AU7208274A - Improvements in or relating to digital data transmission systems - Google Patents
Improvements in or relating to digital data transmission systemsInfo
- Publication number
- AU7208274A AU7208274A AU72082/74A AU7208274A AU7208274A AU 7208274 A AU7208274 A AU 7208274A AU 72082/74 A AU72082/74 A AU 72082/74A AU 7208274 A AU7208274 A AU 7208274A AU 7208274 A AU7208274 A AU 7208274A
- Authority
- AU
- Australia
- Prior art keywords
- relating
- data transmission
- digital data
- transmission systems
- systems
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J4/00—Combined time-division and frequency-division multiplex systems
-
- 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
- H04L25/4917—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 multilevel codes
- H04L25/4923—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 multilevel codes using ternary codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732339806 DE2339806C3 (en) | 1973-08-06 | Messaging system | |
DEDE823398 | 1973-08-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU485887B2 AU485887B2 (en) | |
AU7208274A true AU7208274A (en) | 1976-02-12 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
DE2339806B2 (en) | 1976-09-23 |
JPS5717583Y2 (en) | 1982-04-13 |
ATA626974A (en) | 1978-10-15 |
JPS5660342U (en) | 1981-05-22 |
BE818558R (en) | 1974-12-02 |
AT350111B (en) | 1979-05-10 |
IT1046369B (en) | 1980-06-30 |
GB1482971A (en) | 1977-08-17 |
JPS5076966A (en) | 1975-06-24 |
SE7410037L (en) | 1975-02-07 |
SE404745B (en) | 1978-10-23 |
DE2339806A1 (en) | 1975-02-27 |
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