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:
Dec. 12, 2006
Filed:
Oct. 13, 1998
Mark Jacob Ebling, Indianapolis, IN (US);
Edwin Arturo Heredia, San Jose, CA (US);
Sithampara Niranjan, Redwood Shores, CA (US);
Chia-yuan Teng, San Diego, CA (US);
Mehmet Kemal Ozkan, Istanbul, TR;
Timothy William Saeger, Carmel, IN (US);
Mark Jacob Ebling, Indianapolis, IN (US);
Edwin Arturo Heredia, San Jose, CA (US);
Sithampara Niranjan, Redwood Shores, CA (US);
Chia-Yuan Teng, San Diego, CA (US);
Mehmet Kemal Ozkan, Istanbul, TR;
Timothy William Saeger, Carmel, IN (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
A device for reading or writing on optical recording media with disk type recognition capability has an optical scanning device and a focus regulating circuit. The object of the invention is to provide a device of this type which can reliably recognize in a short time the type of the recording medium inserted into the device. Another object of the invention is to provide a corresponding process. These objects are attained in that the disk type recognition capability includes a mirror signal generator, a threshold value generator, a counter and an evaluation unit. The process is based on the utilization of a mirror-signal value of the device for disk type recognition.