GB1300586A - Function generator - Google Patents
Function generatorInfo
- Publication number
- GB1300586A GB1300586A GB6334969A GB6334969A GB1300586A GB 1300586 A GB1300586 A GB 1300586A GB 6334969 A GB6334969 A GB 6334969A GB 6334969 A GB6334969 A GB 6334969A GB 1300586 A GB1300586 A GB 1300586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- function generator
- fed
- synchro
- digital
- state
- 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
- H03M1/66—Digital/analogue converters
- H03M1/665—Digital/analogue converters with intermediate conversion to phase of sinusoidal or similar periodical signals
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/02—Digital function generators
- G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06J—HYBRID COMPUTING ARRANGEMENTS
- G06J1/00—Hybrid computing arrangements
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2101/00—Indexing scheme relating to the type of digital function generated
- G06F2101/04—Trigonometric functions
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Automation & Control Theory (AREA)
- Evolutionary Computation (AREA)
- Fuzzy Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
1300586 Digital/analogue converters THORN AUTOMATION Ltd 30 Dec 1969 63349/69 Heading G4H A function generator derives from a multibit binary input signal representative of an angle a multibit binary signal representative of the sine of the angle, this signal being fed to a digital/analogue converter delivering at its output of an amplitude significant A.C. speed.. As described for controlling from an M bit input signal a synchro, M-2 bits or their complement (in dependence on the state of the M-1th bit) control the state of switches 24 in a numerical sine function generator 14. The M-2 outputs of the generator are fed to switches in a ladder network, the A.C. source for which is fed either direct or via an inverter in dependence on the state of the Mth bit. The output of the ladder network is connected via an amplifier to a synchro. A signal phase displaced by M/3 from the first, and derived by adding a value of M/6 to the digital input and similarly applying it to a numerical sine function generator, ladder network and amplifier, is fed to a second input of the synchro. Preferably, a common numerical sine function generator is used for both conversions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6334969A GB1300586A (en) | 1969-12-30 | 1969-12-30 | Function generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6334969A GB1300586A (en) | 1969-12-30 | 1969-12-30 | Function generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1300586A true GB1300586A (en) | 1972-12-20 |
Family
ID=10488954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6334969A Expired GB1300586A (en) | 1969-12-30 | 1969-12-30 | Function generator |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1300586A (en) |
-
1969
- 1969-12-30 GB GB6334969A patent/GB1300586A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |