发明名称 |
Non-linear coder for pulse code modulation of telephone signals or the like |
摘要 |
A non-linear coder for use in a time-division multiplex pulse code modulation telephone transmission system is disclosed. Non-linear coding is accomplished by the selection of each segment that is necessary for coding by control pulses in accordance with the magnitude of an analog input signal. This is implemented in the feedback loop of the non-linear coder logic which selects among switching circuits in a local decoder a desired group of switching circuits in response to the input analog level.
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申请公布号 |
US4021800(A) |
申请公布日期 |
1977.05.03 |
申请号 |
US19750568762 |
申请日期 |
1975.04.16 |
申请人 |
NIPPON ELECTRIC COMPANY, LTD. |
发明人 |
KATAGIRI, YOSHIO;SUDA, RYUICHI |
分类号 |
H03M1/38;H03M1/00;(IPC1-7):H03K13/01 |
主分类号 |
H03M1/38 |
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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