公开(公告)号：US20140059267A1

公开(公告)日：2014-02-27

申请号：US14038717

申请日：2013-09-26

Applicant: VIA TECHNOLOGIES, INC.

Inventor： JIIN LAI ,  Chin-Sung Hsu ,  Terrance Shiyang Shih ,  Jinkuan Tang ,  Buheng Xu ,  Hui Jiang

IPC: G06F13/40

CPC classification number: G06F13/4059

Abstract: A universal serial bus (USB) transaction translator is provided along with 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. At least two buffers are configured to store data. A controller stores the data in the buffers alternately. A start-of-frame (SOF) counter is used to count the SOF packets, with the counting value of the SOF counter being compared to a predefined value. Specifically, the controller resets a SOF timer for sending the SOF packet when the counting value achieves or exceeds 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.

Abstract translation: 提供通用串行总线（USB）事务转换器以及微帧同步方法。 设备接口经由设备总线耦合到设备，并且主机接口经由主机总线耦合到主机。 至少两个缓冲区被配置为存储数据。 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数据包进行计数，将SOF计数器的计数值与预定义的值进行比较。 具体地说，当计数值达到或超过预定值时，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）同时被发送。 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。

公开(公告)号：US09009380B2

公开(公告)日：2015-04-14

申请号：US14038717

申请日：2013-09-26

Applicant: VIA Technologies, Inc.

Inventor： Jiin Lai ,  Chin-Sung Hsu ,  Terrance Shiyang Shih ,  Jinkuan Tang ,  Buheng Xu ,  Hui Jiang

IPC: G06F13/36 ,  G06F13/40

CPC classification number: G06F13/4059

Abstract: A universal serial bus (USB) transaction translator is provided along with 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. At least two buffers are configured to store data. A controller stores the data in the buffers alternately. A start-of-frame (SOF) counter is used to count the SOF packets, with the counting value of the SOF counter being compared to a predefined value. Specifically, the controller resets a SOF timer for sending the SOF packet when the counting value achieves or exceeds 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.

Abstract translation: 提供通用串行总线（USB）事务转换器以及微帧同步方法。 设备接口经由设备总线耦合到设备，并且主机接口经由主机总线耦合到主机。 至少两个缓冲区被配置为存储数据。 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数据包进行计数，将SOF计数器的计数值与预定义的值进行比较。 具体地说，当计数值达到或超过预定值时，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）同时被发送。 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。

公开(公告)号：US20140298053A1

公开(公告)日：2014-10-02

申请号：US14138151

申请日：2013-12-23

Applicant: VIA Technologies, Inc.

Inventor： Yi-Te Chen ,  Terrance Shiyang Shih ,  Hsiao-Chyi Lin

IPC: G06F1/32

CPC classification number: G06F1/325 ,  G06F1/3253 ,  G06F1/3296 ,  Y02D10/151 ,  Y02D10/172

Abstract: A universal serial bus and a control method thereof are provided. Different voltages are respectively provided to circuit groups when a universal serial bus hub is in a suspend state and a normal working state, so as to reduce leakage current.

Abstract translation: 提供通用串行总线及其控制方法。 当通用串行总线集线器处于暂停状态和正常工作状态时，分别向电路组提供不同的电压，以减少漏电流。

公开(公告)号：US09772653B2

公开(公告)日：2017-09-26

申请号：US14692155

申请日：2015-04-21

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Chin-Sung Hsu ,  Terrance Shiyang Shih ,  Li-Feng Pan

IPC: G06F13/40 ,  G06F1/16 ,  G06F1/26 ,  G06F1/00

CPC classification number: G06F1/1632 ,  G06F1/266 ,  G06F13/4081

Abstract: A Universal Serial Bus (USB) dock is provided. The USB dock includes: a plurality of downstream ports; and a upstream port, connecting the USB dock to a portable device, wherein the upstream port includes an On-the-go (OTG) ID pin and a differential pair; and a microcontroller, configured to detect operating states of the portable device, wherein when it is detected that the portable device is in a USB OTG host mode and has entered a suspend state, the microcontroller controls the portable device to switch from the USB OTG host mode to a USB device mode by toggling a state of the USB OTG ID pin, thereby charging the portable device via the upstream port.

公开(公告)号：US10216253B2

公开(公告)日：2019-02-26

申请号：US14138151

申请日：2013-12-23

Applicant: VIA Technologies, Inc.

Inventor： Yi-Te Chen ,  Terrance Shiyang Shih ,  Hsiao-Chyi Lin

IPC: G06F1/32

Abstract: A universal serial bus and a control method thereof are provided. Different voltages are respectively provided to circuit groups when a universal serial bus hub is in a suspend state and a normal working state, so as to reduce leakage current.

公开(公告)号：US20180210744A1

公开(公告)日：2018-07-26

申请号：US15876205

申请日：2018-01-22

Applicant: VIA Technologies, Inc.

Inventor： Terrance Shiyang Shih ,  Chin-Sung Hsu

IPC: G06F9/455 ,  G06F12/10 ,  G06F8/65

CPC classification number: G06F9/45504 ,  G06F8/65 ,  G06F8/654 ,  G06F12/10 ,  G06F2212/1041 ,  G06F2212/151 ,  G06F2212/202

Abstract: An electronic apparatus and an operation method thereof are provided. The electronic apparatus includes a nonvolatile memory, a first integrated circuit and a second integrated circuit. The nonvolatile memory stores the first firmware code of the first integrated circuit and the second firmware code of the second integrated circuit. The first integrated circuit is coupled to a memory access interface of the nonvolatile memory to read the first firmware code and the second firmware code. The first integrated circuit has an emulation memory access interface to emulate an emulation memory. The second integrated circuit is coupled to the emulation memory access interface of the first integrated circuit. The second integrated circuit reads the second firmware code from the first integrated circuit via the emulation memory access interface.