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    • 11. 发明授权
    • System and method for transmitting aural information between a computer
and telephone equipment
    • 用于在计算机和电话设备之间传输听觉信息的系统和方法
    • US5940479A
    • 1999-08-17
    • US724655
    • 1996-10-01
    • Kenneth R. GuyJaswant R. JainIshwar V. JasujaMichael W. JohnsonAlbert JuandySimon S. LamAnthony Y. LeeDavid MisunasJacques A. Roth
    • Kenneth R. GuyJaswant R. JainIshwar V. JasujaMichael W. JohnsonAlbert JuandySimon S. LamAnthony Y. LeeDavid MisunasJacques A. Roth
    • H03M13/00H04L29/06H04M7/00H04M11/00H04J3/12H04L12/28
    • H04L65/605H03M13/00H04L29/06027H04L65/103H04L65/104H04L65/1069H04M7/1205
    • A system and method for transmitting aural signals across a wide area network (WAN) from a local phone coupled to a computer, e.g., a PC-phone, to a remote phone coupled to a KTS, PBX, or PSTN, for example. This capability is provided by the gateway unit of the present invention. The system of the present invention is quickly installed in a server or a personal computer coupled to a local area network. The system is connected to one or more of a PSTN, a private branch exchange, a key telephone system, a telephone, a facsimile machine, and a modem. In the case of voice transmission, a gateway unit translates received telephony signal into a format that is compatible with the telephone system or equipment connected thereto. The present invention can provide a voice quality that approaches, equals, or exceeds the voice quality of conventional telephone switched networks. This high voice quality is achieved by utilizing a high quality voice digitization algorithm on both the PC-phone and the gateway, by ensuring a low maximum network delay between the PC-phone and the gateway, by permitting a dynamic compensation for variations in network delay, and by utilizing a forward error correction technique for transmission over WANs that can recreate lost or delayed signals in a manner that recreates the signal so the lost signal is typically not detectable by a user.
    • 例如,用于从耦合到诸如PC电话的计算机的本地电话到广域网(WAN)发送听觉信号到例如耦合到KTS,PBX或PSTN的远程电话的系统和方法。 该能力由本发明的网关单元提供。 本发明的系统被快速地安装在耦合到局域网的服务器或个人计算机中。 该系统连接到PSTN,私人交换机,密钥电话系统,电话机,传真机和调制解调器中的一个或多个。 在语音传输的情况下,网关单元将接收到的电话信号转换成与电话系统或与其连接的设备兼容的格式。 本发明可以提供接近,等于或超过常规电话交换网络的语音质量的语音质量。 通过在PC电话和网关上使用高质量的语音数字化算法,通过确保PC电话和网关之间的最小网络延迟,通过允许动态补偿网络延迟的变化来实现这种高的语音质量 并且通过利用前向纠错技术在广域网上进行传输,该技术可以以重建信号的方式再现丢失或延迟的信号,使得丢失的信号通常不被用户检测到。
    • 13. 发明授权
    • Self identifying universal data storage element
    • 自我识别通用数据存储元件
    • US5239437A
    • 1993-08-24
    • US870578
    • 1992-04-17
    • David T. HogeMichael W. JohnsonJohn C. Owens
    • David T. HogeMichael W. JohnsonJohn C. Owens
    • G11B15/07G11B23/03G11B23/04G11B23/107G11B23/28G11B23/38
    • G11B23/0302G11B15/07G11B23/042G11B23/107G11B23/285
    • The universal data storage element presents a of uniform form factor that enables the user to vary the contents to include a selection of media types to provide variable data storage and/or recording characteristics. The physical characteristics of the media located within the data storage element are identified by a coding arrangement located on the exterior housing of the data storage element. The data storage element self identification apparatus consists of a plurality of coding apertures arranged in a linear array and located along one edge of the exterior housing of the data storage element. These coding apertures are placed as a function of the type of media contained within the data storage element or various data management characteristics of this media. The coding apertures are implemented by inserting a block into a corresponding recess in the front of the housing. One of the apertures is manually definable by a slide mechanism to enable a user to set the write protect status of the media. A human readable mark is also provided on the slide mechanism to indicate the write protect state of the media. The insertable block can be color coded to provide a human readable definition of the pattern of coding apertures.
    • 通用数据存储元件呈现均匀的形状因子,其使用户能够改变内容以包括媒体类型的选择以提供可变数据存储和/或记录特性。 位于数据存储元件内的介质的物理特性由位于数据存储元件的外壳上的编码布置来识别。 数据存储元件自识别装置由布置在线性阵列中并沿着数据存储元件的外壳的一个边缘定位的多个编码孔组成。 这些编码孔径根据包含在数据存储元件中的介质的类型或该介质的各种数据管理特性来放置。 编码孔径通过将块插入到壳体前部的相应凹部中来实现。 其中一个孔径可由滑动机构手动定义,以使用户能够设置介质的写保护状态。 还在滑动机构上提供人可读标记以指示介质的写保护状态。 可插入块可以进行颜色编码,以提供编码孔的图案的人类可读定义。