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1. 发明公开

EP1258102A2 SYSTEM AND METHOD FOR SUPPRESSING SILENCE IN VOICE TRAFFIC OVER AN ASYNCHRONOUS COMMUNICATION MEDIUM 有权
标题翻译：过程对于语言暂停期间的语音通信通过异步通信介质移除
公开(公告)号：EP1258102A2
公开(公告)日：2002-11-20
申请号：EP01918168.4
申请日：2001-02-15
申请人： Broadcom Corporation
发明人： GUMMALLA, Ajay Chandra V. , SALA, Dolors
IPC分类号： H04L12/00
CPC分类号： H04N7/17309 , H04L12/2801 , H04L12/2856 , H04L12/2861 , H04L12/2872 , H04L12/6418 , H04L29/06 , H04L29/06027 , H04L41/0896 , H04L41/5087 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/2416 , H04L47/2433 , H04L47/35 , H04L47/50 , H04L47/6215 , H04L47/623 , H04L47/70 , H04L47/788 , H04L47/801 , H04L47/805 , H04L65/607 , H04L65/80 , H04L67/104 , H04L69/08 , H04L69/22 , H04L2012/6481 , H04L2012/6494 , H04M7/006 , H04N21/2385 , H04N21/42676 , H04N21/437 , H04N21/4396 , H04N21/44209 , H04N21/4788 , H04N21/6118 , H04N21/6168 , H04N21/6377 , H04N21/64707
摘要： A method and system for increasing the efficiency of providing bandwidth for voice traffic to a data provider via an asynchronous communication medium are provided. This is generally accomplished by not transmitting any data during the silence periods and playing out background noise (i.e., comfort noise) at the other end, to obtain significant bandwidth savings.

2. 发明授权

EP1228598B1 A METHOD AND APPARATUS FOR THE DETECTION AND CLASSIFICATION OF COLLISIONS ON A SHARED ACCESS RF NETWORK 有权
标题翻译：方法和装置检测和冲突进行分类对比与通常的触摸RF-NET
公开(公告)号：EP1228598B1
公开(公告)日：2007-09-26
申请号：EP00979137.7
申请日：2000-11-02
申请人： Broadcom Corporation
发明人： HOWARD, Daniel, H. , SALA, Dolors
IPC分类号： H04L12/00
CPC分类号： H04L12/2801 , H04L69/323 , H04W24/00
摘要： The present invention is directed toward a method and apparatus for detecting collisions on a shared access network. In accordance with the present invention, two or more RF modulated signals having a plurality of different phase states are transmitted to a central controller, wherein two or more of the transmitted signals collide at the central controller. The collision detection system then determines a characteristic of the collision signal, such as the absolute value of the peak amplitude of the collision signal. The collision detection system then compares the characteristic with a plurality of thresholds and determines the number of RF modulated signals that collided as a function of the comparison. The method for detecting collisions may further include monitoring a plurality of collision events to determine a characteristic, such as the absolute value of the peak amplitude of the collision signal, of each of the collision events. The collision detection system then determines the thresholds in accordance with the characteristics of the monitored collision events. The monitored collision events may be simulated or the result of actual laboratory experimentation.

3. 发明公开

EP1266526A2 METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR SCHEDULING UPSTREAM COMMUNICATIONS 有权
标题翻译：过程在长达通信规划
公开(公告)号：EP1266526A2
公开(公告)日：2002-12-18
申请号：EP01910716.8
申请日：2001-02-15
申请人： Broadcom Corporation
发明人： SALA, Dolors , GUMMALLA, Ajay Chandra V. , LIMB, John O. , PROTUS, Richard J.
IPC分类号： H04N7/24
CPC分类号： H04N7/17309 , H04L12/2801 , H04L12/2856 , H04L12/2861 , H04L12/2872 , H04L12/6418 , H04L29/06 , H04L29/06027 , H04L41/0896 , H04L41/5087 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/2416 , H04L47/2433 , H04L47/35 , H04L47/50 , H04L47/6215 , H04L47/623 , H04L47/70 , H04L47/788 , H04L47/801 , H04L47/805 , H04L65/607 , H04L65/80 , H04L67/104 , H04L69/08 , H04L69/22 , H04L2012/6481 , H04L2012/6494 , H04M7/006 , H04N21/2385 , H04N21/42676 , H04N21/437 , H04N21/4396 , H04N21/44209 , H04N21/4788 , H04N21/6118 , H04N21/6168 , H04N21/6377 , H04N21/64707
摘要： A system and method is provided for scheduling transmissions from a plurality of services operating over a widely distributed communications network. A headend communications device (such as a cable modem termination system) arbitrates bandwidth among a plurality of cable modems configurable for bi-directional communications. The headend grants a bandwidth region to a specified cable modem or assigns contention regions for a group of cable modems. Each cable modem contains a local scheduler that sends requests for bandwidth according to local policies or rules. Upon receipt of a grant from the headend, the local scheduler selects packets to be transmitted to best serve the needs of the services associated with the cable modem. Accordingly, a service requesting bandwidth may not be the service utilizing the grant corresponding to bandwidth request. Nonetheless, the local scheduler manages bandwidth allocation among its local services such that all requesting services eventually receive bandwidth.

4. 发明授权

EP1360813B1 Generalized packet header suppression mechanism 有权
标题翻译：通用包头抑制机制
公开(公告)号：EP1360813B1
公开(公告)日：2008-10-22
申请号：EP02703132.7
申请日：2002-01-17
申请人： Broadcom Corporation
发明人： SALA, Dolors , GUMMALA, Ajay, Chandra, V.
IPC分类号： H04L29/06 , H04L12/18 , H03M7/30
CPC分类号： H04L69/04 , G06F17/246 , G06F17/30592 , H03M7/30 , H04L12/2801 , H04L69/22 , H04W28/06
摘要： A system and method for a generalized packet header suppression mechanism is described. This mechanism is implemented via a descriptor table. An exact copy of the descriptor table is stored in both the sender and receiver of packets via a communication medium. Entries in the descriptor table provide the information necessary to both suppress and expand the headers of well-known packets. The sender of the packet uses the descriptor table to suppress the packet header prior to transmitting the packet over the communication medium. When the packet reaches the receiver, the receiver uses the descriptor table to expand or reconstruct the packet header. The suppression mechanism allows the complete suppression of the header of a packet (as opposed to the traditional payload suppression) by a shorter message descriptor. Thus, this mechanism allows a common framework to support several protocols in the same communication medium.
摘要翻译：描述了用于通用分组报头抑制机制的系统和方法。该机制通过描述符表来实现。描述符表的精确副本通过通信介质存储在数据包的发送者和接收者中。描述符表中的条目提供了抑制和扩展已知数据包的头部所必需的信息。分组的发送者使用描述符表来在通过通信介质传送分组之前抑制分组报头。当数据包到达接收器时，接收器使用描述符表来扩展或重构数据包标题。该抑制机制允许通过较短的消息描述符来完全抑制分组的报头（而不是传统的有效载荷抑制）。因此，这种机制允许通用框架在同一通信介质中支持多种协议。

5. 发明授权

EP1243115B1 METHOD FOR OPENING A PROPRIETARY MAC PROTOCOL IN A NON-DOCSIS MODEM COMPATIBLY WITH A DOCSIS MODEM 有权
标题翻译：过程要打开在非DOCSIS调制解调器的专用MAC协议与DOCSIS调制解调器兼容
公开(公告)号：EP1243115B1
公开(公告)日：2005-10-26
申请号：EP00990339.4
申请日：2000-12-26
申请人： Broadcom Corporation
发明人： LIMB, John, O. , SALA, Dolors , GUMMALLA, Ajay, Chandra, V. , BUNN, Fred
IPC分类号： H04L29/06 , H04J3/16 , H04L12/28
CPC分类号： H04L12/2801 , H04L29/06 , H04L69/08 , H04L69/18 , H04W4/06 , H04W72/0446 , H04W88/10
摘要： A two way communication system is adapted for compatible inter-operation of a plurality of devices operating in accordance with a plurality of protocols. The communication system includes a first group of one or more remote devices that interface with a local host in accordance with a first protocol and a second group of one or more remote devices that interface with the local host in accordance with a second protocol. The local host includes a protocol processor that identifies transmissions from the first and second groups of remote devices and routes transmissions from the first group of remote devices to a first processor operating in accordance with the first protocol and also routes transmissions from the second group of remote devices to a second processor operating in accordance with the second protocol.

6. 发明公开

EP1466444A2 FILTERING AND FORWARDING FRAMES WITHIN AN OPTICAL NETWORK 有权
标题翻译：滤波器和帧的传输在光网络
公开(公告)号：EP1466444A2
公开(公告)日：2004-10-13
申请号：EP02795849.5
申请日：2002-12-13
申请人： Broadcom Corporation
发明人： SALA, Dolors , LIMB, John O. , GUMMALLA, Ajay Chandra V.
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04Q11/0067 , H04Q11/0071 , H04Q2011/0047 , H04Q2011/0064
摘要： An optical line terminal (OLT) (102) monitors and controls communications with plurality of optical nodes (ONs) (106) within a passive optical network (PON) (100). A tagging mechanism is implemented to identify an origin ON that introduces a frame into the PON segment linking the origin ON with the OLT (102). The origin ON produces a PON tag to associate its identifier to the frame. The PON tag facilitates filtering and forwarding operations, and enables the physical layer interface to the PON segment to emulate a point-to-point and/or shared communications link. The PON tag allows a MAC control layer to create the virtual ports to traffic incoming and outgoing optical signals, and supply the virtual ports to a forwarding entity for frame filtering and forwarding. The PON tag also allows an OLT (102) and ON (106) to track the origination and/or destination of a frame with the PON segment, and accept pr reject the frame based on the contents of the PON tag.

7. 发明公开

EP1354450A2 SYSTEM AND METHOD FOR A GUARANTEED DELAY JITTER BOUND WHEN SCHEDULING BANDWIDTH GRANTS FOR VOICE CALLS VIA A CABLE NETWORK 审中-公开
标题翻译：多延迟颤抖的边界带宽访问授权VOICE在保修方法和系统调用有线网络
公开(公告)号：EP1354450A2
公开(公告)日：2003-10-22
申请号：EP02705795.9
申请日：2002-01-17
申请人： Broadcom Corporation
发明人： GUMMALLA, Ajay, Chandra, V. , SALA, Dolors
IPC分类号： H04L12/64 , H04L12/28
CPC分类号： H04N7/17309 , H04J3/0632 , H04L12/2801 , H04L12/2874 , H04L12/6418 , H04L29/06 , H04L29/06027 , H04L41/0896 , H04L41/5019 , H04L41/5087 , H04L47/10 , H04L47/15 , H04L47/2416 , H04L47/2433 , H04L47/283 , H04L47/35 , H04L47/50 , H04L47/56 , H04L47/6215 , H04L47/70 , H04L47/788 , H04L47/801 , H04L47/805 , H04L47/822 , H04L47/824 , H04L47/827 , H04L65/80 , H04L69/08 , H04L69/22 , H04L2012/6481 , H04L2012/6494 , H04M7/006 , H04N21/2385 , H04N21/42676 , H04N21/437 , H04N21/4396 , H04N21/44209 , H04N21/4788 , H04N21/6118 , H04N21/6168 , H04N21/6377 , H04N21/64707
摘要： A system and method for guaranteeing a delay jitter bound when scheduling bandwidth grants for voice calls via a communication medium is provided. The method includes the steps of: determining the delay jitter bound, based on the determined delay jitter bound, dividing a packetization frame period into phases; assigning a voice call to one of the phases; and scheduling a bandwidth grant to the voice call during the assigned phase, thereby guaranteeing the delay jitter bound. The system includes a scheduler, where the scheduler determines the delay jitter bound, divides a packetization frame period into phases based on the determined delay jitter bound, assigns a voice call to one of the phases, and schedules a bandwidth grant to the voice call during the assigned phase, thereby guaranteeing the delay jitter bound. A dejitter buffer implements a way to provide zero jitter service, even though the packet transmission on the cable network has jitter, by delaying the packet and thus converting jitter into delay.
摘要翻译：一种用于保障结合当调度带宽准许针对语音的延迟抖动系统及方法调用通过提供一种通信平台。该方法包括如下步骤：确定采矿延迟抖动约束; 基于结合的确定性开采延迟抖动，将帧分组化周期为阶段; 分配语音呼叫，相之一; 和调度期间所分配的相位带宽准许到语音呼叫，从而保证结合的延迟抖动。该系统包括一个调度器，其中，所述调度器确定的地雷延迟抖动约束，把一个分组帧期间分割基于绑定的确定性开采延迟抖动相位，分配的语音呼叫的相之一，并且调度期间带宽准许到语音呼叫指配的相位，从而保证结合的延迟抖动。甲去抖缓冲器实现方式通过延迟分组并由此转换成抖动延迟，以提供零抖动的服务，即使在电缆网络上的分组传输具有抖动。

8. 发明授权

EP1257514B1 SYSTEM AND METHOD FOR COMBINING DATA BANDWIDTH REQUESTS BY A DATA PROVIDER FOR TRANSMISSION OF DATA OVER AN ASYNCHRONOUS COMMUNICATION MEDIUM 有权
标题翻译：系统和方法相结合的数据提供者的数据传输数据的带宽需求，通过异步通信介质
公开(公告)号：EP1257514B1
公开(公告)日：2008-12-24
申请号：EP01910717.6
申请日：2001-02-15
申请人： Broadcom Corporation
发明人： GUMMALLA, Ajay, Chandra, V. , SALA, Dolors
IPC分类号： C06F1/00
CPC分类号： H04N7/17309 , H04L12/2801 , H04L12/2856 , H04L12/2861 , H04L12/2872 , H04L12/6418 , H04L29/06 , H04L29/06027 , H04L41/0896 , H04L41/5087 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/2416 , H04L47/2433 , H04L47/35 , H04L47/50 , H04L47/6215 , H04L47/623 , H04L47/70 , H04L47/788 , H04L47/801 , H04L47/805 , H04L65/607 , H04L65/80 , H04L67/104 , H04L69/08 , H04L69/22 , H04L2012/6481 , H04L2012/6494 , H04M7/006 , H04N21/2385 , H04N21/42676 , H04N21/437 , H04N21/4396 , H04N21/44209 , H04N21/4788 , H04N21/6118 , H04N21/6168 , H04N21/6377 , H04N21/64707
摘要： A method and system for combining requests for data bandwidth by a data provider for transmission of data over an asynchronous communication medium is provided. A headend receives one or more bandwidths requests from one or more cable modems via upstream communication. A scheduler then combines one or more bandwidths requests from the same cable modem to create a single data burst bandwidth. The headend then grants the data burst bandwidth to the appropriate cable modem via downstream communication.

9. 发明公开

EP1360813A2 GENERALIZED PACKET HEADER SUPPRESSION MECHANISM 有权
标题翻译：广义分组头标抑制机制
公开(公告)号：EP1360813A2
公开(公告)日：2003-11-12
申请号：EP02703132.7
申请日：2002-01-17
申请人： Broadcom Corporation
发明人： SALA, Dolors , GUMMALA, Ajay, Chandra, V.
IPC分类号： H04L29/06 , H04L12/18 , H03M7/30
CPC分类号： H04L69/04 , G06F17/246 , G06F17/30592 , H03M7/30 , H04L12/2801 , H04L69/22 , H04W28/06
摘要： A system and method for a generalized packet header suppression mechanism is described. This mechanism is implemented via a descriptor table. An exact copy of the descriptor table is stored in both the sender and receiver of packets via a communication medium. Entries in the descriptor table provide the information necessary to both suppress and expand the headers of well-known packets. The sender of the packet uses the descriptor table to suppress the packet header prior to transmitting the packet over the communication medium. When the packet reaches the receiver, the receiver uses the descriptor table to expand or reconstruct the packet header. The suppression mechanism allows the complete suppression of the header of a packet (as opposed to the traditional payload suppression) by a shorter message descriptor. Thus, this mechanism allows a common framework to support several protocols in the same communication medium.
摘要翻译：描述了用于通用分组报头抑制机制的系统和方法。该机制通过描述符表来实现。描述符表的精确副本通过通信介质存储在数据包的发送者和接收者中。描述符表中的条目提供了抑制和扩展已知数据包的头部所必需的信息。分组的发送者使用描述符表来在通过通信介质传送分组之前抑制分组报头。当数据包到达接收器时，接收器使用描述符表来扩展或重构数据包标题。该抑制机制允许通过较短的消息描述符来完全抑制分组的报头（而不是传统的有效载荷抑制）。因此，这种机制允许通用框架在同一通信介质中支持多种协议。

10. 发明公开

EP1257514A2 SYSTEM AND METHOD FOR COMBINING DATA BANDWIDTH REQUESTS BY A DATA PROVIDER FOR TRANSMISSION OF DATA OVER AN ASYNCHRONOUS COMMUNICATION MEDIUM 有权
标题翻译：系统和方法相结合的数据提供者的数据传输数据的带宽需求，通过异步通信介质
公开(公告)号：EP1257514A2
公开(公告)日：2002-11-20
申请号：EP01910717.6
申请日：2001-02-15
申请人： Broadcom Corporation
发明人： GUMMALLA, Ajay, Chandra, V. , SALA, Dolors
IPC分类号： C06F1/00
CPC分类号： H04N7/17309 , H04L12/2801 , H04L12/2856 , H04L12/2861 , H04L12/2872 , H04L12/6418 , H04L29/06 , H04L29/06027 , H04L41/0896 , H04L41/5087 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/2416 , H04L47/2433 , H04L47/35 , H04L47/50 , H04L47/6215 , H04L47/623 , H04L47/70 , H04L47/788 , H04L47/801 , H04L47/805 , H04L65/607 , H04L65/80 , H04L67/104 , H04L69/08 , H04L69/22 , H04L2012/6481 , H04L2012/6494 , H04M7/006 , H04N21/2385 , H04N21/42676 , H04N21/437 , H04N21/4396 , H04N21/44209 , H04N21/4788 , H04N21/6118 , H04N21/6168 , H04N21/6377 , H04N21/64707
摘要： A method and system for combining requests for data bandwidth by a data provider for transmission of data over an asynchronous communication medium is provided. A headend receives one or more bandwidths requests from one or more cable modems via upstream communication. A scheduler then combines one or more bandwidths requests from the same cable modem to create a single data burst bandwidth. The headend then grants the data burst bandwidth to the appropriate cable modem via downstream communication.
摘要翻译：电缆调制解调器的系统和方法提供了一种用于数据的雅舞蹈与专门的数据传输协议而利用常规的电缆调制解调器终端系统（CMTS）设备的传输和处理。在与本发明雅舞蹈电缆调制解调器系统包括电缆调制解调器没有提供用于数据分组的在雅舞蹈用的专有协议的修改和修改后的数据分组的寻址到一个头端服务器。头端服务器angepasst到用于传输的数据分组重建到其它本地电缆调制解调器或到分组交换网络。在另外的实施例中，CMTS本身，而不是头端服务器进行操作以重构数据包。

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