Invention Grant
- Patent Title: Light emitting device for transmission of communications information
- Patent Title (中): 用于传输通信信息的发光装置
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Application No.: US12280750Application Date: 2007-02-27
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Publication No.: US08053996B2Publication Date: 2011-11-08
- Inventor: Akira Sawada , Tetsuya Hara , Motohiko Okabe
- Applicant: Akira Sawada , Tetsuya Hara , Motohiko Okabe
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-050925 20060227
- International Application: PCT/JP2007/053641 WO 20070227
- International Announcement: WO2007/097459 WO 20070830
- Main IPC: H05B41/30
- IPC: H05B41/30
Abstract:
A light emitting device 1 is adapted, with a distributed power supply voltage, to turn on a light emitter 7, while timing a continuous conduction time with a pulse generating circuit 2, a frequency dividing circuit 3, and a counting memory circuit 4, to flash the light emitter 7 on and off with an on-off pattern depending on a result of the timing, signaling out information on the continuous conduction time.
Public/Granted literature
- US20090167191A1 LIGHT EMITTING DEVICE Public/Granted day:2009-07-02
Information query
