Telecommunications – Radiotelephone system – Emergency or alarm communication
Patent
1996-12-27
2000-03-28
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Emergency or alarm communication
455556, 359152, 359154, H04M 1100
Patent
active
060442565
ABSTRACT:
A terminal device having an infrared optical communication circuit with improved efficiency in use of the infrared optical communication circuit and the terminal device itself. In a pocket telephone T as a terminal device, an infrared optical communication circuit includes a light emitting section for emitting infrared rays and a photo detector section for detecting the infrared rays. A controller compares the infrared rays emitted from the light emitting section with the infrared rays which are reflected by a reflecting plate and are detected by the photo detector section and detects the information of infrared ray interruption on the basis of the comparison result. The information of the infrared ray interruption can be transmitted from a radio transmitter-receiver circuit to another terminal device, is output as voices from an audio transmitter-receiver, is displayed on a display, or is stored in a memory circuit, resulting in enabling to detect a movement of a person or substance and improving efficiency in use of the terminal device.
REFERENCES:
patent: 4507654 (1985-03-01), Stolarczyk et al.
patent: 4559526 (1985-12-01), Tani et al.
patent: 4882747 (1989-11-01), Williams
patent: 4949074 (1990-08-01), D'Ambroisia et al.
patent: 4993059 (1991-02-01), Smith et al.
patent: 5257007 (1993-10-01), Steil et al.
patent: 5283549 (1994-02-01), Mehaffey et al.
patent: 5334972 (1994-08-01), Sugimoto et al.
patent: 5568535 (1996-10-01), Sheffer et al.
patent: 5587701 (1996-12-01), Hess
patent: 5617236 (1997-04-01), Wang et al.
patent: 5636264 (1997-06-01), Sulavuori et al.
patent: 5675150 (1997-10-01), Kunz
patent: 5712623 (1998-01-01), Kumai et al.
Bost Dwayne D.
NEC Corporation
Vuong Quochien B.
LandOfFree
Terminal device with detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Terminal device with detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Terminal device with detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1334052