| US 7,538,455 B2 | ||
| Electronic device, power source control method, ROF system and its power supplying method and remote unit | ||
| Masayuki Takami, Hino (Japan); and Yoshiki Namba, Fuchu (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Jun. 06, 2006, as Appl. No. 11/446,959. | ||
| Claims priority of application No. 2005-167279 (JP), filed on Jun. 07, 2005. | ||
| Prior Publication US 2006/0281434 A1, Dec. 14, 2006 | ||
| Int. Cl. H01H 43/04 (2006.01); H02J 3/14 (2006.01) | ||
| U.S. Cl. 307—141 [307/140; 323/351; 323/908] | 15 Claims |

| 1. An electronic device to which power can be supplied from a power supply connected with other electronic devices, the electronic
device comprising:
a switch unit having an input terminal, an output terminal and a control terminal which is adapted to receive a control signal
to connect a circuit between the input terminal and the output terminal;
a number input unit to which unique identification information can be input to set a corresponding delay time; and
a timing unit connected to the power supply and arranged to apply the control signal to the control terminal after the set
delay time has lapsed after the power supply has been switched on.
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