Title:
車載用情報機器
Document Type and Number:
Japanese Patent JP3799014
Kind Code:
B2
Abstract:
An information device for on-vehicle use, includes: a CPU which is capable of normal operation and of standby operation which achieves low power consumption; a first power supply for use during the normal operation of the CPU; a second power supply for use during the standby operation of the CPU; and a power control device which performs ON-OFF control of the first power supply and the second power supply. And the CPU outputs a first signal to the power control device when the CPU transits from the normal operation to the standby operation; the power control device outputs a second signal to the second power supply which turns the second power supply ON when the first signal has been inputted from the CPU, and outputs a third signal to the first power supply which turns the first power supply OFF after a predetermined time period has elapsed after the output of the second signal; the CPU outputs a fourth signal to the power control device when the CPU transits from the standby operation to the normal operation; and the power control device outputs a fifth signal to the first power supply which turns the first power supply ON when the fourth signal has been inputted from the CPU, and outputs a sixth signal to the second power supply which turns the second power supply OFF after a predetermined time period has elapsed after the output of the fifth signal.
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Inventors:
Hirohisa Miyazawa
Application Number:
JP2002534115A
Publication Date:
July 19, 2006
Filing Date:
October 06, 2000
Export Citation:
Assignee:
Xanavi Informatics Co., Ltd.
International Classes:
G06F1/26; B60R16/033; G06F1/32
Domestic Patent References:
| JP10175484A | ||||
| JP10187294A | ||||
| JP11338556A | ||||
| JP7095734A | ||||
| JP1173817U | ||||
| JP5197459A | ||||
| JP2000228829A |
Attorney, Agent or Firm:
Fuyuki Nagai