Signal recording/reproducing apparatus with improved power consumption
US7227825B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 13, 2004 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Jul 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal recording/reproducing apparatus includes a first power source unit which generates necessary electric power signals from a commercial power source, a second power source unit which generates a necessary electric power signal from a battery, a recording signal processing unit, and a reproduced signal processing unit. The apparatus further includes time measuring instrument which is supplied with the electric power from the second power source unit, and a charging unit which charges the battery with the electric charges. Whenever the time measuring instrument measures a predetermined time, the generation of the electric power signals from the first power source unit is started, and the battery is charged with the electric charges by the charging unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.