Device and method for carriage drive control

Details Device and method for carriage drive control Device and method for carriage drive control

2006-10-17

2006-10-17

Chau, Minh (Department: 2854)

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

C400S284000, C318S560000

Reexamination Certificate

active

07121749

ABSTRACT:
A carriage drive control device is provided which moves a carriage at a constant speed in a recording area for recording operation and which moves the carriage to a target stop position in a better way for non-recording operation. A controlled variable of actuator is calculated based on a speed error between a target speed and a moving speed of the carriage. The target speed is set based on a position error between the target stop position and a current position of the carriage, and is not more than a predetermined first speed. When the actuator starts moving the carriage for recording operation, a control rule used for calculation of the controlled is set to a first control rule, and when the actuator starts moving the carriage for non-recording operation, the control rule is set to a second control rule.

REFERENCES:
patent: 6600286 (2003-07-01), Tanaka et al.
patent: 6756760 (2004-06-01), Tanaka et al.
patent: 6809489 (2004-10-01), Yoshida et al.
patent: 2005/0189895 (2005-09-01), Muroi
patent: 2001-310517 (2001-11-01), None
patent: 2003-335011 (2003-11-01), None

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