OA00798A - Perfectionnement aux opérateurs pour machine à calculer numérique. - Google Patents

Perfectionnement aux opérateurs pour machine à calculer numérique.

Info

Publication number
OA00798A
OA00798A OA50889A OA50889A OA00798A OA 00798 A OA00798 A OA 00798A OA 50889 A OA50889 A OA 50889A OA 50889 A OA50889 A OA 50889A OA 00798 A OA00798 A OA 00798A
Authority
OA
OAPI
Prior art keywords
operators
calculating machines
advanced training
digital calculating
digital
Prior art date
Application number
OA50889A
Other languages
English (en)
Original Assignee
Philips Nv
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
Application filed by Philips Nv filed Critical Philips Nv
Publication of OA00798A publication Critical patent/OA00798A/fr

Links

Classifications

    • 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
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/50—Adding; Subtracting
    • G06F7/505—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination
    • G06F7/506—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages
    • G06F7/508—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages using carry look-ahead circuits
    • 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
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/50—Adding; Subtracting
    • G06F7/501—Half or full adders, i.e. basic adder cells for one denomination
    • G06F7/5016—Half or full adders, i.e. basic adder cells for one denomination forming at least one of the output signals directly from the minterms of the input signals, i.e. with a minimum number of gate levels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
OA50889A 1957-01-22 1964-12-16 Perfectionnement aux opérateurs pour machine à calculer numérique. OA00798A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL213922A NL103751C (fr) 1957-01-22 1957-01-22
NL224679A NL113236C (fr) 1957-01-22 1958-02-05

Publications (1)

Publication Number Publication Date
OA00798A true OA00798A (fr) 1967-11-15

Family

ID=26641616

Family Applications (1)

Application Number Title Priority Date Filing Date
OA50889A OA00798A (fr) 1957-01-22 1964-12-16 Perfectionnement aux opérateurs pour machine à calculer numérique.

Country Status (7)

Country Link
US (1) US3056551A (fr)
CH (2) CH365235A (fr)
DE (2) DE1096649B (fr)
FR (2) FR1193001A (fr)
GB (2) GB876989A (fr)
NL (4) NL103751C (fr)
OA (1) OA00798A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184125B (de) * 1961-11-17 1964-12-23 Telefunken Patent Zweistufiges Rechenwerk
DE2007353C3 (de) * 1970-02-18 1973-11-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vierteiliges Addierwerk
US4737926A (en) * 1986-01-21 1988-04-12 Intel Corporation Optimally partitioned regenerative carry lookahead adder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719670A (en) * 1949-10-18 1955-10-04 Jacobs Electrical and electronic digital computers
US2803401A (en) * 1950-10-10 1957-08-20 Hughes Aircraft Co Arithmetic units for digital computers
US2819839A (en) * 1951-02-23 1958-01-14 Donald H Jacobs High speed register using gating circuits to bypass delay elements
GB750817A (en) * 1953-10-19 1956-06-20 Powers Samas Account Mach Ltd Improvements in or relating to electronic adding circuits
US2954168A (en) * 1955-11-21 1960-09-27 Philco Corp Parallel binary adder-subtracter circuits
US2879001A (en) * 1956-09-10 1959-03-24 Weinberger Arnold High-speed binary adder having simultaneous carry generation

Also Published As

Publication number Publication date
DE1123144B (de) 1962-02-01
US3056551A (en) 1962-10-02
GB879159A (en) 1961-10-04
CH374841A (de) 1964-01-31
NL113236C (fr) 1965-12-15
DE1096649B (de) 1961-01-05
NL213922A (fr)
GB876989A (en) 1961-09-06
NL103751C (fr) 1962-05-15
FR74905E (fr) 1961-03-03
CH365235A (de) 1962-10-31
NL224679A (fr)
FR1193001A (fr) 1959-10-29

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