Browse Prior Art Database

A Flexible Methodology for Implementing a Games Compatible Audio Subsystem

IP.com Disclosure Number: IPCOM000123205D
Original Publication Date: 1998-Jul-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Hoang, BT: AUTHOR [+5]

Abstract

The problem that this invention disclosure addresses is the difficulty of OEMs to cost efficiently implement computer main board audio subsystems with varying functionality and configurations.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 55% of the total text.

A Flexible Methodology for Implementing a Games Compatible Audio
Subsystem

   The problem that this invention disclosure addresses is
the difficulty of OEMs to cost efficiently implement computer main
board audio subsystems with varying functionality and
configurations.

   An audio subsystem that can be used for computer games
can have various components that on one hand have increased
functionality, on the other hand though increase the cost of
production and therefore the end user price.  The main functional
components are the following:
  1.  SoundBlaster(TM) compatible register set
  2.  FM synthesis
  3.  Joystick interface
  4.  MIDI interface
  5.  Wavetable synthesis
  6.  3D audio

   By implementing components 1 through 4 above, a base games
compatible system can be released at a minimum cost.  These
functions have been implemented in single silicon configurations by
various chip manufacturers.  Components 4 and 5 are considered
premium components and typically cost as much as twice the cost of
the base system.

   In the case of an OEM wishing to implement a flexible games
compatible audio subsystem, components 4 and/or 5 can be left
unpopulated at manufacturing time for a low cost/low functionality
implementation, or can be populated for a higher cost/higher
functionality system.  This approach presents the following problem.
Manufacturing demands need to be accurately anticipated, otherwise
inventory problems arise when the wrong configurat...