Recording and/or play-back system employing a cassette with a memory unit accommodated in the cassette
US5291346A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Feb 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video system which includes a recorder/player and cassette units adapted to be inserted into the recorder/player with the cassette units including a storing medium and with the cassette units being provided with memory units. The respective memory units are independent of the storing medium and are operable, in response to the cassette being inserted into the recorder/player, to be electrically connected to a read/write unit therein. The memory unit is accommodated in a block member adapted to be mounted in an opening of a standard cassette accommodating and erasure prevention tab, with the recorder/player being provided with a device for contacting the memory unit in such a manner that it can operate compatibly with the standard cassettes with both and without memory units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.