Position control apparatus

Patent 4734685 Issued on March 29, 1988. Estimated Expiration Date:

March 29, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventor

Watanabe, Yasuhiro

Assignee

Canon Kabushiki Kaisha

Application

No. 06/632025 filed on 07/18/1984

US Classes:

345/157, Cursor mark position control device345/166Optical detector

Examiners

Primary: Curtis, Marshall M.
Assistant: Fatahi-yar, Mahmoud

Attorney, Agent or Firm

Fitzpatrick, Cella, Harper & Scinto

International Class

G06F 3/033 (20060101)

Foreign Application Priority Data

1983-07-28 JP

Abstract

A position control apparatus comprises a pointing device for pointing a position, a microprocessor for computing a distance of movement and a velocity of movement of the pointing device controls moving the position pointed by the pointing device at a velocity corresponding to the velocity detected when the distance of movement and the velocity of movement detected exceed predetermined values.