Radio link remote control signaling system, and method
CA 1183901 A · Owner: Blaupunkt-Werke G.M.B.H. · Inventors: Duckeck, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To permit simultaneous transmission of command codes in binary command words, with traffic or other announcements being broadcast over an FM transmitter which has a 57 kHz subcarrier AM modulated by an announcement recognition (AR) signal, for example 125 Hz, use is made of the long response time of AR switching elements to provide before the AR, switching element (13) can respond decoding of a command, word at a clock rate which is fast with respect to the response time of the long switching time constant switching element (13). This fast response is, preferably accomplished, by a counter (18) which has only the number of count positions corresponding to the bits in the command word then …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.