JPS5558646A - Conversion system of phase division code to nrz code - Google Patents
Conversion system of phase division code to nrz codeInfo
- Publication number
- JPS5558646A JPS5558646A JP13160578A JP13160578A JPS5558646A JP S5558646 A JPS5558646 A JP S5558646A JP 13160578 A JP13160578 A JP 13160578A JP 13160578 A JP13160578 A JP 13160578A JP S5558646 A JPS5558646 A JP S5558646A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- phase division
- signals
- output
- code
- 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
- H04L25/4904—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 self-synchronising codes, e.g. split-phase codes
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 make it possible to convert efficiently phase division signals to NRZ signals by processing phase division signals on a basis of clock signals obtained from the exclusive OR output of phase division signals and signals obtained by delaying them by 1/2 bit components. CONSTITUTION:One of clock signals d and e is selected on a basis of AND output 6 between the inversion output signal of exclusive OR output g, which is operated between phase division signal b and signal f obtained by delaying signal b by 1/2 bit components, and respective clock signals d and e. The output is outputted from OR gate 10 through integrator 7 to OR circuit 11 as an objective clock signal and is delayed by 1/2 bit, and after that, the phase division signal is discriminated and reproduced. As a result, the phase division signal can be converted to a NRZ signal efficiently.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13160578A JPS5558646A (en) | 1978-10-27 | 1978-10-27 | Conversion system of phase division code to nrz code |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13160578A JPS5558646A (en) | 1978-10-27 | 1978-10-27 | Conversion system of phase division code to nrz code |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5558646A true JPS5558646A (en) | 1980-05-01 |
Family
ID=15061960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13160578A Pending JPS5558646A (en) | 1978-10-27 | 1978-10-27 | Conversion system of phase division code to nrz code |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5558646A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0273724A (en) * | 1988-09-08 | 1990-03-13 | Nec Corp | Cmi decoding circuit |
-
1978
- 1978-10-27 JP JP13160578A patent/JPS5558646A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0273724A (en) * | 1988-09-08 | 1990-03-13 | Nec Corp | Cmi decoding circuit |
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