发明名称 |
Data transmission system and application thereof to the transmission of analog signals and of data in a network with delta modulation |
摘要 |
The invention relates to a system for data transmission in analog form in which data is coded such that a pulsed bivalent signal is obtained which can be physically integrated; this bivalent signal, considered as formed by a juxtaposition of elementary bits at a higher rate is processed in a DELTA demodulator as if these elementary bits were the digital representation of an analog signal which has undergone a corresponding DELTA modulation. Data is transmitted in the form of the analog signal delivered by this demodulator. On reception, the analog signal received is applied to a DELTA modulator which operates preferably in slope overload and which supplies a DELTA bit train reproducing the bivalent transmission signal of the transmission and enabling the signals to be restored after decoding.
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申请公布号 |
US4122300(A) |
申请公布日期 |
1978.10.24 |
申请号 |
US19770777824 |
申请日期 |
1977.03.15 |
申请人 |
COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL |
发明人 |
BUSIGNY, RENE;FUERXER, PIERRE H. |
分类号 |
H03M5/12;H04B14/06;H04L25/48;H04L25/49;H04L27/00;H04L29/00;H04M11/00;H04M11/06;(IPC1-7):H04L25/00 |
主分类号 |
H03M5/12 |
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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