JPS5639616A - Feedback type digital filter - Google Patents
Feedback type digital filterInfo
- Publication number
- JPS5639616A JPS5639616A JP11553979A JP11553979A JPS5639616A JP S5639616 A JPS5639616 A JP S5639616A JP 11553979 A JP11553979 A JP 11553979A JP 11553979 A JP11553979 A JP 11553979A JP S5639616 A JPS5639616 A JP S5639616A
- Authority
- JP
- Japan
- Prior art keywords
- delay
- circuit
- register
- output signal
- signal
- 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
- 230000002159 abnormal effect Effects 0.000 abstract 3
- 230000010355 oscillation Effects 0.000 abstract 3
- 230000002265 prevention Effects 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000012937 correction Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
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
- H03H17/04—Recursive filters
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Time-Division Multiplex Systems (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To attain processing for abnormal oscillation prevention without any error by making conversion corrections for the abnormal oscillation prevention with regard to the contents of the initial-stage delay register among cascaded delay registers or its output signal. CONSTITUTION:Two delay resisters 12 and 13, interposed in the feedback loop, consist of N cascaded delay registers R1...RN and R1'...RN' of one-word capacity that delay input signals by one sample time respectively. The overflow of the input signal of the initial-stage delay register R1 of register 12, namely, the output signal of subtracting circuit 3 is detected by overflow detecting circuit 14, whose detection signal is held by holding circuit 15 and supplied as a control signal to conversion correctins circuit 16. Here, the output signal is previously inputted as an input signal to circuit 16, the output signal of which is fed back to register R1 as corrected data. Thus, the processing for abnormal oscillation prevention can carried out without any error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11553979A JPS5639616A (en) | 1979-09-08 | 1979-09-08 | Feedback type digital filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11553979A JPS5639616A (en) | 1979-09-08 | 1979-09-08 | Feedback type digital filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5639616A true JPS5639616A (en) | 1981-04-15 |
| JPH0311124B2 JPH0311124B2 (en) | 1991-02-15 |
Family
ID=14665028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11553979A Granted JPS5639616A (en) | 1979-09-08 | 1979-09-08 | Feedback type digital filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5639616A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62115246A (en) * | 1985-11-15 | 1987-05-26 | T M Giken Kk | Buckwheat noodle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54554A (en) * | 1977-06-03 | 1979-01-05 | Hitachi Ltd | Digital filter |
-
1979
- 1979-09-08 JP JP11553979A patent/JPS5639616A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54554A (en) * | 1977-06-03 | 1979-01-05 | Hitachi Ltd | Digital filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62115246A (en) * | 1985-11-15 | 1987-05-26 | T M Giken Kk | Buckwheat noodle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0311124B2 (en) | 1991-02-15 |
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