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:
Nov. 10, 2009
Filed:
Feb. 10, 2003
Shinya Abe, Kadoma, JP;
Shin-ichi Tanaka, Kyotanabe, JP;
Hiroshi Ogawa, Tokyo, JP;
Jacobus Petrus Josephus Heemskerk, Eindhoven, NL;
Tamotsu Yamagami, Tokyo, JP;
Cornelis Marinus Schep, Eindhoven, NL;
Shinya Abe, Kadoma, JP;
Shin-ichi Tanaka, Kyotanabe, JP;
Hiroshi Ogawa, Tokyo, JP;
Jacobus Petrus Josephus Heemskerk, Eindhoven, NL;
Tamotsu Yamagami, Tokyo, JP;
Cornelis Marinus Schep, Eindhoven, NL;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Panasonic Corporation, Osaka, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical disc or other optical recording medium enables reading barcode-shaped-BCA marks in a burst cutting area (BCA) with tracking on while making tampering with the BCA marks difficult. The optical dischas a first areacontaining tracks at a first track pitch d, and a second areacontaining tracks at a second track pitch d. The barcode-shaped marksare recorded in the second area, and the second track pitch is wider than the first track pitch.