USP2013088508508.
  34. Newton, John. Touch screen system with hover and click input methods. USP2012028115753.