Registers – Coded record sensors – Particular sensor structure
Patent
1994-10-20
1996-01-02
Pitts, Harold
Registers
Coded record sensors
Particular sensor structure
235455, 235470, 235474, G06K 710, G06K 714
Patent
active
054810965
ABSTRACT:
A bar code reader for an article (17) which is moved at least substantially in one direction (26) has a scanner (12) which generates a scanning light beam (11) which scans a surface (18) of the article (17) linewise, a light receiving arrangement (13) which includes an electronic evaluation circuit (14) with which bar codes (16) applied to the surface of the article (17) and scanned by the light beam (11) can be recognized and which is arranged outside of the parth of movement (20) of the article (17) and directed towards the front surface (18) of the article (17) as seen in the direction of movement. A detection means (27, 28) for the location of the scanning surface (18) at which the scanning is to start, and optionally a detection means (29) for the speed of movement of the article (17) are connected to an electronic control and evaluation circuit (14) which acts on an advance means ( 30, 31) for the displacement of the scanning line (23) in such a way that the spacing of the scanner (12) from the scanning line (23) on the surface (18) of the article (17) remains at least substantially the same.
REFERENCES:
patent: 4064390 (1977-12-01), Hildebrand
patent: 4483615 (1984-11-01), Bimringer
patent: 5185822 (1993-02-01), Miura
JP 56-121182 A. In: Patents Abstracts of Japan, P094, Dec. 19, 1981, vol. 5, No. 201.
Hippenmeyer Heinrich
Kilian Reinhold
Erwin Sick GmbH - Optik-Elektronik
Pitts Harold
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