JPS54121612A - Binary pulse reproduction repeater - Google Patents
Binary pulse reproduction repeaterInfo
- Publication number
- JPS54121612A JPS54121612A JP2959378A JP2959378A JPS54121612A JP S54121612 A JPS54121612 A JP S54121612A JP 2959378 A JP2959378 A JP 2959378A JP 2959378 A JP2959378 A JP 2959378A JP S54121612 A JPS54121612 A JP S54121612A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- level
- fluctuation
- identification
- repeater
- 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
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
- H04L25/062—Setting decision thresholds using feedforward techniques only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Manipulation Of Pulses (AREA)
- Dc Digital Transmission (AREA)
Abstract
PURPOSE:To reduce the error of the identification and reproduction for the clamping circuit which is used to the repeater for compensation of the DC component fluctuation by securing the automatic switching through which the DC clamp level is lowered less than the identification level at the nonsignal time and then fixed to the proper level at the normal signal input time. CONSTITUTION:The double pulse reproduction repeater is constituted with automatic gain fluctuation circuit 15, amplifier 16 and amplitude detector 17 which form the equivalent amplification system to compensate the level fluctuation of the input binary pulse signal, plus transistor TR2 forming the clamping circuit to compensate the DC component fluctuation of the input binary pulse signal and switching TR1 to switch the DC bias. When the DC control voltage of detector 17 exceeds the threshold level preset to voltage comparator 20, TR1 of clamping circuit is turned on and off to control the voltage at point 22 of the base side of TR22. And the DC control voltage of circuit 15 is switched automatically to be applied to identification reproducing circuit 25.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2959378A JPS54121612A (en) | 1978-03-14 | 1978-03-14 | Binary pulse reproduction repeater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2959378A JPS54121612A (en) | 1978-03-14 | 1978-03-14 | Binary pulse reproduction repeater |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54121612A true JPS54121612A (en) | 1979-09-20 |
Family
ID=12280362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2959378A Pending JPS54121612A (en) | 1978-03-14 | 1978-03-14 | Binary pulse reproduction repeater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54121612A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5862954A (en) * | 1981-10-08 | 1983-04-14 | Meisei Electric Co Ltd | Data pulse reception circuit |
JP2003069456A (en) * | 2001-08-28 | 2003-03-07 | Dx Antenna Co Ltd | Signal changeover device |
-
1978
- 1978-03-14 JP JP2959378A patent/JPS54121612A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5862954A (en) * | 1981-10-08 | 1983-04-14 | Meisei Electric Co Ltd | Data pulse reception circuit |
JPH0239904B2 (en) * | 1981-10-08 | 1990-09-07 | Meisei Denki Kk | |
JP2003069456A (en) * | 2001-08-28 | 2003-03-07 | Dx Antenna Co Ltd | Signal changeover device |
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