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:
Apr. 28, 2009
Filed:
Aug. 02, 2001
Reginia Chan, Los Altos, CA (US);
James Lam, Fremont, CA (US);
William L. Densham, Los Gatos, CA (US);
Sheau Chuen Her, Milpitas, CA (US);
Sterling Du, Palo Alto, CA (US);
Reginia Chan, Los Altos, CA (US);
James Lam, Fremont, CA (US);
William L. Densham, Los Gatos, CA (US);
Sheau Chuen Her, Milpitas, CA (US);
Sterling Du, Palo Alto, CA (US);
O2Micro International Limited, Grand Cayman, KY;
Abstract
A low-power digital audio decoding and playing system and method for computing devices provides a low-cost, low power-consumption, long-battery-life audio playing and decoding system, which may be used to play compressed audio files of various formats. In one aspect, a computer system adapted to play audio files comprises a system CPU, memory, at least one drive comprising compressed audio data, and an audio controller coupled to the system CPU, memory and drive. The audio controller is adapted to cause the drive to read the compressed audio data from the drive, to cause the system CPU to decompress the compressed audio data from the drive into decompressed audio data, to cause the decompressed audio to be stored in the memory, and to cause the decompressed audio data to be retrieved from the memory for playing.