Systems and methods for direct memory access
    1.
    发明授权
    Systems and methods for direct memory access 有权
    用于直接内存访问的系统和方法

    公开(公告)号:US07376762B2

    公开(公告)日:2008-05-20

    申请号:US11263227

    申请日:2005-10-31

    CPC classification number: G06F13/28

    Abstract: A system and method for providing direct memory access is disclosed. In a particular embodiment, a direct memory access module is disclosed that includes a memory, a first interface coupled to a processor, and a second interface coupled to a peripheral module. A first instruction received from the first interface is stored in the memory. The first instruction includes a number of programmed input/output words to be provided to the peripheral module via the second interface. The direct memory access module also includes an instruction execution unit to process the first instruction.

    Abstract translation: 公开了一种用于提供直接存储器访问的系统和方法。 在特定实施例中,公开了一种直接存储器访问模块,其包括存储器,耦合到处理器的第一接口和耦合到外围模块的第二接口。 从第一接口接收的第一指令被存储在存储器中。 第一指令包括经由第二接口提供给外围模块的多个已编程的输入/输出字。 直接存储器访问模块还包括处理第一指令的指令执行单元。

    Circuit for use with multifunction handheld device with video functionality
    2.
    发明申请
    Circuit for use with multifunction handheld device with video functionality 有权
    具有视频功能的多功能手持设备使用的电路

    公开(公告)号:US20070052793A1

    公开(公告)日:2007-03-08

    申请号:US11494798

    申请日:2006-07-27

    Abstract: A circuit for use by a multifunction handheld device is coupleable to an audio output device, the multifunction handheld device including a color video display device and a host interface that is coupleable to a host device. The circuit includes a processing module and a memory interface, operably coupled to a memory that stores a plurality of digitally formatted files, and that stores operational instructions that cause the processing module to receive a first digitally formatted file of the plurality of digitally formatted files from the host device when coupled to the host device via the host interface and store the first digitally formatted file in the memory, wherein the first digitally formatted file includes a compressed audio file; receive a second digitally formatted file of the plurality of digitally formatted files from a host device when coupled to the host device via a host interface and store the second digitally formatted file in the memory, wherein the second digitally formatted file includes a compressed video file; playback a selected one of the plurality of digitally formatted files, the playback including the generation of an audio output signal for the audio output device, when the first digitally formatted file is selected, and the playback including rendering the selected one of the digitally formatted files for the color video display device, when the first digitally formatted file is selected.

    Abstract translation: 由多功能手持设备使用的电路可耦合到音频输出设备,所述多功能手持设备包括可与主机设备耦合的彩色视频显示设备和主机接口。 电路包括处理模块和存储器接口,可操作地耦合到存储多个数字格式的文件的存储器,并且存储操作指令,使得处理模块从多个数字格式的文件中接收第一数字格式的文件, 所述主机设备经由所述主机接口耦合到所述主机设备并将所述第一数字格式的文件存储在所述存储器中,其中所述第一数字格式化文件包括压缩音频文件; 当经由主机接口耦合到所述主机设备时,从所述主机设备接收所述多个数字格式文件的第二数字格式化文件,并将所述第二数字格式文件存储在所述存储器中,其中所述第二数字格式化文件包括压缩视频文件; 播放所选择的多个数字格式的文件中的一个,当选择第一数字格式化的文件时,播放包括产生音频输出设备的音频输出信号,并且播放包括渲染所选择的数字格式的文件之一 对于彩色视频显示设备,当选择第一个数字格式的文件时。

    Controlling Power Consumption In A Radio Tuner
    3.
    发明申请
    Controlling Power Consumption In A Radio Tuner 有权
    控制无线电调谐器中的功耗

    公开(公告)号:US20120108191A1

    公开(公告)日:2012-05-03

    申请号:US12938451

    申请日:2010-11-03

    Applicant: Matthew Henson

    Inventor: Matthew Henson

    CPC classification number: H04W52/0229 H04H2201/18 Y02D70/00

    Abstract: According to one aspect of the present invention, a controller is coupled to at least first and second signal processors (at least one of which includes analog demodulation circuitry and another of which includes digital demodulation circuitry). The controller may operate to disable the first signal processor responsive to a control signal that indicates that a second signal (corresponding to a demodulator output) is available from the second signal processor.

    Abstract translation: 根据本发明的一个方面,控制器耦合到至少第一和第二信号处理器(其中至少一个包括模拟解调电路,另一个包括数字解调电路)。 控制器可以操作以响应于指示来自第二信号处理器的第二信号(对应于解调器输出)的控制信号来禁用第一信号处理器。

    Circuit for use in multifunction handheld device having a radio receiver
    4.
    发明申请
    Circuit for use in multifunction handheld device having a radio receiver 审中-公开
    用于具有无线电接收机的多功能手持设备的电路

    公开(公告)号:US20070078548A1

    公开(公告)日:2007-04-05

    申请号:US11494790

    申请日:2006-07-27

    Abstract: A circuit for use by a multifunction handheld device is coupleable to an audio output device. The circuit includes a processing module and a memory interface, operably coupled to the processing module and a memory that stores a plurality of digitally formatted files, and that stores operational instructions that cause the processing module to: receive a first digitally formatted file of the plurality of digitally formatted files from the host device when coupled to the host device via the host interface and store the first digitally formatted file in the memory, wherein the first digitally formatted file includes a compressed audio file; receive an analog audio signal from a radio tuner; generate digital input data from the analog audio signal; compress the digital input data to form a second digitally formatted file of the plurality of digitally formatted files; store the second digitally formatted file in the memory; and playback a selected one of the plurality of digitally formatted files, the playback including the generation of an audio output signal for the audio output device.

    Abstract translation: 由多功能手持设备使用的电路可耦合到音频输出设备。 电路包括可操作地耦合到处理模块的处理模块和存储器接口,以及存储多个数字格式化的文件的存储器,并且存储使处理模块执行以下操作的操作指令:接收多个第一数字格式的文件 通过所述主机接口耦合到所述主机设备,并且将所述第一数字格式的文件存储在所述存储器中时,来自所述主机设备的数字格式化文件,其中所述第一数字格式化文件包括压缩音频文件; 从无线电调谐器接收模拟音频信号; 从模拟音频信号生成数字输入数据; 压缩数字输入数据以形成多个数字格式化文件的第二数字格式化文件; 将第二个数字格式的文件存储在内存中; 并播放所述多个数字格式的文件中的所选择的一个,所述播放包括产生音频输出装置的音频输出信号。

    Circuit for use in cellular telephone with video functionality
    5.
    发明申请
    Circuit for use in cellular telephone with video functionality 审中-公开
    用于具有视频功能的蜂窝电话的电路

    公开(公告)号:US20070052792A1

    公开(公告)日:2007-03-08

    申请号:US11494791

    申请日:2006-07-27

    Abstract: A circuit for use by a cellular telephone is coupleable to an audio output device, the cellular telephone including cellphone functionality, a Bluetooth interface, and a color video display device. The circuit includes a processing module and a memory interface, operably coupled to the processing module and a memory that stores a plurality of digitally formatted files, and that stores operational instructions that cause the processing module to: store a first digitally formatted file in the memory, wherein the first digitally formatted file includes a compressed audio file; capture a video recording from a video capture device coupled thereto; process the video recording into a second digitally formatted file and store the second digitally formatted file in the memory; and playback a selected one of the plurality of digitally formatted files, the playback including the generation of an audio output signal for the audio output device, when the first digitally formatted file is selected, and the playback including rendering the selected one of the digitally formatted files for the color video display device, when the first digitally formatted file is selected.

    Abstract translation: 由蜂窝电话使用的电路可耦合到音频输出设备,蜂窝电话包括手机功能,蓝牙接口和彩色视频显示设备。 电路包括可操作地耦合到处理模块的处理模块和存储器接口,以及存储多个数字格式化文件的存储器,并且存储操作指令,该操作指令使得处理模块:将第一数字格式的文件存储在存储器中 其中,所述第一数字格式化文件包括压缩音频文件; 从与其耦合的视频捕获设备捕获视频记录; 将视频记录处理成第二数字格式的文件,并将第二数字格式的文件存储在存储器中; 并且当选择所述第一数字格式化文件时,播放所述多个数字格式化文件中的所选择的一个,所述播放包括用于所述音频输出设备的音频输出信号的生成,并且所述播放包括渲染所选择的数字格式化的 当选择第一个数字格式的文件时,彩色视频显示设备的文件。

    System and method of managing clock speed in an electronic device
    7.
    发明申请
    System and method of managing clock speed in an electronic device 有权
    在电子设备中管理时钟速度的系统和方法

    公开(公告)号:US20070006006A1

    公开(公告)日:2007-01-04

    申请号:US11170475

    申请日:2005-06-29

    Applicant: Matthew Henson

    Inventor: Matthew Henson

    CPC classification number: G06F1/3203 G06F1/324 Y02D10/126

    Abstract: A method of controlling a clock frequency is disclosed and includes monitoring a plurality of master devices that are coupled to a bus within a system. The method also includes receiving an input from at least one of the plurality of master devices. The input can be a request an increase to the clock frequency of the bus. Further, the method includes selectively increasing the clock frequency of the bus in response to the request.

    Abstract translation: 公开了一种控制时钟频率的方法,并且包括监视耦合到系统内的总线的多个主设备。 该方法还包括接收来自多个主设备中的至少一个的输入。 输入可以是增加总线时钟频率的请求。 此外,该方法包括响应于该请求选择性地增加总线的时钟频率。

    System and method of routing audio signals to multiple speakers
    8.
    发明申请
    System and method of routing audio signals to multiple speakers 有权
    将音频信号路由到多个扬声器的系统和方法

    公开(公告)号:US20070005161A1

    公开(公告)日:2007-01-04

    申请号:US11170487

    申请日:2005-06-29

    CPC classification number: H04R5/02

    Abstract: A method and system for utilizing multiple speakers in a portable electronic device is disclosed. The method includes receiving an input at a user interface of a portable electronic device, switching a first and second speaker in a stereo configuration to a mono configuration by routing a first digital to analog converter (DAC) output to both the first and second speaker in response to the input and coupling a third speaker to a second DAC to receive a first audio signal that is responsive to the input. The system includes a first digital to analog converter coupled to a first speaker, a second DAC coupled to a second speaker, and a third speaker. The system further includes switching logic coupled to the first and second DACs. The switching logic is responsive to an input signal provided by a user interface of a portable device. In response to an input signal from the user interface, the switching logic couples the first and second speakers to the first DAC and the third speaker to the second DAC.

    Abstract translation: 公开了一种在便携式电子设备中使用多个扬声器的方法和系统。 该方法包括在便携式电子设备的用户接口处接收输入,通过将第一和第二扬声器输出到第一和第二扬声器的方式将第一和第二扬声器以立体声配置切换为单声道配置, 响应于所述输入并将第三扬声器耦合到第二DAC以接收响应于所述输入的第一音频信号。 该系统包括耦合到第一扬声器的第一数模转换器,耦合到第二扬声器的第二DAC和第三扬声器。 该系统还包括耦合到第一和第二DAC的开关逻辑。 开关逻辑响应由便携式设备的用户界面提供的输入信号。 响应于来自用户接口的输入信号,开关逻辑将第一和第二扬声器耦合到第一DAC和第三扬声器到第二DAC。

    Method and system of memory management

    公开(公告)号:US20060248265A1

    公开(公告)日:2006-11-02

    申请号:US11118593

    申请日:2005-04-29

    CPC classification number: G06F12/10 G06F12/1045 G06F2212/656 Y02D10/13

    Abstract: The disclosure is directed to a computational system including a processor and a memory management unit accessible to the processor. The processor is configured to access a common virtual memory space to perform a first task of a plurality of tasks and is configured to access the common virtual memory space to perform a second task of the plurality of tasks. The common virtual memory space references a first set of instructions associated with the first task and references a second set of instructions associated with the second task. The memory management unit is configured to determine a physical memory location of at least one of the first and second sets of instructions when the associated first or second task is to be performed by the processor.

    Pop and click reduction using DAC power up and power down processing
    10.
    发明申请
    Pop and click reduction using DAC power up and power down processing 有权
    使用DAC上电和断电处理进行流行和点击减少

    公开(公告)号:US20050025322A1

    公开(公告)日:2005-02-03

    申请号:US10628827

    申请日:2003-07-28

    CPC classification number: H03F1/305 H03F2200/331 H03G3/348

    Abstract: An audio amplifier generates an output to a load, in which a digital-to-analog converter drives the amplifier during powering up and powering down the amplifier. The digital-to-analog converter controls the amplifier to ramp the voltage at the output at a predetermined rate to reduce rapid voltage changes from being sent to the load during the powering up or powering down sequence.

    Abstract translation: 音频放大器产生一个负载的输出,其中数模转换器在上电和上电放大器期间驱动放大器。 数模转换器控制放大器以预定速率斜坡输出输出端的电压,以减少快速电压变化,从而在上电或掉电过程中发送到负载。

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