FR2233757A1 - Analogue digital angle converter - processes demodulated signals the result being independent of frequency - Google Patents
Analogue digital angle converter - processes demodulated signals the result being independent of frequencyInfo
- Publication number
- FR2233757A1 FR2233757A1 FR7321483A FR7321483A FR2233757A1 FR 2233757 A1 FR2233757 A1 FR 2233757A1 FR 7321483 A FR7321483 A FR 7321483A FR 7321483 A FR7321483 A FR 7321483A FR 2233757 A1 FR2233757 A1 FR 2233757A1
- Authority
- FR
- France
- Prior art keywords
- counter
- angle
- series
- modulator
- phase
- 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
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
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
An A-D angle converter, has a coder giving two analogue signals proportional to the sine and cosine of the angle to be measured, a modulator with two symmetric inputs fed by the analogue signals and two counter-dividers fed with pulses from a clocking device. The first counter-divider provides two series of square waveforms in quadrature applied to the modulation inputs of the modulator. A pass band filter at the modulator output furnishes a sinusoidal signal out of phase with the angle to be measured with respect to the first series of square waves. A pulse generator fed by the sinusoidal signal furnishes pulses out of phase with the angle to be measured regarding the first series of square waves from the first counter-divider. An output memory has its p stages connected to the second counter-divider, the coupling being controlled by the out of phase pulses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7321483A FR2233757A1 (en) | 1973-06-13 | 1973-06-13 | Analogue digital angle converter - processes demodulated signals the result being independent of frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7321483A FR2233757A1 (en) | 1973-06-13 | 1973-06-13 | Analogue digital angle converter - processes demodulated signals the result being independent of frequency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2233757A1 true FR2233757A1 (en) | 1975-01-10 |
| FR2233757B1 FR2233757B1 (en) | 1976-07-23 |
Family
ID=9120884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7321483A Granted FR2233757A1 (en) | 1973-06-13 | 1973-06-13 | Analogue digital angle converter - processes demodulated signals the result being independent of frequency |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2233757A1 (en) |
-
1973
- 1973-06-13 FR FR7321483A patent/FR2233757A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2233757B1 (en) | 1976-07-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |