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:
Jun. 06, 2000
Filed:
Jun. 26, 1997
Muneyasu Maeda, Kanagawa, JP;
Tadao Suzuki, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A recording medium conforming with a specific physical format of Digital Video Disc/Digital Versatile Disc (DVD) or the like is contrived to achieve superior sound quality in audio data recording and reproduction, common usability of data, and enhanced interchangeability of an apparatus. In this recording medium, identification data signifying the existence of recorded data of a second data format such as Direct Stream Digital Disc (DSD) different from a first data format such as DVD is included in physical format management information recorded in a lead-in area. The data of such second data format is recorded in a data area in conformity with the physical format management information. And second data management information of a Table of Contents (TOC) is recorded at a predetermined position to manage an operation of reproducing the data of the second data format.