Data distribution system and methods for its use
    1.
    发明授权
    Data distribution system and methods for its use 失效
    数据分发系统及其使用方法

    公开(公告)号:US5594730A

    公开(公告)日:1997-01-14

    申请号:US196203

    申请日:1994-12-05

    摘要: A subscriber system (10), operating in combination with other similar subscriber systems, for collectively and swiftly distributing multiple copies of digital data to a large number of other subscriber systems. The subscriber system (10) receives digital data and stores it on a storage device (38). An autonomous digital data communication subsystem (42) then obtains a copy of the digital data directly from the storage device (30) and transmits that data to another subscriber system. The autonomous digital data communication subsystem (42) includes transceivers (72, 82, 102 or 104) for exchanging digital data with ISDN communication channels (46, 44a, 44b or 44c). The transceivers (72, 82, 102 or 104) receive the digital data from a random access memory ("RAM") (56) included in the autonomous digital data communication subsystem (42). A SCSI controller (52) exchanges the digital data between the RAM (56) and the storage device (38) of the subscriber system (10). A control signal processor controls the operation of the autonomous digital data communication subsystem (42) including its transceivers (72, 82, 102 and 104).

    摘要翻译: PCT No.PCT / US92 / 04944 Sec。 371日期1994年12月5日第 102(e)日期1994年12月5日PCT提交1992年6月11日PCT公布。 出版物WO93 / 26095 日期:1993年12月23日一种用户系统(10),与其他类似的用户系统结合操作,用于将数字数据的多个副本共同地迅速地分发给大量其他用户系统。 用户系统(10)接收数字数据并将其存储在存储设备(38)上。 然后,自主数字数据通信子系统(42)直接从存储装置(30)获得数字数据的副本,并将该数据发送到另一用户系统。 自主数字数据通信子系统(42)包括用于与ISDN通信信道(46,44a,44b或44c)交换数字数据的收发机(72,82,102或104)。 收发机(72,82,102或104)从包括在自主数字数据通信子系统(42)中的随机存取存储器(“RAM”)(56)接收数字数据。 SCSI控制器(52)在用户系统(10)的RAM(56)和存储设备(38)之间交换数字数据。 控制信号处理器控制包括其收发器(72,82,102和104)的自主数字数据通信子系统(42)的操作。

    Adaptive video subscriber system and methods for its use
    2.
    发明授权
    Adaptive video subscriber system and methods for its use 失效
    自适应视频用户系统及其使用方法

    公开(公告)号:US5644355A

    公开(公告)日:1997-07-01

    申请号:US140172

    申请日:1994-07-19

    摘要: The technical field of the invention generally concerns systems for receiving and transmitting compressed video and audio data. In particular, a subscriber system (10) includes a communication subsystem (12) to receive compressed data from and transmit compressed data to a ISDN primary access line (14) utilizing the "bandwidth on demand" feature of that communication channel. The communication subsystem (12) separates received compressed data into compressed video data and compressed audio data. Within the subscriber system (10), the compressed video data is transmitted to a programmable video data format conversion subsystem (28) for decompression and production of a visible image on a CRT (82). Similarly, compressed audio data is transmitted to a programmable audio data format conversion subsystem (192) for decompression and production of an audible sound on a speaker (262). Compressed data of visible images and audible sounds may also be obtained with and transmitted from the subscriber system (10).

    摘要翻译: PCT No.PCT / US92 / 01446 Sec。 371日期:1994年7月19日 102(e)日期1994年7月19日PCT提交1992年2月24日PCT公布。 出版物WO93 / 17526 日期1993年9月2日本发明的技术领域通常涉及用于接收和发送压缩视频和音频数据的系统。 具体地,订户系统(10)包括通信子系统(12),其利用该通信信道的“带宽带宽”特征从ISDN主接入线路(14)接收压缩数据并将压缩数据发送到ISDN主接入线路(14)。 通信子系统(12)将接收到的压缩数据分离为压缩视频数据和压缩音频数据。 在用户系统(10)内,压缩的视频数据被发送到可编程视频数据格式转换子系统(28),用于在CRT(82)上解压缩和产生可见图像。 类似地,压缩音频数据被发送到可编程音频数据格式转换子系统(192),用于解压缩和产生扬声器(262)上的可听见的声音。 也可以从用户系统(10)获得可视图像和可听见的声音的压缩数据并从用户系统(10)发送。

    ISDN audiovisual teleservices interface subsystem
    3.
    发明授权
    ISDN audiovisual teleservices interface subsystem 失效
    ISDN视听电话接口子系统

    公开(公告)号:US5566301A

    公开(公告)日:1996-10-15

    申请号:US140175

    申请日:1994-07-19

    摘要: The technical field of the invention generally concerns systems for audiovisual teleservices using digital telecommunication services such as Integrated Services Digital Network ("ISDN") communications. In the preferred embodiment, an interface subsystem (100) includes an ISDN interface circuit (130) for concurrently exchanging audiovisual information with an ISDN access. The interface subsystem (100) also includes a host computer interface circuit (144)for exchanging video, audio, high-speed, a low-speed data with a host digital computer. A computer program executed by a digital signal processing circuit (122) implements CCITT's H.221 and H.242 Recommendations for audiovisual teleservices, and provides a computer program at the application layer (44) of the OSI model that is executed by the host digital computer with an interface by which it can exchange video, audio, high-speed, and low-speed data with another compatible terminal using digital telecommunications.

    摘要翻译: PCT No.PCT / US92 / 09876 Sec。 371日期:1994年7月19日 102(e)日期1994年7月19日PCT 1991年11月16日PCT PCT。 公开号WO93 / 16430 日期1993年8月19日本发明的技术领域通常涉及使用诸如综合业务数字网(“ISDN”)通信的数字电信业务的视听电话服务系统。 在优选实施例中,接口子系统(100)包括用于同时交换视听信息与ISDN接入的ISDN接口电路(130)。 接口子系统(100)还包括用于与主机数字计算机交换视频,音频,高速,低速数据的主计算机接口电路(144)。 由数字信号处理电路(122)执行的计算机程序实现用于视听电话服务的CCITT的H.221和H.242建议书,并且在主机数字执行的OSI模型的应用层(44)处提供计算机程序 计算机具有可以使用数字电信与另一兼容终端交换视频,音频,高速和低速数据的接口。

    ISDN fax routing
    5.
    发明授权
    ISDN fax routing 失效
    ISDN传真路由

    公开(公告)号:US5657381A

    公开(公告)日:1997-08-12

    申请号:US458892

    申请日:1995-06-02

    摘要: Apparatus for efficiently routing facsimiles to and from a plurality of facsimile devices (62, 64, 66). At least one BRI line (16) is coupled to several ISDN terminals (21-28). At least one multiplexer (31, 32) is coupled to the outputs of the terminals (21-28). A fax server (50) is coupled to the outputs of the multiplexers (31, 32), typically via fax process computers (41, 42). Coupled to the fax server (50) are a plurality of facsimile devices (62, 64, 66), each having a unique fax number. A given facsimile device (62, 64, 66) may send or receive more than one facsimile simultaneously by means of programming its fax number into more than one terminal (21-28) address. A terminal (21-28) may be coupled to more than one multiplexer (31, 32). Multiple BRI lines (16) may be used. The fax server (50) preferably contains an incoming generic module (51) that interacts with all incoming facsimiles, an incoming specific module (53) that interacts with facsimiles destined for selected ones of the facsimile devices (62, 64, 66), an outgoing generic module (52) that interacts with all outgoing facsimiles, and an outgoing specific module (54) that interacts with outgoing facsimiles that emanate from selected ones of the facsimile devices (62, 64, 66).

    摘要翻译: 用于有效地将传真机路由到多个传真设备(62,64,66)的设备。 至少一条BRI线路(16)耦合到多个ISDN终端(21-28)。 至少一个多路复用器(31,32)耦合到端子(21-28)的输出端。 传真服务器(50)通常通过传真处理计算机(41,42)耦合到多路复用器(31,32)的输出端。 耦合到传真服务器(50)的是多个传真设备(62,64,66),每个传真设备具有唯一的传真号码。 给定的传真设备(62,64,66)可以通过将其传真号码编程到多于一个终端(21-28)地址中来同时发送或接收多于一个传真。 终端(21-28)可以耦合到多于一个的多路复用器(31,32)。 可以使用多个BRI线路(16)。 传真服务器(50)优选地包含与所有进入的传真机相互作用的输入通用模块(51),与传真机中传送的传真设备(62,64,66)中选定的传真机传真机相互作用的输入特定模块(53) 与所有输出传真机相互作用的输出通用模块(52)以及与从所述传真设备(62,64,66)中的选定传真机发出的传出传真机相互作用的输出特定模块(54)。