Method and apparatus for detecting a hazard in a moveable...

Details Method and apparatus for detecting a hazard in a moveable... Method and apparatus for detecting a hazard in a moveable...

2006-07-04

2006-07-04

Fletcher, Marlon T. (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

C318S265000, C318S266000, C318S466000, C049S026000, C049S028000, C312S007100, C312S009410

Reexamination Certificate

active

07071647

ABSTRACT:
A navigation apparatus has a movable face that is allowed to move bidirectionally between a retracted state and an extended state. A range of movement of the movable face is divided at a predetermined position, so that the movement of the movable face has an initial extending stage or initial retracting stage, and a stage subsequent to the initial extending stage or initial retracting stage. A controlling system for driving and controlling the movable face moves the movable face at a lower speed in the subsequent stage than in the initial extending stage or initial retracting stage. Furthermore, a hazard detecting time for the subsequent stage is chosen to be shorter than a hazard detecting time for the initial extending stage or initial retracting stage. Accordingly, the movable face is moved quickly and smoothly in the initial stage while improving safety in the subsequent stage.

REFERENCES:
patent: 6648579 (2003-11-01), Vartanian, Sr.
patent: 6747364 (2004-06-01), Shibuya et al.
patent: 6897630 (2005-05-01), Murray et al.
patent: 6935597 (2005-08-01), Shibuya
patent: 2005/0012488 (2005-01-01), Fitzgibbon et al.
patent: 2000-155018 (2000-06-01), None

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