JPS5481748A - Variable filter of non-circulation type - Google Patents
Variable filter of non-circulation typeInfo
- Publication number
- JPS5481748A JPS5481748A JP14953177A JP14953177A JPS5481748A JP S5481748 A JPS5481748 A JP S5481748A JP 14953177 A JP14953177 A JP 14953177A JP 14953177 A JP14953177 A JP 14953177A JP S5481748 A JPS5481748 A JP S5481748A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- variable
- adder
- multiplier
- coefficient
- 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
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
Abstract
PURPOSE:To save the means designing all the variable performences to be converted in advance and to make fine the width of variable step, by separating the coefficient of the basic filter and the variable coefficient of the variable multiplier. CONSTITUTION:The first delay circuit 2 located at the input terminal, multipliers 21 and 22, and the operation circuit 2 having the first transfer fuction with the first adder 1/2, and the second operation circuit of variable coefficient 2cos in series connection of the circuit 2, second delay unit, second variable multiplier T and the first adder 1/2, are provided. Further, the third operation circuit of the variable coefficient 2cos having the same constitution as the circuit connected in series is provided, the output of the circuit 2 is connected to the second operation circuit via the variable number multiplier T, and the output of the second operation is connected to the adder of the third operation circuit via the variable multiplier T. Further, the output of the circuit 2 and second and third operation circuits is fed to the adder via the operation circuits 3 to 7 with the same constitution as the circuit 2 and the sum is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14953177A JPS5481748A (en) | 1977-12-12 | 1977-12-12 | Variable filter of non-circulation type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14953177A JPS5481748A (en) | 1977-12-12 | 1977-12-12 | Variable filter of non-circulation type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5481748A true JPS5481748A (en) | 1979-06-29 |
| JPS6113655B2 JPS6113655B2 (en) | 1986-04-15 |
Family
ID=15477164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14953177A Granted JPS5481748A (en) | 1977-12-12 | 1977-12-12 | Variable filter of non-circulation type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5481748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10403906B2 (en) | 2016-12-09 | 2019-09-03 | Toyota Jidosha Kabushiki Kaisha | Fuel cell electrode catalyst, method of producing the same, and fuel cell |
-
1977
- 1977-12-12 JP JP14953177A patent/JPS5481748A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10403906B2 (en) | 2016-12-09 | 2019-09-03 | Toyota Jidosha Kabushiki Kaisha | Fuel cell electrode catalyst, method of producing the same, and fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6113655B2 (en) | 1986-04-15 |
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