Spread spectrum communication techniques for a code division message multiplexing system
CA 1046669 A · Owner: Majesty (Her) The Queen In Right Of Canada As Represented By The Minister Of Defence · Inventors: Stette, Gunnar R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transmission system is described suitable for transmitting, multiple messages over a single carrier. At the transmitter a message-, modulated carrier is given an additional modulation by an identifiable signal. At the receiver, the carrier is identified by means of the additional modulation with messages being retrieved by demodulating the modulated carriers. The system is characterized in that in the, transmitter the carrier for each message is given an additional modulation causing a number of sub-carriers to be generated. The sub-carriers are synchronized in code and carrier frequency both mutually and jointly. The carrier is solely modulated by an identifiable signal. The carrier and …
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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 January 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 16, 1996.
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Timeline
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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.