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| Number | Title | Issue Date |
| 7130248 | real time clock charging circuit The present invention is to provide a real time clock charging circuit mounted on a circuit board, which comprising an booting power input terminal adapted to receive a booting power passed through a first control module to a power storage unit and a second control ... | 10/31/2006 |
| 4446491 | Ultrahigh resolution photocomposition system employing electronic character generation from magnetically stored data A photocomposition system for composing typeface characters on a CRT display using a magnetic font disc formed of plural variable length character sectors wherein each sector includes successive storage cells containing all of the coded signals necessary ... | 05/01/1984 |
| 4419017 | Electronic clock A plug-in electronic clock being operated either by a commercial power source in a normal state or by a D.C. power source in case of a power failure, said electronic clock having means for generation of a pulse train used for a computation of time informa... | 12/06/1983 |
| 4395135 | Optional alarm and battery backup system for a talking timepiece A talking timepiece which has two operating modes is disclosed. In a first mode, a power supply provides power to a computer and speech processing circuitry and the computer responds to the switching of a keyboard voice/tone switch for controlling either ... | 07/26/1983 |
| 4173862 | Booster circuit for electronic timepiece A booster circuit for an electronic timepiece having a power supply and a display device adapted to be driven in a matrix driving mode, which comprises a Cockcroft circuit connected to one terminal of the power supply to provide a plurality of boosted out... | 11/13/1979 |
