Browse Prior Art Database

Multiple Accessing of Single Laser Disk Media

IP.com Disclosure Number: IPCOM000104268D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 1 page(s) / 44K

Publishing Venue

IBM

Related People

Denijs, R: AUTHOR

Abstract

Disclosed is a device, the Multi-Access Laser Disk Player, that permits simultaneous, independent access to information on a single laser disk. This device is suitable for server applications, particularly within a multimedia network system, because multiple users may view different segments of information on the same laser disk at the same time without blocking one another.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 88% of the total text.

Multiple Accessing of Single Laser Disk Media

      Disclosed is a device,  the Multi-Access Laser Disk Player,
that permits simultaneous, independent access to information on a
single laser disk.  This device is suitable for server applications,
particularly within a multimedia network system, because multiple
users may view different segments of information on the same laser
disk at the same time without blocking one another.

      The figure shows a diagrammatic view of a laser disk player
consisting of a single-media [1], being driven by a media-drive unit
[2]  Multiple read-head subassemblies are used to access,
independently, the information on media 1.  Each read-head
subassembly can consist of a read-head [3], a read-head positioner
[4], a data processing/transmission logic [5], and read-head control
logic [6].  This subassembly has two interface ports, 7 and 8.  Port
7 is the control that permits the user to position the read-head in
order to access a specific segment of information from media 1.  Port
8 is the data-out port that provides data to the user.

      In use, a source media (laser disk) [1], is placed on media
drive [2], and spun to operational speed.  Control of one read- head
subassembly is given to a single user who is able to position the
read-head at the chosen segment of information on the source media
[1].  At this time, the chosen segment from the data-output port [8]
will be received.

      Similarly, additional users...