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    Low power digital audio decoding/playing system for computing devices
    2.
    发明授权
    Low power digital audio decoding/playing system for computing devices 失效

    公开(公告)号：US07526349B2

    公开(公告)日：2009-04-28

    申请号：US09921171

    申请日：2001-08-02

    申请人： Reginia Chan ,  James Lam ,  William L. Densham ,  Sheau Chuen Her ,  Sterling Du

    发明人： Reginia Chan ,  James Lam ,  William L. Densham ,  Sheau Chuen Her ,  Sterling Du

    IPC分类号： G06F17/00

    CPC分类号： G06F1/32 ,  G06F9/4406

    摘要： 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.

    Low power CD-ROM player with CD-ROM subsystem for portable computer capable of playing audio CDs without supply energy to CPU
    4.
    发明授权
    Low power CD-ROM player with CD-ROM subsystem for portable computer capable of playing audio CDs without supply energy to CPU 失效
    低功耗CD-ROM播放器，带CD-ROM子系统的便携式计算机能够播放音频CD，而无需为CPU供电

    公开(公告)号：US06711631B1

    公开(公告)日：2004-03-23

    申请号：US09595103

    申请日：2000-06-16

    申请人： Reginia Chan ,  Sterling Du ,  James Lam ,  Aaron Reynoso

    发明人： Reginia Chan ,  Sterling Du ,  James Lam ,  Aaron Reynoso

    IPC分类号： G06F1300

    CPC分类号： G06F1/3256 ,  G06F1/3203 ,  Y02D10/1542 ,  Y02D50/20

    摘要： A computer subsystem of a computer includes a CPU, RAM, display, storage device, input device(s), and a digital-audio generating IC. A CD-ROM subsystem of the computer includes a CD-ROM drive and CD-ROM control buttons for controlling CD-ROM drivers operation while playing audio CDs. An audio-interface IC of the CD-ROM subsystem couples a bus of the computer subsystem to the CD-ROM drive, and to the control buttons. The audio-interface IC, in one operating mode, relays commands and data between the bus and the CD-ROM drive. A second operating mode permits turning the computer subsystem off while the audio-interface IC autonomously responds to the control buttons and transmits commands to the CD-ROM drive for playing an audio CD.

    摘要翻译： 计算机的计算机子系统包括CPU，RAM，显示器，存储设备，输入设备和数字音频产生IC。 计算机的CD-ROM子系统包括用于在播放音频CD时控制CD-ROM驱动器操作的CD-ROM驱动器和CD-ROM控制按钮。 CD-ROM子系统的音频接口IC将计算机子系统的总线与CD-ROM驱动器和控制按钮耦合。 音频接口IC在一种操作模式下，中继总线和CD-ROM驱动器之间的命令和数据。 第二操作模式允许关闭计算机子系统，同时音频接口IC自主地响应控制按钮，并将命令发送到用于播放音频CD的CD-ROM驱动器。

    Low power CD-ROM player with CD-ROM subsystem for portable computer capable of isolating digital computer bus from CD-ROM drive
    5.
    发明授权
    Low power CD-ROM player with CD-ROM subsystem for portable computer capable of isolating digital computer bus from CD-ROM drive 有权
    低功率CD-ROM播放器，带CD-ROM子系统，便携式计算机能够将数字计算机总线与CD-ROM驱动器隔离

    公开(公告)号：US07243168B2

    公开(公告)日：2007-07-10

    申请号：US10806529

    申请日：2004-03-23

    申请人： Reginia Chan ,  Sterling Du ,  James Lam ,  Aaron Reynoso

    发明人： Reginia Chan ,  Sterling Du ,  James Lam ,  Aaron Reynoso

    IPC分类号： G06F13/00 ,  G11B17/22

    CPC分类号： G06F1/3256 ,  G06F1/3203 ,  Y02D10/1542 ,  Y02D50/20

    摘要： A computer subsystem of a computer includes a CPU, RAM, display, storage device, input device(s), and a digital-audio generating IC. A CD-ROM subsystem of the computer includes a CD-ROM drive and CD-ROM control buttons for controlling CD-ROM drivers operation while playing audio CDs. An audio-interface IC of the CD-ROM subsystem couples a bus of the computer subsystem to the CD-ROM drive, and to the control buttons. The audio-interface IC, in one operating mode, relays commands and data between the bus and the CD-ROM drive. A second operating mode permits turning the computer subsystem off while the audio-interface IC autonomously responds to the control buttons and transmits commands to the CD-ROM drive for playing an audio CD.

    摘要翻译： 计算机的计算机子系统包括CPU，RAM，显示器，存储设备，输入设备和数字音频产生IC。 计算机的CD-ROM子系统包括用于在播放音频CD时控制CD-ROM驱动器操作的CD-ROM驱动器和CD-ROM控制按钮。 CD-ROM子系统的音频接口IC将计算机子系统的总线与CD-ROM驱动器和控制按钮耦合。 音频接口IC在一种操作模式下，中继总线和CD-ROM驱动器之间的命令和数据。 第二操作模式允许关闭计算机子系统，同时音频接口IC自主地响应控制按钮，并将命令发送到用于播放音频CD的CD-ROM驱动器。

    Low power CD-ROM player for portable computer
    6.
    发明授权
    Low power CD-ROM player for portable computer 有权
    便携式电脑的低功率CD-ROM播放器

    公开(公告)号：US06226237B1

    公开(公告)日：2001-05-01

    申请号：US09136207

    申请日：1998-08-19

    申请人： Reginia Chan ,  Sterling Du ,  James Lam ,  Aaron Reynoso

    发明人： Reginia Chan ,  Sterling Du ,  James Lam ,  Aaron Reynoso

    IPC分类号： G11B1722

    CPC分类号： G06F1/3256 ,  G06F1/3203 ,  Y02D10/1542 ,  Y02D50/20

    摘要： A computer subsystem of a computer includes a CPU, RAM, display, storage device, input device(s), and a digital-audio generating IC. A CD-ROM subsystem of the computer includes a CD-ROM drive and CD-ROM control buttons for controlling CD-ROM drive's operation while playing audio CDs. An audio-interface IC of the CD-ROM subsystem couples a bus of the computer subsystem to the CD-ROM drive, and to the control buttons. The audio-interface IC, in one operating mode, relays commands and data between the bus and the CD-ROM drive. A second operating mode permits turning the computer subsystem off while the audio-interface IC autonomously responds to the control buttons and transmits commands to the CD-ROM drive for playing an audio CD.

    摘要翻译： 计算机的计算机子系统包括CPU，RAM，显示器，存储设备，输入设备和数字音频产生IC。 计算机的CD-ROM子系统包括用于控制CD-ROM驱动器在播放音频CD时的操作的CD-ROM驱动器和CD-ROM控制按钮。 CD-ROM子系统的音频接口IC将计算机子系统的总线与CD-ROM驱动器和控制按钮耦合。 音频接口IC在一种操作模式下，中继总线和CD-ROM驱动器之间的命令和数据。 第二操作模式允许关闭计算机子系统，同时音频接口IC自主地响应控制按钮，并将命令发送到用于播放音频CD的CD-ROM驱动器。

    Low-power audio CD player for portable computers
    7.
    发明申请
    Low-power audio CD player for portable computers 有权

    公开(公告)号：US20060253628A1

    公开(公告)日：2006-11-09

    申请号：US11481604

    申请日：2006-07-05

    申请人： Reginia Chan ,  James Lam

    发明人： Reginia Chan ,  James Lam

    IPC分类号： G06F13/38

    CPC分类号： G11B33/12 ,  G06F1/3203 ,  G06F1/3287 ,  G11B31/02 ,  Y02D10/171

    摘要： A low-power audio CD player for portable computers permits operation of the CD-ROM subsystem when power is not being supplied to the computer subsystem. In one embodiment of the invention, the computer subsystem comprises a system CPU, a digital-audio generating circuit, a digital computer bus coupling the CPU and the digital-audio generator circuit, and a digital computer bus controller. The CD audio subsystem comprises an audio device capable of playing an audio CD and coupled to the digital computer bus controller, an audio amplifier circuit coupled to the audio device, and an audio interface coupled to the digital computer bus in parallel to the digital computer bus controller and the audio device. The audio interface is adapted to generate signals to operate the audio device and play the audio CD when power is not being supplied to the computer subsystem or to the CPU. In method form, a method for playing an audio CD in a computer system comprises deenergizing a computer CPU; and controlling, using an audio interface coupled to a digital computer bus in parallel to a digital computer bus controller and an audio device capable of playing an audio CD, the audio device and a computer audio amplifier to play an audio CD without supplying energy to the CPU.

    Low power CD-ROM player with CD-ROM subsystem for portable computer capable of playing audio CDs without supply energy to CPU
    8.
    发明授权
    Low power CD-ROM player with CD-ROM subsystem for portable computer capable of playing audio CDs without supply energy to CPU 有权
    低功耗CD-ROM播放器，带CD-ROM子系统的便携式计算机能够播放音频CD，而无需为CPU供电

    公开(公告)号：US07130930B1

    公开(公告)日：2006-10-31

    申请号：US11026697

    申请日：2004-12-30

    申请人： Reginia Chan ,  James Lam

    发明人： Reginia Chan ,  James Lam

    IPC分类号： G06F13/00 ,  G11B17/22

    CPC分类号： G11B33/12 ,  G06F1/3203 ,  G06F1/3287 ,  G11B31/02 ,  Y02D10/171

    摘要： A low-power audio CD player for portable computers permits operation of the CD-ROM subsystem when power is not being supplied to the computer subsystem. In one embodiment of the invention, the computer subsystem comprises a system CPU, a digital-audio generating circuit, a digital computer bus coupling the CPU and the digital-audio generator circuit, and a digital computer bus controller. The CD audio subsystem comprises an audio device capable of playing an audio CD and coupled to the digital computer bus controller, an audio amplifier circuit coupled to the audio device, and an audio interface coupled to the digital computer bus in parallel to the digital computer bus controller and the audio device. The audio interface is adapted to generate signals to operate the audio device and play the audio CD when power is not being supplied to the computer subsystem or to the CPU. In method form, a method for playing an audio CD in a computer system comprises deenergizing a computer CPU; and controlling, using an audio interface coupled to a digital computer bus in parallel to a digital computer bus controller and an audio device capable of playing an audio CD, the audio device and a computer audio amplifier to play an audio CD without supplying energy to the CPU.

    摘要翻译： 用于便携式计算机的低功率音频CD播放机允许在没有向计算机子系统供电的情况下操作CD-ROM子系统。 在本发明的一个实施例中，计算机子系统包括系统CPU，数字音频发生电路，耦合CPU和数字音频发生器电路的数字计算机总线以及数字计算机总线控制器。 CD音频子系统包括能够播放音频CD并耦合到数字计算机总线控制器的音频设备，耦合到音频设备的音频放大器电路以及与数字计算机总线并行连接到数字计算机总线的音频接口 控制器和音频设备。 音频接口适于产生信号以操作音频设备，并且当未向计算机子系统或CPU供电时播放音频CD。 在方法形式中，用于在计算机系统中播放音频CD的方法包括使计算机CPU断电; 以及使用耦合到数字计算机总线的音频接口并行地控制数字计算机总线控制器和能够播放音频CD的音频设备，音频设备和计算机音频放大器来播放音频CD而不向 中央处理器。

    Low-power audio CD player for portable computers
    9.
    发明授权
    Low-power audio CD player for portable computers 失效
    便携式电脑的低功耗音频CD播放器

    公开(公告)号：US06895448B2

    公开(公告)日：2005-05-17

    申请号：US09867315

    申请日：2001-05-29

    申请人： Reginia Chan ,  James Lam

    发明人： Reginia Chan ,  James Lam

    IPC分类号： G06F1/26 ,  G06F1/32 ,  G06F3/16 ,  G06F13/00 ,  G11B17/22

    CPC分类号： G06F1/3203 ,  G06F1/26 ,  G06F1/3256 ,  G06F3/165 ,  Y02D10/1542

    摘要： A low-power audio CD player for portable computers permits operation of the CD-ROM subsystem when power is not being supplied to the computer subsystem. In one embodiment of the invention, the computer subsystem comprises a system CPU, a digital-audio generating circuit, a digital computer bus coupling the CPU and the digital-audio generator circuit, and a digital computer bus controller. The CD audio subsystem comprises an audio device capable of playing an audio CD and coupled to the digital computer bus controller, an audio amplifier circuit coupled to the audio device, and an audio interface coupled to the digital computer bus in parallel to the digital computer bus controller and the audio device. The audio interface is adapted to generate signals to operate the audio device and play the audio CD when power is not being supplied to the computer subsystem or to the CPU. In method form, a method for playing an audio CD in a computer system comprises deenergizing a computer CPU; and controlling, using an audio interface coupled to a digital computer bus in parallel to a digital computer bus controller and an audio device capable of playing an audio CD, the audio device and a computer audio amplifier to play an audio CD without supplying energy to the CPU.

    摘要翻译： 用于便携式计算机的低功率音频CD播放机允许在没有向计算机子系统供电的情况下操作CD-ROM子系统。 在本发明的一个实施例中，计算机子系统包括系统CPU，数字音频发生电路，耦合CPU和数字音频发生器电路的数字计算机总线以及数字计算机总线控制器。 CD音频子系统包括能够播放音频CD并耦合到数字计算机总线控制器的音频设备，耦合到音频设备的音频放大器电路以及与数字计算机总线并行连接到数字计算机总线的音频接口 控制器和音频设备。 音频接口适于产生信号以操作音频设备，并且当未向计算机子系统或CPU供电时播放音频CD。 在方法形式中，用于在计算机系统中播放音频CD的方法包括使计算机CPU断电; 以及使用耦合到数字计算机总线的音频接口并行地控制数字计算机总线控制器和能够播放音频CD的音频设备，音频设备和计算机音频放大器来播放音频CD而不向 中央处理器。

    Low-power CD-ROM player with CD-ROM subsystem for portable computer capable of playing audio CDs without supply energy to CPU
    10.
    发明授权
    Low-power CD-ROM player with CD-ROM subsystem for portable computer capable of playing audio CDs without supply energy to CPU 有权
    具有CD-ROM子系统的便携式计算机的低功耗CD-ROM播放器能够播放音频CD，而不向CPU供电

    公开(公告)号：US07359998B2

    公开(公告)日：2008-04-15

    申请号：US11481604

    申请日：2006-07-05

    申请人： Reginia Chan ,  James Lam

    发明人： Reginia Chan ,  James Lam

    IPC分类号： G06F13/38 ,  G06F13/00 ,  G11B17/22

    CPC分类号： G11B33/12 ,  G06F1/3203 ,  G06F1/3287 ,  G11B31/02 ,  Y02D10/171

    摘要： A low-power audio CD player for portable computers permits operation of the CD-ROM subsystem when power is not being supplied to the computer subsystem. In one embodiment of the invention, the computer subsystem comprises a system CPU, a digital-audio generating circuit, a digital computer bus coupling the CPU and the digital-audio generator circuit, and a digital computer bus controller. The CD audio subsystem comprises an audio device capable of playing an audio CD and coupled to the digital computer bus controller, an audio amplifier circuit coupled to the audio device, and an audio interface coupled to the digital computer bus in parallel to the digital computer bus controller and the audio device. The audio interface is adapted to generate signals to operate the audio device and play the audio CD when power is not being supplied to the computer subsystem or to the CPU. In method form, a method for playing an audio CD in a computer system comprises deenergizing a computer CPU; and controlling, using an audio interface coupled to a digital computer bus in parallel to a digital computer bus controller and an audio device capable of playing an audio CD, the audio device and a computer audio amplifier to play an audio CD without supplying energy to the CPU.

    摘要翻译： 用于便携式计算机的低功率音频CD播放机允许在没有向计算机子系统供电的情况下操作CD-ROM子系统。 在本发明的一个实施例中，计算机子系统包括系统CPU，数字音频发生电路，耦合CPU和数字音频发生器电路的数字计算机总线以及数字计算机总线控制器。 CD音频子系统包括能够播放音频CD并耦合到数字计算机总线控制器的音频设备，耦合到音频设备的音频放大器电路以及与数字计算机总线并行连接到数字计算机总线的音频接口 控制器和音频设备。 音频接口适于产生信号以操作音频设备，并且当未向计算机子系统或CPU供电时播放音频CD。 在方法形式中，用于在计算机系统中播放音频CD的方法包括使计算机CPU断电; 以及使用耦合到数字计算机总线的音频接口并行地控制数字计算机总线控制器和能够播放音频CD的音频设备，音频设备和计算机音频放大器来播放音频CD而不向 中央处理器。