GB1239384A - - Google Patents
Info
- Publication number
- GB1239384A GB1239384A GB2677167A GB1239384DA GB1239384A GB 1239384 A GB1239384 A GB 1239384A GB 2677167 A GB2677167 A GB 2677167A GB 1239384D A GB1239384D A GB 1239384DA GB 1239384 A GB1239384 A GB 1239384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ref
- stage
- input
- analogue
- amplifier
- 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
- H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
1,239,384. A/D converters. GENERAL ELECTRIC CO. Ltd. 9 Sept., 1968 [9 June, 1967], No. 26771/67. Heading G4H. An analogue to digital converter comprises series connected stages, each stage comparing its analogue input V in with a reference signal V ref to derive a monophylic or straight binary coded output bit in accordance with whether V in is greater or less than V ref and transmitting an analogue signal (2V in - V ref ) (for the monophylic code) or V in - V ref if V in > V ref (for the straight binary code) to the input terminal of the next stage. Each stage comprises an amplifier 2 (Fig. 4) with a feedback circuit including a bridge 6, 7, 8, 9 the input to the next stage being taken across a resistance R 1 in one diagonal of the bridge, the digital output signal 16 being taken from the output of the amplifier 2. The resistance R 1 may be connected to the input of a differential amplifier 18 connected to the next stage or the amplifier 2 may be a differential amplifier. In the embodiment of Fig. 4 the reference voltage is subtracted from the analogue voltage at a junction 15 the output bits from the stages being in reflected binary code. For all stages except the first the reference voltage equals ¢V max , the first stage comparing the input voltage with zero to derive a polarity bit. In the embodiment of Fig. 7 (not shown) the reference signal is only subtracted before the signal is fed to the next stage if the digital output of the stage is " 1 ".
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2677167 | 1967-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1239384A true GB1239384A (en) | 1971-07-14 |
Family
ID=10248936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2677167A Expired GB1239384A (en) | 1967-06-09 | 1967-06-09 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1239384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2145889A (en) * | 1983-08-31 | 1985-04-03 | British Aerospace | Analog-to-digital conversion |
-
1967
- 1967-06-09 GB GB2677167A patent/GB1239384A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2145889A (en) * | 1983-08-31 | 1985-04-03 | British Aerospace | Analog-to-digital conversion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3710374A (en) | Dual-slope and analog-to-digital converter wherein two analog input signals are selectively integrated with respect to time | |
| GB952720A (en) | Improvements in or relating to pulse code modulation decoders | |
| GB1040614A (en) | Improvements in or relating to code translation systems | |
| GB1204228A (en) | Analog-to-digital cyclic forward feed successive approximation conversion equipment | |
| GB1290429A (en) | ||
| GB1196185A (en) | Digital-to-Analog Converters | |
| US3858199A (en) | Tracking level detector | |
| US4353059A (en) | Multithreshold converter utilizing reference tracking amplifiers | |
| US4393368A (en) | Multithreshold A/D converter utilizing error amplifiers | |
| GB1039342A (en) | Improvements in or relating to decoding equipment | |
| GB1250778A (en) | ||
| GB1154828A (en) | Non-Linear Decoder | |
| US3577139A (en) | Analog-to-digital converter | |
| GB1258482A (en) | ||
| GB1082610A (en) | Analog to digital converter | |
| GB1239384A (en) | ||
| GB1099896A (en) | Encoder for sampled analogue signals | |
| GB1047276A (en) | Improvements in or relating to analogue-to-digital converters | |
| US3936820A (en) | Analog-to-digital converter | |
| US3381142A (en) | Voltage comparison and gating circuit | |
| US3225345A (en) | Digital-to-analog converter | |
| GB1165170A (en) | Improvements in or relating to Coding Systems | |
| GB1178268A (en) | Analog to Multi-Valued Code Conversion System. | |
| GB1266962A (en) | ||
| US3219997A (en) | Analog-to-digital converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |