Data transmission system with a digital alarm facility
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 1990
Grant Date -
N/A
app pub date -
Aug 22, 1988
filing date -
Sep 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The data transmission system includes a data transmitter for transmitting either data bits or a sequence of N alarm bits in a first binary state. The transmitter includes a decode circuit (16) providing a detection signal each time that, in a data bit stream, a sequence of n bits in the first binary state has been loaded in a shift register (14), a XOR circuit (18) modifying the binary state of the bit following the sequence of n bits in response to the detection signal provided by the decode circuit (16), thereby providing a modified data bit stream on the transmit line (20), the number n being chosen so that no modified data bit stream can be formed of N bits in the first binary state which could be confused with the sequence of N alarm bits. On the reception side, the data receiver performs the reciprocal operation of the data transmitter.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully