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Canadian application, no grantCanada

Method and apparatus for determining transmission mode and synchronization for a digital audio broadcasting signal

CA 2374212 A1 · Owner: Usa Digital Radio, Inc. · Inventors: Matherne, Marcus M.; Goldston, Don Roy

CIPO record

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Abstract From the Canadian patent

A method is provided for transmitting control information in a digital audio broadcasting system. The method comprises the steps of transmitting a plurality of control bits in each of a plurality of control frames wherein a , first sequence of the control bits represents a transmission mode and a , second sequence of the control bits a control data synchronization word. The plurality of control bits can further include a third sequence of bits representative of an interleaver synchronizaton word. A method performed in a radio receiver for determining transmission mode and synchronization for a digital audio broadcasting signal is also provided. The method comprises the steps of …

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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

  • Filed June 22, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 22, 2000
GrantedNo grant recorded
Term endedJune 22, 2020
Patent numberCA 2374212 A1
Classification (IPC)H04H20/46 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJune 22, 2000Term endedJune 22, 2020

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.