JPS5657345A - Equalizer for local line - Google Patents
Equalizer for local lineInfo
- Publication number
- JPS5657345A JPS5657345A JP13246179A JP13246179A JPS5657345A JP S5657345 A JPS5657345 A JP S5657345A JP 13246179 A JP13246179 A JP 13246179A JP 13246179 A JP13246179 A JP 13246179A JP S5657345 A JPS5657345 A JP S5657345A
- Authority
- JP
- Japan
- Prior art keywords
- generator
- property
- potentiometers
- transversal filter
- integrator
- 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
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
PURPOSE:To avoid occurrence of an error, by securing a simple constitution of the generator of optional amplitude property with use of the tape leader, the cosine function generator, the memory, the integrator and others and at the same time reusing the cut-off component. CONSTITUTION:The transversal filter 200 is connected to the tap weight generator 1 of the transversal filter; and the tape leader 10, the cosine function generator 13, the memories 12, 19 and 20, the integrator 17 and others are provided to the generator 1. Then the cosine of the property of the transmission line is obtained by calculation from the data about the amplitude frequency property of the transmission line which is obtained in a discrete way at the local circuit. This property obtained by the generator 1 is applied several delay elements of serial connection which equalize the local lines, the potentiometers connected to each joint of the delay elements as well as the output of the final delay element, and the transversal filter 200 which gives an addition to the outputs of the potentiometers and then delivers the equalization output. Thus the weighting is given to the potentiometers, and the occurrence of an error can be avoided by the reuse of the cut-off component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13246179A JPS5657345A (en) | 1979-10-16 | 1979-10-16 | Equalizer for local line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13246179A JPS5657345A (en) | 1979-10-16 | 1979-10-16 | Equalizer for local line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5657345A true JPS5657345A (en) | 1981-05-19 |
Family
ID=15081897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13246179A Pending JPS5657345A (en) | 1979-10-16 | 1979-10-16 | Equalizer for local line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5657345A (en) |
-
1979
- 1979-10-16 JP JP13246179A patent/JPS5657345A/en active Pending
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