专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

US20120017149A1 VIDEO WHISPER SESSIONS DURING ONLINE COLLABORATIVE COMPUTING SESSIONS 审中-公开
标题翻译：在线协作计算会议期间的视频会议
公开(公告)号：US20120017149A1
公开(公告)日：2012-01-19
申请号：US12837042
申请日：2010-07-15
申请人： Jeffrey Lai , Huipin Zhang
发明人： Jeffrey Lai , Huipin Zhang
IPC分类号： G06F3/01 , G06F17/00 , G06F15/16
CPC分类号： H04N7/15 , H04L65/1069 , H04L65/403
摘要： In one embodiment, a plurality of attendee devices may participate in an online collaborative computing session to receive video and audio content for the online collaborative computing session. A particular attendee device may then either initiate or receive a communicated signal between a “whisperer” and “whisperee” that indicates a desire of the whisperer to establish a video whisper session with the whisperee. In response, the video whisper session may be established between the whisperer and whisperee devices, such as through a mutual subscription by the whisperer and whisperee to a video channel and audio channel of each other corresponding device. In this manner, users of the whisperer and whisperee devices may see and hear each other via the video whisper session, and attendee devices other than the whisperer and whisperee are prevented from playing audio from the video whisper session between the whisperer and whisperee.
摘要翻译：在一个实施例中，多个参与者设备可以参与在线协作计算会话以接收用于在线协作计算会话的视频和音频内容。然后，特定的与会者设备可以在“低语者”和“whisperee”之间发起或接收传达的信号，其指示小孩与耳语建立视频耳语会话的愿望。作为响应，视频耳语会话可以在小声和耳机设备之间建立，例如通过低音者的相互订阅和对彼此对应的设备的视频频道和音频频道的通话。以这种方式，低声用户和耳机设备的用户可以通过视频耳语会话来看到和听到对方，并且防止低语者和耳语之外的与会者设备从窃听者和耳语之间的视频耳语会话中播放音频。

12. 发明授权

US07065546B2 Method of performing quantization within a multimedia bitstream utilizing division-free instructions 失效
公开(公告)号：US07065546B2
公开(公告)日：2006-06-20
申请号：US10120210
申请日：2002-04-09
申请人： Cheung Auyeung , Huipin Zhang
发明人： Cheung Auyeung , Huipin Zhang
IPC分类号： G06F7/52
CPC分类号： G06F7/4873 , G06F2207/3828
摘要： Methods for enhancing the performance of quantization operations by converting division operations to a combination of multiplication and shift operations, which are preferably performed on a processor supporting single-instruction multiple-data (SIMD) instructions. A table of mantissa and exponent values is created for a sufficient range of values for 1/a. During quantization, the mantissa and exponent values are found in the table 1/a for associated with a given quantization division operation given by b/a which is found according to the formula b/a=(b×A)>>n. Aspects are described for application to processors that do not support non-uniform shift operations, and for reducing the necessary bit-width of the operations to increase efficiency. The quantization method may be applied to protocols such as MPEG-2 and other similar formats.

13. 发明授权

US07136541B2 Method of performing sub-pixel based edge-directed image interpolation 有权
标题翻译：执行基于子像素的边缘向量图像插值的方法
公开(公告)号：US07136541B2
公开(公告)日：2006-11-14
申请号：US10273781
申请日：2002-10-18
申请人： Huipin Zhang , Cheung Auyeung , Takao Yamazaki
发明人： Huipin Zhang , Cheung Auyeung , Takao Yamazaki
IPC分类号： G06K9/32
CPC分类号： G06T3/403
摘要： A method of generating a value for a missing pixel “x” by determining a “least harmful” local edge direction between pixels, or sub-pixels, on substantially opposing sides of the missing pixel, and interpolating the difference to arrive at a value for pixel “x”. The method involves generating sub-pixel values for locations within neighboring pixels, the sub-pixels may comprise half-pixels, quarter-pixels, three-quarter pixels, and so forth, wherein any fractional pixel quantity may be created. Absolute difference values are calculated between neighboring pixels, or sub-pixel values, to determine a least harmful local edge direction along which a value is generated for pixel “x” by interpolation.
摘要翻译：通过在缺失像素的基本相对的侧面上确定像素或子像素之间的“最不利的”局部边缘方向来产生缺失像素“x”的值的方法，并且内插差值以得到像素“x”。该方法涉及为相邻像素内的位置生成子像素值，子像素可以包括半像素，四分之一像素，四分之三像素等，其中可以创建任何分数像素数量。在相邻像素或子像素值之间计算绝对差值，以确定通过插值为像素“x”生成值的最不利的局部边缘方向。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式