Title:
FAIL-SAFE SIGNAL TRANSMITTER AND POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/1996/013818
Kind Code:
A1
Abstract:
A fail-safe signal transmitter whose output signals do not include errors even if multiple troubles occur in its circuits inclusive of a power supply device. Particularly, the transmitter is provided with a power supply monitor device, which includes a fail-safe window comparator and a fail-safe on-delay circuit for monitoring the power supply device. The output signal from the transmitter represents the conjunction of a power supply monitor signal, a signal to be transmitted, and a carrier.
Inventors:
SHIRAI TOSHIHITO (JP)
ANZAI HIROJI (JP)
FUTSUHARA KOICHI (JP)
ANZAI HIROJI (JP)
FUTSUHARA KOICHI (JP)
Application Number:
PCT/JP1994/001825
Publication Date:
May 09, 1996
Filing Date:
October 28, 1994
Export Citation:
Assignee:
NIPPON SIGNAL CO LTD (JP)
SHIRAI TOSHIHITO (JP)
ANZAI HIROJI (JP)
FUTSUHARA KOICHI (JP)
SHIRAI TOSHIHITO (JP)
ANZAI HIROJI (JP)
FUTSUHARA KOICHI (JP)
International Classes:
G08B29/18; (IPC1-7): G08B21/00
Foreign References:
| JPH01255449A | 1989-10-12 | |||
| JPH01232408A | 1989-09-18 | |||
| JPH01173921U | 1989-12-11 | |||
| JPS6044439U | 1985-03-28 | |||
| JPH052948B2 | 1993-01-13 | |||
| JPH04101287U | 1992-09-01 |
Other References:
See also references of EP 0737951A4
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