会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 67. 发明授权
    • Digital signal video color compression method and apparatus
    • 数字信号视频彩色压缩方法及装置
    • US5424755A
    • 1995-06-13
    • US904097
    • 1992-06-25
    • Bruce D. LucasAlexander G. MacInnisPaul S. Yosim
    • Bruce D. LucasAlexander G. MacInnisPaul S. Yosim
    • G09G5/00G09G3/20G09G5/02H04N1/64G09G3/02
    • H04N1/648G09G5/02G09G3/2051
    • This invention provides a method of and apparatus for compressing digital video color signals derived from a natural image and generating display signals for a color image composed of pixels derived from the compressed signals in which digital color signals representative of color depth intensities of three colors for each pixel to be displayed, each color signal having at least four bits representing the color intensity of a corresponding color for a corresponding pixel and arranged from most to least significant bits, are received; a digital dither signal for each pixel to be displayed is generated; a selected number of the most significant bits of each received color signal are summed with the corresponding generated dither signal; a selected number of the least significant bits of the summed color and dither signals are discarded to compress the corresponding received color signal; the compressed color signals related to a common pixel are concatenated to generate a digital output signal having a predetermined bit length less than the summed bit lengths of the received digital color signals and representative of the depth intensities of three colors for the common pixel; and analog display driver signals representative of the color intensities of pixels to be displayed are generated by selecting from a color lookup table stored in a digital to analog converter analog signals corresponding to the stored output signals.
    • 本发明提供了一种用于压缩从自然图像导出的数字视频彩色信号的方法和装置,并且生成由压缩信号导出的像素组成的彩色图像的显示信号,其中代表每种颜色的三种颜色深度强度的数字彩色信号 要显示的像素,每个颜色信号具有至少四位表示相应像素的对应颜色的颜色强度并且从大多数到最低有效位排列; 生成要显示的每个像素的数字抖动信号; 每个接收到的颜色信号的选定数目的最高有效位与对应的产生的抖动信号相加; 相加颜色和抖动信号的选定数目的最低有效位被丢弃以压缩对应的接收颜色信号; 与公共像素相关联的压缩颜色信号被级联以产生具有小于接收的数字彩色信号的相加位长度的预定位长度并表示公共像素的三种颜色的深度强度的数字输出信号; 并且通过从存储在对应于所存储的输出信号的数模转换器模拟信号中的颜色查找表中选择表示要显示的像素的颜色强度的模拟显示驱动器信号。
    • 70. 发明授权
    • Selective intra and/or inter prediction video encoding based on a channel rate
    • 基于信道速率的选择性帧内和/或帧间预测视频编码
    • US09295076B2
    • 2016-03-22
    • US13240906
    • 2011-09-22
    • Alexander G. MacInnis
    • Alexander G. MacInnis
    • H04N7/26H04W72/12H04W72/04
    • H04W72/1242H04W72/0446H04W72/0486H04W72/12H04W72/1252H04W72/1268H04W72/1278Y02D70/1224Y02D70/1242Y02D70/1244Y02D70/1246Y02D70/142Y02D70/144Y02D70/146Y02D70/162Y02D70/164
    • Selective intra and/or inter-prediction video encoding. Based upon anticipation of a future communication channel rate (e.g., actual physical layer channel rate) or video data rate of a communication channel, a given prediction mode for video encoding may be adaptively selected. Prediction of a future or expected value corresponding to at least one parameter associated with the communication channel (e.g., channel rate, video data rate, etc.) can drive operational mode selection/adaptation in accordance with video coding. Alternatively, one or more actual measured values corresponding to at least one parameter can drive operational mode selection/adaptation in accordance with video coding. In some instances, neither intra-prediction nor inter-prediction is performed in accordance with a non-feedback operational mode, and an input video signal undergoes compression (e.g., without intra-prediction and/or inter-prediction). Transitioning between various video coding operational modes may be made in different manners and based on different criteria as desired in various given applications.
    • 选择性帧内和/或帧间预测视频编码。 基于对通信信道的未来通信信道速率(例如实际物理层信道速率)或视频数据速率的预期,可以自适应地选择用于视频编码的给定预测模式。 对应于与通信信道相关联的至少一个参数(例如,信道速率,视频数据速率等)的未来或预期值的预测可以根据视频编码来驱动操作模式选择/适配。 或者,对应于至少一个参数的一个或多个实际测量值可以根据视频编码来驱动操作模式选择/适配。 在一些情况下,根据非反馈操作模式不执行帧内预测和帧间预测,并且输入视频信号经历压缩(例如,没有帧内预测和/或帧间预测)。 各种视频编码操作模式之间的转换可以以不同的方式进行,并且可以根据各种给定应用中所期望的不同标准进行。