公开(公告)号：US09628855B2

公开(公告)日：2017-04-18

申请号：US14620973

申请日：2015-02-12

Applicant: Silicon Image, Inc.

Inventor： Hoon Choi ,  Wooseung Yang ,  Ju Hwan Yi

IPC: H04L29/06 ,  H04N21/4408 ,  H04N21/4363 ,  H04N21/438

CPC classification number: H04N21/4408 ,  H04L63/0428 ,  H04L63/205 ,  H04N21/43635 ,  H04N21/438

Abstract: In one aspect, a video processing device includes a processor and a transmitter, for example implemented as separate integrated circuits on a printed circuit board. Pins on the processor are coupled to pins on the transmitter via a data channel, for example conductive leads on the printed circuit board. Video data is transmitted from the processor to the transmitter via this data channel, which is high speed enough to accommodate video data. The transmitter also includes an encryption engine used to encrypt the video data. Encryption control data, which determines the encryption to be applied, is transmitted from the processor to the transmitter over the same data channel as the video data. This is more secure than transmitting the encryption control data over a slower separate data channel, because the high speed video channel is harder to tamper with.

公开(公告)号：US20160119302A1

公开(公告)日：2016-04-28

申请号：US14279316

申请日：2014-05-16

Applicant: Silicon Image, Inc.

Inventor： Ju Hwan Yi ,  Wooseung Yang ,  Myung Je Cho ,  Hoon Choi

IPC: H04L29/06

CPC classification number: H04L63/061 ,  G09G5/006 ,  G09G2358/00 ,  G09G2370/047 ,  G09G2370/12 ,  G09G2370/20 ,  H04L9/0861 ,  H04L9/0891 ,  H04L63/0457 ,  H04L63/06 ,  H04L63/062 ,  H04L63/126 ,  H04L2209/38 ,  H04L2209/60 ,  H04N21/436 ,  H04N21/4405 ,  H04N21/4623

Abstract: A system for receiving and decrypting media content encrypted according to the HDCP protocol is described herein. A receiving device coupled to a plurality of content channels includes an authentication engine to authenticate each content channel and to generate an initial session key associated with each authenticated content channel. The content channels can be, for example, an HDMI channel or an MHL3 channel. A session key indicator indicating a session key used to encrypt media content is received, and an updated session key is generated. The receiving device also includes a stream cipher engine configured to decrypt received encrypted media content using the updated session key. Decrypted media content can then be displayed, for instance on a display of the receiving device.

Abstract translation: 本文描述了用于接收和解密根据HDCP协议加密的媒体内容的系统。 耦合到多个内容信道的接收设备包括认证引擎来认证每个内容信道并生成与每个被认证的内容信道相关联的初始会话密钥。 内容通道可以是例如HDMI通道或MHL3通道。 接收到指示用于加密媒体内容的会话密钥的会话密钥指示符，并且生成更新的会话密钥。 接收设备还包括配置为使用更新的会话密钥来解密所接收的加密媒体内容的流密码引擎。 然后可以显示解密的媒体内容，例如在接收设备的显示器上显示。

公开(公告)号：US20150295903A1

公开(公告)日：2015-10-15

申请号：US14610855

申请日：2015-01-30

Applicant: Silicon Image, Inc.

Inventor： Ju Hwan Yi ,  Wooseung Yang ,  Hoon Choi

IPC: H04L29/06 ,  H04L9/32 ,  H04L9/08

CPC classification number: H04L63/0457 ,  H04L9/0819 ,  H04L9/0822 ,  H04L9/3263 ,  H04L63/08

Abstract: Embodiments relate to routing encrypted data from a source to a sink via a router without decrypting the data in the router. The source authenticates with the router, the result of which produces a session key and a pseudo-random number. The router authenticates with the sink using the same session key and pseudo-random number. The router passes encrypted data received from the source to the sink without decryption and re-encryption.

Abstract translation: 实施例涉及经由路由器将加密数据从源路由到宿，而不对路由器中的数据进行解密。 源路由器进行认证，其结果产生会话密钥和伪随机数。 路由器使用相同的会话密钥和伪随机数使用接收器进行身份验证。 路由器将从源接收的加密数据传递到宿，而不进行解密和重新加密。

公开(公告)号：US20150293879A1

公开(公告)日：2015-10-15

申请号：US14681992

申请日：2015-04-08

Applicant: Silicon Image, Inc.

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

IPC: G06F13/42 ,  G06F13/40

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.

Abstract translation: 实施例涉及通过多媒体链路的物理信道的符合第一标准（例如，通用串行总线（USB）标准）的数据的半双工双向传输，用于传输符合标准的音频/视频（“A / V”）数据 使用时分复用（TDM）在源设备和宿设备之间的第二标准（例如，移动高清链路（MHL）标准）。 源设备首次发送包括A / V数据的数据单元和符合第一标准的转发数据，而宿设备在来自源设备的传输之间的第二次发送包括与第一标准兼容的后向数据的数据单元。 第一次不与第二次重叠。 可以将同步信号添加到第一和第二数据单元以对准嵌入在第一和第二数据单元中的字符符号。

公开(公告)号：US20150256863A1

公开(公告)日：2015-09-10

申请号：US14470620

申请日：2014-08-27

Applicant: Silicon Image, Inc.

Inventor： Hoon Choi ,  Ju Hwan Yi

IPC: H04N21/2662 ,  H04N21/2343 ,  H04N19/00 ,  H04L29/06

CPC classification number: H04N19/463 ,  H04L29/06027 ,  H04L29/0604 ,  H04L65/4084 ,  H04L65/607 ,  H04L69/04 ,  H04N7/025 ,  H04N7/083 ,  H04N7/084 ,  H04N7/0855 ,  H04N7/087 ,  H04N7/0881 ,  H04N19/00 ,  H04N19/85 ,  H04N19/93 ,  H04N21/234363 ,  H04N21/2662 ,  H04N21/43635 ,  H04N21/440263

Abstract: A transmitting device for communicating via a multimedia communication link includes a compression circuitry that receives blanking period data corresponding to blanking states of video blanking periods. The compression circuitry compresses the blanking period data into compressed blanking period data. The transmitting device also includes an interface that transmits signals corresponding to the compressed blanking period data via one or more multimedia channels of the multimedia communication link.

Abstract translation: 用于经由多媒体通信链路进行通信的发送装置包括压缩电路，该压缩电路接收对应于视频消隐期间的消隐状态的消隐期数据。 压缩电路将消隐期数据压缩成压缩消隐期数据。 发送装置还包括经由多媒体通信链路的一个或多个多媒体信道发送对应于压缩消隐期数据的信号的接口。

公开(公告)号：US08832338B2

公开(公告)日：2014-09-09

申请号：US13736765

申请日：2013-01-08

Applicant: Silicon Image, Inc.

Inventor： Ju Hwan Yi ,  Young Il Kim ,  Young Don Bae

IPC: G06F3/00 ,  G06F13/00

CPC classification number: H04N21/4305

Abstract: A mechanism for facilitating dynamic timestamp-less clock generation for transmitting media streams over shared channels is described. In one embodiment, a method includes periodically counting and producing, at a first media device, a number of audio/video (“A/V”) samples, generating a pace clock based on the number of A/V samples, generating a target clock based on the pace clock, and transmitting an A/V media stream based on a frequency difference between a pace frequency relating to the pace clock and a target frequency relating to the target clock.

Abstract translation: 描述了一种用于促进通过共享信道传输媒体流的动态无时钟时钟生成的机制。 在一个实施例中，一种方法包括在第一媒体设备周期性地计数和产生多个音频/视频（“A / V”）采样，基于A / V采样的数量产生步速时钟，产生目标 基于步速时钟的时钟，并且基于与起搏时钟相关的起搏频率和与目标时钟相关的目标频率之间的频率差发送A / V媒体流。