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18 条记录 (耗时 0.017 秒)

    Data/voice/fax advanced priority statistical multiplexer
    1.
    发明公开
    Data/voice/fax advanced priority statistical multiplexer 失效
    MultiplexerfürSignale mit unterchiedlichenPrioritäten

    公开(公告)号：EP0998092A2

    公开(公告)日：2000-05-03

    申请号：EP99200742.7

    申请日：1995-04-18

    申请人： Multi-Tech Systems Inc

    发明人： Arimilli, Harinarayana

    IPC分类号： H04L29/06 ,  H04M11/06 ,  H04L12/64 ,  H04M3/56 ,  H04J3/16

    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 allocates 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层的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，以分别发送到其他异步计算机终端和第二站点处的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。 通过语音或传真的第一个站点与第二个站点之间的通信对于用户是透明的。 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，并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。

    Modem with firmware upgrade feature
    3.
    发明公开
    Modem with firmware upgrade feature 失效
    固件软件 - 软件系统和Verfahren

    公开(公告)号：EP0632629A1

    公开(公告)日：1995-01-04

    申请号：EP94304741.5

    申请日：1994-06-29

    申请人： Multi-Tech Systems Inc

    发明人： Johnson, Greg ,  Weinzierl, David A. ,  Johnson, Richard D.

    IPC分类号： H04L29/06

    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 an in-circuit reprogrammable memory chip (3,17) 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. The modem system is portable, obtaining power from a standard 9 volt battery. Therefor, 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在线可重编程存储器芯片（3,17）。 两个控制程序控制更新的操作代码的重新编程。 其中一个控制程序设计用于制造和测试目的。 另一个控制程序允许远程重新编程来自远程位置（如客户站点）的更新的操作代码或参数。 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。

    Computer-based multifunction personal communications system
    4.
    发明公开
    Computer-based multifunction personal communications system 失效
    RechnergestütztespersönlichesKommunikationssystem mit mehrenen Funktionen。

    公开(公告)号：EP0630141A2

    公开(公告)日：1994-12-21

    申请号：EP93403164.2

    申请日：1993-12-23

    申请人： Multi-Tech Systems Inc

    发明人： Sharma, Raghu ,  Davis, Jeffrey P. ,  Gunn, Timothy D. ,  Li, Ping ,  Maitra, Sidhartha ,  Thanawala, Ashish ,  Young, Steve

    IPC分类号： H04M3/42

    CPC分类号： H04N1/00206 ,  G10L19/04 ,  H04L12/6418 ,  H04L27/3416 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/1069 ,  H04L65/602 ,  H04L65/80 ,  H04L69/04 ,  H04L2012/6424 ,  H04L2012/6427 ,  H04L2012/6459 ,  H04L2012/6475 ,  H04L2012/6481 ,  H04L2012/6491 ,  H04L2012/6494 ,  H04M1/247 ,  H04M1/2473 ,  H04M1/2477 ,  H04M1/253 ,  H04M1/57 ,  H04M1/6033 ,  H04M1/6505 ,  H04M1/663 ,  H04M3/002 ,  H04M3/42 ,  H04M3/436 ,  H04M3/5307 ,  H04M3/533 ,  H04M3/567 ,  H04M7/0027 ,  H04M7/0057 ,  H04M7/006 ,  H04M7/1295 ,  H04M11/06 ,  H04M11/064 ,  H04M11/068 ,  H04M2203/4509 ,  H04N1/00204 ,  Y10S379/908

    摘要： A personal communications system is described which includes components of software and hardware operating in conjunction with a personal computer. The user interface control software operates on a personal computer, preferably within the Microsoft Windows® environment. The software control system communicates with hardware components linked to the software through the personal computer serial communications port. The hardware components include telephone communication equipment, digital signal processors, and hardware to enable voice, fax and data communication with a remote site connected through a standard telephone line. The functions of the hardware components are controlled by control software operating within the hardware component and from the software components operating within the personal computer. The major functions of the system are a telephone function, a voice mail function, a fax manager function, a multi-media mail function, a show and tell function, a terminal function and an address book function. The telephone function allows the present system to operate, from the users perspective, as a conventional telephone using either hands-free, headset or handset operation. The telephone function is more sophisticated than a standard telephone in that the present system converts the voice into a digital signal which can be processed with echo cancellation, compressed, stored as digital data for later retrieval and transmitted as digital voice data concurrent with the transfer of digital information data.

    摘要翻译： 描述了个人通信系统，其包括与个人计算机一起操作的软件和硬件的组件。 用户界面控制软件在个人计算机上运行，​​最好在Microsoft Windows TM环境中运行。 软件控制系统通过个人计算机串行通信端口与链接到软件的硬件组件进行通信。 硬件组件包括电话通信设备，数字信号处理器和硬件，以便与通过标准电话线路连接的远程站点进行语音，传真和数据通信。 硬件组件的功能由在硬件组件内运行的控制软件和在个人计算机内运行的软件组件控制。 系统的主要功能是电话功能，语音邮件功能，传真管理功能，多媒体邮件功能，演示功能，终端功能和通讯录功能。 电话功能允许本系统从用户的角度来操作，使用免提，耳机或手机操作的常规电话。 电话功能比标准电话更复杂，因为本系统将语音转换为数字信号，该数字信号可以用回波消除，压缩，存储为数字数据进行处理以备以后检索，并作为数字语音数据传输 数字信息数据。

    Modem with firmware upgrade feature and system and method therefor
    9.
    发明授权
    Modem with firmware upgrade feature and system and method therefor 失效
    调制解调器固件升级选项，相应的系统和方法

    公开(公告)号：EP0632629B1

    公开(公告)日：2004-09-22

    申请号：EP94304741.5

    申请日：1994-06-29

    申请人： Multi-Tech Systems Inc

    发明人： Johnson, Greg ,  Weinzierl, David A. ,  Johnson, Richard D.

    IPC分类号： H04L29/06 ,  G06F9/445 ,  H04M11/06

    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 an in-circuit reprogrammable memory chip (3,17) 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. The modem system is portable, obtaining power from a standard 9 volt battery. Therefor, various power saving features are also incorporated into the modem system.