Communication mode identification technique
    1.
    发明授权
    Communication mode identification technique 失效
    通信模式识别技术

    公开(公告)号:US5444712A

    公开(公告)日:1995-08-22

    申请号:US113113

    申请日:1993-08-30

    IPC分类号: H04L27/34 H04J3/12

    CPC分类号: H04L27/34

    摘要: A technique for use in communications systems utilizing busy and idle modes. In the busy mode, symbols representative of data are transmitted to system end users. In the idle mode, during which no data is communicated to end users, idle mode symbols are transmitted. Such idle mode symbols are not used to represent data and are only transmitted during the idle mode. Advantageously, such idle mode symbols maintain adaptive apparatus, such as AGC circuits, NEXT cancellers and equalizers, in their properly converged state. In the disclosed embodiment, the idle mode symbols are the innermost symbols in a signal constellation and transition from the idle to busy mode is represented by the transmission of a predetermined number of outermost symbols in the signal constellation. Use of such symbols for idle-to-busy mode transitions advantageously provides ready detection of such transitions. In addition, use of the innermost symbols for the idle mode reduces spectral emission and crosstalk.

    摘要翻译: 一种在使用忙碌和空闲模式的通信系统中使用的技术。 在忙模式下,代表数据的符号被发送给系统终端用户。 在空闲模式中,在此期间没有数据传送给终端用户,发送空闲模式符号。 这种空闲模式符号不用于表示数据,并且仅在空闲模式期间传输。 有利的是,这种空闲模式符号在自适应收敛状态下保持自适应装置,例如AGC电路,NEXT消除器和均衡器。 在所公开的实施例中,空闲模式符号是信号星座中的最内符号,并且从空闲模式到忙模式的转换由信号星座图中预定数量的最外边符号的传输来表示。 使用这种符号进行空闲到忙模式转换有利地提供了对这种转换的即时检测。 此外,对于空闲模式使用最内部的符号减少了频谱发射和串扰。

    Apparatus for locating programs resident on a cartridge of a cartridge
programmable communication system
    2.
    发明授权
    Apparatus for locating programs resident on a cartridge of a cartridge programmable communication system 失效
    用于定位驻留在墨盒可编程通信系统的墨盒上的程序的装置

    公开(公告)号:US4703416A

    公开(公告)日:1987-10-27

    申请号:US777515

    申请日:1985-09-19

    IPC分类号: H04M9/00 H04Q3/545 G06F12/06

    CPC分类号: H04Q3/54533 H04M9/007

    摘要: A communication system controller is operable under program calls from two memories which are independently changeable. A first memory includes a group of hardware-dependent programs and a second memory includes a group of hardware-independent programs. Calls are initiated by programs resident on the first memory to an interface program resident on the second memory at an address known to programs of the first memory. This interface program call includes an argument indentifyng the function program to be called. The interface program uses the argument to determine the location of the function program from a program table and then transfers control to the function program.

    摘要翻译: 通信系统控制器可在独立可变的两个存储器的程序呼叫下操作。 第一存储器包括一组依赖硬件的程序,第二存储器包括一组与硬件无关的程序。 呼叫由驻留在第一存储器上的程序发起到驻留在第二存储器上的接口程序,以第一存储器的程序已知的地址。 这个接口程序调用包括一个参数,指定要调用的函数程序。 接口程序使用参数从程序表中确定函数程序的位置,然后将控制传递给函数程序。

    Speech recognition over packet networks
    3.
    发明授权
    Speech recognition over packet networks 有权
    分组网络的语音识别

    公开(公告)号:US06195636B1

    公开(公告)日:2001-02-27

    申请号:US09253017

    申请日:1999-02-19

    IPC分类号: G10L1900

    CPC分类号: G10L15/30

    摘要: In a system in which user equipment is connected to a packet network and a speech recognition application server is also connected to the packet network for performing speech recognition on speech data from the user equipment, a speech recognition system selectively performs feature extraction at a user end before transmitting speech data to be recognized. The feature extraction is performed only for speech which is to be recognized.

    摘要翻译: 在用户设备连接到分组网络并且语音识别应用服务器也连接到分组网络以对来自用户设备的语音数据执行语音识别的系统中,语音识别系统选择性地在用户端执行特征提取 在发送要被识别的语音数据之前。 仅对要识别的语音执行特征提取。