Television – Camera – system and detail – Power supply
Patent
1997-03-04
1998-07-21
Boudreau, Leo
Television
Camera, system and detail
Power supply
348375, 396301, 396279, H04N 5225, H04N 5222
Patent
active
057841055
ABSTRACT:
A video camera comprises a built-in secondary battery, a terminal used for connection with an external power source, and a main switch for controlling the supply of electric power to a circuit part provided for a control system and a signal processing system. The video camera is arranged such that the circuit part is connected to the built-in secondary battery or to the external power source when the main switch is closed and that the built-in secondary battery can be connected to the external power source when the main switch is open.
REFERENCES:
patent: 4782355 (1988-11-01), Sasaki et al.
patent: 4792762 (1988-12-01), Shinna et al.
patent: 4920307 (1990-04-01), Iketani
patent: 4965462 (1990-10-01), Crawford
patent: 5164761 (1992-11-01), Isono et al.
patent: 5220369 (1993-06-01), Sasaki
patent: 5424800 (1995-06-01), Suzuki
Boudreau Leo
Canon Kabushiki Kaisha
Shalwala Bipin
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