Browse Prior Art Database

Achieving Acceptable Response Time in Client-Server-Based Video Travel Systems

IP.com Disclosure Number: IPCOM000110758D
Original Publication Date: 1994-Jan-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Parikh, SN: AUTHOR

Abstract

Video travel systems typically comprise a truly high capacity optical memory. The high cost of these systems makes them ideal candidates for a client-server-based implementation. However, when several users attempt to get service from the same server, achieving smooth motion (without jerks and freezes), it may become difficult since video travel systems by their very nature involve transferring large amounts of data to clients.

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Achieving Acceptable Response Time in Client-Server-Based Video Travel
Systems

      Video travel systems typically comprise a truly high capacity
optical memory.  The high cost of these systems makes them ideal
candidates for a client-server-based implementation.  However, when
several users attempt to get service from the same server, achieving
smooth motion (without jerks and freezes), it may become difficult
since video travel systems by their very nature involve transferring
large amounts of data to clients.

      This invention proposes taking into account several other
relevant parameters.  It should be realized that the video travel is
subtly different from the other full motion video applications, e.g.,
movies.

      The video travel systems are characterized by stretches of full
motion video interrupted by temporary stops or slow-down of the pace
of travel.  This happens because the traveller is likely to slow down
in parts of the travel sequence which display a more popular spot
(e.g., St.  Peter's square in the Vatican).  Also, he may slow down
his travel in another interesting part of the travel sequence (e.g.,
Fifth Ave.  in Manhattan).

      These timing characteristics can either be specified by the
creator of each travel sequence or can be dynamically collected by
the system.  These timing characteristics can be used in a manner
specified below.

      The user at each client workstation should be able to see
smooth motion on...