-
公开(公告)号：US5550825A
公开(公告)日：1996-08-27
申请号：US794477
申请日：1991-11-19
IPC分类号： H04H20/30 , H04H20/79 , H04H40/90 , H04H60/15 , H04H60/23 , H04N7/10 , H04N21/2365 , H04N21/434 , H04J1/00 , H04N7/14
CPC分类号： H04H40/90 , H04H20/30 , H04H20/79 , H04N21/2365 , H04N21/4347 , H04N7/10 , H04H2201/70 , H04H60/15 , H04H60/23
摘要： A headend method and apparatus for a digital transmission system is provided which includes inputs for receiving first and second program information from first and second program sources and inputs for receiving first and second control information from first and second control sources. The first and second program information is applied to a switching circuit and a switch control controls the switching circuit to output channels of program information comprising combinations of the first and second program information for output to a subscriber. Processing circuitry allows for selectively providing the first and second control information to the channels output from the switching circuit.
摘要翻译： 提供了一种用于数字传输系统的前端方法和装置，其包括用于从第一和第二节目源接收第一和第二节目信息的输入以及用于从第一和第二控制源接收第一和第二控制信息的输入。 第一和第二节目信息被应用于切换电路，并且开关控制控制切换电路以输出包括第一和第二节目信息的组合的节目信息的频道，以输出到用户。 处理电路允许选择性地将第一和第二控制信息提供给从开关电路输出的通道。
-
公开(公告)号：US5654746A
公开(公告)日：1997-08-05
申请号：US352162
申请日：1994-12-01
IPC分类号： G06F21/22 , A63F13/06 , A63F13/12 , G06F13/00 , G09C1/00 , H04N7/16 , H04N7/167 , H04N21/81 , H04N7/10 , H04H1/02 , H04H7/00
CPC分类号： A63F13/73 , A63F13/12 , A63F13/71 , A63F13/77 , H04N21/8166 , H04N7/165 , H04N7/1675 , A63F2300/206 , A63F2300/401 , A63F2300/409 , A63F2300/532 , A63F2300/552 , A63F2300/636
摘要： A communications system for the delivery of digital data programs to a remote location includes a transmitter for transmitting a signal having the digital data programs and a communications terminal located at the remote location. The communications terminal includes a control circuit including authorizing circuitry responsive to authorization data for authorizing the communications terminal to access authorized ones of the digital data programs in one of a first and a second authorization mode. For example, automatic authorization modes for game play may comprise an arcade mode and a rental mode, simulating manual access methods i.e. paying for play at a video arcade or for rental of games from a video game store. Moreover, new games may be accessed without charge by the game player if authorized according to a free service authorization map. Furthermore, parents may limits game play to children prior to a particular time of day such as bed-time or to a maximum playtime limit according to a secret downloadbale password known only to the parents. A game player may only read and not write authorization and control data.
-
公开(公告)号：US4868738A
公开(公告)日：1989-09-19
申请号：US766024
申请日：1985-08-15
申请人： John W. Kish , John S. Alcorn , David B. Burleson
发明人： John W. Kish , John S. Alcorn , David B. Burleson
CPC分类号： G06F12/1081 , G06F12/08 , G06F13/128 , G06F13/28
摘要： An improved virtual memory computer system comprising a main processing unit for executing application and operating system software without virtual memory code and independently of virtual memory operation. A dedicated second processing unit is provided for maintaining a memory map, which translates addresses in the main processing unit address space into physical memory addressess of a primary memory. A network interface allows pages or segments of data from a secondary memory connected to a communications network to be transferred into the primary memory in a manner transparent to the operation of the main processing unit. A direct memory access (DMA) circuit transfer the header portion of a network-transferred page of data into a separate auxiliary addressable memory for storage of network overhead information, while the useful data portions of the page are stored directly in locations in the primary addressable memory. A requested page of data is then placed directly in a desired location in primary memory without the need for moving or retransferring the data within the primary memory to strip off network header information after a DMA transfer. The system is responsive to detect and correct a page fault condition prior to execution of the main processing unit instruction which generated the page fault, which obviates reexecution of instructions or correction of instruction execution results by the main processing unit.
摘要翻译： 一种改进的虚拟存储器计算机系统，包括用于执行应用的主处理单元和没有虚拟存储器代码且独立于虚拟存储器操作的操作系统软件 提供专用的第二处理单元，用于维持存储器映射，该存储器映射将主处理单元地址空间中的地址转换成主存储器的物理存储器寻址。 网络接口允许来自连接到通信网络的辅助存储器的数据的页面或段以对主处理单元的操作透明的方式传送到主存储器中。 直接存储器访问（DMA）电路将网络传送的数据页的头部分传送到单独的辅助可寻址存储器中，以存储网络开销信息，而页面的有用数据部分直接存储在主要可寻址的位置 记忆。 然后将所请求的数据页直接放置在主存储器中的期望位置，而不需要移动或重新传送主存储器中的数据，以在DMA传输之后剥离网络标题信息。 该系统响应于在执行产生页面错误的主处理单元指令之前检测和校正页面错误状况，这消除了主处理单元的指令的重新执行或指令执行结果的校正。
-
公开(公告)号：US07904935B2
公开(公告)日：2011-03-08
申请号：US10663037
申请日：2003-09-15
IPC分类号： H04N7/16
摘要： A method for providing adaptive video compression includes encoding a video stream in a first compressed format, storing the video stream in a storage device, retrieving the video stream from the storage device, decoding the video stream, encoding the video stream in a second compressed format, and storing the video stream in the storage device. Systems and other methods for providing adaptive video compression are also disclosed.
-
5.发明授权公开(公告)号：US07876768B2
公开(公告)日：2011-01-25
申请号：US11428351
申请日：2006-06-30
CPC分类号： H04N7/24 , H04L29/06027 , H04L65/602 , H04L65/608 , H04N21/2381 , H04N21/4381 , H04N21/4385 , H04N21/64322 , H04N21/6437
摘要： Systems and methods of assembling an elementary stream from an encapsulated multimedia transport stream are disclosed. In one embodiment, the method is performed in a digital home communication terminal (DHCT). This method comprises the steps of: receiving a layer-2 packet through a binding to a network interface driver; applying at least one filter to the received packet to determine whether the received packet contains one or more multimedia transport packets meeting criteria associated with the filter; and for each multimedia transport packet meeting the applied filter criteria, copying the respective multimedia transport packet to an elementary stream buffer.
摘要翻译： 公开了从封装的多媒体传输流组装基本流的系统和方法。 在一个实施例中，该方法在数字家庭通信终端（DHCT）中执行。 该方法包括以下步骤：通过绑定到网络接口驱动程序来接收第二层数据包; 对所接收的分组应用至少一个过滤器，以确定所接收的分组是否包含满足与所述过滤器相关联的准则的一个或多个多媒体传输分组; 并且对于满足所应用的过滤标准的每个多媒体传输分组，将相应的多媒体传输分组复制到基本流缓冲器。
-
6.发明申请Systems and Methods of Assembling an Elementary Stream from an Encapsulated Multimedia Transport Stream 有权从封装的多媒体传输流中组装基本流的系统和方法公开(公告)号：US20080022321A1
公开(公告)日：2008-01-24
申请号：US11428351
申请日：2006-06-30
IPC分类号： H04N7/18
CPC分类号： H04N7/24 , H04L29/06027 , H04L65/602 , H04L65/608 , H04N21/2381 , H04N21/4381 , H04N21/4385 , H04N21/64322 , H04N21/6437
摘要： Systems and methods of assembling an elementary stream from an encapsulated multimedia transport stream are disclosed. In one embodiment, the method is performed in a digital home communication terminal (DHCT). This method comprises the steps of: receiving a layer-2 packet through a binding to a network interface driver; applying at least one filter to the received packet to determine whether the received packet contains one or more multimedia transport packets meeting criteria associated with the filter; and for each multimedia transport packet meeting the applied filter criteria, copying the respective multimedia transport packet to an elementary stream buffer.
摘要翻译： 公开了从封装的多媒体传输流组装基本流的系统和方法。 在一个实施例中，该方法在数字家庭通信终端（DHCT）中执行。 该方法包括以下步骤：通过绑定到网络接口驱动程序来接收第二层数据包; 对所接收的分组应用至少一个过滤器，以确定所接收的分组是否包含满足与所述过滤器相关联的准则的一个或多个多媒体传输分组; 并且对于满足所应用的过滤标准的每个多媒体传输分组，将相应的多媒体传输分组复制到基本流缓冲器。
-
公开(公告)号：US07966642B2
公开(公告)日：2011-06-21
申请号：US10663037
申请日：2003-09-15
IPC分类号： H04N7/16
CPC分类号： H04N21/4621 , G11B20/1262 , H04N9/8042 , H04N19/107 , H04N19/136 , H04N19/14 , H04N19/152 , H04N19/156 , H04N19/159 , H04N19/172 , H04N19/186 , H04N19/40 , H04N19/423 , H04N19/61 , H04N21/4147 , H04N21/42661 , H04N21/4334 , H04N21/4402 , H04N21/440218
摘要： A method for providing adaptive video compression includes encoding a video stream in a first compressed format, storing the video stream in a storage device, retrieving the video stream from the storage device, decoding the video stream, encoding the video stream in a second compressed format, and storing the video stream in the storage device. Systems and other methods for providing adaptive video compression are also disclosed.
摘要翻译： 一种用于提供自适应视频压缩的方法包括以第一压缩格式编码视频流，将视频流存储在存储设备中，从存储设备检索视频流，解码视频流，以第二压缩格式对视频流进行编码 并将视频流存储在存储装置中。 还公开了用于提供自适应视频压缩的系统和其它方法。
-
公开(公告)号：US20090196345A1
公开(公告)日：2009-08-06
申请号：US12390449
申请日：2009-02-21
IPC分类号： H04B1/66
CPC分类号： H04N21/4621 , G11B20/1262 , H04N9/8042 , H04N19/107 , H04N19/136 , H04N19/14 , H04N19/152 , H04N19/156 , H04N19/159 , H04N19/172 , H04N19/186 , H04N19/40 , H04N19/423 , H04N19/61 , H04N21/4147 , H04N21/42661 , H04N21/4334 , H04N21/4402 , H04N21/440218
摘要： A method for providing adaptive video compression includes encoding a video stream in a first compressed format, storing the video stream in a storage device, retrieving the video stream from the storage device, decoding the video stream, encoding the video stream in a second compressed format, and storing the video stream in the storage device. Systems and other methods for providing adaptive video compression are also disclosed.
摘要翻译： 一种用于提供自适应视频压缩的方法包括以第一压缩格式编码视频流，将视频流存储在存储设备中，从存储设备检索视频流，解码视频流，以第二压缩格式对视频流进行编码 并将视频流存储在存储装置中。 还公开了用于提供自适应视频压缩的系统和其它方法。
-
9.发明授权Display system for selectively overlaying symbols and graphics onto a video signal 失效用于将符号和图形有选择地叠加到视频信号上的显示系统
公开(公告)号：US5579057A
公开(公告)日：1996-11-26
申请号：US369867
申请日：1995-01-05
申请人： Robert O. Banker , Cham Ith , Kinney C. Bacon , David B. Burleson
发明人： Robert O. Banker , Cham Ith , Kinney C. Bacon , David B. Burleson
IPC分类号： H04N5/272 , H04N5/445 , H04N5/45 , H04N7/088 , H04N7/16 , H04N21/2743 , H04N21/41 , H04N21/431 , H04N21/4786 , H04N21/4788 , H04N21/488 , H04N21/6547 , H04N5/262 , H04N5/278
CPC分类号： H04N21/4316 , H04N21/2743 , H04N21/4104 , H04N21/4786 , H04N21/4788 , H04N21/488 , H04N21/4884 , H04N21/6547 , H04N5/272 , H04N5/44504 , H04N5/44513 , H04N5/44543 , H04N5/44591 , H04N7/088 , H04N7/16 , H04N7/161 , G09G2340/12 , H04N5/45
摘要： A display system for the on screen display of information for a subscriber terminal of a subscription television system includes a display processor which can display information in the form of a display screen stored in a display memory. The display processor can be preprogrammed by the control processor with a plurality of display attributes including different symbol sets, different color palettes, whether the screen is to be a text screen, graphic screen or a combination of a text and graphics system, and the size and location of each screen display on the display area. The display processor includes a digital processor and an analog processor. The digital processor controls accessing the display data from the memory and converting it into timed digital pixels. The analog processor includes a digital to analog pixel converter which produces analog pixels from the digital pixels in a timed relation to an input video signal. The analog processor includes a multiplexer which substitutes the analog pixels for the pixels of the input video signal when display processor is active.
摘要翻译： 用于订阅电视系统的用户终端的信息的屏幕显示的显示系统包括可以以存储在显示存储器中的显示屏幕的形式显示信息的显示处理器。 显示处理器可以由控制处理器用多个显示属性预先编程，包括不同的符号组，不同的调色板，屏幕是文本屏幕，图形屏幕还是文本和图形系统的组合，以及尺寸 并在显示区域显示每个屏幕的位置。 显示处理器包括数字处理器和模拟处理器。 数字处理器控制从存储器访问显示数据并将其转换为定时数字像素。 模拟处理器包括数字到模拟像素转换器，其以与输入视频信号的定时关系从数字像素产生模拟像素。 模拟处理器包括多路复用器，当显示处理器处于活动状态时，其将模拟像素替代为输入视频信号的像素。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.022 秒)
