GB889381A - Improvements relating to circuits for generating electrical signals representing trigonometrical functions - Google Patents

Improvements relating to circuits for generating electrical signals representing trigonometrical functions

Info

Publication number
GB889381A
GB889381A GB13791/57A GB1379157A GB889381A GB 889381 A GB889381 A GB 889381A GB 13791/57 A GB13791/57 A GB 13791/57A GB 1379157 A GB1379157 A GB 1379157A GB 889381 A GB889381 A GB 889381A
Authority
GB
United Kingdom
Prior art keywords
tan
cos
sin
computer
voltages
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
Application number
GB13791/57A
Other languages
English (en)
Inventor
Richard Herbert Booth
Alexander Torrence Macdonald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to NL227221D priority Critical patent/NL227221A/xx
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB13791/57A priority patent/GB889381A/en
Priority to US730961A priority patent/US3042307A/en
Priority to CH5890958A priority patent/CH369908A/de
Priority to FR1206012D priority patent/FR1206012A/fr
Publication of GB889381A publication Critical patent/GB889381A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
    • G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
    • G05B19/41—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by interpolation, e.g. the computation of intermediate points between programmed end points to define the path to be followed and the rate of travel along that path
    • G05B19/4105—Analog interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Pure & Applied Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB13791/57A 1957-04-30 1957-04-30 Improvements relating to circuits for generating electrical signals representing trigonometrical functions Expired GB889381A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL227221D NL227221A (OSRAM) 1957-04-30
GB13791/57A GB889381A (en) 1957-04-30 1957-04-30 Improvements relating to circuits for generating electrical signals representing trigonometrical functions
US730961A US3042307A (en) 1957-04-30 1958-04-25 Trigonometric function generators
CH5890958A CH369908A (de) 1957-04-30 1958-04-29 Schaltung zur Ableitung von Signalen, deren Verhältnis dem Tangens eines Winkels proportional ist
FR1206012D FR1206012A (fr) 1957-04-30 1958-04-30 Perfectionnements aux circuits générateurs de signaux représentant des fonctions trigonométriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13791/57A GB889381A (en) 1957-04-30 1957-04-30 Improvements relating to circuits for generating electrical signals representing trigonometrical functions

Publications (1)

Publication Number Publication Date
GB889381A true GB889381A (en) 1962-02-14

Family

ID=10029437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13791/57A Expired GB889381A (en) 1957-04-30 1957-04-30 Improvements relating to circuits for generating electrical signals representing trigonometrical functions

Country Status (5)

Country Link
US (1) US3042307A (OSRAM)
CH (1) CH369908A (OSRAM)
FR (1) FR1206012A (OSRAM)
GB (1) GB889381A (OSRAM)
NL (1) NL227221A (OSRAM)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL267022A (OSRAM) * 1960-08-30 1900-01-01
US3221160A (en) * 1962-04-27 1965-11-30 Houston Instr Corp Logarithmic converter
GB1093022A (en) * 1964-02-07 1967-11-29 Emi Ltd Improvements in or relating to trigonometric function generators
US3493735A (en) * 1964-03-20 1970-02-03 North Atlantic Industries Computer circuits for processing trigonometric data
US3543011A (en) * 1968-02-12 1970-11-24 Inductosyn Corp Sine-cosine computer networks
US3601593A (en) * 1968-09-04 1971-08-24 United Aircraft Corp Inverse tangent generator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839711A (en) * 1955-10-17 1958-06-17 Industosyn Corp Automatic shaft control
US2967017A (en) * 1956-07-03 1961-01-03 Inductosyn Corp Digital to analog converter of angular values

Also Published As

Publication number Publication date
US3042307A (en) 1962-07-03
CH369908A (de) 1963-06-15
NL227221A (OSRAM)
FR1206012A (fr) 1960-02-05

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