公开(公告)号：US20150071296A1

公开(公告)日：2015-03-12

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.

Abstract translation: 用于将音频 - 视频（AV）流量处理与非AV流量处理分离的设备可以包括第一处理器和第二处理器。 第一处理器可以被配置为与客户端设备建立网络连接，确定网络连接是否与AV业务相关联，当网络连接与AV业务相关联时，将网络连接传送到第二处理器，并处理非AV 当网络连接不与AV流量相关联时，与网络连接相关联的流量。 第二处理器可以被配置为从第一处理器接收网络连接并处理与网络连接相关联的AV业务。

公开(公告)号：US20150085863A1

公开(公告)日：2015-03-26

申请号：US14072744

申请日：2013-11-05

Applicant: BROADCOM CORPORATION

Inventor： David WU ,  Darren Duane NEUMAN ,  Flaviu Dorin TUREAN ,  Rajesh Shankarrao MAMIDWAR ,  Anand TONGLE ,  Predrag KOSTIC

IPC: H04L12/747

CPC classification number: H04L45/742 ,  H04L49/901 ,  H04L49/9042 ,  H04L49/9047 ,  H04L49/9078

Abstract: A system for efficient memory bandwidth utilization may include a depacketizer, a packetizer, and a processor core. The depacketizer may generate header information items from received packets, where the header information items include sufficient information for the processor core to process the packets without accessing the payloads from off-chip memory. The depacketizer may accumulate multiple payloads and may write the multiple payloads to the off-chip memory in a single memory transaction when a threshold amount of the payloads have been accumulated. The processor core may receive the header information items and may generate a single descriptor for accessing multiple payloads corresponding to the header information items from the off-chip memory. The packetizer may generate a header for each payload based at least on on-chip information and without accessing off-chip memory. Thus, the subject system provides efficient memory bandwidth utilization, e.g. at least by reducing the number of off-chip memory accesses.

Abstract translation: 用于有效的存储器带宽利用的系统可以包括解包器，打包器和处理器核。 解包器可以从接收到的分组中生成报头信息项，其中报头信息项包括用于处理核心处理分组的足够信息，而不从片外存储器访问有效载荷。 解复用器可以累积多个有效载荷，并且可以在累积有效载荷的阈值量时在单个存储器事务中将多个有效载荷写入到片外存储器。 处理器核心可以接收标题信息项，并且可以生成用于从片外存储器访问对应于标题信息项的多个有效载荷的单个描述符。 打包器可以至少基于片上信息并且不访问片外存储器来为每个有效载荷生成头部。 因此，主题系统提供有效的存储器带宽利用，例如。 至少通过减少片外存储器访问的数量。

公开(公告)号：US20150082368A1

公开(公告)日：2015-03-19

申请号：US14072696

申请日：2013-11-05

Applicant: BROADCOM CORPORATION

Inventor： Rajesh Shankarrao MAMIDWAR ,  Sanjeev SOOD ,  Flaviu Dorin TUREAN

IPC: H04N21/2343 ,  H04N21/4405 ,  H04N21/239

CPC classification number: H04N21/4405 ,  H04N21/234381 ,  H04N21/23608 ,  H04N21/2668 ,  H04N21/4344 ,  H04N21/43615 ,  H04N21/43853 ,  H04N21/440281 ,  H04N21/4408 ,  H04N21/4621 ,  H04N21/812

Abstract: A system for presentation timing based audio video (AV) stream processing may include a switch device, a first processor, and a second processor. The switch device may be configured to route AV traffic to the first processor for processing and non-AV traffic to the second processor for processing. The first processor may receive transport stream packets that include an audio stream and/or a video stream. The first processor may receive a request to modify presentation timing of the audio stream and/or video stream. The first processor may modify the transport stream packets and/or presentation timing parameters of the transport stream packets based at least in part on the received request. The first processor may provide the transport stream packets to an electronic device. In some implementations, the second processor may be unable to access the content of the transport stream packets in the clear, e.g. due to security considerations.

Abstract translation: 用于基于呈现定时的音频视频（AV）流处理的系统可以包括交换设备，第一处理器和第二处理器。 交换设备可以被配置为将AV业务路由到第一处理器以用于处理和非AV业务到第二处理器进行处理。 第一处理器可以接收包括音频流和/或视频流的传输流分组。 第一处理器可以接收修改音频流和/或视频流的呈现定时的请求。 第一处理器可以至少部分地基于所接收的请求修改传输流分组的传输流分组和/或呈现定时参数。 第一处理器可以向电子设备提供传输流分组。 在一些实现中，第二处理器可能不能以清楚的方式访问传输流分组的内容，例如， 由于安全考虑。

公开(公告)号：US20150063358A1

公开(公告)日：2015-03-05

申请号：US14042655

申请日：2013-09-30

Applicant: Broadcom Corporation

Inventor： David WU ,  Darren Duane NEUMAN ,  Flaviu Dorin TUREAN ,  Rajesh Shankarrao MAMIDWAR ,  Anand TONGLE ,  Sanjeev SOOD

IPC: H04L12/801 ,  H04L12/807

CPC classification number: H04L47/27

Abstract: A method of handling retransmission and memory consumption tracking of data packets includes storing data packets from different data channels in respective transmitter ring buffers allocated to the data channels when the data packets are not marked for retransmission, and facilitating retransmission of data packets from a specified ring buffer corresponding to a retransmission sequence number. The method also may include storing received data packets out of sequence in respective receiver ring buffers, marking a descriptor indicating a tail location of the stored data packets, and reclaiming memory space in the ring buffer based on the marked descriptor. The method may include storing a payload address associated with received data packets, marking a descriptor associated with the payload address to indicate the stored data packets have been consumed for processing, and reclaiming memory space when a register contains an indication of the stored payload address based on the marked descriptor.

Abstract translation: 一种处理数据分组的重传和存储器消耗跟踪的方法包括：当数据分组未被标记用于重传时，将分配给数据信道的各个发射机环形缓冲器中的不同数据信道的数据分组存储，并且便于从指定的振铃 对应于重传序列号的缓冲区。 该方法还可以包括将接收到的数据分组按顺序存储在相应的接收机环形缓冲器中，标记指示存储的数据分组的尾部位置的描述符，以及基于标记的描述符回收环形缓冲器中的存储器空间。 该方法可以包括存储与接收到的数据分组相关联的有效载荷地址，标记与有效载荷地址相关联的描述符以指示所存储的数据分组已被消耗用于处理，以及当寄存器包含基于所存储的有效载荷地址的指示时，回收存储器空间 在标记描述符上。