GB1186528A - A Method and a Device for Providing in Analog Form a Signal Depending on the Difference Between Two Variable Quantities which are Available in Digital Form - Google Patents
A Method and a Device for Providing in Analog Form a Signal Depending on the Difference Between Two Variable Quantities which are Available in Digital FormInfo
- Publication number
- GB1186528A GB1186528A GB4470267A GB4470267A GB1186528A GB 1186528 A GB1186528 A GB 1186528A GB 4470267 A GB4470267 A GB 4470267A GB 4470267 A GB4470267 A GB 4470267A GB 1186528 A GB1186528 A GB 1186528A
- Authority
- GB
- United Kingdom
- Prior art keywords
- significant
- counter
- generators
- counters
- output
- 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
- G06J—HYBRID COMPUTING ARRANGEMENTS
- G06J1/00—Hybrid computing arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Automation & Control Theory (AREA)
- Evolutionary Computation (AREA)
- Fuzzy Systems (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Complex Calculations (AREA)
- Control Of Position Or Direction (AREA)
Abstract
1,186,528. Digital/analogue converters. CEAPEREGO S.p.A. 2 Oct., 1967 [4 Oct., 1966], No. 44702/67. Heading G4H. The difference between two digital numbers, by which counters C1-C2, C3-C4 are preset, is determined in analogue form by feeding clock pulses to the counters which, when they reach their maximum counts, apply signals to generators G1, G2. The generators G1, G2 feed squarewave signals to a phase discriminator D, the output voltage from which varies in accordance with the time interval between its inputs. The apparatus may be used for positioning a movable member, the required and actual positions of which are entered by switches I 1 -I 6 , I 7 -I 12 (Fig. 4) into counter C 1 -C 6 , C 7 -C 12 respectively. Each counter comprises three parts, each of two decades, each part being fed with clock pulses of frequency fo. The discriminator D1 receiving the signals from generators G1, G4 associated with the two most significant digits of each counter is first used to control the member until its output becomes zero when the output from the discriminator D2 is used. In the embodiment of Fig. 5 (not shown), all except the most significant part of the counters have three decades, the least significant decade in one part being repeated as the most significant decade of the next part. A frequency divider is included in the most significant part of each counter to equalize the output frequencies of the pulse generators.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5554066 | 1966-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1186528A true GB1186528A (en) | 1970-04-02 |
Family
ID=11287802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4470267A Expired GB1186528A (en) | 1966-10-04 | 1967-10-02 | A Method and a Device for Providing in Analog Form a Signal Depending on the Difference Between Two Variable Quantities which are Available in Digital Form |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1588114A1 (en) |
GB (1) | GB1186528A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2332974C3 (en) * | 1973-06-28 | 1981-12-24 | Siemens AG, 1000 Berlin und 8000 München | Circuit arrangement for forming a size proportional to the difference between two pulse trains |
-
1967
- 1967-10-02 GB GB4470267A patent/GB1186528A/en not_active Expired
- 1967-10-03 DE DE19671588114 patent/DE1588114A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1588114A1 (en) | 1970-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |