发明名称 |
Pulse phase difference encoding circuit |
摘要 |
A pulse phase difference encoding circuit provides a digital signal indicating a phase difference between a first input pulse and a second input pulse. The first input pulse is provided to and circulated in a ring signal delay circuit having a plurality of signal delay elements that are connected in series. Intermediate points between the delay elements provide delayed pulses having different delay times. Upon receiving the second input pulse, a selector selects one delay pulse provided by the delay element at which the first input pulse has arrived, and generates a digital positional signal indicating a position of the selected delay element. The number of rounds of circulation of the first input pulse in the ring signal delay circuit is separately counted. According to the number of rounds of circulation of the first pulse and the positional signal, the digital signal indicating the phase difference between the first and second input pulses is formed.
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申请公布号 |
US5289135(A) |
申请公布日期 |
1994.02.22 |
申请号 |
US19920909211 |
申请日期 |
1992.07.06 |
申请人 |
NIPPON SOKEN, INC.;NIPPONDENSO CO., LTD. |
发明人 |
HOSHINO, KOUICHI;WATANABE, TAKAMOTO;OHTSUKA, YOSHINORI |
分类号 |
H03K5/26;G01R25/00;G01R25/08;G04F10/00;G04F10/04;(IPC1-7):G01R25/08 |
主分类号 |
H03K5/26 |
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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