公开(公告)号：US06463135B2

公开(公告)日：2002-10-08

申请号：US09779750

申请日：2001-02-09

Applicant: Mehrdad Abrishami ,  JianWei Bei ,  Abhinandan Dodamini ,  Richard Meyers

Inventor： Mehrdad Abrishami ,  JianWei Bei ,  Abhinandan Dodamini ,  Richard Meyers

IPC: H04M1100

CPC classification number: H04N1/00312 ,  H04L47/10 ,  H04M7/125 ,  H04N1/00209 ,  H04N1/00281 ,  H04N1/324 ,  H04N1/32406 ,  H04N1/32443 ,  H04N1/32641 ,  H04N1/32662 ,  H04N1/32678 ,  H04N1/32789 ,  H04N1/32795 ,  H04N1/3333 ,  H04N1/33353 ,  H04N1/33392 ,  H04N2201/0015 ,  H04N2201/0024 ,  H04N2201/0067 ,  H04N2201/0068 ,  H04N2201/0086 ,  H04N2201/3298 ,  H04N2201/3335

Abstract: A system and method for fax transmission over a fax relay network that includes at least a wideband portion and a narrowband portion, includes a first fax relay gateway communicatively connecting a sending fax machine on the wideband portion of the network to the narrowband portion of the network, the first fax relay gateway receiving image data from the sending fax machine and outputting digitized image data in accordance with a data rate of the narrowband portion of the fax relay network. A second fax relay gateway, communicatively connects a receiving fax machine to the narrowband portion of the network. At least one of the first fax relay gateway or the second fax relay gateway includes a control process that determines whether an amount of data stored in a buffer in the fax relay gateway is greater or less than a particular threshold or determines that the amount of jitter in the narrow band network exceeds a particular threshold, and if so, initiates a retrain procedure to adjust the fax data rate.

Abstract translation: 一种通过传真中继网络进行传真传输的系统和方法，包括至少宽带部分和窄带部分，包括将网络的宽带部分上的发送传真机与网络的窄带部分通信地连接的第一传真中继网关 所述第一传真中继网关从所述发送传真机接收图像数据，并且根据所述传真中继网络的窄带部分的数据速率输出数字化图像数据。 第二传真中继网关将接收传真机通信地连接到网络的窄带部分。 第一传真中继网关或第二传真中继网关中的至少一个包括控制过程，其确定存储在传真中继网关中的缓冲器中的数据量是否大于或小于特定阈值，或者确定抖动量 在窄带网络中超过特定​​阈值，如果是，则启动重新训练程序来调整传真数据速率。