发明名称 |
Digital circuit for the introduction of dither into an analog signal |
摘要 |
An electronics circuit for digitizing an analog audio or like data signal into a six bit digital equivalent signal and then introducing a dither component into the digital equivalent signal. The electronics circuit includes an Erasable Programmed Read Only Memory (EPROM) which generates a six bit dither component to be added to the digital equivalent signal. A binary adder adds a dither bit to each of the six bits of the digital equivalent signal and then provides a three bit equivalent digital signal. The three bit equivalent digital signal is then written in parallel into a first storage register, while one bit of the three bit digital equivalent signal is written into a second storage register. When a fuze active signal, which is input to the present invention, is a logic zero the first register is enabled for a read operation allowing the three bit equivalent digital data to be read from the first register to a parallel to serial converter which converts the data to a serial three bit digital format. When the fuze activate signal is a logic one the second register is enabled for a read operation allowing the one bit equivalent digital data to be read from the second register to the parallel to serial converter which converts the data to a serial one bit digital format.
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申请公布号 |
US5448237(A) |
申请公布日期 |
1995.09.05 |
申请号 |
US19940209508 |
申请日期 |
1994.03.08 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
BORGEN, GARY S.;PACL, JEFFREY J. |
分类号 |
H03M1/06;H03M1/12;(IPC1-7):H03M1/20 |
主分类号 |
H03M1/06 |
代理机构 |
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主权项 |
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