发明名称 |
Digital circuit for the introduction and later removal of dither from an analog signal |
摘要 |
An electronics circuit for accurately digitizing an analog audio or like data signal into a digital equivalent signal by introducing dither into the analog signal and then subsequently removing the dither from the digitized signal prior to its conversion to an analog signal which is a substantial replica of the incoming analog audio or like data signal. The electronics circuit of the present invention is characterized by a first pseudo-random number generator which generates digital random noise signals or dither for addition to the digital equivalent signal and a second pseudo-random number generator which generates subtractive digital random noise signals for the subsequent removal of dither from the digital equivalent signal prior its conversion to the analog replica signal.
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申请公布号 |
US5311180(A) |
申请公布日期 |
1994.05.10 |
申请号 |
US19930004004 |
申请日期 |
1993.01.15 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
BORGEN, GARY S. |
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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代理人 |
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主权项 |
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地址 |
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