Transcoding cablecard
CA 2553418 C · Owner: Sony Electronics Inc. · Inventors: Derovanessian, Henry; Candelore, Brant L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A CableCARD device for manipulation of a stream of data has an inband data input for receiving a stream of video data from a host the stream of video , data being encrypted and encoded according to a first coding. A decrypter decrypts the encrypted data. A transcoder transcodes the stream of video data to convert the stream of video data to a second coding producing a transcoded , data stream. An encrypter encrypts the transcoded data stream. An inband data output sends the encrypted transcoded data stream back to the host. This abstract should not be considered limiting since other embodiments may , incorporate more fewer or different elements that those described in this abstract.
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 January 12, 2005 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.