JPS6430318A - Variable band filter - Google Patents
Variable band filterInfo
- Publication number
- JPS6430318A JPS6430318A JP18469787A JP18469787A JPS6430318A JP S6430318 A JPS6430318 A JP S6430318A JP 18469787 A JP18469787 A JP 18469787A JP 18469787 A JP18469787 A JP 18469787A JP S6430318 A JPS6430318 A JP S6430318A
- Authority
- JP
- Japan
- Prior art keywords
- band
- variable
- fold
- digital control
- control
- 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
- Filters That Use Time-Delay Elements (AREA)
- Networks Using Active Elements (AREA)
Abstract
PURPOSE:To vary a band in a wide range by using a variable capacitor capable of generating an element value which is the multiple of reciprocal of an arbitrary integer of a basic value at a special range by the ON and OFF control of a switch and making variable a band with a digital control from an external part. CONSTITUTION:By using a variable capacitor 13 to be able to the arbitrary reverse integer-fold element value of a basic value in the 1-1/(2<n>) range by the ON the and OFF control of a switch, a band is made variable by the digital control from an external part. Thus, a variable band filter having an arbitrary integer-fold band of a basic band width can be realized in the 1-2<n>-fold wide range by the digital control of an (n) bit, a non-linear distortion does not occur even due to a large amplitude action and the temperature or the change with the passage of time can be stabilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18469787A JPS6430318A (en) | 1987-07-25 | 1987-07-25 | Variable band filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18469787A JPS6430318A (en) | 1987-07-25 | 1987-07-25 | Variable band filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6430318A true JPS6430318A (en) | 1989-02-01 |
Family
ID=16157796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18469787A Pending JPS6430318A (en) | 1987-07-25 | 1987-07-25 | Variable band filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6430318A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3285397A1 (en) * | 2016-08-12 | 2018-02-21 | The Boeing Company | Active bandpass filter circuit with adjustable resistance device and adjustable capacitance device |
-
1987
- 1987-07-25 JP JP18469787A patent/JPS6430318A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3285397A1 (en) * | 2016-08-12 | 2018-02-21 | The Boeing Company | Active bandpass filter circuit with adjustable resistance device and adjustable capacitance device |
| JP2018067907A (en) * | 2016-08-12 | 2018-04-26 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Active bandpass filter circuit with adjustable resistance device and adjustable capacitance device |
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