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    • 2. 发明申请
    • Rate Adaptation for Support of Full-Speed USB Transactions Over a High-Speed USB Interface
    • 通过高速USB接口支持全速USB传输的速率适配
    • US20090063717A1
    • 2009-03-05
    • US11846066
    • 2007-08-28
    • Mark R. BohmMorgan H. MonksHenry Wurzburg
    • Mark R. BohmMorgan H. MonksHenry Wurzburg
    • G06F3/00
    • G06F13/4045G06F2213/0042
    • A USB communications interface (USBCI) may enable communication between a high-speed USB device, e.g. a High-Speed-Inter-Chip (HSIC) USB device, and a non high-speed USB host, e.g. a full-speed USB host. The USBCI may receive first data from the USB host via a non high-speed transaction, and buffer the first data. The USBCI may also initiate a high-speed transaction corresponding to the non high-speed transaction to the USB device, and transmit at least a portion of the buffered first data to the USB device via the high-speed transaction. The USBCI may subsequently receive second data from the USB device via the high-speed transaction, and buffer the second data. The USBCI may also transmit at least a portion of the buffered second data to the USB host via the non high-speed transaction, and complete the non high-speed transaction upon the high-speed transaction completing.
    • USB通信接口(USBCI)可以实现高速USB设备之间的通信,例如, 高速片上(HSIC)USB设备和非高速USB主机,例如, 全速USB主机。 USBCI可以通过非高速事务从USB主机接收第一个数据,并缓冲第一个数据。 USBCI还可以向USB设备发起与非高速交易相对应的高速交易,并且经由高速交易将缓冲的第一数据的至少一部分发送到USB设备。 USBCI可以随后经由高速事务从USB设备接收第二数据,并缓冲第二数据。 USBCI还可以经由非高速事务将缓冲的第二数据的至少一部分传送到USB主机,并且在高速交易完成时完成非高速交易。
    • 3. 发明授权
    • Method for automatically switching USB peripherals between USB hosts
    • 在USB主机之间自动切换USB外设的方法
    • US07478191B2
    • 2009-01-13
    • US11457389
    • 2006-07-13
    • Henry WurzburgSteve NelsonMark Y. FuHans Magnusson
    • Henry WurzburgSteve NelsonMark Y. FuHans Magnusson
    • G06F13/00
    • G06F13/4022
    • A system for automatically switching peripheral connectivity between two host devices based on respective connectivity of the hosts. The method may be used where peripherals are usually attached to one host and are automatically switched to a second host when the second host is attached to the system. A USB switching hub may be operable to automatically switch connectivity of the peripheral device(s) from the first host device to the second host device when the second host device is connected to the USB device. This automates the process for the end user when normally all peripherals are attached to one host, and some or all peripherals are shared with a second host when the second host is attached.
    • 一种用于基于主机的相应连接自动切换两台主机设备之间的外围连接的系统。 当外围设备通常连接到一个主机时,该方法可以被使用,并且当第二主机连接到系统时,该方法被自动切换到第二主机。 当第二主机设备连接到USB设备时,USB交换集线器可操作以自动地将外围设备的连接从第一主机设备切换到第二主机设备。 当通常所有外围设备连接到一个主机时,这将自动完成最终用户的过程,并且当连接第二个主机时,一些或所有外围设备与第二个主机共享。
    • 10. 发明授权
    • Electrically disconnecting a peripheral device
    • 电气断开外围设备
    • US07325733B2
    • 2008-02-05
    • US11530977
    • 2006-09-12
    • Henry WurzburgTetsuo YamamotoMark Colman Atchison
    • Henry WurzburgTetsuo YamamotoMark Colman Atchison
    • G06K7/06
    • G06F1/3215G06F1/266G06F1/325
    • If a USB device is turned off or is not active, the device may be electrically disconnected from a USB host controller. The device may be electrically disconnected through a physical interface on the device. In some embodiments, if the device becomes active during a wait period (e.g., 2-3 seconds) prior to electrically disconnecting the device, the device may not be electrically disconnected. In some embodiments, when the device is electrically disconnected from the USB host controller and no system activity of a bus mastering peripheral is occurring, the CPU may enter a low power state if other conditions are met. In some embodiments, if the USB device becomes active after electrically disconnecting, the electrical disconnection may be discontinued.
    • 如果USB设备已关闭或未激活,则设备可能与USB主机控制器电气断开。 该设备可以通过设备上的物理接口电断开。 在一些实施例中,如果在电气断开设备之前的设备在等待期间(例如2-3秒)期间变得有效,则该设备可能不会被电断开。 在一些实施例中,当设备与USB主机控制器电气断开连接并且没有发生总线母盘制作外设的系统活动时,如果满足其他条件,则CPU可以进入低功率状态。 在一些实施例中,如果在电断开之后USB设备变为有效,则可能停止电断开。