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:
Mar. 23, 1999
Filed:
Oct. 16, 1997
Andrew J Pines, Highland Park, IL (US);
Edward E Pellegrini, Palatine, IL (US);
P & P Marketing, Inc., Elk Grove Village, IL (US);
Abstract
An optical disc changer in which a disc transporter moves a disc from a magazine to an optical disc player for play and then returns the disc to the magazine. An optical counter provides signals to aid in determining the location of the disc transporter with respect to the magazine. A step counter also provides signals to aid in determining the location of the disc transporter with respect to the magazine. The optical counter and step counter cooperate to provide signals to the microcomputer to input the necessary information to the microcomputer for determining the location of the disc transporter in relation to the magazine. The magazine holds discs in a substantially vertical position and the disc transporter moves substantially horizontally with respect to the magazine.