Title:
ANGLE OR POSITION DETERMINING DEVICE AND METHOD, SERVO DEVICE AND SERVO METHOD, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2002/039067
Kind Code:
A1
Abstract:
A subtractor subtracts the immediately previous desired angle held in a register from the current desired angle held in a desired angle register so as to generate the length (amount) and direction of the change from the immediately previous desired angle to the current desired angle. From the generated length and direction, a model acceleration generation circuit generates model acceleration data. From the count outputted from the current speed sensing counter and the speed data series from the model speed generation circuit, speed error data is generated. From the count outputted from the current position sensing counter and the position data series from the model position generation circuit, position error data is generated. The model acceleration data, speed error data, and the position error data are added by an adder, and the sum is supplied to a driver, from which a current for driving a pan motor is outputted
Inventors:
YAMASHITA NORIYUKI (JP)
Application Number:
PCT/JP2001/009623
Publication Date:
May 16, 2002
Filing Date:
November 02, 2001
Export Citation:
Assignee:
SONY CORP (JP)
YAMASHITA NORIYUKI (JP)
YAMASHITA NORIYUKI (JP)
International Classes:
G01B7/30; G01D5/244; G01D5/245; G05D3/12; H02K7/14; G01B7/00; H02K15/04; H02K26/00; H02K33/18; H02P25/06; H02P29/00; H02K21/12; H02K21/26; (IPC1-7): G01D5/245; G01B7/30; G05D3/12; H02K16/02; H02K35/04
Foreign References:
| JPH02189416A | 1990-07-25 | |||
| JPH05158544A | 1993-06-25 | |||
| JPH08242564A | 1996-09-17 |
Attorney, Agent or Firm:
Sugiura, Masatomo (Ikebukuro Park Bldg. 49-7 Minami Ikebukuro
2-chome Toshima-ku, Tokyo, JP)
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