公开(公告)号：US09602568B2

公开(公告)日：2017-03-21

申请号：US14822816

申请日：2015-08-10

Applicant: BROADCOM CORPORATION

Inventor： Rajesh Shankarrao Mamidwar ,  Sanjeev Sood ,  Anand Tongle ,  David Wu ,  Prashant Katre

IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08 ,  H04L12/931 ,  H04L12/70 ,  H04L12/933 ,  H04L12/861 ,  H04L1/18 ,  H04L12/883 ,  H04L12/64 ,  H04L12/879

CPC classification number: H04L65/604 ,  H04L1/1874 ,  H04L49/103 ,  H04L49/206 ,  H04L49/35 ,  H04L49/9021 ,  H04L49/9026 ,  H04L49/9036 ,  H04L49/9047 ,  H04L65/607 ,  H04L67/32 ,  H04L2012/5678 ,  H04L2012/5681 ,  H04L2012/6489

Abstract: A system for adaptive audio video (AV) stream processing may include at least one processor and a switch device. The switch device may be configured to route AV traffic to the processor, and to receive AV traffic from the processor and provide the AV traffic to a client device via one or more channels. The processor may monitor a transcoder buffer depth and depths of buffers associated with channels over which the AV traffic is being transmitted. The processor may adaptively modify one or more attributes associated with the AV traffic based at least on the monitored buffer depths. For example, the processor may adaptively adjust a bit rate associated with transcoding the AV traffic based at least on the transcoder buffer depth. The processor may utilize the depths of the buffers associated with the channels to adaptively adjust the amount of AV traffic provided for transmission over the channels.

公开(公告)号：US09985996B2

公开(公告)日：2018-05-29

申请号：US14151690

申请日：2014-01-09

Applicant: BROADCOM CORPORATION

Inventor： Rajesh Shankarrao Mamidwar ,  Darren Duane Neuman ,  Flaviu Dorin Turean ,  David ChaoHua Wu ,  Anand Tongle ,  Sanjeev Sood ,  Prashant Katre ,  Predrag Kostic

IPC: H04L29/06

CPC classification number: H04L65/1023 ,  H04L65/60

Abstract: A device for decoupling audio-video (AV) traffic processing from non-AV traffic processing may include a first processor and a second processor. The first processor may be configured to establish a network connection with a client device, determine whether the network connection is associated with AV traffic, transfer the network connection to a second processor when the network connection is associated with AV traffic, and process non-AV traffic associated with the network connection when the network connection is not associated with AV traffic. The second processor may be configured to receive the network connection from the first processor and process the AV traffic associated with the network connection.

公开(公告)号：US09137285B2

公开(公告)日：2015-09-15

申请号：US14091280

申请日：2013-11-26

Applicant: BROADCOM CORPORATION

Inventor： Rajesh Shankarrao Mamidwar ,  Sanjeev Sood ,  Anand Tongle ,  David Wu ,  Prashant Katre

IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08 ,  H04L12/70 ,  H04L12/933 ,  H04L12/861 ,  H04L1/18 ,  H04L12/883 ,  H04L12/64 ,  H04L12/879

CPC classification number: H04L65/604 ,  H04L1/1874 ,  H04L49/103 ,  H04L49/206 ,  H04L49/35 ,  H04L49/9021 ,  H04L49/9026 ,  H04L49/9036 ,  H04L49/9047 ,  H04L65/607 ,  H04L67/32 ,  H04L2012/5678 ,  H04L2012/5681 ,  H04L2012/6489

Abstract: A system for adaptive audio video (AV) stream processing may include at least one processor and a switch device. The switch device may be configured to route AV traffic to the processor, and to receive AV traffic from the processor and provide the AV traffic to a client device via one or more channels. The processor may monitor a transcoder buffer depth and depths of buffers associated with channels over which the AV traffic is being transmitted. The processor may adaptively modify one or more attributes associated with the AV traffic based at least on the monitored buffer depths. For example, the processor may adaptively adjust a bit rate associated with transcoding the AV traffic based at least on the transcoder buffer depth. The processor may utilize the depths of the buffers associated with the channels to adaptively adjust the amount of AV traffic provided for transmission over the channels.

Abstract translation: 用于自适应音频视频（AV）流处理的系统可以包括至少一个处理器和交换设备。 交换设备可以被配置为将AV业务路由到处理器，并且从处理器接收AV业务，并且经由一个或多个信道将AV业务提供给客户端设备。 处理器可以监视代码转换器缓冲器的深度和与正在发送AV业务的信道相关联的缓冲器的深度。 至少基于所监视的缓冲器深度，处理器可以自适应地修改与AV业务相关联的一个或多个属性。 例如，处理器可以至少基于代码转换器缓冲器深度来自适应地调整与AV业务的代码转换相关联的比特率。 处理器可以利用与信道相关联的缓冲器的深度来自适应地调整提供用于通过信道传输的AV业务量。

公开(公告)号：US20150082337A1

公开(公告)日：2015-03-19

申请号：US14092853

申请日：2013-11-27

Applicant: Broadcom Corporation

Inventor： Rajesh Shankarrao MAMIDWAR ,  Francis Chi-Wai Cheung ,  Sanjeev Sood ,  Prashant Katre ,  Flaviu Dorin Turean ,  Anand Tongle ,  David ChaoHua Wu ,  Ming Chet Liew

IPC: H04N21/2389 ,  H04N21/4627 ,  H04N21/236 ,  H04N21/2347 ,  H04N21/2365

CPC classification number: H04N21/23895 ,  H04N21/2347 ,  H04N21/42623 ,  H04N21/4408 ,  H04N21/4627 ,  H04N21/835

Abstract: A system for pipelined encryption and packetization of audio video (AV) data may consecutively encrypt a number of AV data units based on a security mechanism, associate the encrypted AV data units with a security header, where the security header is generated before the AV data units are encrypted, and the security header includes information related to the security mechanism, generate network packets for transporting the encrypted AV data units and the associated security header based at least in part on an order in which the AV data units are encrypted, where one or more of the network packets is generated contemporaneous with encrypting one or more of the AV data units, and provide the network packets for transport to a client device as the packets are generated, where the AV data units are encrypted and the network packets are generated without accessing memory external to the system.

Abstract translation: 用于音频视频（AV）数据的流水线加密和分组化的系统可以基于安全机制连续加密多个AV数据单元，将加密的AV数据单元与安全报头相关联，其中在AV数据之前产生安全报头 单元被加密，并且安全报头包括与安全机制相关的信息，至少部分地基于AV数据单元被加密的顺序生成用于传输加密的AV数据单元和相关联的安全报头的网络分组，其中一个 或更多的网络分组同时生成同时加密一个或多个AV数据单元，并且在产生分组时提供用于传输到客户端设备的网络分组，其中AV数据单元被加密并且产生网络分组 无需访问系统外部的内存。