Movement control system and method

Details Movement control system and method Movement control system and method

2007-06-26

2007-06-26

Vu, Ngoc-Yen (Department: 2622)

Television

Camera, system and detail

Support or housing

C348S342000, C348S361000, C348S368000

Reexamination Certificate

active

10681188

ABSTRACT:
A movement control system useful for an apparatus comprising a movable member movable between two positions, a motor and a sensor device for producing an output value which changes during the movement of the movable member. The control system drives the motor in a first amount so as to move the movable member from one of the two positions to the other position and thereafter drives the motor in a second amount to move the movable member toward said one position when the output value of the sensor device remains unchanged. When the sensor device produces a changed output value, the system drives the motor in a third amount to move the movable member toward said one position. Subsequently, the system drives the motor in a fourth amount when the output value of the sensor device is different from the output value before the motor is driven in the first amount, so as to move the movable member toward said other position. The system drives the motor in the second amount when the output values are the same so as to move the movable member toward said one position.

REFERENCES:
patent: 5070407 (1991-12-01), Wheeler et al.
patent: 6580459 (2003-06-01), Uchino
patent: 7079186 (2006-07-01), Hashimoto
patent: 7-199287 (1995-08-01), None
patent: 11-239356 (1999-08-01), None
patent: 2000-162665 (2000-06-01), None
Patent Abstracts of Japan, Publication No. 7-199287, dated Aug. 4, 1995.
Patent Abstracts of Japan, Publication No. 2000-162665, dated Jun. 16, 2000./Discussed in the specification.
Patent Abstracts of Japan, Publication No. 11-239356, dated Aug. 31, 1999./Discussed in the specification.

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