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51. 发明授权

US07466248B2 Method and apparatus for improved multimedia decoder 失效
标题翻译：用于改进多媒体解码器的方法和装置
公开(公告)号：US07466248B2
公开(公告)日：2008-12-16
申请号：US11737699
申请日：2007-04-19
申请人： Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian
发明人： Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian
IPC分类号： H03M7/40
CPC分类号： H03M7/425 , H03M7/40
摘要： Embodiments include systems and methods of improving processing in a decoder in a multimedia transmission system. Multimedia data may include one or more of motion video, audio, still images, or any other suitable type of audio-visual data. One embodiment includes a system and method of parsing fixed and variable length codes from a bit-wise stream of multi-media data by maintaining and reading the data in a processor aligned (e.g., word aligned) way. Another embodiment includes a system and method of decoding variable length codes, particular as received from such a variable length code using multiple levels of decoding tables to speed up decoder table lookup.
摘要翻译：实施例包括改进多媒体传输系统中的解码器中的处理的系统和方法。多媒体数据可以包括运动视频，音频，静止图像或任何其它合适类型的视听数据中的一个或多个。一个实施例包括通过以处理器对齐（例如，字对准）的方式维持和读取数据来解码来自多媒体数据的逐位流的固定和可变长度代码的系统和方法。另一实施例包括对可变长度码进行解码的系统和方法，特别是从使用多级解码表的这种可变长度码接收到的，以加速解码器表查找。

52. 发明申请

US20080151101A1 PREPROCESSOR METHOD AND APPARATUS 有权
标题翻译：预处理方法和装置
公开(公告)号：US20080151101A1
公开(公告)日：2008-06-26
申请号：US11557778
申请日：2006-11-08
申请人： Tao Tian , Fang Liu , Fang Shi , Vijayalakshmi R. Raveendran
发明人： Tao Tian , Fang Liu , Fang Shi , Vijayalakshmi R. Raveendran
IPC分类号： H04N11/20
CPC分类号： H04N7/0115 , H04N5/145 , H04N5/147 , H04N7/0112 , H04N7/012 , H04N11/046
摘要： The invention generally relates to multimedia data processing, and more particularly, to processing operations performed prior to or in conjunction with data compression processing. A method of processing multimedia data includes receiving Interlaced video frames, obtaining metadata for the interlaced video frames, converting the interlaced video frames to progressive video using at least a portion of the metadata; and providing the progressive video and at least a portion of the metadata to an encoder for use in encoding the progressive video. The method can also include generating spatial information and bi-directional motion information, for the interlaced video frames, and generating progressive video based on the interlaced video frames using the spatial and bi-directional motion information.
摘要翻译：本发明一般涉及多媒体数据处理，更具体地说，涉及在数据压缩处理之前或结合时进行的处理操作。一种处理多媒体数据的方法包括：接收隔行视频帧，获取隔行视频帧的元数据;使用至少一部分元数据将隔行视频帧转换成逐行视频; 以及将逐行视频和至少一部分元数据提供给编码器以用于编码逐行视频。该方法还可以包括为隔行视频帧生成空间信息和双向运动信息，以及使用空间和双向运动信息基于隔行视频帧产生渐进视频。

53. 发明授权

US07268708B2 Method and apparatus for improved multimedia decoder 有权
标题翻译：用于改进多媒体解码器的方法和装置
公开(公告)号：US07268708B2
公开(公告)日：2007-09-11
申请号：US11434827
申请日：2006-05-15
申请人： Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian
发明人： Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian
IPC分类号： H03M7/40
CPC分类号： H03M7/425 , H03M7/40
摘要： Embodiments include systems and methods of improving processing in a decoder in a multimedia transmission system. Multimedia data may include one or more of motion video, audio, still images, or any other suitable type of audio-visual data. One embodiment includes a system and method of parsing fixed and variable length codes from a bit-wise stream of multi-media data by maintaining and reading the data in a processor aligned (e.g., word aligned) way. Another embodiment includes a system and method of decoding variable length codes, particular as received from such a variable length code using multiple levels of decoding tables to speed up decoder table lookup.
摘要翻译：实施例包括改进多媒体传输系统中的解码器中的处理的系统和方法。多媒体数据可以包括运动视频，音频，静止图像或任何其它合适类型的视听数据中的一个或多个。一个实施例包括通过以处理器对齐（例如，字对准）的方式维持和读取数据来解码来自多媒体数据的逐位流的固定和可变长度代码的系统和方法。另一实施例包括对可变长度码进行解码的系统和方法，特别是从使用多级解码表的这种可变长度码接收到的，以加速解码器表查找。

54. 发明授权

US08750387B2 Adaptive encoder-assisted frame rate up conversion 有权
标题翻译：自适应编码器辅助帧速率转换
公开(公告)号：US08750387B2
公开(公告)日：2014-06-10
申请号：US11558833
申请日：2006-11-10
申请人： Tao Tian , Fang Shi , Vijayalakshmi R. Raveendran
发明人： Tao Tian , Fang Shi , Vijayalakshmi R. Raveendran
IPC分类号： H04N7/12 , H04N7/46 , H04N7/26 , H04N7/01
CPC分类号： H04N19/00751 , H04N7/0127 , H04N19/105 , H04N19/109 , H04N19/132 , H04N19/31 , H04N19/46 , H04N19/577 , H04N19/587 , H04N19/70
摘要： Adaptive video encoding and decoding methods and apparatuses for encoder-assisted frame rate up-conversion (EA-FRUC) are described herein. An encoder selectively encodes at least a portion of a video frame, such as a block, using an interpolated FRUC frame as a reference. The encoder interpolates at least a portion of the FRUC frame at the same time instance as the yet to be encoded video frame, and selects one of a plurality of FRUC encoding modes for that portion, e.g., based on rate distortion (RD). The encoder encodes the frame using the selected FRUC encoding mode, the FRUC reference frame, and any additional reference frames that may be indicated. A decoder interpolates the FRUC frame and uses it for decoding with knowledge of the particular FRUC mode that was used by the encoder. The encoder communicates the FRUC mode for a block via one or more existing parameters in the encoded video frame.
摘要翻译：本文描述了用于编码器辅助帧速率上变换（EA-FRUC）的自适应视频编码和解码方法和装置。编码器使用内插FRUC帧作为参考来选择性地编码视频帧的至少一部分，诸如块。编码器在与尚未被编码的视频帧相同的时间实例中内插FRUC帧的至少一部分，并且例如基于速率失真（RD）来选择该部分的多个FRUC编码模式中的一个。编码器使用选择的FRUC编码模式，FRUC参考帧和可以指示的任何附加参考帧对帧进行编码。解码器内插FRUC帧，并使用它来解码编码器使用的特定FRUC模式的知识。编码器通过编码视频帧中的一个或多个现有参数来传送块的FRUC模式。

55. 发明授权

US07974341B2 Rate control for multi-layer video design 有权
标题翻译：速率控制多层视频设计
公开(公告)号：US07974341B2
公开(公告)日：2011-07-05
申请号：US11416858
申请日：2006-05-02
申请人： Peisong Chen , Tao Tian , Vijayalakshmi R. Raveendran
发明人： Peisong Chen , Tao Tian , Vijayalakshmi R. Raveendran
IPC分类号： H04N7/18
CPC分类号： H04N19/31 , H04N19/115 , H04N19/124 , H04N19/15 , H04N19/177 , H04N19/194
摘要： Methods and apparatus for efficient encoding multimedia data, such as live video streams are disclosed. The multimedia data is pre-encoded into multiple layers and characteristics of the pre-encoded data are determined. Based at least in part on the determined characteristics, the multimedia data is encoded into multiple layers.
摘要翻译：公开了用于高效编码多媒体数据（例如直播视频流）的方法和装置。多媒体数据被预编码成多层，并且确定预编码数据的特性。至少部分地基于所确定的特征，将多媒体数据编码成多层。

56. 发明申请

US20080101476A1 VIDEO CODING RATE ADAPTATION TO REDUCE PACKETIZATION OVERHEAD 审中-公开
标题翻译：视频编码速率适应性降低包装成本
公开(公告)号：US20080101476A1
公开(公告)日：2008-05-01
申请号：US11555632
申请日：2006-11-01
申请人： Tao Tian , Vijayalakshmi R. Raveendran
发明人： Tao Tian , Vijayalakshmi R. Raveendran
IPC分类号： H04N7/12
CPC分类号： H04N19/174 , H04N19/115 , H04N19/15 , H04N19/152 , H04N19/164 , H04N19/172 , H04N19/177 , H04N19/61
摘要： This disclosure describes techniques for video coding rate adaptation to reduce packetization overhead. The video coding rate controls the number of coding bits allocated to a segment of encoded video, and hence the length of the encoded video segment. Differences between the length of the encoded video segment and the cumulative length of a series of packets used to encode the video segment result in unused packet space within the last packet in the series. This unused packet space is typically filled with padding bits. In accordance with the disclosure, the video coding rate is adjusted for a segment of digital video so that the encoded video more closely fits within the series of packets, thereby reducing the number of padding bits required by the last packet.
摘要翻译：本公开描述了用于视频编码速率适配以减少分组化开销的技术。视频编码率控制分配给编码视频片段的编码比特数，并因此控制编码视频片段的长度。编码视频段的长度与用于编码视频段的一系列分组的累积长度之间的差异导致该系列中最后一个分组内未使用的分组空间。这个未使用的分组空间通常用填充比特填充。根据本公开，对于数字视频段调整视频编码率，使得编码视频更接近于一系列分组，从而减少最后一个分组所需的填充比特数。

57. 发明申请

US20070230564A1 VIDEO PROCESSING WITH SCALABILITY 审中-公开
标题翻译：视频处理与可扩展性
公开(公告)号：US20070230564A1
公开(公告)日：2007-10-04
申请号：US11562360
申请日：2006-11-21
申请人： Peisong Chen , Tao Tian , Fang Shi , Vijayalakshmi R. Raveendran
发明人： Peisong Chen , Tao Tian , Fang Shi , Vijayalakshmi R. Raveendran
IPC分类号： H04N11/02
CPC分类号： H04N21/434 , H04N19/29 , H04N19/31 , H04N19/70 , H04N21/234327 , H04N21/2662
摘要： In general, this disclosure describes video processing techniques that make use of syntax elements and semantics to support low complexity extensions for multimedia processing with video scalability. The syntax elements and semantics may be added to network abstraction layer (NAL) units and may be especially applicable to multimedia broadcasting, and define a bitstream format and encoding process that support low complexity video scalability. In some aspects, the techniques may be applied to implement low complexity video scalability extensions for devices that otherwise conform to the H.264 standard. For example, the syntax element and semantics may be applicable to NAL units conforming to the H.264 standard.
摘要翻译：一般来说，本公开描述了利用语法元素和语义来支持具有视频可扩展性的多媒体处理的低复杂度扩展的视频处理技术。语法元素和语义可以被添加到网络抽象层（NAL）单元，并且可以特别适用于多媒体广播，并且定义支持低复杂度视频可扩展性的比特流格式和编码过程。在一些方面，可以将这些技术应用于为符合H.264标准的设备实现低复杂度视频可扩展性扩展。例如，语法元素和语义可以适用于符合H.264标准的NAL单元。

58. 发明授权

US10009647B2 Reducing end-to-end latency for communicating information from a user device to a receiving device via television white space 有权
公开(公告)号：US10009647B2
公开(公告)日：2018-06-26
申请号：US13038323
申请日：2011-03-01
申请人： Vijayalakshmi R. Raveendran
发明人： Vijayalakshmi R. Raveendran
IPC分类号： H04N21/235 , H04N21/41 , H04N21/435 , H04L5/00 , H04N21/4402 , H04N21/4363 , H04N21/438 , H04N21/485
CPC分类号： H04N21/440218 , G09G2370/06 , G09G2370/16 , H04L5/003 , H04N21/235 , H04N21/4122 , H04N21/435 , H04N21/43637 , H04N21/4381 , H04N21/4858
摘要： A system transmits human interface data (HID) as ancillary data to a television receiver over white space. Content on a user mobile device may be wirelessly displayed on an external display device. It may be desirable to have user interactions with the mobile device (such as controls for video games) displayed on the external display device in a manner that does not suffer from the latency of standard video being set to the display device. The HID may be captured and processed separately from the video data. The HID may be formed into a transport stream for transmission over white space. The HID may be included as ancillary data in the transport stream. Timestamps may be used to coordinate the transmission of the HID as well as its processing when received by a television receiver.

59. 发明授权

US09787725B2 User input back channel for wireless displays 有权
公开(公告)号：US09787725B2
公开(公告)日：2017-10-10
申请号：US13344253
申请日：2012-01-05
申请人： Xiaolong Huang , Vijayalakshmi R. Raveendran , Xiaodong Wang , Fawad Shaukat
发明人： Xiaolong Huang , Vijayalakshmi R. Raveendran , Xiaodong Wang , Fawad Shaukat
IPC分类号： H04L12/28 , H04L29/06 , H04W99/00
CPC分类号： H04L65/00 , H04L69/24 , H04W99/00
摘要： As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. The user input data transmitted by the wireless sink device can be input data obtained at a third party device and forwarded to the wireless source device.

60. 发明授权

US09413803B2 User input back channel for wireless displays 有权
标题翻译：无线显示器的用户输入返回通道
公开(公告)号：US09413803B2
公开(公告)日：2016-08-09
申请号：US13344394
申请日：2012-01-05
申请人： Xiaolong Huang , Vijayalakshmi R. Raveendran , Xiaodong Wang , Fawad Shaukat
发明人： Xiaolong Huang , Vijayalakshmi R. Raveendran , Xiaodong Wang , Fawad Shaukat
IPC分类号： G06F3/01 , G06F3/02 , G06F3/041 , G06F3/033 , H04L29/06 , G06F3/14
CPC分类号： H04L65/608 , G06F3/14 , H04L65/4092 , H04L65/604
摘要： As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device.
摘要翻译：作为通信会话的一部分，无线源设备可以将音频和视频数据传输到无线宿设备，并且无线宿设备可以将在无线宿设备处接收的用户输入数据发送回无线源设备。以这种方式，无线接收设备的用户可以控制无线源设备并且控制正在从无线源设备发送到无线接收设备的内容。

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