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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

System for determining an operational state of a MEMS based display

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H01J-003/14   
미국특허분류(USC) 250/234; 250/208.1
출원번호 UP-0437124 (2009-05-07)
등록번호 US-7838817 (2011-01-22)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Wills, Kevin D.
인용정보 피인용 횟수 : 1  인용 특허 : 45
초록
▼

Briefly, in accordance with one or more embodiments, an operational state of a MEMS device of a scanner system may be determined. In the event it is determined that the MEMS device is possibly operating in an unsafe mode, the laser may be turned off and/or the MEMS device may be shut down. An operational state of the MEMS device may be determined for example by obtaining a MEMS drive voltage sense signal and/or a MEMS drive current sense signal, and a potentially unsafe mode of operation may be identified if one or more of such signals are not at proper ...

대표
청구항
▼

What is claimed is: 1. An apparatus, comprising: a laser to emit a beam of light; a MEMS device having a mirror to reflect the beam of light emitted by the laser; a scan line generator circuit to provide a drive signal to the MEMS device to move the mirror and direct the reflected beam of light in a motion responsive to the drive signal to project an image; and a circuit to obtain an operational state of the MEMS device; wherein the laser beam is turned off or the MEMS device is shut down, or combinations thereof, if the circuit obtains an operational s...

이 특허에 인용된 특허 (45)

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  4. Iwaguchi Isao,JPX ; Satoh Shinichi,JPX ; Kawai Hiroaki,JPX ; Watanabe Mitsuo,JPX ; Itoh Motohiko,JPX. Bar code reader determining unit for determining the true changing point and correcting unit for correcting the false changing point to correct changing point. USP2001026189794.
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이 특허를 인용한 특허 피인용횟수: 1

  1. Chou, Ming-Chieh; Lee, Yao-Hui; Su, Han-Wei; Wang, Yu-Jen. Optical scanning projection system. USP2014038670170.

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