GB1311010A - Analogue-digital conversion - Google Patents
Analogue-digital conversionInfo
- Publication number
- GB1311010A GB1311010A GB591670*[A GB591670A GB1311010A GB 1311010 A GB1311010 A GB 1311010A GB 591670 A GB591670 A GB 591670A GB 1311010 A GB1311010 A GB 1311010A
- Authority
- GB
- United Kingdom
- Prior art keywords
- integrator
- linearly
- dec
- counter
- voltage
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- 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
- H03M1/50—Analogue/digital converters with intermediate conversion to time interval
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
1311010 A/D converters SIEMENS AG 11 Dec 1970 [13 Dec 1969] 59161/70 Heading G4H In a non-linear dual ramp A/D converter, the integrating member is charged or discharged by a time-varying signal. A squareroot relation between digital output and analogue input is obtained by applying the analogue input Ux to a Miller integrator R1, V1, C1 for a period determined by a counter Z and clock source T to charge capacitor C1 linearly and then applying a constant reference voltage Uc to a second integrator R3, V2, C2 to apply a linearly increasing voltage to the first integrator over resistor R2 and discharge C1 at a rate which increases linearly with time. Counter Z is stopped when the voltage across C1 reaches zero.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691962697 DE1962697A1 (en) | 1969-12-13 | 1969-12-13 | Method for non-linear analog-digital conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1311010A true GB1311010A (en) | 1973-03-21 |
Family
ID=5753850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB591670*[A Expired GB1311010A (en) | 1969-12-13 | 1970-12-11 | Analogue-digital conversion |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1962697A1 (en) |
| FR (1) | FR2070843B3 (en) |
| GB (1) | GB1311010A (en) |
| NL (1) | NL7015415A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59191929A (en) * | 1983-04-15 | 1984-10-31 | Canon Inc | Compression type analog/digital converter |
-
1969
- 1969-12-13 DE DE19691962697 patent/DE1962697A1/en active Pending
-
1970
- 1970-10-21 NL NL7015415A patent/NL7015415A/xx unknown
- 1970-12-09 FR FR707044294A patent/FR2070843B3/fr not_active Expired
- 1970-12-11 GB GB591670*[A patent/GB1311010A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1962697A1 (en) | 1971-06-24 |
| NL7015415A (en) | 1971-06-15 |
| FR2070843B3 (en) | 1973-08-10 |
| FR2070843A7 (en) | 1971-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |