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1. 发明授权

US5515511A Hybrid digital/analog multimedia hub with dynamically allocated/released channels for video processing and distribution 失效
标题翻译：混合数字/模拟多媒体集线器，具有动态分配/释放的视频处理和分配通道
公开(公告)号：US5515511A
公开(公告)日：1996-05-07
申请号：US254201
申请日：1994-06-06
申请人： Tam M. Nguyen , Deepak Rana , Antonio Ruiz , Barry E. Willner
发明人： Tam M. Nguyen , Deepak Rana , Antonio Ruiz , Barry E. Willner
IPC分类号： H04L12/28 , H04L12/64 , H04L29/06 , H04J3/17
CPC分类号： H04L65/605 , H04L12/2856 , H04L12/2874 , H04L12/6418 , H04L29/06 , H04L65/4084 , H04L2012/6456 , H04L2012/6483 , H04L2012/6486 , H04L29/06027
摘要： A multimedia distribution network combines the flexibility of digital video and digital networks with the low cost, high bandwidth, and isochronous capabilities of analog video distribution. At the heart of the network is a hybrid digital/analog multimedia hub, called a C-box, which provides connectivity to digital networks, both local area and wide area, with the necessary video compression and decompression, composition engines for multiple video streams and analog/digital conversions of the multiple video streams for connectivity to an analog video distribution network for delivery to end user workstations. The C-box receives multiple compressed digital video streams, decompresses the video streams, converts the decompressed video streams to analog, and delivers the converted analog signals to workstations via an analog cable television (CATV) network. The amount of video processing (e.g., compression and decompression) power required is proportional to the number of active video streams instead of the number of attached end user workstations. The analog channels over which the converted analog signals are transmitted are dynamically allocated, and once the analog signals have been transmitted to a requesting client terminal, the channels are released for reuse.
摘要翻译：多媒体分发网络将数字视频和数字网络的灵活性与模拟视频分发的低成本，高带宽和同步功能相结合。网络的核心是混合数字/模拟多媒体集线器，称为C盒，它提供与数字网络（包括局域和广域）的连接，具有必要的视频压缩和解压缩，用于多个视频流的组合引擎，用于连接到模拟视频分配网络的多个视频流的模拟/数字转换，以传送到最终用户工作站。 C盒接收多个压缩数字视频流，解压缩视频流，将解压缩的视频流转换为模拟，并通过模拟有线电视（CATV）网络将转换的模拟信号传送到工作站。所需的视频处理量（例如，压缩和解压缩）的功率与活动视频流的数量成比例，而不是连接的最终用户工作站的数量。转换的模拟信号被传输的模拟通道被动态地分配，一旦模拟信号已被发送到请求客户终端，则信道被释放以供重用。

2. 发明授权

US5764970A Method and apparatus for supporting speculative branch and link/branch on count instructions 失效
标题翻译：在计数指令上支持推测分支和链接/分支的方法和装置
公开(公告)号：US5764970A
公开(公告)日：1998-06-09
申请号：US560614
申请日：1995-11-20
申请人： Deepak Rana , David A. Schroter
发明人： Deepak Rana , David A. Schroter
IPC分类号： G06F9/38 , G06F9/40
CPC分类号： G06F9/3863 , G06F9/384 , G06F9/3842
摘要： A method and apparatus for supporting speculative execution of count and link register modifying instructions in a microprocessor is provided. The apparatus includes a queue of rename buffers storing count/link register operand data resulting from speculatively executed instructions that modify a count/link register. The queue contains a set of control buffers, wherein each control buffer contains control bits associated with a rename buffer, the control bits including an instruction identifier tag identifying a speculatively executed instruction, the operand data of the speculatively executed instruction being stored in the associated rename buffer, and an available bit indicating when the operand data no longer needs to be stored in the associated rename buffer. The apparatus control logic sets the control bits for each control buffer, including setting the instruction identifier tag to the value indicated by a dispatch unit, and selectively sets or resets the available bit based on resolution of the speculatively executed instruction.
摘要翻译：提供了一种用于在微处理器中支持计数和链接寄存器修改指令的推测执行的方法和装置。该装置包括一个重命名缓冲器队列，存储由推测性地执行的修改计数/链接寄存器的指令产生的计数/链接寄存器操作数数据。队列包括一组控制缓冲器，其中每个控制缓冲器包含与重命名缓冲器相关联的控制位，控制位包括标识推测性执行的指令的指令标识符标签，被推测执行的指令的操作数数据存储在相关联的重命名缓冲区，以及指示何时操作数数据不再需要存储在关联的重命名缓冲区中的可用位。设备控制逻辑设置每个控制缓冲器的控制位，包括将指令标识符标签设置为由调度单元指示的值，并且基于推测执行的指令的分辨率选择性地设置或复位可用位。

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