AU2002230516A1 - Low power digital audio decoding/playing system for computing devices - Google Patents

Low power digital audio decoding/playing system for computing devices

Info

Publication number
AU2002230516A1
AU2002230516A1 AU2002230516A AU3051602A AU2002230516A1 AU 2002230516 A1 AU2002230516 A1 AU 2002230516A1 AU 2002230516 A AU2002230516 A AU 2002230516A AU 3051602 A AU3051602 A AU 3051602A AU 2002230516 A1 AU2002230516 A1 AU 2002230516A1
Authority
AU
Australia
Prior art keywords
audio
drive
memory
cause
audio data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2002230516A
Inventor
Reginia Chan
William L. Densham
Sterling Du
Sheau Chuen Her
Volodymyr Ivchenko
James Lam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
O2Micro International Ltd
Original Assignee
O2Micro International Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/921,171 external-priority patent/US7526349B2/en
Application filed by O2Micro International Ltd filed Critical O2Micro International Ltd
Publication of AU2002230516A1 publication Critical patent/AU2002230516A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G06F9/4406—Loading of operating system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G06F9/4406—Loading of operating system
    • G06F9/441—Multiboot arrangements, i.e. selecting an operating system to be loaded
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/60—Solid state media
    • G11B2220/61—Solid state media wherein solid state memory is used for storing A/V content

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.
AU2002230516A 2000-12-01 2001-11-29 Low power digital audio decoding/playing system for computing devices Abandoned AU2002230516A1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US25089900P 2000-12-01 2000-12-01
US60/250,899 2000-12-01
US26546601P 2001-01-30 2001-01-30
US60/265,466 2001-01-30
US09/921,171 US7526349B2 (en) 2000-12-01 2001-08-02 Low power digital audio decoding/playing system for computing devices
US09/921,171 2001-08-02
US09/969,060 2001-10-02
US09/969,060 US7522964B2 (en) 2000-12-01 2001-10-02 Low power digital audio decoding/playing system for computing devices
PCT/US2001/044602 WO2002045319A2 (en) 2000-12-01 2001-11-29 Low power digital audio decoding/playing system for computing devices

Publications (1)

Publication Number Publication Date
AU2002230516A1 true AU2002230516A1 (en) 2002-06-11

Family

ID=46204337

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002230516A Abandoned AU2002230516A1 (en) 2000-12-01 2001-11-29 Low power digital audio decoding/playing system for computing devices

Country Status (10)

Country Link
US (1) US7522964B2 (en)
EP (1) EP1381955B1 (en)
JP (2) JP2004536414A (en)
KR (1) KR100705047B1 (en)
CN (1) CN100474281C (en)
AT (1) ATE371897T1 (en)
AU (1) AU2002230516A1 (en)
DE (1) DE60130262T2 (en)
TW (1) TWI236600B (en)
WO (1) WO2002045319A2 (en)

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Also Published As

Publication number Publication date
ATE371897T1 (en) 2007-09-15
EP1381955A2 (en) 2004-01-21
CN100474281C (en) 2009-04-01
JP2004536414A (en) 2004-12-02
EP1381955A4 (en) 2004-12-08
CN1505783A (en) 2004-06-16
EP1381955B1 (en) 2007-08-29
KR100705047B1 (en) 2007-04-06
JP2007220119A (en) 2007-08-30
US20020077713A1 (en) 2002-06-20
KR20040015669A (en) 2004-02-19
DE60130262D1 (en) 2007-10-11
DE60130262T2 (en) 2008-06-19
US7522964B2 (en) 2009-04-21
TWI236600B (en) 2005-07-21
WO2002045319A3 (en) 2003-11-20
WO2002045319A2 (en) 2002-06-06

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