Apparatus for recording and reproducing data
CA 1287166 C · Owner: Yamamura, Shinichi · Inventors: Sako, Yoichiro; Yamamura, Shinichi; Yamagami, Tamotsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A recording and reproducing apparatus comprising a memory for storing input data to be recorded in units of a predetermined quantity, a first address control means for generating only sequential memory addresses a, second address control means for generating non-sequential memory addresses, and means for adding a redundant bit such as an error correcting code and so on to each predetermined quantity unit of data wherein, when the input data has no correlation with adjacent input data, the input data is sequentially written in the memory by the first address control means read out, therefrom, added with the redundant bit and, sequentially recorded on the recording medium without changing the …
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 July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2008.
- 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.