公开(公告)号：US20160147692A1

公开(公告)日：2016-05-26

申请号：US15010166

申请日：2016-01-29

Applicant: Lattice Semiconductor Corporation

Inventor： William C. Altmann ,  Gyudong Kim

IPC: G06F13/40 ,  G06F13/36

CPC classification number: G06F13/4022 ,  G06F13/36 ,  G06F13/4068 ,  H04B11/00 ,  H04L5/00

Abstract: A cable with circuitry that enables the cable to communicate data in one of at least two different signal modes of operation is presented. In a first signal mode, the cable enables data communication between the circuitry and either a source device or a sink device. The first signal mode can be used either to communicate properties of the cable itself or of a signal passing through the cable to either the source device or the sink device. In a second signal mode, the cable enables data communication between the source device and the sink device. The second signal mode can be used to communicate data in accordance with a predetermined protocol.

Abstract translation: 提供一种具有电路的电缆，其使电缆能够以至少两种不同信号操作模式之一传送数据。 在第一信号模式中，电缆能够实现电路与源设备或信宿设备之间的数据通信。 第一信号模式可用于将电缆本身的特性或通过电缆的信号传送到源设备或信宿设备。 在第二种信号模式下，电缆可以实现源设备和宿设备之间的数据通信。 第二信号模式可以用于根据预定协议传送数据。

公开(公告)号：US10043480B2

公开(公告)日：2018-08-07

申请号：US14474005

申请日：2014-08-29

Applicant: Lattice Semiconductor Corporation

Inventor： Jiong Huang ,  Lei Ming ,  Gyudong Kim ,  Young Il Kim

IPC: H04J3/00 ,  G09G5/00 ,  G06F13/362 ,  G06F13/42

Abstract: A source device communicates multimedia data to a sink device over a multimedia channel of a multimedia link. The source device comprises an interface to a full duplex control channel of the multimedia link. The source device also comprises first arbitration logic to control transfer of control data with the sink device via the full duplex control channel. The first arbitration logic ignores requests to receive inbound control data from the sink device while the source device is transmitting outbound control data to the sink device. The sink device, on the other hand, comprises second arbitration logic to control transfer of control data with the source device via the full duplex control channel. The second arbitration logic stops transmitting outbound control data via the full duplex control channel responsive to receiving a request to receive incoming control data from the source device.

公开(公告)号：US09366712B2

公开(公告)日：2016-06-14

申请号：US14559523

申请日：2014-12-03

Applicant: Lattice Semiconductor Corporation

Inventor： Jason Wong ,  Gyudong Kim

IPC: G06F11/30 ,  G01R31/02 ,  G06F11/34

CPC classification number: G01R31/021 ,  G06F11/3055 ,  G06F11/3485 ,  G06F11/349

Abstract: Embodiments of the invention are generally directed to determination of physical connectivity status of devices based on electrical measurement. An embodiment of a method includes discovering a connection of a first device with a second device, and performing an electrical measurement of the second device by the first device via the connection between the first device and the second device, where performing the electrical measurement includes sensing by the first device of an element of the second device. The method further includes, if the sensing by the first device fails to detect the element of the second device and a predetermined condition for the electrical measurement is enabled, then determining by the first device that the connection with the second device has been lost.

Abstract translation: 本发明的实施例通常涉及基于电测量来确定设备的物理连接状态。 一种方法的实施例包括发现第一设备与第二设备的连接，以及由第一设备经由第一设备和第二设备之间的连接执行第二设备的电测量，其中执行电测量包括感测 通过第二装置的元件的第一装置。 该方法还包括：如果第一设备的感测不能检测到第二设备的元件，并且启用用于电测量的预定条件，则由第一设备确定与第二设备的连接已经丢失。

公开(公告)号：US09852103B2

公开(公告)日：2017-12-26

申请号：US14681992

申请日：2015-04-08

Applicant: Lattice Semiconductor Corporation

Inventor： Ju Hwan Yi ,  Young Il Kim ,  Gijung Ahn ,  Min-Kyu Kim ,  Daeyun Shim ,  Gyudong Kim ,  Hoon Choi

IPC: G06F13/14 ,  G06F13/42 ,  G06F13/40 ,  G09G5/00 ,  G06F3/14

CPC classification number: G06F13/4278 ,  G06F3/14 ,  G06F13/4068 ,  G09G5/006 ,  G09G2370/04 ,  G09G2370/047 ,  G09G2370/10

Abstract: Embodiments relate to half-duplex bidirectional transmission of data compliant with a first standard (e.g., Universal Serial Bus (USB) standard) over a physical channel of a multimedia link for transmitting audio/video (“A/V”) data compliant with a second standard (e.g., Mobile High-Definition Link (MHL) standard) between a source device and a sink device using time division multiplexing (TDM). The source device sends units of data including A/V data and forward data compliant with the first standard at first times whereas the sink device sends units of data including backward data compliant with the first standard at second times between transmissions from the source device. The first times do not overlap with the second times. Synchronization signals may be added to the first and second units of data to align character symbols embedded in the first and second units of data.

公开(公告)号：US09703729B2

公开(公告)日：2017-07-11

申请号：US14677806

申请日：2015-04-02

Applicant: Lattice Semiconductor Corporation

Inventor： Shrikant Ranade ,  Gyudong Kim ,  Chandlee B Harrell

IPC: G06F13/38 ,  G06F13/10 ,  G06F11/30 ,  G06F13/00

CPC classification number: G06F13/102 ,  G06F11/3027 ,  G06F11/3051

Abstract: Embodiments of the present disclosure are related to identifying the orientation of a multimedia link connected between a source device and a sink device. A sink device includes a plurality of pins that are configured to interface with a plurality of pins of the multimedia link. The sink device identifies based on the values of one or more pins of the plurality of pins of the sink device whether the multimedia link is connected to the sink device. Further, the sink device determines an orientation of the multimedia link connected to the sink device. The multimedia link can be in one of two orientations, straight or flipped. The sink device may communicate the orientation of the multimedia link to the source device. The source device may perform lane mapping based on whether the multimedia link is in the straight or flipped orientation.

公开(公告)号：US09553634B2

公开(公告)日：2017-01-24

申请号：US14563797

申请日：2014-12-08

Applicant: Lattice Semiconductor Corporation

Inventor： Joohong Choi ,  Kihong Kim ,  Gyudong Kim ,  Chandlee B. Harrell

IPC: H04B3/20

CPC classification number: H04B3/20

Abstract: A device converts between electrical duplex and optical signals. In one embodiment, such a device includes an echo cancellation circuit that reduces the echo from an incoming optical signal.

Abstract translation: 设备在电气双工和光信号之间进行转换。 在一个实施例中，这种装置包括回波消除电路，其减少来自输入光信号的回波。

公开(公告)号：US09537646B2

公开(公告)日：2017-01-03

申请号：US14470809

申请日：2014-08-27

Applicant: Lattice Semiconductor Corporation

Inventor： Jiong Huang ,  Lei Ming ,  Gyudong Kim ,  Young Il Kim

IPC: H04L5/14 ,  H04L5/16

CPC classification number: H04L5/1415 ,  H04L5/1407 ,  H04L5/1469 ,  H04L5/16

Abstract: A multimedia system for data communications. A source device communicates data over a full duplex control channel of a multimedia communication link. The source device has a first link layer that retries unsuccessful data communications over the full duplex control channel until a first maximum retry limit of the first link layer is reached. A sink device communicates data over the full duplex control channel of the multimedia communication link. The sink device has a second link layer that retries unsuccessful data communications over the full duplex control channel until a second maximum retry limit of the second link layer is reached, where the second maximum retry limit is different than the first maximum retry limit.

Abstract translation: 一种用于数据通信的多媒体系统。 源设备通过多媒体通信链路的全双工控制信道传送数据。 源设备具有第一链路层，其在全双工控制信道上重试不成功的数据通信，直到达到第一链路层的第一最大重试限制。 宿设备通过多媒体通信链路的全双工控制信道传送数据。 宿设备具有第二链路层，其在全双工控制信道上重试不成功的数据通信，直到达到第二链路层的第二最大重试限制，其中第二最大重试限制不同于第一最大重试限制。

公开(公告)号：US09274992B2

公开(公告)日：2016-03-01

申请号：US14322753

申请日：2014-07-02

Applicant: Lattice Semiconductor Corporation

Inventor： William C. Altmann ,  Gyudong Kim

IPC: G06F3/00 ,  G06F13/40 ,  H04B11/00 ,  H04L5/00

CPC classification number: G06F13/4022 ,  G06F13/36 ,  G06F13/4068 ,  H04B11/00 ,  H04L5/00

Abstract: A cable with circuitry that enables the cable to communicate data in one of at least two different signal modes of operation is presented. In a first signal mode, the cable enables data communication between the circuitry and either a source device or a sink device. The first signal mode can be used either to communicate properties of the cable itself or of a signal passing through the cable to either the source device or the sink device. In a second signal mode, the cable enables data communication between the source device and the sink device. The second signal mode can be used to communicate data in accordance with a predetermined protocol.

公开(公告)号：US09769417B1

公开(公告)日：2017-09-19

申请号：US14928921

申请日：2015-10-30

Applicant: Lattice Semiconductor Corporation

Inventor： Sergey Yarygin ,  Laurence A Thompson ,  Chandlee B Harrell ,  Gyudong Kim

IPC: H04N7/00 ,  H04N11/00 ,  H04N7/088 ,  G11B27/036 ,  H04N7/01 ,  H04N7/035

CPC classification number: H04N7/0884 ,  G09G5/006 ,  G09G5/18 ,  G09G2320/0271 ,  G09G2320/0673 ,  G09G2370/04 ,  G09G2370/045 ,  G09G2370/12 ,  G11B27/036 ,  G11B27/3081 ,  H04N7/007 ,  H04N7/0125 ,  H04N7/035 ,  H04N7/08 ,  H04N7/083 ,  H04N7/088 ,  H04N7/0881 ,  H04N21/236 ,  H04N21/434 ,  H04N21/43635

Abstract: Aspects relate to transmission of metadata from a source to a sink device, and optionally through one or more intermediaries. A source device encodes metadata into what would have been a blanking area of a field to be transmitted, according to a current video format. The source device encodes a timing for an active video data signal that is modified from a timing that would be used only for transmission of video data at a current resolution. A separate indicator from the source, or a negotiation between source and sink allows the sink to determine what part of the data indicated as being active video data is metadata, and to use that metadata for controlling aspects of the video display, and to use other parts of the received video data as video data for display. A sink can signal supported capabilities to a source.

公开(公告)号：US09490962B2

公开(公告)日：2016-11-08

申请号：US14470804

申请日：2014-08-27

Applicant: Lattice Semiconductor Corporation

Inventor： Jiong Huang ,  Lei Ming ,  Gyudong Kim ,  Young Il Kim

IPC: H04L5/14 ,  H04J3/16 ,  H04J3/06 ,  G06F13/40 ,  H04L5/16

CPC classification number: H04L5/1415 ,  G06F13/40 ,  H04J3/0602 ,  H04J3/0617 ,  H04J3/16 ,  H04L5/1407 ,  H04L5/1469 ,  H04L5/16

Abstract: A multimedia system for data communications. A source device communicates over a full duplex control channel of a multimedia communication link using time domain multiplexed (TDM) frames having n time slots per frame. The source device allocates a first time slot position to a virtual channel for data transmission by the source device over the full duplex control channel. A sink device communicates over the full duplex control channel of the multimedia communication link. The sink device allocates a second time slot position to the virtual channel for data transmission by the sink device over the full duplex control channel. A timing of the second time slot position is offset from a timing of the first time slot position by substantially n/2 time slots.

Abstract translation: 一种用于数据通信的多媒体系统。 源设备使用具有每帧n个时隙的时域复用（TDM）帧在多媒体通信链路的全双工控制信道上进行通信。 源设备将虚拟信道的第一时隙位置分配给源设备通过全双工控制信道进行数据传输。 宿设备通过多媒体通信链路的全双工控制信道进行通信。 宿设备将虚拟信道的第二时隙位置分配给宿设备通过全双工控制信道进行数据传输。 第二时隙位置的定时偏离第一时隙位置的定时大致n / 2个时隙。