Reproducing system
CA 1089092 A · Owner: Sony Corporation · Inventors: Watanabe, Yoshimi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reproducing system having a rotary magnetic head scanning video tracks recorded on a magnetic tape a head, deflector for moving the rotary magnetic head and a control, circuit for supplying a control signal to the head deflector so that the rotary magnetic head scans a center of the video tracks. The control signal is produced by comparing one of reproduced signals from the rotary magnetic head with the other thereof when the head deflector is displaced at a predetermined distance.
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
- Granted November 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 1997.
- 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.