JPS6464431A - Input and output signal supervising circuit - Google Patents
Input and output signal supervising circuitInfo
- Publication number
- JPS6464431A JPS6464431A JP22154587A JP22154587A JPS6464431A JP S6464431 A JPS6464431 A JP S6464431A JP 22154587 A JP22154587 A JP 22154587A JP 22154587 A JP22154587 A JP 22154587A JP S6464431 A JPS6464431 A JP S6464431A
- Authority
- JP
- Japan
- Prior art keywords
- data
- circuit
- jitter
- clock
- input signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
PURPOSE:To reduce jitter to be added to a memory circuit and to decrease the number of bits necessary for a memory by reading the data of the memory circuit with a clock to suppress the jitter in an input signal. CONSTITUTION:A jitter suppressing circuit 2 suppresses the jitter in an input signal 1 and outputs a data clock to a variable length shift register 3. On the other hand, an input signal receives conversion in a composing circuit 6 and after that, it is written to a memory circuit 5. These written data are successively read with the clock to suppress the jitter and outputted to a bit error detecting circuit 4. The data written to the register 3 receives the delay of an arbitrary time and it is outputted so that the delay time of the data to be inputted from the register 3 to the detecting circuit 4 by the control of the detecting circuit 4 and the delay time of the data to be inputted from the memory circuit 5 can be equal. The detecting circuit 4 compares the two data with bit-by-bit and an error is detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22154587A JP2576526B2 (en) | 1987-09-03 | 1987-09-03 | I / O signal monitoring circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22154587A JP2576526B2 (en) | 1987-09-03 | 1987-09-03 | I / O signal monitoring circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6464431A true JPS6464431A (en) | 1989-03-10 |
JP2576526B2 JP2576526B2 (en) | 1997-01-29 |
Family
ID=16768401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22154587A Expired - Lifetime JP2576526B2 (en) | 1987-09-03 | 1987-09-03 | I / O signal monitoring circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2576526B2 (en) |
-
1987
- 1987-09-03 JP JP22154587A patent/JP2576526B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2576526B2 (en) | 1997-01-29 |
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