JPS6473911A - Digital filter - Google Patents
Digital filterInfo
- Publication number
- JPS6473911A JPS6473911A JP23175887A JP23175887A JPS6473911A JP S6473911 A JPS6473911 A JP S6473911A JP 23175887 A JP23175887 A JP 23175887A JP 23175887 A JP23175887 A JP 23175887A JP S6473911 A JPS6473911 A JP S6473911A
- Authority
- JP
- Japan
- Prior art keywords
- delay
- output
- multiplication
- delay elements
- data
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To expand number of bits while decreasing number of delay elements by adding a multiplication output group being the result of multiplying a prescribed multiplication coefficient to outputs of a delay circuit of each stage respectively and a multiplication output obtained by multiplying 1/M<r> to the addition output so as to obtain an output data. CONSTITUTION:The number of stages (r) of the delay circuit is selected, as three, three delay element pair 41, 42, 43 and 81, 82, 83 are used respectively, and a multiplication coefficient 1/M<3> is used as the multiplication coefficient 1/M<r> (M is number of delay element) of a multiplier 7. The same bit number as the data word length of an input data Xi is used for the delay elements 41, 42, 43 and the same bit number as the data word length of an output data Qi whose bit number is expanded is used for the delay elements 81, 82, 83. Thus, the number of the delay elements is reduced in the circuit and the hardware constitution is simplified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23175887A JPS6473911A (en) | 1987-09-16 | 1987-09-16 | Digital filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23175887A JPS6473911A (en) | 1987-09-16 | 1987-09-16 | Digital filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6473911A true JPS6473911A (en) | 1989-03-20 |
Family
ID=16928571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23175887A Pending JPS6473911A (en) | 1987-09-16 | 1987-09-16 | Digital filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6473911A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011044772A (en) * | 2009-08-19 | 2011-03-03 | Shimadzu Corp | Digital filter and material testing machine |
| EP3355030A1 (en) * | 2017-01-31 | 2018-08-01 | Shimadzu Corporation | Material tester |
-
1987
- 1987-09-16 JP JP23175887A patent/JPS6473911A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011044772A (en) * | 2009-08-19 | 2011-03-03 | Shimadzu Corp | Digital filter and material testing machine |
| EP3355030A1 (en) * | 2017-01-31 | 2018-08-01 | Shimadzu Corporation | Material tester |
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