GB811267A - Analog to digital translators - Google Patents
Analog to digital translatorsInfo
- Publication number
- GB811267A GB811267A GB34887/57A GB3488757A GB811267A GB 811267 A GB811267 A GB 811267A GB 34887/57 A GB34887/57 A GB 34887/57A GB 3488757 A GB3488757 A GB 3488757A GB 811267 A GB811267 A GB 811267A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- read
- brushes
- pulses
- lag
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
- G06M1/276—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using mechanically-actuated contacts
-
- 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
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/26—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word, e.g. there is a given radix and the weights are powers of this radix
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
811,267. Electric selective signalling systems. STANDARD TELEPHONES & CABLES Ltd. Nov. 8, 1957 [Nov. 9, 1956], No. 34887/57. Class 40 (1). In a shaft digitizer (that is a device for producing digital electric signals representative of a shaft position) using a plurality of monophylically coded binary discs appropriately geared together, there being one for each decimal denomination, and in which each disc, except the units order disc, has two sets of sensing brushes-a lead set and a lag set-(the lead set being positioned slightly ahead of the theoretical sensing position and the lag set slightly behind), the actual set of brushes used for reading any one disc is determined by whether the adjacent lower order disc is registering 0 to 4 or 5 to 9. As described, three discs 10, 11, 12, Fig. 1, are read serially by bit and serially by disc starting with the bits of the units disc 10, and each disc is so coded (see Fig. 2, not shown), that the last bit to be read is 0 for the range 0 to 4 and 1 for the range 5 to 9. A complete read operation is as follows: initially a read matrix is controlled so as to pass only pulses coming from disc 10; a scan generator then pulses four lines 24 to 27 in succession, thereby reading out the units disc 10 to an output; the last bit read from disc 10 is examined by an and gate 28 and if it is a 1 it causes a lead line 35 of a selector 34 to become positive-it it is an 0 it causes a lag line 36 to become positive; the read matrix is then controlled to pass pulses from disc 11 and the next four pulses from the scan generator, applied successively to leads 24 to 27, are routed via a scan matrix to either the lead brushes or the lag brushes as determined by the selector 34; this causes the read out of the tens disc and the hundreds disc 12 is read out in a similar manner.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US621399A US2958861A (en) | 1956-11-09 | 1956-11-09 | Analog to digital translators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB811267A true GB811267A (en) | 1959-04-02 |
Family
ID=24490001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34887/57A Expired GB811267A (en) | 1956-11-09 | 1957-11-08 | Analog to digital translators |
Country Status (6)
Country | Link |
---|---|
US (1) | US2958861A (en) |
BE (1) | BE562226A (en) |
DE (1) | DE1051540B (en) |
FR (1) | FR72459E (en) |
GB (1) | GB811267A (en) |
NL (1) | NL222304A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3141160A (en) * | 1962-09-28 | 1964-07-14 | Hewlett Packard Co | Electro-mechanical signalling apparatus |
US3230522A (en) * | 1962-12-14 | 1966-01-18 | Gen Precision Inc | Electromechanical trigger for encoder application for non-ambiguity readout |
US3238524A (en) * | 1962-12-21 | 1966-03-01 | Gen Precision Inc | In line brushes for drum type encoders for true "v" scan application for true binary code |
US3197764A (en) * | 1963-01-07 | 1965-07-27 | Gen Precision Inc | Unambiguous encoder |
US3404395A (en) * | 1964-11-23 | 1968-10-01 | Mangood Corp | Electromechanical accumulator |
DE102009016073B4 (en) * | 2008-04-21 | 2013-06-20 | Bund Der Freien Waldorfschulen E.V. | demonstration device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2866184A (en) * | 1953-12-14 | 1958-12-23 | Gen Precision Lab Inc | Analog to digital converter |
US2750584A (en) * | 1954-03-29 | 1956-06-12 | Gen Precision Lab Inc | Analog to digital converter |
US2779539A (en) * | 1954-04-19 | 1957-01-29 | Bell Telephone Labor Inc | Multiple code wheel analogue-digital translator |
US2826252A (en) * | 1955-01-12 | 1958-03-11 | Harold D Dickstein | Automatic shaft position data encoder |
-
0
- BE BE562226D patent/BE562226A/xx unknown
- NL NL222304D patent/NL222304A/xx unknown
-
1956
- 1956-11-09 US US621399A patent/US2958861A/en not_active Expired - Lifetime
-
1957
- 1957-11-08 FR FR72459D patent/FR72459E/en not_active Expired
- 1957-11-08 GB GB34887/57A patent/GB811267A/en not_active Expired
- 1957-11-09 DE DEI13947A patent/DE1051540B/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR72459E (en) | 1960-04-14 |
US2958861A (en) | 1960-11-01 |
BE562226A (en) | 1900-01-01 |
DE1051540C2 (en) | 1959-08-20 |
NL222304A (en) | 1900-01-01 |
DE1051540B (en) | 1959-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2849704A (en) | Data processing system | |
GB811267A (en) | Analog to digital translators | |
GB1227829A (en) | ||
GB1314437A (en) | Numerical display systems | |
US3345616A (en) | Devices for analyzing physical phenomenons, and in particular nuclear phenomenons | |
US3187303A (en) | Digital peak reader | |
ES347416A1 (en) | Encoder having an analog input signal centering arrangement | |
GB955295A (en) | Converter devices | |
US3691554A (en) | Code converters | |
GB1351308A (en) | Data processing | |
GB970938A (en) | Automatic telecommunication exchange systems | |
GB1325193A (en) | Signal generators | |
GB932502A (en) | Number comparing systems | |
US3584201A (en) | Digitally controlled pulse register | |
GB1220680A (en) | Improvements relating to data transmission systems | |
GB1240611A (en) | Device for automatically displaying the status of logic elements and changing their status | |
GB1400172A (en) | Register apparatus | |
US3182306A (en) | Converter | |
GB790323A (en) | Electrical checking circuit | |
US3052880A (en) | Analog to digital converter | |
GB894738A (en) | Display device | |
SU622202A1 (en) | Code-converting arrangement | |
GB1262003A (en) | A device for converting information in an office machine or the like from mechanical into electrical form | |
GB883709A (en) | A device for converting an angle of rotation into a binary number | |
ES345061A2 (en) | Analogue-to-Digital Multiplex Coder |