Data read-write apparatus for a magnetic recording medium
CA 1057849 A · Owner: Casio Computer Co. · Inventors: Kashio, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A data read-write apparatus for a magnetic recording medium, wherein, when data represented by coded signals are written in a magentic recording medium a binary "1" signal of at least one bit is written in the magnetic recording medium ahead of data being written upon receipt of a clock pulse from a clock pulse oscillator; thereafter a series of binary coded signals denoting the content of the data are written in the magnetic recording medium; when the data are read out from the magnetic recording medium the, binary code "1" signal is first detected; upon said detection, the phase of clock pulses issued from the clock pulse oscillator are synchronized with the timing in which the binary …
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 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 3, 1996.
- 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.