Dropout compensation circuitry
US4323934A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1980 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Mar 27, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/00992
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for compensating for the absence of signals among a plurality of correlated signals, which occur simultaneously and which have carrier components, is disclosed herein. Such apparatus comprises detector means responsive to the absence of the carrier for longer than a predetermined time for selectively connecting output signals from channels where the carriers are present to the outputs of those channels where carriers are absent. The apparatus of the invention operates in real time without delay devices. Preferably, the invention is embodied in an apparatus for reproducing magnetically recorded, stereophonic signals, functioning to prevent dropouts from affecting the quality of the output signals and the sound corresponding thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.