JPS6429038A - Scrambler - Google Patents
ScramblerInfo
- Publication number
- JPS6429038A JPS6429038A JP62184383A JP18438387A JPS6429038A JP S6429038 A JPS6429038 A JP S6429038A JP 62184383 A JP62184383 A JP 62184383A JP 18438387 A JP18438387 A JP 18438387A JP S6429038 A JPS6429038 A JP S6429038A
- Authority
- JP
- Japan
- Prior art keywords
- gate
- output
- inputted
- scramble
- data
- 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
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
PURPOSE:To make a scramble not be dissolved even if the scramble is imposed to the preamble part of data, in an mB1C synchronization system by inverting the data to be inputted to the scrambler of a first stage, when the output data of the respective stage comes to be a specified pattern. CONSTITUTION:The data 100 to be scrambled is inputted to the input terminal I1 of an EXOR gate 6, and besides, the output of a DFF 5 is inputted to the input terminal I3 of the EXOR gate 7, and the output of the OFF 2 is inputted to the input terminal I4 of the same gate. The respective outputs of these gates 6, 7 are outputted as a scramble signal 200 through the EXOR gate 8. In this case, when all the outputs of the DFFs 1-5 come to be 1, the output of an AND gate 9 comes to be 1 and is impressed to the gate 6. Thus, a device returns from a state that 0 appears in the output 200 of the gate 8 and the scramble is dissolved to the state that a random pattern is generated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184383A JPS6429038A (en) | 1987-07-23 | 1987-07-23 | Scrambler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184383A JPS6429038A (en) | 1987-07-23 | 1987-07-23 | Scrambler |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429038A true JPS6429038A (en) | 1989-01-31 |
Family
ID=16152227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62184383A Pending JPS6429038A (en) | 1987-07-23 | 1987-07-23 | Scrambler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429038A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003037643A (en) * | 2001-07-24 | 2003-02-07 | Hitachi Kokusai Electric Inc | Digital transmitter, digital receiver, data scramble method and data descramble method |
-
1987
- 1987-07-23 JP JP62184383A patent/JPS6429038A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003037643A (en) * | 2001-07-24 | 2003-02-07 | Hitachi Kokusai Electric Inc | Digital transmitter, digital receiver, data scramble method and data descramble method |
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