Method and apparatus for controlling panning/tilting motor...

Details Method and apparatus for controlling panning/tilting motor... Method and apparatus for controlling panning/tilting motor...

2006-01-27

2009-10-13

Mahoney, Christopher E (Department: 2862)

Photography

Camera support

Surveillance type

C396S439000, C348S143000

Reexamination Certificate

active

07600929

ABSTRACT:
A method and apparatus for controlling a panning/tilting motor of a monitoring camera is disclosed. The position or speed of the motor is controlled based on the output of a hall sensor built in the motor without any position detection device such as encoder, so that the closed loop control of the panning/tilting motor is accurately performed, and the position coordinate of the panning/tilting motor is not distorted when the motor is out of step.

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patent: 6922030 (2005-07-01), Chou
patent: 2006/0098092 (2006-05-01), Park
patent: 04-248794 (1992-09-01), None
patent: 06-086592 (1994-03-01), None
patent: 09-018747 (1997-01-01), None
patent: 10-111304 (1998-04-01), None
patent: 11-341335 (1999-12-01), None

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