JPS6430345A - Synchronizing detecting circuit - Google Patents
Synchronizing detecting circuitInfo
- Publication number
- JPS6430345A JPS6430345A JP62185389A JP18538987A JPS6430345A JP S6430345 A JPS6430345 A JP S6430345A JP 62185389 A JP62185389 A JP 62185389A JP 18538987 A JP18538987 A JP 18538987A JP S6430345 A JPS6430345 A JP S6430345A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- serial data
- frame
- frame length
- ram
- 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.)
- Pending
Links
Abstract
PURPOSE:To cause the frame length of input data to be variable and to simplify a circuit by using a RAM, to which an address is supplied from a counter having an automatic initial value resetting function, for detecting a frame bit pattern. CONSTITUTION:A circuit 5 is provided which supplies the address from a counter, in which the frame period of serial data is set, to a RAM 3, and detects the frame bit pattern by fetching data separated for the frame length on the serial data in the sequence of adjoining bits on the same address, and by changing the period of the counter 1, the frame length of the serial data is made to be variable. In such a way, by using a RAM 3 instead of plural shift registers, a correspondence to the frame length of variable serial data can be made possible, and since the number of elements to be used can be reduced, a circuit constitution can be simplified, and the circuit can be miniaturized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62185389A JPS6430345A (en) | 1987-07-27 | 1987-07-27 | Synchronizing detecting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62185389A JPS6430345A (en) | 1987-07-27 | 1987-07-27 | Synchronizing detecting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430345A true JPS6430345A (en) | 1989-02-01 |
Family
ID=16169954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62185389A Pending JPS6430345A (en) | 1987-07-27 | 1987-07-27 | Synchronizing detecting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430345A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030512A (en) * | 1989-09-20 | 1991-07-09 | International Business Machines Corporation | Magneto-optical recording medium |
-
1987
- 1987-07-27 JP JP62185389A patent/JPS6430345A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030512A (en) * | 1989-09-20 | 1991-07-09 | International Business Machines Corporation | Magneto-optical recording medium |
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