JPS6424619A - Equalizing circuit - Google Patents
Equalizing circuitInfo
- Publication number
- JPS6424619A JPS6424619A JP18204487A JP18204487A JPS6424619A JP S6424619 A JPS6424619 A JP S6424619A JP 18204487 A JP18204487 A JP 18204487A JP 18204487 A JP18204487 A JP 18204487A JP S6424619 A JPS6424619 A JP S6424619A
- Authority
- JP
- Japan
- Prior art keywords
- pass filter
- low pass
- output signal
- equalizing circuit
- waveform
- 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
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE:To improve the negative peak of an isolated wave of a thin film head by constituting the titled circuit by a delay means delaying an input signal by a prescribed time and perfectly reflecting the signal at an output terminal, a cosine equalizing circuit, a matching means of the delay means, a low pass filter means, and an addition means adding an output signal of the low pass filter means and an output signal of the cosine equalizing circuit. CONSTITUTION:The delay times t1, t3 of delay lines 1, 3 and a delay time td of the low pass filter 9 are set as shown in the following equation. Thus, the peak of an output signal S6 of the low pass filter 9 is set to a similar position as a negative peak of an output signal S5 of a cosine equalizing circuit 11; t1=(ta+tb)/2, t2=td. A half value width of the output signal S6 of the low pass filter 9 is approximated to a half value width of negative peaks (a), (b) of the waveform S0 by setting the constant such as the cut-off frequency of the low pass filter 9 properly. Then the waveform S6 and the output signal S5 of the cosine equalizing circuit 11 are added by an adder 10 to eliminate most of the negative peaks (a), (b) in the waveform S0 thereby forming a waveform S7 where the half value width of the isolated wave is thin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18204487A JPS6424619A (en) | 1987-07-21 | 1987-07-21 | Equalizing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18204487A JPS6424619A (en) | 1987-07-21 | 1987-07-21 | Equalizing circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424619A true JPS6424619A (en) | 1989-01-26 |
Family
ID=16111359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18204487A Pending JPS6424619A (en) | 1987-07-21 | 1987-07-21 | Equalizing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424619A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04229223A (en) * | 1990-12-27 | 1992-08-18 | Sanyo Kokusaku Pulp Co Ltd | Polystyrene resin foam sheet and its manufacture |
-
1987
- 1987-07-21 JP JP18204487A patent/JPS6424619A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04229223A (en) * | 1990-12-27 | 1992-08-18 | Sanyo Kokusaku Pulp Co Ltd | Polystyrene resin foam sheet and its manufacture |
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