Data terminal device
    1.
    发明授权
    Data terminal device 失效
    数据终端设备

    公开(公告)号:US4891783A

    公开(公告)日:1990-01-02

    申请号:US1968

    申请日:1987-01-08

    IPC分类号: H04L29/06 H04M11/00 H04M11/06

    CPC分类号: H04L29/06 H04M11/06 H04L69/18

    摘要: A data terminal device, having a plurality of protocols stored therein, has a data transmitting mode and a data receiving mode. When in a transmitting mode, the terminal device transmits to another data terminal initial data according to one of the protocols. The terminal device then awaits a feed back signal from the other terminal device. If a feed back signal is received, the terminal device transmits the data. If no feed back signal is received, the terminal device transmits a break signal which indicates that a change in receiving protocol is required. When in a receiving mode, the terminal device receives data according to one of the protocols. If data is received having the same protocol as that of the receiver of the terminal device, a feed back signal is transmitted to the other terminal device. If the data protocol received is different, no feed back signal is transmitted, and the terminal device awaits a break signal indicating that change in receiving protocol is required.

    摘要翻译: 具有存储在其中的多个协议的数据终端装置具有数据发送模式和数据接收模式。 当处于发送模式时,终端设备根据协议之一向另一个数据终端发送初始数据。 终端设备然后等待来自另一个终端设备的反馈信号。 如果接收到反馈信号,则终端设备发送数据。 如果没有接收到反馈信号,则终端设备发送指示需要接收协议的改变的中断信号。 当处于接收模式时,终端设备根据协议之一接收数据。 如果接收到具有与终端设备的接收机相同的协议的数据,则将反馈信号发送到另一个终端设备。 如果接收到的数据协议不同,则不发送反馈信号,并且终端设备等待中断信号,指示需要接收协议的改变。

    Navigation system and intersection guidance method
    2.
    发明授权
    Navigation system and intersection guidance method 失效
    导航系统和交叉引导方法

    公开(公告)号:US5729109A

    公开(公告)日:1998-03-17

    申请号:US679399

    申请日:1996-07-09

    摘要: A navigation system and a voice guidance method for carrying out a voice guidance of an intersection on a drive route when the user demands the voice guidance while a motor vehicle is running according to a preset drive route. In response to the output demand of the guidance information through an inputting unit, a control unit obtains a distance to the intersection and an advancing direction in the intersection and further reads out the corresponding sound data from a sound storing unit. This sound data is outputted through a speech synthesizing unit and a voice outputting unit.

    摘要翻译: 一种导航系统和语音引导方法,用于当用户在机动车辆正在行驶时根据预设的驱动路线来进行语音引导时,在驱动路线上进行交叉路口的语音引导。 响应于通过输入单元的引导信息的输出需求,控制单元获得与交叉路口的距离和交叉路口中的前进方向,并从声音存储单元中读出相应的声音数据。 该声音数据通过语音合成单元和语音输出单元输出。

    Information terminal and information terminal system
    5.
    发明授权
    Information terminal and information terminal system 有权
    信息终端和信息终端系统

    公开(公告)号:US07664060B2

    公开(公告)日:2010-02-16

    申请号:US11282493

    申请日:2005-11-18

    IPC分类号: H04B3/36

    摘要: An information terminal incorporates a network interface and an extension interface, and in the case of outside call, an audio send signal is modulated into an audio signal frequency band, and sent to the exchange through a private telephone line and a subscriber's line by way of the network interface. An audio receive signal sent from the exchange through the subscriber's line and private telephone line is demodulated into an ordinary audio frequency band through the network interface. On the other hand, in the case of extension service, an audio send signal is converted into a packetized digital signal by an extension interface circuit, and is further modulated into a higher frequency band so as not to overlap with the audio signal frequency band, and is transmitted through the private telephone line.

    摘要翻译: 信息终端包括网络接口和扩展接口,并且在外部呼叫的情况下,音频发送信号被调制成音频信号频带,并通过专用电话线路和用户线路通过以下方式发送到交换机: 网络接口。 通过用户线路和私人电话线从交换机发送的音频接收信号通过网络接口解调成普通的音频频带。 另一方面,在扩展业务的情况下,通过扩展接口电路将音频发送信号转换为分组数字信号,并进一步调制为较高频带,以便不与音频信号频带重叠, 并通过私人电话线传输。

    Information terminal and information terminal system
    7.
    发明授权
    Information terminal and information terminal system 有权
    信息终端和信息终端系统

    公开(公告)号:US07054303B2

    公开(公告)日:2006-05-30

    申请号:US09731495

    申请日:2000-12-07

    IPC分类号: H04L12/66

    摘要: An information terminal incorporates a network interface and an extension interface, and in the case of outside call, an audio send signal is modulated into an audio signal frequency band, and sent to the exchange through a private telephone line and a subscriber's line by way of the network interface. An audio receive signal sent from the exchange through the subscriber's line and private telephone line is demodulated into an ordinary audio frequency band through the network interface. On the other hand, in the case of extension service, an audio send signal is converted into a packetized digital signal by an extension interface circuit, and is further modulated into a higher frequency band so as not to overlap with the audio signal frequency band, and is transmitted through the private telephone line.

    摘要翻译: 信息终端包括网络接口和扩展接口,并且在外部呼叫的情况下,音频发送信号被调制成音频信号频带,并通过专用电话线路和用户线路通过以下方式发送到交换机: 网络接口。 通过用户线路和私人电话线从交换机发送的音频接收信号通过网络接口解调成普通的音频频带。 另一方面,在扩展业务的情况下,通过扩展接口电路将音频发送信号转换为分组数字信号,并进一步调制为较高频带,以便不与音频信号频带重叠, 并通过私人电话线传输。