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The anecdote signal generation device and the anecdote signal demodulator and consists of these the secure voice communication device
The anecdote signal generation device and the anecdote signal demodulator and consists of these the secure voice communication device
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机译:轶事信号发生装置和轶事信号解调器,并由它们组成安全语音通信装置
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摘要
PURPOSE:To prevent distortion from being generated to a reception data by adding a data consecutive to just preceding and just succeeding data for a short time length to both ends of the data in the unit of a prescribed time length as one unit data. CONSTITUTION:When data D'1-D'4 added with the data consecutive to its just preceding and just succeeding data to both ends of the data in the unit of a prescribed time with a short time length are read, the data are read while being compressed on a time base by a period tsy only at every frame and the result is outputted from a D/A converting means 8 as a privacy signal. Boundary parts of the data D'1-D'4 rearranged on the time base are not continuous and distortion is generated by the limit of a frequency band for a transmission line or the like. Data DELTAdr1-DELTAdr4 are set so that the time for the distortion generation is kept within a range of the time of the data DELTAdr1-DELTAdr4 added just after the data D'1-D'4 in the unit of prescribed time.
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