JPS6480137A - Sampling frequency conversion circuit - Google Patents
Sampling frequency conversion circuitInfo
- Publication number
- JPS6480137A JPS6480137A JP62237012A JP23701287A JPS6480137A JP S6480137 A JPS6480137 A JP S6480137A JP 62237012 A JP62237012 A JP 62237012A JP 23701287 A JP23701287 A JP 23701287A JP S6480137 A JPS6480137 A JP S6480137A
- Authority
- JP
- Japan
- Prior art keywords
- data
- sampled
- sampling
- data string
- ensured
- 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
Abstract
PURPOSE:To prevent an error caused by a change point of a data sampled by outputting selectively a data string sampled while the data is ensured among plural strings sampled by the clock of a sampling frequency. CONSTITUTION:A data string varied synchronously with the leading of a sampling clock f1 and a data string varied synchronously with the trailing of the sampling clock f1 and delayed by a half period from the former data string are generated respectively from the output of a FF 5 and the output of a FF 6. The data string is fed from the FFs 5, 6 to the FFs 7, 8 and sampled at the leading of a sampling clock f3. Then the data string sampled while the data is ensured among the data strings is selected by a switch circuit 9 and outputted. Thus, the sampling data when the data is ensured is extracted at all times and an error caused by sampling the vicinity of the change point of data is prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237012A JP2625758B2 (en) | 1987-09-21 | 1987-09-21 | Sampling frequency conversion circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237012A JP2625758B2 (en) | 1987-09-21 | 1987-09-21 | Sampling frequency conversion circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6480137A true JPS6480137A (en) | 1989-03-27 |
JP2625758B2 JP2625758B2 (en) | 1997-07-02 |
Family
ID=17009079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62237012A Expired - Lifetime JP2625758B2 (en) | 1987-09-21 | 1987-09-21 | Sampling frequency conversion circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2625758B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04318788A (en) * | 1991-04-18 | 1992-11-10 | Sanyo Electric Co Ltd | Sampling rate conversion circuit |
US5315425A (en) * | 1990-09-11 | 1994-05-24 | Koninklijke Ptt Nederland N.V. | Optical transmission network with frequency locking means |
-
1987
- 1987-09-21 JP JP62237012A patent/JP2625758B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5315425A (en) * | 1990-09-11 | 1994-05-24 | Koninklijke Ptt Nederland N.V. | Optical transmission network with frequency locking means |
JPH04318788A (en) * | 1991-04-18 | 1992-11-10 | Sanyo Electric Co Ltd | Sampling rate conversion circuit |
Also Published As
Publication number | Publication date |
---|---|
JP2625758B2 (en) | 1997-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080411 Year of fee payment: 11 |