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:
Feb. 12, 1980
Filed:
Jun. 29, 1978
John C Schisselbauer, Southampton, PA (US);
John S Garczynski, Norristown, PA (US);
Richard J Auchinleck, Norristown, PA (US);
Henry J LoFurno, Philadelphia, PA (US);
Peripheral Dynamics, Inc., Norristown, PA (US);
Abstract
Apparatus is disclosed for reading a data encoded badge or document, wherein the operator manually inserts the badge into the reader. In the preferred embodiment, there is provided a movable slide element having clock holes thereon and means for ensuring that such slide moves in synchronism with the badge as it is inserted into and withdrawn from the reader by the operator. Suitable sensors and accompanying electronics are provided to synchronize the reading of data from the card with the detection of the passage of slide clock holes past a predetermined point in the reader. Special reader electronics is provided to ensure reliable clock detection, and to inhibit false generation of clock signals which could result from sensor ringing.