Title:
POWER SOURCE CONTROLLER, IMAGING APPARATUS, AND POWER SOURCE CONTROL METHOD
Document Type and Number:
Japanese Patent JP2006060745
Kind Code:
A
Abstract:
To prevent a signal processing circuit which shares a power source with a monitor from being erroneously operated, because of a rush current when starting the motor, and to enlarge torque of the motor.
When starting supplying a current to the motor, an imaging apparatus drives the motor after improving immunity to a voltage drop by lowering the clock frequency of or stopping the clock of a signal processing circuit in advance. Consequently, greater torque can be generated and the circuit can be stably operated.
Inventors:
OKABE YOSHIMASA
YAMAMOTO YASUTOSHI
YAMAMOTO YASUTOSHI
Application Number:
JP2004243354A
Publication Date:
March 02, 2006
Filing Date:
August 24, 2004
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N5/232; G02B7/08; G03B17/02; H02J1/00; H04N101/00
Domestic Patent References:
| JP2000196943A | 2000-07-14 | |||
| JP2002314866A | 2002-10-25 | |||
| JP2003244857A | 2003-08-29 | |||
| JPH05143186A | 1993-06-11 | |||
| JP2003060964A | 2003-02-28 | |||
| JPH0717660U | 1995-03-31 | |||
| JP2000196947A | 2000-07-14 | |||
| JPH11202968A | 1999-07-30 | |||
| JP2001296587A | 2001-10-26 |
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito
Tomoyasu Sakaguchi
Hiroki Naito