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    • 13. 发明申请
    • METHOD FOR SYNCHRONIZATION OF PERIPHERALS WITH A CENTRAL PROCESSING UNIT IN AN EMBEDDED SYSTEM
    • 嵌入式系统中央处理单元同步外设的方法
    • US20100049888A1
    • 2010-02-25
    • US12194060
    • 2008-08-19
    • XIAOQIAN ZHANGZhiyong GuanQi Li
    • XIAOQIAN ZHANGZhiyong GuanQi Li
    • G06F1/12
    • G06F1/12
    • A method and apparatus for synchronizing I/O peripherals with a CPU in an embedded system is discussed. The method involves receiving an address from the CPU in response to a read and/or write access, translating the address received from the CPU to identify a I/O peripheral to be accessed, disabling the operation of the CPU and synchronizing a memory from the CPU clock domain to the clock domain of the identified I/O peripheral. Upon completion of the read/write access, the identified I/O peripheral sends an acknowledgment, the memory is then synchronized from the clock domain of the I/O peripheral to the CPU clock domain and the operation of the CPU is then enabled.In another embodiment, if the acknowledgement from the identified I/O peripheral is not received within a predefined time duration, reserved data is sent to the CPU and the operation/access can be restarted.
    • 讨论了嵌入式系统中的I / O外设与CPU同步的方法和装置。 该方法包括响应于读和/或写访问从CPU接收地址,翻译从CPU接收的地址以识别要访问的I / O外设,禁止CPU的操作并使来自 CPU时钟域到所识别的I / O外设的时钟域。 在完成读/写访问后,所识别的I / O外设发送确认,然后将存储器从I / O外设的时钟域同步到CPU时钟域,然后启用CPU的操作。 在另一个实施例中,如果在预定义的持续时间内未接收到来自所识别的I / O外围设备的确认,则保留的数据被发送到CPU,并且可以重新启动操作/访问。
    • 19. 发明授权
    • Configurable three-dimensional sound system
    • 可配置三维音响系统
    • US09131305B2
    • 2015-09-08
    • US13743551
    • 2013-01-17
    • Qi LiYin DingManli Zhu
    • Qi LiYin DingManli Zhu
    • H04R5/00H04R5/027H04S7/00H04R3/00H04S3/00
    • H04R5/027H04R3/005H04R2201/401H04S3/008H04S7/30H04S2400/01H04S2400/15H04S2420/01
    • A method and a system for simultaneously generating configurable three-dimensional (3D) sounds are provided. A 3D sound processing application (3DSPA) in operative communication with a microphone array system (MAS) is provided on a computing device. The MAS forms acoustic beam patterns and records sound tracks from the acoustic beam patterns. The 3DSPA generates a configurable sound field on a graphical user interface using recorded or pre-recorded sound tracks. The 3DSPA acquires user selections of configurable parameters associated with sound sources from the configurable sound field. The 3DSPA dynamically processes the sound tracks using the user selections to generate a configurable 3D binaural sound, surround sound, and/or stereo sound. The 3DSPA measures head related transfer functions (HRTFs) in communication with a simulator apparatus that simulates a human's upper body. The 3DSPA generates the binaural sound by processing the sound tracks with the HRTFs based on the user selections.
    • 提供了用于同时产生可配置三维(3D)声音的方法和系统。 在计算设备上提供与麦克风阵列系统(MAS)操作通信的3D声音处理应用(3DSPA)。 MAS形成声束图案并从声波束图案记录声音轨迹。 3DSPA使用录制或预录音轨在图形用户界面上生成可配置的声场。 3DSPA从可配置声场获取与声源相关联的可配置参数的用户选择。 3DSPA使用用户选择来动态处理声音轨道,以生成可配置的3D双耳声,环绕声和/或立体声。 3DSPA测量与模拟人体上半身的模拟器装置通信的头部相关传递函数(HRTF)。 3DSPA通过使用基于用户选择的HRTF处理音轨来产生双耳声音。