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    Content playback APIS using encrypted streams
    1.
    发明授权
    Content playback APIS using encrypted streams 有权
    使用加密流播放APIS的内容

    公开(公告)号：US08532290B2

    公开(公告)日：2013-09-10

    申请号：US13041303

    申请日：2011-03-04

    Applicant: James Mitch Zollinger ,  Yung-Hsiao Lai ,  Anthony Neal Park ,  David Randall Ronca ,  Scott Gregory Kelly

    Inventor： James Mitch Zollinger ,  Yung-Hsiao Lai ,  Anthony Neal Park ,  David Randall Ronca ,  Scott Gregory Kelly

    IPC: H04L29/06

    CPC classification number: G06F21/10

    Abstract: One embodiment of the present invention sets forth a technique for decrypting digital content in a secure environment. The technique includes the steps of receiving a digital rights management (DRM) license associated with a first frame of encrypted data from a DRM server, where the DRM license includes a decryption key for decrypting the first frame of encrypted data, transmitting the DRM license to a secure content playback pipeline for storage, and transmitting the first frame of encrypted data to the secure content playback pipeline for decryption, where, in response to receiving the first frame of encrypted data, a trusted processing entity within the secure content playback pipeline decrypts the first frame of encrypted data based on the decryption key included in the DRM license to generate a first set of decrypted data and store the first set of decrypted data in a secure memory space.

    Abstract translation: 本发明的一个实施例提出了一种在安全环境中解密数字内容的技术。 该技术包括以下步骤：从DRM服务器接收与加密数据的第一帧相关联的数字版权管理（DRM）许可证，其中DRM许可证包括用于解密加密数据的第一帧的解密密钥，将DRM许可证发送到 用于存储的安全内容回放流水线，以及将加密数据的第一帧发送到用于解密的安全内容回放流水线，其中响应于接收到加密数据的第一帧，安全内容回放流水线内的可信处理实体解密 基于包括在DRM许可证中的解密密钥的加密数据的第一帧，以生成第一组解密数据，并将第一组解密数据存储在安全存储器空间中。

    Encoding video streams for adaptive video streaming
    5.
    发明授权
    Encoding video streams for adaptive video streaming 有权
    编码用于自适应视频流的视频流

    公开(公告)号：US08355433B2

    公开(公告)日：2013-01-15

    申请号：US12543328

    申请日：2009-08-18

    Applicant: Anthony Neal Park ,  Yung-Hsiao Lai ,  David Randall Ronca

    Inventor： Anthony Neal Park ,  Yung-Hsiao Lai ,  David Randall Ronca

    IPC: H04N7/12 ,  H04L12/66

    CPC classification number: H04N21/23439 ,  H04N21/23611 ,  H04N21/2362 ,  H04N21/238 ,  H04N21/2389 ,  H04N21/23895

    Abstract: One embodiment of the invention sets forth an encoding server including components configured to encode a video stream associated with a content title for adaptive streaming. The video stream is first processed by a VC1 encoder to generate an encoded video stream comprising a multiple GOPs, each GOP including a key frame and having a different playback offset. The encoded video stream is then packaged such that the GOPs are stored in data packets of the packaged encoded stream. An SHI generator generates an SHI associated with the packaged encoded stream that includes a switch point associated with each GOP. Each switch point includes the playback offset associated with the corresponding GOP and the data packet storing the key frame of the corresponding GOP. The SHI associated with multiple packaged encoded video streams associated with the same content title and encoded to different playback bit rates have corresponding switch points.

    Abstract translation: 本发明的一个实施例提出了一种编码服务器，其包括被配置为编码与用于自适应流传输的内容标题相关联的视频流的组件。 视频流首先由VC1编码器处理，以产生包括多个GOP的编码视频流，每个GOP包括关键帧并且具有不同的重放偏移。 然后将编码的视频流打包，使得GOP被存储在打包编码的流的数据分组中。 SHI生成器生成与打包编码流相关联的SHI，其包括与每个GOP相关联的切换点。 每个切换点包括与相应GOP相关联的重放偏移和存储对应GOP的关键帧的数据分组。 与与相同内容标题相关联并被编码为不同播放比特率的多个打包编码视频流相关联的SHI具有对应的切换点。

    Text-to-speech converter
    7.
    发明授权
    Text-to-speech converter 有权
    文字转语音转换器

    公开(公告)号：US06546366B1

    公开(公告)日：2003-04-08

    申请号：US09258507

    申请日：1999-02-26

    Applicant: David Randall Ronca ,  Stephen Francis Ruhl

    Inventor： David Randall Ronca ,  Stephen Francis Ruhl

    IPC: G10L1304

    CPC classification number: H04M3/493 ,  G10L13/04 ,  H04M3/4931 ,  H04M3/5307 ,  H04M7/12 ,  H04M2201/60

    Abstract: A text-to-speech converter includes a text-to-speech engine receiving source text and converting the source text into speech data. A read mechanism reads speech data from the text-to-speech engine and writes the speech data to a buffer. A throttle mechanism reads speech data from the buffer and conveys the speech data to a playback operation. The throttle mechanism triggers the read mechanism to read data from the text-to-speech engine and writes the speech data to the buffer so that unread speech data in the buffer remains ahead of speech data read by the throttle mechanism by at least a predetermined amount.

    Abstract translation: 文本到语音转换器包括接收源文本并将源文本转换为语音数据的文本到语音引擎。 读取机构从文本到语音引擎读取语音数据并将语音数据写入缓冲器。 节流机构从缓冲器读取语音数据并将语音数据传送到回放操作。 节流机构触发阅读机制从文本到语音引擎读取数据，并将语音数据写入缓冲器，使得缓冲器中未读的语音数据保持在由节流机构读取的语音数据之前至少预定的量 。

    Content Playback APIS Using Encrypted Streams
    10.
    发明申请
    Content Playback APIS Using Encrypted Streams 有权
    内容播放APIS使用加密流

    公开(公告)号：US20120226915A1

    公开(公告)日：2012-09-06

    申请号：US13041303

    申请日：2011-03-04

    Applicant: James Mitch ZOLLINGER ,  Yung-Hsiao Lai ,  Anthony Neal Park ,  David Randall Ronca ,  Scott Gregory Kelly

    Inventor： James Mitch ZOLLINGER ,  Yung-Hsiao Lai ,  Anthony Neal Park ,  David Randall Ronca ,  Scott Gregory Kelly

    IPC: G06F12/14

    CPC classification number: G06F21/10

    Abstract: One embodiment of the present invention sets forth a technique for decrypting digital content in a secure environment. The technique includes the steps of receiving a digital rights management (DRM) license associated with a first frame of encrypted data from a DRM server, where the DRM license includes a decryption key for decrypting the first frame of encrypted data, transmitting the DRM license to a secure content playback pipeline for storage, and transmitting the first frame of encrypted data to the secure content playback pipeline for decryption, where, in response to receiving the first frame of encrypted data, a trusted processing entity within the secure content playback pipeline decrypts the first frame of encrypted data based on the decryption key included in the DRM license to generate a first set of decrypted data and store the first set of decrypted data in a secure memory space.

    Abstract translation: 本发明的一个实施例提出了一种在安全环境中解密数字内容的技术。 该技术包括以下步骤：从DRM服务器接收与加密数据的第一帧相关联的数字版权管理（DRM）许可证，其中DRM许可证包括用于解密加密数据的第一帧的解密密钥，将DRM许可证发送到 用于存储的安全内容回放流水线，以及将加密数据的第一帧发送到用于解密的安全内容回放流水线，其中响应于接收到加密数据的第一帧，安全内容回放流水线内的可信处理实体解密 基于包括在DRM许可证中的解密密钥的加密数据的第一帧，以生成第一组解密数据，并将第一组解密数据存储在安全存储器空间中。

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