公开(公告)号：US07876745B1

公开(公告)日：2011-01-25

申请号：US10692233

申请日：2003-10-23

Applicant: Mark Stewart ,  Graeme Gibbs ,  Dominic Walker

Inventor： Mark Stewart ,  Graeme Gibbs ,  Dominic Walker

IPC: H04L12/66 ,  H04L12/28

CPC classification number: H04M7/006 ,  H04L65/103 ,  H04M7/0072 ,  H04W88/181

Abstract: A packet-based network carries a stream of voice band data, such as PCM voice data, which can include tandem free operation (TFO) information. Voice data is usually subject to processing, such as compression, at an ingress entity. The ingress entity determines whether the stream of voice data contain tandem free operation (TFO) information and, if TFO information is present, sends the TFO information across the packet network without subjecting it to processing. This preserves the integrity of the TFO information. TFO information can be carried by an unprocessed channel having a bandwidth of less than 64 kbit/s. TFO information is reinserted at an egress entity of the packet network.

Abstract translation: 基于分组的网络携带诸如PCM语音数据的语音频带数据流，其可以包括串联自由操作（TFO）信息。 语音数据通常在入口实体处理，如压缩。 入口实体确定语音数据流是否包含串联自由操作（TFO）信息，并且如果存在TFO信息，则通过分组网络发送TFO信息而不对其进行处理。 这保留了TFO信息的完整性。 TFO信息可以由带宽小于64kbit / s的未处理信道承载。 TFO信息被重新插入分组网络的出口实体。

公开(公告)号：US07907708B2

公开(公告)日：2011-03-15

申请号：US10164524

申请日：2002-06-06

Applicant: Dominic Walker ,  Graeme Gibbs

Inventor： Dominic Walker ,  Graeme Gibbs

IPC: H04M11/00

CPC classification number: H04N1/32704 ,  H04M7/1245 ,  H04M2203/2066 ,  H04M2203/657 ,  H04N1/00209 ,  H04N1/32708 ,  H04N1/32719 ,  H04N1/32797

Abstract: In a communications network, voice and facsimile calls are established between first and second and second terminals via first and second media gateways in a communications network. Each gateway is capable of autonomous transitioning between a voice over IP (VoIP) call mode and a facsimile over IP (FoIP) call mode. A bearer path for the call is established via a media gateway controller. During call setup, the media gateways exchange confirmation of each gateway's capability to perform autonomous transitioning between VoIP and FoIP call modes. The call is established as a VoIP call, and, on a determination by the media gateways that a facsimile call is required, each media gateway autonomously transitions between its VoIP and FoIP call modes without the intervention of the media gateway controller.

Abstract translation: 在通信网络中，通信网络中的第一和第二媒体网关在第一和第二和第二终端之间建立语音和传真呼叫。 每个网关能够在IP语音（VoIP）呼叫模式和IP传真（FoIP）呼叫模式之间进行自主转换。 通过媒体网关控制器建立呼叫的承载路径。 在呼叫建立期间，媒体网关交换每个网关对VoIP和FoIP呼叫模式之间进行自主转换的能力的确认。 该呼叫被建立为VoIP呼叫，并且在媒体网关确定需要传真呼叫的情况下，每个媒体网关在其VoIP和FoIP呼叫模式之间自主地转换，而无需介入媒体网关控制器。

公开(公告)号：US5889765A

公开(公告)日：1999-03-30

申请号：US798773

申请日：1997-02-11

Applicant: Graeme Gibbs

Inventor： Graeme Gibbs

IPC: H04J3/06 ,  H04J3/16 ,  H04L12/70 ,  H04N7/173 ,  H04Q11/04 ,  H04L5/14

CPC classification number: H04J3/0682 ,  H04J3/1694 ,  H04N7/17309 ,  H04Q11/0478 ,  H04J2203/0012 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5615 ,  H04L2012/5616

Abstract: A bi-directional communications network is disclosed, and in particular a TDM/TDMA protocol for the shared coax medium downstream/upstream resource. This protocol provides a very efficient technique for resource sharing in the access network of HFC systems. A method of communicating information between a central station and a plurality of terminals in a distribution network, is also disclosed. This invention allows the ranging of the terminals of unknown distance from the central station within an upstream ATM cell slot dynamically allocated for the marshalling process by the central station.

Abstract translation: 公开了一种双向通信网络，特别是用于共享同轴介质下游/上游资源的TDM / TDMA协议。 该协议为HFC系统接入网络中的资源共享提供了非常有效的技术。 还公开了一种在分发网络中的中心站和多个终端之间传送信息的方法。 本发明允许在由中心站动态分配用于编组过程的上游ATM信元时隙内对来自中心站的未知距离的终端进行测距。

公开(公告)号：US06683877B1

公开(公告)日：2004-01-27

申请号：US09469141

申请日：1999-12-21

Applicant: Graeme Gibbs ,  Rade Gvodanovic

Inventor： Graeme Gibbs ,  Rade Gvodanovic

IPC: H04L1228

CPC classification number: H04L12/5601 ,  H04L12/28 ,  H04L29/06 ,  H04L67/32 ,  H04L69/24 ,  H04L69/329 ,  H04L2012/5656 ,  H04L2012/5671

Abstract: Voice traffic is transported between first and second media gateways over a virtual channel connection incorporated in a virtual trunk group in a packet or cell based network The virtual channel connection (VCC) is agreed between the gateways via a mutual exchange of session descriptors. Typically, the VCC is selected or created by a terminating gateway, and this information is relayed in a returned session descriptor to an originating gateway so that the connection can then be established. The session descriptor may also be used to carry information whereby the gateways can negotiate an adaptation layer and/or a connection fabric to be used.

Abstract translation: 语音流量在包含在分组或基于小区的网络中的虚拟中继群中的虚拟信道连接上在第一和第二媒体网关之间传送。虚拟信道连接（VCC）通过会话描述符的相互交换在网关之间一致。 通常，VCC由终止网关选择或创建，并且该信息在返回的会话描述符中中继到始发网关，从而可以建立连接。 会话描述符还可以用于携带信息，由此网关可以协商要使用的适配层和/或连接结构。

公开(公告)号：US5867500A

公开(公告)日：1999-02-02

申请号：US799496

申请日：1997-02-12

Applicant: Graham Ainsley Dolman ,  Graeme Gibbs ,  Gary Halfyard ,  Andrew John Booth

Inventor： Graham Ainsley Dolman ,  Graeme Gibbs ,  Gary Halfyard ,  Andrew John Booth

IPC: H04L12/70 ,  H04Q11/04 ,  H04J3/13

CPC classification number: H04Q11/0478 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5632

Abstract: In an arrangement for transmitting traffic in asynchronous transfer mode (ATM) cells in downstream and upstream frames between an out station and a base station, upstream traffic cells are queued in each outstation in sequential order for subsequent transmission in upstream frames to the base station. Each outstation sends requests for allocation of timeslots to the base station, each said allocation request being transmitted to the base station in a respective time slot of a said upstream frame. The base station includes means for performing a periodic ranging measurement with each outstation whereby to determine a corresponding timing offset between the base station and that outstation and for communicating that timing offset to the outstation. Each outstation controls the timing of its cell allocation requests such that the cell allocation requests received by the base station in each upstream frame are each in a respective predetermined time slot of that frame. This avoids the need for a preamble sequence to be provided with each request.

Abstract translation: 在用于在外站和基站之间的下游和上游帧中的异步传输模式（ATM）小区中传输业务的布置中，上行业务单元按顺序排列在每个外站中，以便在到基站的上行帧中进行随后的传输。 每个外站向基站发送分配时隙的请求，每个所述分配请求在所述上游帧的相应时隙中发送到基站。 基站包括用于与每个外站执行周期性测距测量的装置，从而确定基站与该外站之间的对应的定时偏移，并用于将该定时偏移传送到该外站。 每个外站控制其小区分配请求的定时，使得基站在每个上行帧中接收的小区分配请求各自处于该帧的相应预定时隙。 这避免了为每个请求提供前导序列的需要。