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1.发明申请Technique for connecting fax machines with advanced capabilities over a network which is not adapted to handle certain protocols 有权通过网络连接具有先进功能的传真机的技术，不适合处理某些协议公开(公告)号：US20050168785A1
公开(公告)日：2005-08-04
申请号：US11058491
申请日：2005-02-14
申请人： Mehryar Garakani , Hanh Luong , Brooks Read , Steven White , Ilya Umansky , Herbert Wildfeuer
发明人： Mehryar Garakani , Hanh Luong , Brooks Read , Steven White , Ilya Umansky , Herbert Wildfeuer
CPC分类号： H04N1/00209 , H04N1/32719 , H04N1/32721 , H04N1/32723 , H04N1/32771 , H04N1/32784 , H04N1/32795 , H04N1/32797 , H04N1/33338
摘要： An improved method and system for connecting Super Group 3 fax machines over network gateways that operate using the un-enhanced T.38 protocol. With the present invention, the CM tone is suppressed. Thus a gateway that generates an AnsAm tone, will not receive a CM tone in response. The T.38 protocol does not specify what occurs if a CM tone is not received; however, it has been found that, in practice, existing fax machines fall back to V.21 mode if a CM tone is not received.
摘要翻译： 一种改进的方法和系统，用于通过网络网关连接超级组3传真机，使用未增强的T.38协议进行操作。 根据本发明，抑制了CM色调。 因此，生成AnsAm音调的网关将不会收到CM音。 T.38协议没有指定如果没有收到CM音，会发生什么; 然而，已经发现，在实践中，如果没有接收到CM音调，现有的传真机将返回到V.21模式。
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2.发明授权Technique for connecting fax machines with advanced capabilities over a network which is not adapted to handle certain protocols 有权通过网络连接具有先进功能的传真机的技术，不适合处理某些协议公开(公告)号：US07639403B2
公开(公告)日：2009-12-29
申请号：US11058491
申请日：2005-02-14
申请人： Mehryar Khalili Garakani , Hanh Luong , Brooks S. Read , Steven J. White , Ilya Umansky , Herbert M. Wildfeuer
发明人： Mehryar Khalili Garakani , Hanh Luong , Brooks S. Read , Steven J. White , Ilya Umansky , Herbert M. Wildfeuer
IPC分类号： H04N1/04
CPC分类号： H04N1/00209 , H04N1/32719 , H04N1/32721 , H04N1/32723 , H04N1/32771 , H04N1/32784 , H04N1/32795 , H04N1/32797 , H04N1/33338
摘要： An improved method and system for connecting Super Group 3 fax machines over network gateways that operate using the un-enhanced T.38 protocol. With the present invention, the CM tone is suppressed. Thus a gateway that generates an AnsAm tone, will not receive a CM tone in response. The T.38 protocol does not specify what occurs if a CM tone is not received; however, it has been found that, in practice, existing fax machines fall back to V.21 mode if a CM tone is not received.
摘要翻译： 一种改进的方法和系统，用于通过网络网关连接超级组3传真机，使用未增强的T.38协议进行操作。 根据本发明，抑制了CM色调。 因此，生成AnsAm音调的网关将不会收到CM音。 T.38协议没有指定如果没有收到CM音，会发生什么; 然而，已经发现，在实践中，如果没有接收到CM音调，现有的传真机将返回到V.21模式。
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3.发明授权Controlling the transition glitch that occurs when a gateway switches from voice over IP to voice band data 失效控制网关从IP语音切换到语音频带数据时发生的转换故障公开(公告)号：US07058066B1
公开(公告)日：2006-06-06
申请号：US10763771
申请日：2004-01-22
CPC分类号： H04L12/6418 , H04J3/0632
摘要： In a gateway router the length of the play-out buffer in VBD mode is not set at a previously established value. Instead the length of the play-out buffer in VBD mode is determined by the length of the buffer in the previous audio mode. When the system switches from audio mode to VDB mode, the length of the play-out buffer in audio mode is noted. The length of the play-out buffer in VBD mode is then set equal to its length in the prior audio mode plus a dilation factor. An audio concealment algorithm (which fills in gaps caused by missed packets) is used during the transition from audio to VDB to conceal any transition glitch during the answer tone.
摘要翻译： 在网关路由器中，VBD模式下的播放缓冲区的长度不会设置为先前建立的值。 相反，VBD模式中的播放缓冲器的长度由先前音频模式中缓冲区的长度决定。 当系统从音频模式切换到VDB模式时，注意音频模式下播放缓冲区的长度。 然后将VBD模式中的播放缓冲器的长度设置为等于其在先前的音频模式中的长度加上扩张因子。 在从音频到VDB的过渡期间使用音频隐藏算法（其填充由错过的分组引起的间隙），以在应答音中隐藏任何转换毛刺。
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