Transmission system
CA 2068719 C · Owner: Keesen, Heinz-Werner · Inventors: Keesen, Heinz-Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the main, application P 38 31 103 the, HDTV signal is divided into, two signal components whereby the first is a, standard TV signal and the second is a spatial high-resolution, and temporal low-resolution HDTV signal. An improved, receiver can now (a) still correct movement vectors transmitted as well; (b) transmit in the second channel by digital signals a reference for the level and phase of the signal in the first analog channel; (c) evaluate information transmitted as well which indicates where the second channel may be found in the frequency band; (d) contribute towards the reduction of the necessary store size in a future television system with two digital channels by …
Read the whole patent
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 November 6, 1990 and granted July 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2012.
- 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.