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1. 发明申请

US20120144086A1 USB TRANSACTION TRANSLATOR AND A METHOD THEREOF 有权
标题翻译： USB交换转换器及其方法
公开(公告)号：US20120144086A1
公开(公告)日：2012-06-07
申请号：US13089834
申请日：2011-04-19
申请人： JIIN LAI , CHIN-SUNG HSU , TERRANCE SHIH , JINKUAN TANG , BUHENG XU , HUI JIANG
发明人： JIIN LAI , CHIN-SUNG HSU , TERRANCE SHIH , JINKUAN TANG , BUHENG XU , HUI JIANG
IPC分类号： G06F13/20
CPC分类号： G06F13/4059 , G06F13/4291
摘要： The present invention is directed to a universal serial bus (USB) transaction translator and a micro-frame synchronization method. A device interface is coupled to a device via a device bus, and a host interface is coupled to a host via a host bus, wherein the host USB version is higher than the device USB version. At least two buffers configured to store data are disposed between the device interface and the host interface. A controller stores the data in the buffers alternately. A start-of-frame (SOF) counter is used to count the SOF packets, wherein the counting value of the SOF counter is compared to a predefined value. Specifically, the controller resets a SOF timer for sending the SOF packet when the counting value achieves the predefined value or is greater than the predefined value, such that the SOF packet and an isochronous timestamp packet (ITP) from the host are sent at the same time. Further, the controller delays the sending of the SOF packet for a period of time according to the ITP from the host. In another embodiment, the sending period of SOF packets may be dynamically adjusted in isochronous transfer.
摘要翻译：本发明涉及通用串行总线（USB）事务转换器和微帧同步方法。设备接口经由设备总线耦合到设备，并且主机接口通过主机总线耦合到主机，其中主机USB版本高于设备USB版本。配置为存储数据的至少两个缓冲器被布置在设备接口和主机接口之间。控制器交替地将数据存储在缓冲器中。使用起始帧（SOF）计数器对SOF分组进行计数，其中将SOF计数器的计数值与预定义的值进行比较。具体地，当计数值达到预定义值或大于预定值时，控制器复位用于发送SOF分组的SOF定时器，使得来自主机的SOF分组和等时时间戳分组（ITP）以相同的方式发送时间。此外，控制器根据来自主机的ITP延迟SOF分组的发送一段时间。在另一个实施例中，SOF分组的发送周期可以在等时传输中动态调整。

2. 发明申请

US20120084485A1 USB TRANSACTION TRANSLATOR AND AN ISOCHRONOUS-IN TRANSACTION METHOD 有权
标题翻译： USB交易转换器和异步交易方法
公开(公告)号：US20120084485A1
公开(公告)日：2012-04-05
申请号：US12959261
申请日：2010-12-02
申请人： JINKUAN TANG , JIIN LAI , BUHENG XU , HUI JIANG
发明人： JINKUAN TANG , JIIN LAI , BUHENG XU , HUI JIANG
IPC分类号： G06F13/20
CPC分类号： G06F13/385 , G06F13/387
摘要： The present invention is directed to a universal serial bus (USB) transaction translator and an associated IN isochronous transaction method. A device interface is coupled to a device via a device bus, and a host interface is coupled to a host via a host bus, wherein the host USB version is higher than the device USB version. At least two buffers configured to store data are disposed between the device interface and the host interface. A controller stores the data in the buffers alternately. A register is used to record device bus information. Before the host sends an IN packet, the controller pre-fetches data from the device according to the device bus information and then stores the data in the buffers; the controller responds with the pre-fetched data to the host after the host sends the IN packet.
摘要翻译：本发明涉及通用串行总线（USB）事务转换器和相关的IN等时事务处理方法。设备接口经由设备总线耦合到设备，并且主机接口通过主机总线耦合到主机，其中主机USB版本高于设备USB版本。配置为存储数据的至少两个缓冲器被布置在设备接口和主机接口之间。控制器交替地将数据存储在缓冲器中。寄存器用于记录设备总线信息。在主机发送IN数据包之前，控制器根据设备总线信息从设备预取数据，然后将数据存储在缓冲区中; 在主机发送IN数据包之后，控制器会将预取的数据作为响应。

3. 发明申请

US20120084469A1 USB TRANSACTION TRANSLATOR AND A BULK TRANSACTION METHOD 有权
标题翻译： USB交易转换器和大容量交易方法
公开(公告)号：US20120084469A1
公开(公告)日：2012-04-05
申请号：US12959299
申请日：2010-12-02
申请人： JINKUAN TANG , JIIN LAI , BUHENG XU , HUI JIANG
发明人： JINKUAN TANG , JIIN LAI , BUHENG XU , HUI JIANG
IPC分类号： G06F5/14
CPC分类号： G06F13/385
摘要： The present invention is directed to a universal serial bus (USB) transaction translator and an associated IN/OUT bulk transaction method. A device interface is coupled to a device via a device bus, and a host interface is coupled to a host via a host bus, wherein the host USB version is higher than the device USB version. At least two buffers configured to store data are disposed between the device interface and the host interface. A controller stores the data in the buffers alternately. In a bulk-IN transaction, before the host sends an IN packet, the controller pre-fetches data and stores the data in the buffers until all the buffers are full or a requested data length has been achieved; the pre-fetched data are then sent to the host after the host sends the IN packet. In a bulk-OUT transaction, the controller stores the data sent from the host in the buffers, and the data are then post-written to the device.
摘要翻译：本发明涉及通用串行总线（USB）事务转换器和相关的IN / OUT批量交易方法。设备接口经由设备总线耦合到设备，并且主机接口通过主机总线耦合到主机，其中主机USB版本高于设备USB版本。配置为存储数据的至少两个缓冲器被布置在设备接口和主机接口之间。控制器交替地将数据存储在缓冲器中。在批量IN事务中，在主机发送IN数据包之前，控制器预取数据并将数据存储在缓冲器中，直到所有缓冲器已满或已达到所请求的数据长度; 在主机发送IN数据包之后，将预取的数据发送到主机。在bulk-OUT事务中，控制器将从主机发送的数据存储在缓冲区中，然后将数据写入设备。

4. 发明申请

US20120084471A1 USB TRANSACTION TRANSLATOR AND A MICRO-FRAME SYNCHRONIZATION METHOD 有权
标题翻译： USB交换转换器和微型帧同步方法
公开(公告)号：US20120084471A1
公开(公告)日：2012-04-05
申请号：US12959277
申请日：2010-12-02
申请人： JINKUAN TANG , JIIN LAI , BUHENG XU , HUI JIANG
发明人： JINKUAN TANG , JIIN LAI , BUHENG XU , HUI JIANG
IPC分类号： G06F13/00
CPC分类号： G06F13/385 , G06F13/4059
摘要： The present invention is directed to a universal serial bus (USB) transaction translator and a micro-frame synchronization method. A device interface is coupled to a device via a device bus, and a host interface is coupled to a host via a host bus, wherein the host USB version is higher than the device USB version. At least two buffers configured to store data are disposed between the device interface and the host interface. A controller stores the data in the buffers alternately. A start-of-frame (SOF) counter is used to count the SOF packets, wherein the counting value of the SOF counter is compared to a predefined value. Specifically, the controller resets a SOF timer for sending the SOF packet when the counting value achieves the predefined value or is greater than the predefined value, such that the SOF packet and an isochronous timestamp packet (ITP) from the host are sent at the same time. Further, the controller delays the sending of the SOF packet for a period of time according to the ITP from the host.
摘要翻译：本发明涉及通用串行总线（USB）事务转换器和微帧同步方法。设备接口经由设备总线耦合到设备，并且主机接口通过主机总线耦合到主机，其中主机USB版本高于设备USB版本。配置为存储数据的至少两个缓冲器被布置在设备接口和主机接口之间。控制器交替地将数据存储在缓冲器中。使用起始帧（SOF）计数器对SOF分组进行计数，其中将SOF计数器的计数值与预定义的值进行比较。具体地，当计数值达到预定义值或大于预定值时，控制器复位用于发送SOF分组的SOF定时器，使得来自主机的SOF分组和等时时间戳分组（ITP）以相同的方式发送时间。此外，控制器根据来自主机的ITP延迟SOF分组的发送一段时间。

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