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Expired Canadian patentCanada

Simulcast broadcasting system and method

CA 1306502 C · Owner: Erickson, Paul M. · Inventors: Wilson, Christopher H.; Epsom, Robert L.; Erickson, Paul M.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, A simulcast broadcast system wherein two signals (103 and 106) intended for simultaneous broadcast are transmitted from a source site (100) to remote sites (200) discrete from one another. At the remote sites the two signals are separately processed including the, introduction of appropriate delay (305 and 312) prior to, combining them for broadcast in conjunction with other remote sites. One or more monitoring sites (400) can also be provided to monitor reception coherence within the system and to provide operating measurement information to allow automatic control of various simulcast system parameters, including delay.

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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 August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 22, 1989
GrantedAugust 18, 1992
Term endedAugust 18, 2009
Patent numberCA 1306502 C
Classification (IPC)H04B7/14 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedAug 22, 1989Patent grantedAug 18, 1992Term endedAug 18, 2009

Sources & verification

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