JPS57140055A - Cmi coding circuit - Google Patents
Cmi coding circuitInfo
- Publication number
- JPS57140055A JPS57140055A JP2419881A JP2419881A JPS57140055A JP S57140055 A JPS57140055 A JP S57140055A JP 2419881 A JP2419881 A JP 2419881A JP 2419881 A JP2419881 A JP 2419881A JP S57140055 A JPS57140055 A JP S57140055A
- Authority
- JP
- Japan
- Prior art keywords
- output
- clock
- terminal
- input
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
- H04L25/4908—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes
- H04L25/491—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes using 1B2B codes
- H04L25/4912—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes using 1B2B codes using CMI or 2-HDB-3 code
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc Digital Transmission (AREA)
Abstract
PURPOSE:To avoid the delay in a half clock width and to decrease the circuit scale, by inputting an input signal of NRZ code to a selection signal input of a selection circuit, in a CMI coding circuit having a violation generating function. CONSTITUTION:An input signal (i) of NRZ code at a terminal 11 and a clock input signal (j) at a terminal 12 are inputted to an NAND gate 13, and the output becomes a clock input of a D-FF14. When an input signal (h) at a terminal 10 goes to 1, the counting of a mode 2 stopps, and the output (m) of an exclusive OR gate 15 acts like the same operation as the stopping of count at a leading of a clock (k). When the output (m) of the gate 15 and the clock signal (j) at the terminal 12 are inputted to input sides A, B, an output (n) of the selection circuit 16 becomes a CMI coding output having the violation generating function of the CMI rule.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2419881A JPS57140055A (en) | 1981-02-23 | 1981-02-23 | Cmi coding circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2419881A JPS57140055A (en) | 1981-02-23 | 1981-02-23 | Cmi coding circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57140055A true JPS57140055A (en) | 1982-08-30 |
Family
ID=12131621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2419881A Pending JPS57140055A (en) | 1981-02-23 | 1981-02-23 | Cmi coding circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57140055A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS632427A (en) * | 1986-06-21 | 1988-01-07 | Nec Corp | Code conversion circuit |
-
1981
- 1981-02-23 JP JP2419881A patent/JPS57140055A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS632427A (en) * | 1986-06-21 | 1988-01-07 | Nec Corp | Code conversion circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE168481T1 (en) | CIRCUIT ARRANGEMENT FOR DIGITAL MULTIPLYING INTEGER NUMBERS | |
JPS57140055A (en) | Cmi coding circuit | |
ATE57783T1 (en) | SIGNAL SELECTION CIRCUIT. | |
JPS57140054A (en) | Ami coding circuit | |
JPS56114441A (en) | Counting circuit | |
JPS56117423A (en) | Binary coding circuit by multistage threshold level | |
JPS57194378A (en) | Test circuit of electronic clock | |
JPS5762633A (en) | Counting device | |
JPS5299029A (en) | Input/output interface control system | |
JPS5453936A (en) | Failure detection unit | |
JPS57101964A (en) | Percent operation system | |
JPS57141135A (en) | Counting device | |
JPS5731053A (en) | Remainder and parity generating circuit | |
JPS57188158A (en) | Parity bit addition circuit | |
JPS5683163A (en) | Encoding system | |
JPS52153337A (en) | Desk-top electronic calculator | |
JPS57155647A (en) | Parity checking and parity generating circuit in combination | |
JPS57106240A (en) | Up/down counter circuit | |
JPS5769957A (en) | Pattern detection circuit | |
JPS52128004A (en) | Magnetic input type jumper checking circuit | |
JPS5556264A (en) | Error detection circuit | |
JPS57160224A (en) | Count confirming circuit | |
JPS57108925A (en) | Switch input circuit | |
JPS56123129A (en) | Counting circuit | |
JPS5563414A (en) | Timing signal generation circuit |