公开(公告)号：US20020114384A1

公开(公告)日：2002-08-22

申请号：US09975529

申请日：2001-10-10

申请人： Multi-Tech Systems, Inc.

发明人： Craig A. Nelson ,  Harinarayana Arimilli ,  Richard David Johnson

IPC分类号： H04B001/38

CPC分类号： G06F8/65 ,  G06F19/00 ,  H04L29/06 ,  H04M11/06 ,  Y02D10/42

摘要： Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes a memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of updated operating code. One of the control programs is designed for manufacturing and testing purposes. The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site. A user can thus remotely upgrade system firmware with updates, bug fixes, enhancements or other new releases of system operating code by downloading the update over a phone line to a host PC and reprogramming the memory chip of the modem over the serial port from the host PC. The user can also remotely upgrade the modem system firmware by directly programming the memory chip of the modem without the assistance of the host PC. The modem system is portable, obtaining power from a standard 9 volt battery. Therefore, various power saving features are also incorporated into the modem system.

摘要翻译： 更新的操作代码和参数可以重新编程到调制解调器系统中，无需拆卸调制解调器硬件。 调制解调器系统包括其中存储操作码和参数的存储器芯片。 两个控制程序控制更新的操作代码的重新编程。 其中一个控制程序是为制造和测试目的而设计的。 另一个控制程序允许从远程位置（如客户站点）远程重新编程更新的操作代码或参数。 因此，用户可以通过将电话线上的更新下载到主机PC并通过串行端口从主机重新编程调制解调器的存储器芯片，从而远程升级系统固件，具有更新，错误修复，增强或其他新版本的系统操作代码 电脑。 用户还可以通过在主机PC的协助下直接编程调制解调器的存储器芯片来远程升级调制解调器系统固件。 调制解调器系统是便携式的，从标准的9伏电池获得电力。 因此，各种省电功能也被并入到调制解调器系统中。

公开(公告)号：US20030152105A1

公开(公告)日：2003-08-14

申请号：US10272463

申请日：2002-10-15

申请人： Multi-Tech Systems, Inc.

发明人： Harinarayana Arimilli

IPC分类号： H04J003/16 ,  H04J003/22

CPC分类号： H04N1/00281 ,  H04J3/1688 ,  H04J3/247 ,  H04L29/06 ,  H04L2012/6427 ,  H04L2012/6459 ,  H04L2012/6462 ,  H04L2012/6464 ,  H04L2012/6486 ,  H04L2012/6494 ,  H04M1/253 ,  H04M11/064 ,  H04N1/00302 ,  H04N1/00312 ,  Y10S370/916

摘要： A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of an advanced priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites. Communication between the first site by voice or facsimile and the second site is transparent to the users. The multiplexer efficiently allocated the bandwidth of the composite link by detecting silence periods in the voice signals and suppressing the sending of the voice information to preserve bandwidth. An advanced priority statistical multiplexer is also described which dynamically allocates composite link bandwidth to both time-sensitive and non-time-sensitive data to maximize data throughout efficiency and quality while simultaneously reducing multiplexer processing overhead

摘要翻译： 描述了一种数据复用网络，其将多个异步数据信道与表示压缩语音信号和/或传真信号的异步数据流复用到单个同步数据分组流上。 然后，使用具有高级优先级统计复用算法的覆盖的经修改的高级同步数据链路控制协议，单个同步数据分组流由高速统计多路复用器通过复合链路发送到第二站点。 异步数据信道和压缩语音信道和/或传真信号被解复用和重构，以分别发送到第二站点的其他异步计算机终端和标准电话或传真模拟端口。 还提供PBX中继接口，以便PBX共享站点之间的复合链路。 第一站点之间通过语音或传真与第二站点之间的通信对于用户来说是透明的。 复用器通过检测语音信号中的静音时段，有效地分配复合链路的带宽，抑制语音信息的发送以保持带宽。 还描述了一种高级优先级统计多路复用器，其将复合链路带宽动态地分配给时间敏感和非时间敏感数据，以在效率和质量上最大化数据，同时降低多路复用器处理开销