Electronic apparatus controlling an electric power supply to...

Details Electronic apparatus controlling an electric power supply to... Electronic apparatus controlling an electric power supply to...

2006-08-02

2008-12-30

Sherry, Michael J (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Condition responsive

C700S002000, C700S021000

Reexamination Certificate

active

07471015

ABSTRACT:
In an electronic apparatus such as a DVD recorder (1) which controls electric power supply to a main micro processor (3) and peripheral devices (10, 11, 15) with a auxiliary micro processor (4), a power control method by the auxiliary micro processor (4) can be changed. The main micro processor (3) transmits a power control data, which indicates a control method of the electric power supply, to the auxiliary micro processor (4). The auxiliary micro processor (4) controls the electric power supply by a method indicated by the power control data. Contents of the power control data is composed of sixteen bits data, and each four bits data as a unit indicate a control method of a power control terminal “REG_CTRL1” (41) during a switching off operation of a power switch (6), a control method of the power control terminal “REG_CTRL1” (41) during a switching off operation of the power switch (6), a control method of a power control terminal “PWSW” (43) during the switching off operation of the power switch (6), and a control method of the power control terminal “PWSW” (43) during the switching on operation of the power switch (6).

REFERENCES:
patent: 5471621 (1995-11-01), Ohtsuki
patent: 6611508 (2003-08-01), Abe
patent: 6822764 (2004-11-01), Okabe et al.
patent: 2004/0243734 (2004-12-01), Kitagawa et al.
patent: 64-12321 (1989-01-01), None
patent: 4-333119 (1992-11-01), None
patent: 10-49265 (1998-02-01), None
Tsuneo et al., Machine translation from JPO website for JP-10-49265, Feb. 20, 1998.

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