JPS5711564A - Transmission system for burst signal - Google Patents
Transmission system for burst signalInfo
- Publication number
- JPS5711564A JPS5711564A JP8537680A JP8537680A JPS5711564A JP S5711564 A JPS5711564 A JP S5711564A JP 8537680 A JP8537680 A JP 8537680A JP 8537680 A JP8537680 A JP 8537680A JP S5711564 A JPS5711564 A JP S5711564A
- Authority
- JP
- Japan
- Prior art keywords
- bit
- multivalue
- digital signal
- symbol
- symbols
- 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.)
- Granted
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
- H04L25/4917—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
- H04L25/4919—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 balanced multilevel codes
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Dc Digital Transmission (AREA)
Abstract
PURPOSE:To decrease the unbalance amount in burst signals without adding a burst synchronizing bit to the trust signals, by converting a digital signal into the absolute value of multivalue symbols of a plurality. CONSTITUTION:When a code of digital signal to be transmitted is 1000011101, since the 1st bit is 1, this digital signal is converted into a multivalue according to the table by 2-bit. The absolute value of signal in multivalue is 2, 0, 1, 3, 1. Since the 1st bit is 1, positive sign is given to the 1st symbol. Thus, the symbol is +2. The other symbols are given by negative sign when the average level of the sum of the symbols preceeding is positive, and by positive, when negative. When the code of digital signal to be transmitted is 0010011110, since the 1st bit is 0, 0 and 1 are inverted each other, this inverted signal is in multivalue by 2-bit and sign is given to each symbol with the similar operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8537680A JPS5711564A (en) | 1980-06-24 | 1980-06-24 | Transmission system for burst signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8537680A JPS5711564A (en) | 1980-06-24 | 1980-06-24 | Transmission system for burst signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5711564A true JPS5711564A (en) | 1982-01-21 |
JPH0136294B2 JPH0136294B2 (en) | 1989-07-31 |
Family
ID=13856998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8537680A Granted JPS5711564A (en) | 1980-06-24 | 1980-06-24 | Transmission system for burst signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5711564A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729043A (en) * | 1985-12-11 | 1988-03-01 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital information storage and retrieval using video signals |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3902282B1 (en) | 2018-12-21 | 2024-05-15 | Sony Group Corporation | Sound reproduction device |
-
1980
- 1980-06-24 JP JP8537680A patent/JPS5711564A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729043A (en) * | 1985-12-11 | 1988-03-01 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital information storage and retrieval using video signals |
Also Published As
Publication number | Publication date |
---|---|
JPH0136294B2 (en) | 1989-07-31 |
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