Clock radio volume control appraratus
US5502771A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1995 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Mar 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G13/023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A clock radio volume control apparatus including a conventional volume control apparatus and a supplemental volume control device for use in operation of the clock radio in sleep mode at substantially reduced volume levels including electronic means for controlling whether the conventional volume control or the sleep volume control is activated based upon a timer or other sleep switch responsive to energize a relay for choosing the sleep or standard mode of operation. A delay device is included to prevent a momentary significant increase in volume at the end of the sleep period for a predetermined time to prevent awakening of a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.