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    SYSTEMS AND METHODS FOR FACSIMILE ECHO CANCELLATION
    1.
    发明申请
    SYSTEMS AND METHODS FOR FACSIMILE ECHO CANCELLATION 审中-公开
    FACSIMILE ECHO CANCELLATION的系统和方法

    公开(公告)号：WO2006121545A2

    公开(公告)日：2006-11-16

    申请号：PCT/US2006013060

    申请日：2006-04-07

    Applicant: CALLWAVE INC ,  SMITH ROBERT ,  ERRINGER ALAN

    Inventor： SMITH ROBERT ,  ERRINGER ALAN

    IPC: H04B3/20

    CPC classification number: H04M11/066 ,  H04M3/002 ,  H04M2201/52

    Abstract: The present invention is related to methods and systems for reducing or canceling echoes during fax communications. In an embodiment, during a fax call, a first fax signal from a first fax device intended for a second fax device is detected. Based at least in part on detecting the first fax signal from the first fax device or on the termination of the first fax signal, an echo audio packet is muted, wherein the echo audio packet is at least partly the result of the first fax signal being transmitted over a network, the network including at least a data network.

    Abstract translation: 本发明涉及用于在传真通信期间减少或取消回波的方法和系统。 在一个实施例中，在传真呼叫期间，检测来自用于第二传真设备的第一传真设备的第一传真信号。 至少部分地基于检测来自第一传真设备的第一传真信号或者在第一传真信号的终止时，回声音频分组被静音，其中回波音频分组至少部分地是第一传真信号的结果 通过网络传输，该网络至少包括一个数据网络。

    SYSTEMS AND METHODS FOR FACSIMILE ECHO CANCELLATION
    3.
    发明专利
    SYSTEMS AND METHODS FOR FACSIMILE ECHO CANCELLATION 未知

    公开(公告)号：CA2607488A1

    公开(公告)日：2006-11-16

    申请号：CA2607488

    申请日：2006-04-07

    Applicant: CALLWAVE INC

    Inventor： ERRINGER ALAN ,  SMITH ROBERT

    IPC: H04B3/20 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66

    Abstract: The present invention is related to methods and systems for reducing or canceling echoes during fax communications In an embodiment, during a fax call, a first fax signal from a first fax device intended for a second fax device is detected. Based at least in part on detecting the first fax signal from the first fax device (200) or on the termination of the first fax signa l, an echo audio packet is muted, wherein the echo audio packet is at least partly the result of the first fax signal being transmitted over a network, the network including at least a data network (203).

    SYSTEMS AND METHODS FOR CALL SCREENING
    4.
    发明专利
    SYSTEMS AND METHODS FOR CALL SCREENING 未知

    公开(公告)号：CA2485688A1

    公开(公告)日：2003-12-04

    申请号：CA2485688

    申请日：2003-05-19

    Applicant: CALLWAVE INC

    Inventor： SMITH ROBERT ,  TRANDAL DAVID ,  BRAHM DAVID

    IPC: H04M3/42 ,  H04M3/428 ,  H04M3/436 ,  H04M3/533 ,  H04M7/00

    Abstract: The present invention provides flexible, user-definable call screening processes. The user (112) can optionally define to which telecommunication terminals a screened call is to be broadcast to and under what conditions. A n incoming call is forwarded to a call management system (124) that asks the caller (102) to leave a voice message. The call management system (124) selectively couples the call to a POTS line or a VoIP-capable device (110) s o that the user (112) can listen to the incoming message and thereby screen th e incoming call. Based on the screening, the user (112) can instruct the call management system (124) to connect the caller (102) to the user (112).

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