US2924381A - Digital differential analyzer - Google Patents
Digital differential analyzer Download PDFInfo
- Publication number
- US2924381A US2924381A US283622A US28362252A US2924381A US 2924381 A US2924381 A US 2924381A US 283622 A US283622 A US 283622A US 28362252 A US28362252 A US 28362252A US 2924381 A US2924381 A US 2924381A
- Authority
- US
- United States
- Prior art keywords
- digital differential
- differential analyzer
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- sheet
- sheets
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- 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 - Lifetime
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-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
- G06F7/64—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations
- G06F7/66—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations wherein pulses represent unitary increments only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Cephalosporin Compounds (AREA)
Description
Feb. 9, 1960 D. E. ECKDAHI.v ETAL 2,924,381
` DIGITAL DIFFERENTIAL ANALYZER Filed April 22, 1952 48fsheets-sheet 1 Feb. 9, 1960 D. E. ECKDAHL ETAL 2,924,381
l DIGITAL DIFFERENTIAL ANALYZER l Filed April 22, 1952 4a sheets-sheet 2 Feb. 9, 1960 I Filed April 22, 1952 D. E. ECKDAHL ET AL DIGITAL DIFFERENTIAL ANALYZER 48 Sheets-Sheet 3 Feb. 9, 1960' n. E. EcKDAHL Erm. 2,924,381
DIGITAL DIFFERENTIAL ANALYZER .48 Sheets-Sheet 4 Filed April 22, 1952 Feb. 9, 1960 48 Sheets-Sheet 5 Filed April 22. 1952 QINM $4-1. fw. uw
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DIGITAL DIFFERENTIAL ANALYZFR Filed April 22', 1952 4s sheets-sheet s vrfA/r #fran/mere Feb. 9, 1960 D. E. ECKDAHL ETAL DIGITAL DIFFERENTIAL ANALYZER Filed April 22,' 1952 48 Sheets-Sheet 7 Feb. 9, 1960 D. E. EcKDAHL ET AL 2,924,381
DIGITAL DIFFERENTIAL ANALYZER Filed April 22, 1952 48 Sheets-Sheet 8 -Feb- 9, 1960 E. EcKDAHL vE'r AL 2,924,381
DIGITAL DIFFERENTIAL ANALYZER 48 Sheets-Sheet 9 Filed April 22, 1952 Feb.9, 1960 Filed April 22, 1952 D. E. ECK'DAHL ETAL DIGITAL DIFFERENTIAL ANALYZER 48 Sheets-Sheet 10 Feb. 9, 1960 D. E. ECKDAHL ET AL 2,924,381
DIGITAL DIFFERENTIAL ANALYZER Filed April 22, 1952 48 Sheets-Sheet 11 Feb. 9, 1960 Filed April 22, 1952 DqE. l-:cKDAHL ET AL 2,924,381
DIGxTAL DIFFERENTIAL ANALYZER 48 Sheets-Sheet 12 l @ya `feb. 9, 1960 Filed April 22, 1952 D. E. EcKDAl-n. ET AL 2,924,381 DIGITAL DIFFERENTIAL ANALYZER 48 Sheets-Sheet 13 v Feb. 9, 1960 D. E. EcKDAHL ETAL 2,924,381
DIGITAL DIFFERENTIAL ANALYZER Filed April 22, 1952 48 Sheets-Sheet 14 sb. m\ Q AI Feb. 9, 1960 v D. E. ECKDAHL ET'AL 2,924,381
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DIGITAL DIFFERENTIAL ANALYZER Filed April 22, 1952 Feb. s, 19Go Filed Aprilv 22 1952 D. E. ECKDAHL ETAL DIGITAL DIFFERENTIAL ANALYZER 48 Sheets-Sheet 18l Feb. 9, 1960 D. E. ECKDAHL Erm. 2,924,381
DIGITAL DIFFERENTIAL ANALYZER Filed April' '22. 1952 42?'S1fxeecs-Shee1kl 19 i la! l T275 L 8f
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US283622A US2924381A (en) | 1952-04-22 | 1952-04-22 | Digital differential analyzer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US283622A US2924381A (en) | 1952-04-22 | 1952-04-22 | Digital differential analyzer |
Publications (1)
Publication Number | Publication Date |
---|---|
US2924381A true US2924381A (en) | 1960-02-09 |
Family
ID=23086877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US283622A Expired - Lifetime US2924381A (en) | 1952-04-22 | 1952-04-22 | Digital differential analyzer |
Country Status (1)
Country | Link |
---|---|
US (1) | US2924381A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3027081A (en) * | 1958-12-31 | 1962-03-27 | Ibm | Overlap mode control |
US3137787A (en) * | 1959-05-14 | 1964-06-16 | Emi Ltd | Digital differential analyzers |
US3147371A (en) * | 1957-03-25 | 1964-09-01 | Digital Control Systems Inc | Simplified methods and apparatus for digital computation |
US3155816A (en) * | 1957-11-08 | 1964-11-03 | Gen Precision Inc | Digital computer |
US3313925A (en) * | 1956-05-11 | 1967-04-11 | Gen Precision Inc | Digital differential analyzer |
US20110037822A1 (en) * | 2009-08-11 | 2011-02-17 | Conexant Systems, Inc. | Systems and Methods for Alignment of Laser Printers |
Citations (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2435841A (en) * | 1944-01-05 | 1948-02-10 | Rca Corp | Computing device |
US2476066A (en) * | 1948-05-06 | 1949-07-12 | Sylvania Electric Prod | Crystal matrix |
US2521350A (en) * | 1947-11-24 | 1950-09-05 | Ibm | Electronic counter |
US2539623A (en) * | 1947-02-12 | 1951-01-30 | Bell Telephone Labor Inc | Communication system |
US2540654A (en) * | 1948-03-25 | 1951-02-06 | Engineering Res Associates Inc | Data storage system |
FR975941A (en) * | 1948-09-22 | 1951-03-12 | Electronique & Automatisme Sa | Pulse counters |
US2549071A (en) * | 1949-09-10 | 1951-04-17 | Lawton Products Company Inc | Space reservation system |
US2557729A (en) * | 1948-07-30 | 1951-06-19 | Eckert Mauchly Comp Corp | Impulse responsive network |
US2564403A (en) * | 1949-01-27 | 1951-08-14 | Teleregister Corp | Electrical and cyclical data posting system |
US2568932A (en) * | 1947-09-27 | 1951-09-25 | Rca Corp | Electronic cumulative adder |
US2575342A (en) * | 1949-06-02 | 1951-11-20 | Darrin H Gridley | Position sensing device |
US2584811A (en) * | 1944-12-27 | 1952-02-05 | Ibm | Electronic counting circuit |
US2585630A (en) * | 1949-05-03 | 1952-02-12 | Remington Rand Inc | Digit shifting circuit |
US2587532A (en) * | 1948-05-05 | 1952-02-26 | Teleregister Corp | System for magnetic storage of data |
US2594731A (en) * | 1949-07-14 | 1952-04-29 | Teleregister Corp | Apparatus for displaying magnetically stored data |
US2595378A (en) * | 1949-05-23 | 1952-05-06 | Int Standard Electric Corp | Selective system |
US2603123A (en) * | 1950-03-04 | 1952-07-15 | American Cyanamid Co | Tristimulus integrator |
US2609439A (en) * | 1949-09-20 | 1952-09-02 | Teleregister Corp | Indicator setting mechanism operable by means of character comparisons |
US2609143A (en) * | 1948-06-24 | 1952-09-02 | George R Stibitz | Electronic computer for addition and subtraction |
US2611813A (en) * | 1948-05-26 | 1952-09-23 | Technitrol Engineering Company | Magnetic data storage system |
US2614169A (en) * | 1950-07-24 | 1952-10-14 | Engineering Res Associates Inc | Storage and relay system |
US2617704A (en) * | 1947-07-15 | 1952-11-11 | Bell Telephone Labor Inc | Recording system |
US2632845A (en) * | 1950-12-22 | 1953-03-24 | Rca Corp | Coincidence indicator |
US2636133A (en) * | 1950-12-01 | 1953-04-21 | Bell Telephone Labor Inc | Diode gate |
US2637812A (en) * | 1949-06-14 | 1953-05-05 | Northrop Aircraft Inc | Electronic pulse spacer |
US2644867A (en) * | 1951-04-18 | 1953-07-07 | Speed Dev Company Ltd | Fluid pressure operated switch |
US2652554A (en) * | 1949-03-01 | 1953-09-15 | Nat Res Dev | Magnetic storage system for electronic binary digital computers |
US2655598A (en) * | 1950-10-21 | 1953-10-13 | Eckert Mauchly Comp Corp | Signal processing apparatus |
US2675427A (en) * | 1951-12-21 | 1954-04-13 | Bell Telephone Labor Inc | Electrostatic scanning mechanism for scanning both tips and rings of calling lines and combining the results of these scanning operations |
US2680239A (en) * | 1952-02-26 | 1954-06-01 | Engineering Res Associates Inc | Data selection system |
US2700755A (en) * | 1951-11-09 | 1955-01-25 | Monroe Calculating Machine | Keyboard checking circuit |
US2700504A (en) * | 1949-10-31 | 1955-01-25 | Nat Res Dev | Electronic device for the multiplication of binary-digital numbers |
US2701095A (en) * | 1949-02-12 | 1955-02-01 | George R Stibitz | Electronic computer for division |
US2703202A (en) * | 1949-04-14 | 1955-03-01 | Ibm | Electronic binary algebraic accumulator |
US2719670A (en) * | 1949-10-18 | 1955-10-04 | Jacobs | Electrical and electronic digital computers |
US2737342A (en) * | 1948-08-04 | 1956-03-06 | Teleregister Corp | Rotary magnetic data storage system |
US2739299A (en) * | 1951-05-25 | 1956-03-20 | Monroe Calculating Machine | Magnetic storage systems for computers and the like |
US2749037A (en) * | 1950-04-21 | 1956-06-05 | George R Stibitz | Electronic computer for multiplication |
US2775402A (en) * | 1951-05-25 | 1956-12-25 | Weiss Eric | Coded decimal summer |
US2787416A (en) * | 1951-10-23 | 1957-04-02 | Hughes Aircraft Co | Electrical calculating machines |
US2796218A (en) * | 1949-06-22 | 1957-06-18 | Nat Res Dev | Electronic computing devices with subsidiary storage |
US2815168A (en) * | 1951-11-14 | 1957-12-03 | Hughes Aircraft Co | Automatic program control system for a digital computer |
US2841328A (en) * | 1950-03-06 | 1958-07-01 | Northrop Aircraft Inc | Digital differential analyzer |
US2850232A (en) * | 1951-12-26 | 1958-09-02 | Northrop Aircraft Inc | Machine for digital differential analysis |
-
1952
- 1952-04-22 US US283622A patent/US2924381A/en not_active Expired - Lifetime
Patent Citations (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2435841A (en) * | 1944-01-05 | 1948-02-10 | Rca Corp | Computing device |
US2584811A (en) * | 1944-12-27 | 1952-02-05 | Ibm | Electronic counting circuit |
US2539623A (en) * | 1947-02-12 | 1951-01-30 | Bell Telephone Labor Inc | Communication system |
US2617704A (en) * | 1947-07-15 | 1952-11-11 | Bell Telephone Labor Inc | Recording system |
US2568932A (en) * | 1947-09-27 | 1951-09-25 | Rca Corp | Electronic cumulative adder |
US2521350A (en) * | 1947-11-24 | 1950-09-05 | Ibm | Electronic counter |
US2540654A (en) * | 1948-03-25 | 1951-02-06 | Engineering Res Associates Inc | Data storage system |
US2587532A (en) * | 1948-05-05 | 1952-02-26 | Teleregister Corp | System for magnetic storage of data |
US2476066A (en) * | 1948-05-06 | 1949-07-12 | Sylvania Electric Prod | Crystal matrix |
US2611813A (en) * | 1948-05-26 | 1952-09-23 | Technitrol Engineering Company | Magnetic data storage system |
US2609143A (en) * | 1948-06-24 | 1952-09-02 | George R Stibitz | Electronic computer for addition and subtraction |
US2557729A (en) * | 1948-07-30 | 1951-06-19 | Eckert Mauchly Comp Corp | Impulse responsive network |
US2737342A (en) * | 1948-08-04 | 1956-03-06 | Teleregister Corp | Rotary magnetic data storage system |
FR975941A (en) * | 1948-09-22 | 1951-03-12 | Electronique & Automatisme Sa | Pulse counters |
US2564403A (en) * | 1949-01-27 | 1951-08-14 | Teleregister Corp | Electrical and cyclical data posting system |
US2701095A (en) * | 1949-02-12 | 1955-02-01 | George R Stibitz | Electronic computer for division |
US2652554A (en) * | 1949-03-01 | 1953-09-15 | Nat Res Dev | Magnetic storage system for electronic binary digital computers |
US2703202A (en) * | 1949-04-14 | 1955-03-01 | Ibm | Electronic binary algebraic accumulator |
US2585630A (en) * | 1949-05-03 | 1952-02-12 | Remington Rand Inc | Digit shifting circuit |
US2595378A (en) * | 1949-05-23 | 1952-05-06 | Int Standard Electric Corp | Selective system |
US2575342A (en) * | 1949-06-02 | 1951-11-20 | Darrin H Gridley | Position sensing device |
US2637812A (en) * | 1949-06-14 | 1953-05-05 | Northrop Aircraft Inc | Electronic pulse spacer |
US2796218A (en) * | 1949-06-22 | 1957-06-18 | Nat Res Dev | Electronic computing devices with subsidiary storage |
US2594731A (en) * | 1949-07-14 | 1952-04-29 | Teleregister Corp | Apparatus for displaying magnetically stored data |
US2549071A (en) * | 1949-09-10 | 1951-04-17 | Lawton Products Company Inc | Space reservation system |
US2609439A (en) * | 1949-09-20 | 1952-09-02 | Teleregister Corp | Indicator setting mechanism operable by means of character comparisons |
US2719670A (en) * | 1949-10-18 | 1955-10-04 | Jacobs | Electrical and electronic digital computers |
US2700504A (en) * | 1949-10-31 | 1955-01-25 | Nat Res Dev | Electronic device for the multiplication of binary-digital numbers |
US2603123A (en) * | 1950-03-04 | 1952-07-15 | American Cyanamid Co | Tristimulus integrator |
US2841328A (en) * | 1950-03-06 | 1958-07-01 | Northrop Aircraft Inc | Digital differential analyzer |
US2749037A (en) * | 1950-04-21 | 1956-06-05 | George R Stibitz | Electronic computer for multiplication |
US2614169A (en) * | 1950-07-24 | 1952-10-14 | Engineering Res Associates Inc | Storage and relay system |
US2655598A (en) * | 1950-10-21 | 1953-10-13 | Eckert Mauchly Comp Corp | Signal processing apparatus |
US2636133A (en) * | 1950-12-01 | 1953-04-21 | Bell Telephone Labor Inc | Diode gate |
US2632845A (en) * | 1950-12-22 | 1953-03-24 | Rca Corp | Coincidence indicator |
US2644867A (en) * | 1951-04-18 | 1953-07-07 | Speed Dev Company Ltd | Fluid pressure operated switch |
US2739299A (en) * | 1951-05-25 | 1956-03-20 | Monroe Calculating Machine | Magnetic storage systems for computers and the like |
US2775402A (en) * | 1951-05-25 | 1956-12-25 | Weiss Eric | Coded decimal summer |
US2787416A (en) * | 1951-10-23 | 1957-04-02 | Hughes Aircraft Co | Electrical calculating machines |
US2700755A (en) * | 1951-11-09 | 1955-01-25 | Monroe Calculating Machine | Keyboard checking circuit |
US2815168A (en) * | 1951-11-14 | 1957-12-03 | Hughes Aircraft Co | Automatic program control system for a digital computer |
US2675427A (en) * | 1951-12-21 | 1954-04-13 | Bell Telephone Labor Inc | Electrostatic scanning mechanism for scanning both tips and rings of calling lines and combining the results of these scanning operations |
US2850232A (en) * | 1951-12-26 | 1958-09-02 | Northrop Aircraft Inc | Machine for digital differential analysis |
US2680239A (en) * | 1952-02-26 | 1954-06-01 | Engineering Res Associates Inc | Data selection system |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3313925A (en) * | 1956-05-11 | 1967-04-11 | Gen Precision Inc | Digital differential analyzer |
US3147371A (en) * | 1957-03-25 | 1964-09-01 | Digital Control Systems Inc | Simplified methods and apparatus for digital computation |
US3155816A (en) * | 1957-11-08 | 1964-11-03 | Gen Precision Inc | Digital computer |
US3027081A (en) * | 1958-12-31 | 1962-03-27 | Ibm | Overlap mode control |
US3137787A (en) * | 1959-05-14 | 1964-06-16 | Emi Ltd | Digital differential analyzers |
US20110037822A1 (en) * | 2009-08-11 | 2011-02-17 | Conexant Systems, Inc. | Systems and Methods for Alignment of Laser Printers |
US20110149010A1 (en) * | 2009-08-11 | 2011-06-23 | Conexant Systems, Inc. | Systems and methods for alignment of laser printers |
US8289358B2 (en) | 2009-08-11 | 2012-10-16 | Conexant Systems, Inc. | Systems and methods for alignment of laser printers |
US8363082B2 (en) | 2009-08-11 | 2013-01-29 | Conexant Systems, Inc. | Systems and methods for alignment of laser printers |
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