Method of and apparatus for recording an information signal
CA 1319985 C · Owner: Philips Electronics N.V. · Inventors: Van Der Zande, Paulus C. M.; Hoeven, Petrus C. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHN 12.398 17.05.1988, Method of and apparatus for recording an information signal. A method of and apparatus (Fig. 4) for recording an information signal (Vi), in particular an EFM-modulated signal are, revealed, which information signal comprises time-code signals which alternate with first time-synchronisation signals. The record carrier (1) which is employed is provided with a preformed servo track (4) which exhibits a periodic track modulation whose frequency is modulated in conformity with the position-information signal (Fig. 21) The positioninformation signal (Fig. 2) comprises position-code signals (12) which alternate with position-synchronisation signals (11). During recording a …
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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 July 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 2010.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.