Optical reader having placement detecting mechanism

Details Optical reader having placement detecting mechanism Optical reader having placement detecting mechanism

1997-07-25

1999-10-05

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

23546242, 23546248, G06K 710

Patent

active

059628367

ABSTRACT:
A casing of an optical reader comprises a reading head and a handle. The reading head includes a frame portion having a bottom opening of a parallelogram. A first switch and a second switch are provided on the frame portion, adjacent to the bottom opening. The first switch and the second switch are placed symmetrically and diagonally about the center of the bottom opening. When the first switch and the second switch are pressed and the tip ends of them become flush with the frame portion, they are turned on. The optical reading is controlled in accordance with the combination of the signals outputted from the first and second switches.

REFERENCES:
patent: 5285056 (1994-02-01), Tedesco et al.
patent: 5517018 (1996-05-01), Zheng et al.
patent: 5567934 (1996-10-01), Zheng et al.
patent: 5569902 (1996-10-01), Wood et al.
patent: 5589678 (1996-12-01), Atsuni et al.
patent: 5633489 (1997-05-01), Dvorkis et al.
patent: 5656803 (1997-08-01), Seo
patent: 5786586 (1998-07-01), Pidhirny et al.

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