发明名称 |
FACSIMILE REVERSE SIGNALING SYSTEM |
摘要 |
A facsimile transmission system utilizing telephone lines for its communication link is disclosed which is adapted to provide signals from the receiving unit to the transmitting unit to indicate failures of transmission to the transmitter. Provision is also made to simultaneously disable the echo suppressors present in long communication links so that two way communication is possible and to indicate to the transmitter that the receiver is ready to begin operation.
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申请公布号 |
US3700810(A) |
申请公布日期 |
1972.10.24 |
申请号 |
USD3700810 |
申请日期 |
1970.03.26 |
申请人 |
MAGNAVOX CO.:THE |
发明人 |
WILLIAM E. RICHESON JR.;JOEL K. ROACH |
分类号 |
H04L1/12;H04N1/32;(IPC1-7):H04M11/06 |
主分类号 |
H04L1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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