GB1266962A - - Google Patents
Info
- Publication number
- GB1266962A GB1266962A GB1266962DA GB1266962A GB 1266962 A GB1266962 A GB 1266962A GB 1266962D A GB1266962D A GB 1266962DA GB 1266962 A GB1266962 A GB 1266962A
- Authority
- GB
- United Kingdom
- Prior art keywords
- max
- detector
- analogue
- output
- stage includes
- 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
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/44—Sequential comparisons in series-connected stages with change in value of analogue signal
- H03M1/445—Sequential comparisons in series-connected stages with change in value of analogue signal the stages being of the folding type
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
1,266,962. Analogue/digital converters. MICRO CONSULTANTS Ltd. 30 July, 1970 [5 May, 1969], No. 22703/69. Heading G4H. In an analogue/digital converter of the type comprising a plurality of series-connected stages, each stage includes a full-wave rectifier, a detector, two input terminals for currents ŒI and two output terminals, the detector giving a logic " 1 " or " 0 " output in dependence upon the direction in which current flows through the rectifier. In the embodiment of Fig. 1 inputs +I 1 and -I 1 , the relative polarity of which is determined by the detector D1, are rectified and added to constant current sources - I 2 , + I 2 to feed two output signals { | I 1 | - I 2 } and - { | I 1 | - I 2 } to the next stage. The current sources for successive stages have the value Œ¢I max , +“I max &c. In the embodiment of Fig. 3 (not shown) and Fig. 4 each stage includes a differential amplifier TR1, TR3, TR2, TR4 driving a diode bridge circuit D1, D2, D3, D4 which is fed with a fixed offset current I max /2 to give outputs Œ2(|I in -I max /2|).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2270369 | 1969-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1266962A true GB1266962A (en) | 1972-03-15 |
Family
ID=10183737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1266962D Expired GB1266962A (en) | 1969-05-05 | 1969-05-05 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1266962A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2856376A1 (en) * | 1977-12-28 | 1979-07-12 | Sony Corp | POWER COMPARATOR |
| FR2563395A1 (en) * | 1984-04-19 | 1985-10-25 | Centre Nat Rech Scient | MEANS FOR COMPARING A ZERO AND OBTAINING THE ABSOLUTE VALUE OF A CURRENT AND DICHOTOMIC-TYPE DIGOTOMIC ANALOG-TO-DIGITAL CONVERTER INCLUDING SAID MEDIUM |
| EP0492267A2 (en) * | 1990-12-10 | 1992-07-01 | Andrej Zatler | Electronic analog-to-digital converter |
| WO2002078191A2 (en) * | 2001-03-23 | 2002-10-03 | Walter Snoeijs | Current folding cell and circuit comprising at least one folding cell |
| US6972706B2 (en) | 2001-08-10 | 2005-12-06 | Walter Jan Maria Snoeijs | Current folding cell and circuit comprising at least one folding cell |
-
1969
- 1969-05-05 GB GB1266962D patent/GB1266962A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2856376A1 (en) * | 1977-12-28 | 1979-07-12 | Sony Corp | POWER COMPARATOR |
| FR2563395A1 (en) * | 1984-04-19 | 1985-10-25 | Centre Nat Rech Scient | MEANS FOR COMPARING A ZERO AND OBTAINING THE ABSOLUTE VALUE OF A CURRENT AND DICHOTOMIC-TYPE DIGOTOMIC ANALOG-TO-DIGITAL CONVERTER INCLUDING SAID MEDIUM |
| EP0161963A2 (en) * | 1984-04-19 | 1985-11-21 | Centre National De La Recherche Scientifique (Cnrs) | Very high speed dichotomy AD converter |
| EP0161963A3 (en) * | 1984-04-19 | 1985-12-18 | Centre National De La Recherche Scientifique (C.N.R.S.) | Very high speed dichotomy ad converter |
| US4675651A (en) * | 1984-04-19 | 1987-06-23 | Centre National De La Recherche Scientifique | High speed analog digital converter of the dichotomizing type |
| EP0492267A2 (en) * | 1990-12-10 | 1992-07-01 | Andrej Zatler | Electronic analog-to-digital converter |
| EP0492267A3 (en) * | 1990-12-10 | 1993-06-16 | Andrej Zatler | Electronic analog-to-digital converter |
| WO2002078191A2 (en) * | 2001-03-23 | 2002-10-03 | Walter Snoeijs | Current folding cell and circuit comprising at least one folding cell |
| WO2002078191A3 (en) * | 2001-03-23 | 2003-11-27 | Walter Snoeijs | Current folding cell and circuit comprising at least one folding cell |
| US6972706B2 (en) | 2001-08-10 | 2005-12-06 | Walter Jan Maria Snoeijs | Current folding cell and circuit comprising at least one folding cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |