Monolithic PC audio circuit

US6272465A · kind A · utility

Assignee

• Legerity, Inc. · US

Inventors

• Larry D. Hewitt · Austin, US
• Jeffrey M. Blumenthal · Fremont, US
• Geoffrey E. Brehmer · Rockdale, US
• Glen W. Brown · Mundelein, US
• Carlin D. Cabler · Austin, US
• Ryan Feemster · Austin, US
• David Guercio · Austin, US
• Dale E. Gulick · Austin, US
• Michael J. Hogan · Portland, US
• Alfredo R. Linz · Austin, US
• David Norris · Austin, US
• Paul G. Schnizlein · Austin, US
• Martin P. Soques · Austin, US
• Michael E. Spak · Kyle, US
• David N. Suggs · Austin, US
• Alan T. Torok · Pflugerville, US

Key dates

• Filing date: Sep 22, 1997
• Grant date: Aug 7, 2001
• Expiry date: Sep 22, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G10H2250/611
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A monolithic integrated circuit for providing enhanced audio performance in personal computers. The monolithic circuit includes a wavetable synthesizer; a full function stereo coding and decoding circuit including analog-to-digital and digital-to-analog conversion; data compression, and mixing and muxing of analog signals; a local memory control module for interfacing with external memory; a game-MIDI port module; a system bus interface; and a control module for compatibility and circuit control functions.