Tape recorder
CA 1088205 A · Owner: Sony Corporation · Inventors: Umeda, Kenkichi; Naito, Noriaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An azimuth angle other than zero can occur if magnetic tape vibrates or moves in the tape width direction during recording or playback mode and this can result in azimuth loss which is a function of the track width angle of misalignment and the wave length of the signals. The wider the tape width the greater the azimuth loss and the lower the tape transport speed the greater the azimuth loss. Thus, the present invention varies the track width and speed so as to obtain optimum reproduction fidelity by combining two or more heads to obtain the desired results.
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 October 21, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 21, 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.