JPS567521A - Ad conversion system - Google Patents
Ad conversion systemInfo
- Publication number
- JPS567521A JPS567521A JP8366279A JP8366279A JPS567521A JP S567521 A JPS567521 A JP S567521A JP 8366279 A JP8366279 A JP 8366279A JP 8366279 A JP8366279 A JP 8366279A JP S567521 A JPS567521 A JP S567521A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- amplitude
- input signal
- auxiliary voltage
- minimum decomposition
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To substantially extend the number of processing bits, by converting the auxiliary voltage signal in which the peak time point is coincident with the sampling signal once by n times in the frequency and the amplitude is (1-1/n) of the minimum decomposition voltage, after the addition with the input signal. CONSTITUTION:The auxiliary voltage signal in which the peak time point is in coincident with once by n times to the sampling signal of the A/D converter 50 in the frequency and the amplitude is (1-1/n) of the minimum decomposition voltage, is stored in the waveform memory unit 51. Further, the code of the input signal Vi is detected at the code discriminator 52, and the auxiliary voltage signal Vo required is picked up from the waveform memory unit 51 by this detected output. Further, the input signal Vi and the auxiliary voltage signal are added at the adder 53 and input to the A/D converter 50. Thus, the probability calculating the analog input signal having the amplitude of 1/n of the minimum decomposition voltage into the A/D conversion without missing can be increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8366279A JPS567521A (en) | 1979-07-02 | 1979-07-02 | Ad conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8366279A JPS567521A (en) | 1979-07-02 | 1979-07-02 | Ad conversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS567521A true JPS567521A (en) | 1981-01-26 |
Family
ID=13808657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8366279A Pending JPS567521A (en) | 1979-07-02 | 1979-07-02 | Ad conversion system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS567521A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129022A (en) * | 1981-02-03 | 1982-08-10 | Komatsu Ltd | Analog-to-digital converter |
| JPS6064525A (en) * | 1983-07-29 | 1985-04-13 | ア−ル・アラン・ベルチヤ− | A/d converting and d/a converting method and device |
| JPS6341936U (en) * | 1986-09-03 | 1988-03-19 | ||
| JPH02135822A (en) * | 1988-11-16 | 1990-05-24 | Yuhshin Co Ltd | Analog/digital converter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5068258A (en) * | 1973-10-17 | 1975-06-07 |
-
1979
- 1979-07-02 JP JP8366279A patent/JPS567521A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5068258A (en) * | 1973-10-17 | 1975-06-07 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129022A (en) * | 1981-02-03 | 1982-08-10 | Komatsu Ltd | Analog-to-digital converter |
| JPS6064525A (en) * | 1983-07-29 | 1985-04-13 | ア−ル・アラン・ベルチヤ− | A/d converting and d/a converting method and device |
| JPS6341936U (en) * | 1986-09-03 | 1988-03-19 | ||
| JPH02135822A (en) * | 1988-11-16 | 1990-05-24 | Yuhshin Co Ltd | Analog/digital converter |
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