JPS6437172A - Digital signal processing circuit - Google Patents
Digital signal processing circuitInfo
- Publication number
- JPS6437172A JPS6437172A JP62193006A JP19300687A JPS6437172A JP S6437172 A JPS6437172 A JP S6437172A JP 62193006 A JP62193006 A JP 62193006A JP 19300687 A JP19300687 A JP 19300687A JP S6437172 A JPS6437172 A JP S6437172A
- Authority
- JP
- Japan
- Prior art keywords
- digital signal
- sigmacn
- filter
- signal processing
- processing circuit
- 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
Abstract
PURPOSE:To prevent the degrading of bit-use factor by connecting a table conversion circuit for digital level correction with the output stage of a digital filter. CONSTITUTION:An input signal is filtered by an FIR filter 1 and supplied to the address of a ROM 2 for level conversion. Assuming that the SIGMACn of the FIR filter 1 is 140, a multiplication processing of (address)X256/140 is executed by means of a table conversion. Accordingly, in the output of the ROM 2, an output equal to an input to the filter can be obtained. Thus, even in case the SIGMACn of the FIR filter is not 2<m>, a digital signal in the same level as that in case the SIGMACn is 2<m> can finally be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62193006A JPS6437172A (en) | 1987-08-01 | 1987-08-01 | Digital signal processing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62193006A JPS6437172A (en) | 1987-08-01 | 1987-08-01 | Digital signal processing circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6437172A true JPS6437172A (en) | 1989-02-07 |
Family
ID=16300634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62193006A Pending JPS6437172A (en) | 1987-08-01 | 1987-08-01 | Digital signal processing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6437172A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6190575A (en) * | 1984-10-09 | 1986-05-08 | Matsushita Electric Ind Co Ltd | Video signal processor |
-
1987
- 1987-08-01 JP JP62193006A patent/JPS6437172A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6190575A (en) * | 1984-10-09 | 1986-05-08 | Matsushita Electric Ind Co Ltd | Video signal processor |
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