Digital radio frequency receiver
CA 1318358 C · Owner: Longley, Lester Anderson · Inventors: Lambert, Katherine Helen; Lillie, Ross James; Janc, Robert Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital radio receiver is described. The digital receiver (100) of the present invention contemplates a digital radio receiver which operates on a received analog signal which has been converter to a digital form after preselection at the output of the antenna. The digital receiver (100) of the present invention comprises a preselector (106), a high-speed analog-to-digital (A/D) converter (108) a digitally, implemented intermediate-frequency (IF) selectivity section (110) having an output signal at substantially baseband frequencies and digital signal processor (DSP)circuit (120) performing demodulation and audio filtering. The radio architecture of the present invention is programmably …
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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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 2010.
- 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.