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Proximity sensor with adaptive threshold

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H01J-040/14
  • G06M-007/00
출원번호 US-0058384 (2002-01-30)
발명자 / 주소
  • Casebolt, Mark W.
  • Lee, Mark R.
출원인 / 주소
  • Microsoft Corporation
대리인 / 주소
    Banner & Witcoff, Ltd.
인용정보 피인용 횟수 : 77  인용 특허 : 69

초록

A proximity sensor measures receptor output with an energy source deactivated. The sensor then measures receptor output with the energy source activated. The measurements with the energy source activated are compared to the measurements with the energy source deactivated to compensate for the effect

대표청구항

A proximity sensor measures receptor output with an energy source deactivated. The sensor then measures receptor output with the energy source activated. The measurements with the energy source activated are compared to the measurements with the energy source deactivated to compensate for the effect

이 특허에 인용된 특허 (69)

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