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.

Date of Patent:
Jul. 03, 1979

Filed:

May. 04, 1978
Applicant:
Inventor:

Paul Sherer, Costa Mesa, CA (US);

Assignee:

MSI Data Corporation, Costa Mesa, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G08C / ;
U.S. Cl.
CPC ...
235463 ; 235472 ; 250468 ;
Abstract

A method and apparatus for reading bar coded data for entry into portable data collection systems. The data is read by an optical wand wherein the light source is automatically and periodically energized for saving the energy of the system. The D.C. offset voltages are determined and stored in an up/down counter during reading or sampling intervals while the analog signal processing circuits are periodically de-energized. The light source is also calibrated to maximize the power savings and minimize reading errors.


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Sherer, Paul. (1979). Method and apparatus for reading bar coded data wherein the light source (U.S. Patent No. 4160156). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4160156

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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