JPS5478950A - Automatic equalizer - Google Patents
Automatic equalizerInfo
- Publication number
- JPS5478950A JPS5478950A JP14603977A JP14603977A JPS5478950A JP S5478950 A JPS5478950 A JP S5478950A JP 14603977 A JP14603977 A JP 14603977A JP 14603977 A JP14603977 A JP 14603977A JP S5478950 A JPS5478950 A JP S5478950A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- signal
- capacitor
- circuit
- pulse
- 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
Landscapes
- Filters And Equalizers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
PURPOSE: To establish the automatic equalizer simple and stable, by detecting the difference between the maximum and minimum value of leading and trailing of the received pulse signal and controlling the corrective means so that the detected value can be minimized.
CONSTITUTION: Demodulation signal is fed to the terminal 1, and the pulse signal of (a) is received at the output of the switch circuit 6 at a knwon time. The switch circuit 13 is driven, the voltage across the capacitor 11 is erased in advance, the switch 7 is opened with the signal (c), and the maximum value Pm1 at the leading period of reception pulse is stored in the capacitor 11. Similarly, after erasing the voltage of the capacitor 12 with the switch 14, the switch 8 is opened with the signal (e) and the maximum value Pm2 of the trailing period of the reception pulse is stored in the capacitor 12. The polarity of the difference of the voltages across the capacitors 11 and 12 is judged with the comparison circuit 15 and the switch circuit 6 is controlled with the control circuit 16, and the correction circuits 2 to 5 are inserted. When the switch 6 is fixed at the point where the polarity of the output of the circuit 15 is changed, Pm1-Pm2 is minimized and the signal corrected for optimum manner can be outputted from the terminal 17.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14603977A JPS5826862B2 (en) | 1977-12-07 | 1977-12-07 | automatic equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14603977A JPS5826862B2 (en) | 1977-12-07 | 1977-12-07 | automatic equalizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5478950A true JPS5478950A (en) | 1979-06-23 |
| JPS5826862B2 JPS5826862B2 (en) | 1983-06-06 |
Family
ID=15398715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14603977A Expired JPS5826862B2 (en) | 1977-12-07 | 1977-12-07 | automatic equalizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826862B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521644A (en) * | 1978-08-04 | 1980-02-15 | Oki Electric Ind Co Ltd | Equalizer |
| JPS5629549U (en) * | 1979-08-10 | 1981-03-20 | ||
| JPS59161132A (en) * | 1983-03-04 | 1984-09-11 | Fujitsu Ltd | variable equalizer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012974U (en) * | 1983-07-05 | 1985-01-29 | 株式会社シマノ | spinning reel |
-
1977
- 1977-12-07 JP JP14603977A patent/JPS5826862B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521644A (en) * | 1978-08-04 | 1980-02-15 | Oki Electric Ind Co Ltd | Equalizer |
| JPS5629549U (en) * | 1979-08-10 | 1981-03-20 | ||
| JPS5921564Y2 (en) * | 1979-08-10 | 1984-06-26 | 日本電信電話株式会社 | Selective automatic equalizer |
| JPS59161132A (en) * | 1983-03-04 | 1984-09-11 | Fujitsu Ltd | variable equalizer |
| JPH0447496B2 (en) * | 1983-03-04 | 1992-08-04 | Fujitsu Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5826862B2 (en) | 1983-06-06 |
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