Recording control apparatus
US5084790A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Jul 24, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording/reproducing system according to this invention for use in, for example, a digital audio tape recorder is applied to a type in which recording of an input information signal on a recording medium is restricted, and can ensure releasing of the recording restriction by using release-signal-holding mediums on which a release signal for releasing the recording restriction is recorded. In this case, the release signal is affixed with frequency data for restricting the quantity of the information signal to be recorded on recording medium, and this frequency data is updated in such a way that the greater the number of recording the information signal on recording medium, the smaller the recordable quantity of the information signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.