The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 1994
Filed:
Jan. 27, 1992
Applicant:
Inventor:
Shinya Takenaka, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235466 ; 235463 ;
Abstract
A scan velocity detector for detecting scan velocity when a surface of an object is scanned with a beam of light generated by a light-projecting element; the scan velocity detector comprising light-receiving element to receive light which is reflected, threshold-level setting element for setting threshold levels, delay element for delaying the output of the light-receiving element and counting element for counting the time from when the output of the delay element exceeds a certain threshold level until it reaches a different threshold level; the scan velocity detector being an integral part of a bar code scanner, or similar device.