US3014662A - Counters with serially connected delay units - Google Patents

Counters with serially connected delay units Download PDF

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Publication number
US3014662A
US3014662A US444251A US44425154A US3014662A US 3014662 A US3014662 A US 3014662A US 444251 A US444251 A US 444251A US 44425154 A US44425154 A US 44425154A US 3014662 A US3014662 A US 3014662A
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US
United States
Prior art keywords
borders
counters
delay units
serially connected
connected delay
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 - Lifetime
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US444251A
Inventor
Charles R Borders
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International Business Machines Corp
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International Business Machines Corp
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Filing date
Publication date
Priority to NL199007D priority Critical patent/NL199007A/xx
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US444251A priority patent/US3014662A/en
Priority to FR1152540D priority patent/FR1152540A/en
Priority to GB20519/55A priority patent/GB804808A/en
Application granted granted Critical
Publication of US3014662A publication Critical patent/US3014662A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G06F7/38—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
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/492—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination
    • G06F7/493—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination the representation being the natural binary coded representation, i.e. 8421-code
    • G06F7/494—Adding; Subtracting
    • G06F7/495—Adding; Subtracting in digit-serial fashion, i.e. having a single digit-handling circuit treating all denominations after each other
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/23—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using electrostatic storage on a common layer, e.g. Forrester-Haeff tubes or William tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers

Definitions

  • FIG 70 INVENTOR CHARLES R.BORDERS TTORNE Y Dec. 26, 1961 c. R. BORDERS 3,014,652
  • FIG. 1 A first figure.

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Image Generation (AREA)
  • Pulse Circuits (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Description

Dec. 26, 1961 c. R. BORDERS COUNTERS WITH SERIALLY CONNECTED DELAY UNITS 38 Sheets-Sheet 2 Filed July 19, 1954 INVENTOR ATTORNEY I 2 No e008 5% 95 33 009B 3 8Q 002 .003 Q CHARLES R. BORDERS mmwzokmmhm mm 5n Dec. 26, 1961 c. R. BORDERS COUNTERS WITH SERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 3 mum/vim wmJDm mmnEIm ww sm mmm mwnEIm ww 5n.
wtm Im Q P00 0 allllllAYl QZ mmhdjm INVENTOR CHARLES R. BORDERS WQ hw -.9 3;
ATTORNEY Dec. 26, 1961 c. R. BORDERS COUNTERS WITH SERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 5 INVENTOR.
CHARLES R. BORDERS mdE Dec. 26, 1961 c. R. BORDERS COUNTERS WITH S-ERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 7 mwdE Dec. 26, 1961 c. R. BORDERS COUNTERS WITH SERIAL-LY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 8 ins O VOLTS OUTPUT OF 1 MC OSC. 180
PHASE SHIFTED lN- PUT T0 SYNC TIMING BLOCKING 080.483
o VOLTSJ ovoumk k k CLAMP TIMING PULSE O VOLTS kc A k I SYNC TIMING PULSE- o VOLTS) k OUTPUT OF BLOCK- ING OSC. 484
OUTPUT OF BLOCK ING OSC. 485 I /OVOLTSPiL l b CLAMP $lGNAL\ o VOLTS\\ BL k k L SYNC END PULSE\ SYNC SIGNAL 7' "1]; LZLQILQL o VOLTS' 3 a a CLAMP PULSE o VOLTS" V V V o VOLT S H A "U$ -LL|$ SYNC PULSEN 3 3 lNVENTOR CHARLES R. BORDERS TTORNEY Dec. 26, 1961 c. R. BORDERS COUNTERS WITH SERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 10 R 000000000000000000000000000000000000 000 El DD R 11 0 00000 000 0000 000 00 00 0000 000 0 0 0 1 1 1 1 11 11 1 1 1 1 m w 0000 000 0000 000 00 00 0000 000 0 0 0 UD 1 1 1 1 11 11 1 1 1 1 000 000 0000 000 00 00 000 000 0 0 0 8D 4 1 1 I I 1 1 4 1 ll 1. ll M 0 000 00 00 000 0 00 0000 000 0 0 0 0 1D 1 1 1 11 11 1 1 1 1 1 m 1 0 000 0000 000 00 0 0000 000 0 0 0 0 S 5 Gal 1. I I 1 A l l A 1 1 l 41 4 mu 000000000 000000000000000 0000000000000 8 mm 1 1 1 T W 0000000000 000000000000000 000000000000 0Hv 1 1.. P 00000 000 0000 000 00 0 000 00 0 0. W 1 1 1 1 11 11 1 1 1 1 RMO 0000000 0000000 0000000 0000000 000000 m C 1 1 1 1 1 1 2 3 N 4 0 T T T T H U U U U A 0 0 0 0 R D D D D E A A A A P E E E E 0 R R R R E00000000 0000000000000000000000000000000 234567 12345670123456701234567012 456] HO00 0 1 LLLLLL ZZZZZzz2i33l3333a 444a 444 LVVENTOR.
CHARLES R. BORDERS FIG.7C
Dec. 26, 1961 C.R.BORDERS 58 Sheets-Sheet 11 OPERATION 17(mPuT) 14 &00
READOUT 5 0 0 READOUT 6 READOUT? OOOOOOOOOOOOOCO OOOOOOOOOOOOOOO OOOOOOO READOUT 8 READOUT 9 o o o o o o o o 0 O o o o o o o o o o O O O o o o 0 0 O 0 o o O o O o CARRYANDCLEAR OOOOOOO OOOOOOO FIG.7D
FIG. 7E
OOOOOO FIG.
FIG 70 INVENTOR CHARLES R.BORDERS TTORNE Y Dec. 26, 1961 c. R. BORDERS 3,014,652
COUNTERS WITH SERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 12 umii uuz o mwhzaou mmzmuum mwhzaou 205 503mm 7 zoEZ 5 Dec. 26, 1961 c. R. BORDERS 3,014,662
COUNTERS WITH SERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 13 05 v T l l l I I I l llllllrlllxllllllllllllil s 1 1 I l I 1 l l 1 ||||1| 2% 3 2 A n q u 55: w 6 v 26x6 F5616 :REG
mwoo 525 2 6a 53mm 2 66 u 000% ONOO\ OQOQ lu -I |||l I l ll 'l l l l-l l l l II III ll l -l 621 2x1 Noo vmdw 5.223 6 5 6 16 .m tzoEo h3g6 553 $2 25 2.60 N 2 60 time W 1|||| l I I 1 I 1 1 I 1 1 1 1 I I 1 I l I 1 I 1 l I I l l i 11 mmomo wtza .6 3
mwdl
INVENTOR CHARLES R. BORDERS flm arfi TTORNEY I Dec. 26, 1961 c. R. BORDERS COUNTERS WITH SERIALLY CONNECTED DELAY UNITS 58 Sheets-Sheet 14 Filed July 19, 1954 8031+ ooovo woowo 02.6
F5020 F5050 2 5a 2 5a w @230 INVENTOR CHARLES R. BORDERS BYB AZQOR N EY a Dec. 26, 1961 c. R. BORDERS COUNTERS WITH SERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 16 W 0 O O O O O O 0 O 0 0 O O 0 0 M E D O O 0 0 0 O 0 0 O 0 O O O 0 R 4 O D 1 1 1 S O O O O O O O 0 0 O O O 0 N8 E D 1 1 1 T O O 0 O O 0 O O O O 0 0 mm 1 1 1 1 8 O 0 O O 0 O O 0 O O O O O 8 2 D 1 l 1 1 M m 0 O O O O 0 0 O O O O S51 1 A In mull F w 0 O O 0 0 O O O 0 O O O O O O 6 S 1 M 3 O O 0 O 0 0 O 0 O 0 O O 0 0 0 m1 P O O O 0 O O O 0 0 O O 0 T4 w 1 1 1 1 U R W O 0 O 0 0 O 0 O O O O O O O mm V 1 N O w 1 Tm M W U E R O O T E D D N P H m 0 R R E 0 O O O O O O O O O O 0 O 0 0 M 2 5 7 2 5 5 O 9 9 9 9 9 9 m w 0 0 w 0 0 O 1 1 IN UNITS) O O O O 0 O O O O 0 0 1 0 0 0 O 0 0 1 fl l l l 0 0 O O 0 O .1 1 1 1 1 1 O 0 0 O 0 O 0 O O O O O O 1 1 O 0 O O 0 0 1 1 1 1 1 1 0 O 0 O O 0 O O 0 O O 0 0 0 O O 0 O O 0 O O O 0 O 0 O O O O O O O 0 0 O O O 0 n 9 8 a 9 S B S D N T N TEN TN] A U T U U E N R O U A O Y E Dm DNN RI- A 1 A11- RC E O E O O O 0 O O O 0 0 O O 234 smoA2a & & 8 8 8 a 8 8 9 9 9 9 999999999999 FIG. 9A
INVENTOR.
CHARLES R BORDERS 11 TTORNE 1 Dec. 26, 1961 Filed July 19, 1954 C. R. BORDERS COUNTERS WITH SERIALLY CONNECTED DELAY UNITS 38 Sheets-Sheet 17 CIRCUIT POINTS (FIGS.8C,8D) HUNDREDS ORDER TIME OPERATION 171mm) 14 13 19-10015-100 0100 0900 0400 0200 01000 99.30 1 0 0 0 1 0 o 0 0 0 99.40 0 0 0 0 0 1 0 0 0 0 99.50 0 o 0 0 0 o 1 0 0 0 99.90 0 0 0 o 0 0 0 0 0 99.70 0 1 0 0 1 0 0 0 1 0 100.00 READOUT 100 0 0 0 0 o 1 o 0 0 0 1100 1111 HUNDREDS ORDER) 999.00 REABOUT 999 '0 0 0 0 0 1 1 0 '0 0 999.10 88 mfi gfig 0 0 0 o 0 o 1 0 0 999.20 8 IN UNITS 0 1 0 0 1 0 0 1 0 999.30 0 1 0 0 1 1 0 0 1 0 999.70 0 o 0 1 1 0 0 1 0 999.00 g m L 0 0 0 0 0 1 1 0 0 0 999.10 38 IN L; s 0 v 0 0 0 0 0 1 o 0 999.20 9 |N UN|T$ 0 1 0 0 1 0 0 1 0 999.30 1 1 0 0 1 0 0 1 0 999.40 CARRY AND 0 0 1 0 1 0 1 0 0 1 CLEAR FIG. 9B
INVENTOR.
CHARLES R. BORDERS ATTORNEY Dec. 26, 1961 C. R. BORDERS CQUNTERS WITH SERIALLY CONNECTED DELAY UNITS Filed July 19, 1954 38 Sheets-Sheet 18 CIRCUIT POINTS (FIGS.8C,8D) THOUSANDS ORDER TIME OPERATION 1711111 111) 14 13 19-100015-100009000 0400002000 01000 010,000
999.40 1 o 0 0 1 0 0 o o 0 1000.00 READQUT 1000 O O O 1 O O 0 1 O 1000 m THOUSANDS) 9999 READOUT 99 99 0 0 0 1 1 0 0 1 0 9999.10 000 IN Eg 0 o 0 o 0 1 1 0 0 0 0 0 0 0 0 0 1 1 0 o 900 m HUN DREDS. 0 O 0 1 0 O 1 1 0 9998.40 90 m TENS O O O 1 1 O O 1 0 999850 a m H-s O O 0. O O 1 1 O O 0 999960 0 0 0 0 0 1 1 0 0 9999.00 READOUT 9999 0 0 0 1 1 o 0 1 0 9999.10 000 IN mousl o 0 0 0 0 1 1 0 0 0 9999.20 900 m 0 0 0 0 0 1 1 0 0 9999.30 DREDS 0 0 0 1 0 1 1 0 9999.40 90 IN TENS. 1 0 1 0 1 0 0 1 o 99995o 9 E- 0 0 1 0 1 1 0 o 1 9999.90 CARRYAND 0 0 0 0 0 0 0 o 0 FIG.
FIG.
FIGJO 9A F l G. INVENTOR.
CHARLES R. BORDERS FIG. g 90 BY JTTORNEY Dec. 26, 1961 c. R'. BORDERS Filed July 19, 1954 58 Sheets-Sheet 19 aso xons 66 3 OUTPUT p F IG. 1 1 wil 31? 268 rPULL UP PULSE as? 2.7K
i Y V V 262- '4 275 -s2 VOLTS TIME i ND .06 -O8/N.1 N2 N3 M4 N5 N.5 N.7 N.80f0 NJ SYNQPULSE- j H H H H H INPUT- PULSE PULL UP q PULSE OUTPUT INVENTOR. F'G 1| A CHARLES R. BORDERS ATTORNEY
US444251A 1954-07-19 1954-07-19 Counters with serially connected delay units Expired - Lifetime US3014662A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL199007D NL199007A (en) 1954-07-19
US444251A US3014662A (en) 1954-07-19 1954-07-19 Counters with serially connected delay units
FR1152540D FR1152540A (en) 1954-07-19 1955-07-12 Regenerative meter
GB20519/55A GB804808A (en) 1954-07-19 1955-07-15 Improvements in or relating to electronic counters for use in digital data storage systems

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148074A (en) * 1976-12-22 1979-04-03 Stakhov Alexei P Cathode-ray tube display

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US2403561A (en) * 1942-11-28 1946-07-09 Rca Corp Multiplex control system
US2404047A (en) * 1943-01-21 1946-07-16 Rca Corp Electronic computing device
US2429228A (en) * 1945-06-11 1947-10-21 Rca Corp Electronic computer
US2502360A (en) * 1947-03-14 1950-03-28 Bell Telephone Labor Inc Electronic computer
US2516888A (en) * 1945-04-17 1950-08-01 Int Standard Electric Corp Sequential gating system utilizing incrementally delayed and undelayed pulse trains of different frequencies
US2521788A (en) * 1945-03-01 1950-09-12 Rca Corp Electronic counter
US2531076A (en) * 1949-10-22 1950-11-21 Rca Corp Bistable semiconductor multivibrator circuit
US2536035A (en) * 1939-12-12 1951-01-02 Claud E Cleeton Means for producing a variable number of pulses
US2542644A (en) * 1948-09-01 1951-02-20 Bell Telephone Labor Inc Multistage ring circuit
US2558447A (en) * 1948-12-30 1951-06-26 Rca Corp High-speed frequency divider
US2563106A (en) * 1948-04-28 1951-08-07 Rca Corp Coincidence indicator for electronic counters
US2573316A (en) * 1941-05-23 1951-10-30 Ibm Commutator
US2585630A (en) * 1949-05-03 1952-02-12 Remington Rand Inc Digit shifting circuit
US2591008A (en) * 1950-01-07 1952-04-01 Ncr Co Electronic accumulator
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US2617931A (en) * 1949-12-24 1952-11-11 Stromberg Carlson Co Pulse commutating ring counter circuit
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US2635229A (en) * 1949-11-23 1953-04-14 Electronique & Automatisme Sa Operating circuits for coded electrical signals
FR1026931A (en) * 1950-10-02 1953-05-05 Electronique & Automatisme Sa Improvements to totalization circuits
US2644887A (en) * 1950-12-18 1953-07-07 Res Corp Comp Synchronizing generator
FR1035453A (en) * 1951-04-16 1953-08-25 Bull Sa Machines Multiplication and division devices
US2652501A (en) * 1951-07-27 1953-09-15 Gen Electric Binary magnetic system
FR1041803A (en) * 1950-05-17 1953-10-27 Nat Res Dev Improvements to electronic meter assemblies
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US2674733A (en) * 1952-12-02 1954-04-06 Hughes Tool Co Electronic sorting system
US2687473A (en) * 1950-04-13 1954-08-24 Remington Rand Inc Signal cycling device
US2690303A (en) * 1951-04-03 1954-09-28 Marchant Calculators Inc Counter
US2697549A (en) * 1950-03-18 1954-12-21 Gen Electric Electronic multiradix counter of matrix type
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
US2703678A (en) * 1950-12-26 1955-03-08 Friden Calculating Machine Co Electronic counter
US2724553A (en) * 1950-04-05 1955-11-22 Automatic Elect Lab Time interval meter
US2731201A (en) * 1950-12-21 1956-01-17 Ibm Electronic counter
US2734684A (en) * 1952-07-21 1956-02-14 diodes x
US2745006A (en) * 1952-08-18 1956-05-08 Jeffrey C Chu Binary counter
US2749440A (en) * 1950-05-17 1956-06-05 British Tabulating Mach Co Ltd Thermionic valve circuits
US2761621A (en) * 1949-11-25 1956-09-04 Int Standard Electric Corp Electric calculating circuits
US2774868A (en) * 1951-12-21 1956-12-18 Ibm Binary-decade counter
US2775402A (en) * 1951-05-25 1956-12-25 Weiss Eric Coded decimal summer
US2781447A (en) * 1951-06-27 1957-02-12 Gen Electric Binary digital computing and counting apparatus
US2781446A (en) * 1952-03-28 1957-02-12 Sperry Rand Corp Pulse cycling circuit
US2785854A (en) * 1951-03-30 1957-03-19 Bull Sa Machines Electronic calculating device
US2787416A (en) * 1951-10-23 1957-04-02 Hughes Aircraft Co Electrical calculating machines
US2789760A (en) * 1950-02-01 1957-04-23 Emi Ltd Electrical computing apparatus
US2790599A (en) * 1951-02-27 1957-04-30 Electronique & Automatisme Sa Electronic digital adder and multiplier
US2801334A (en) * 1953-04-06 1957-07-30 Ibm Dynamic storage circuit

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Publication number Priority date Publication date Assignee Title
US2536035A (en) * 1939-12-12 1951-01-02 Claud E Cleeton Means for producing a variable number of pulses
US2573316A (en) * 1941-05-23 1951-10-30 Ibm Commutator
US2403561A (en) * 1942-11-28 1946-07-09 Rca Corp Multiplex control system
US2404047A (en) * 1943-01-21 1946-07-16 Rca Corp Electronic computing device
US2521788A (en) * 1945-03-01 1950-09-12 Rca Corp Electronic counter
US2516888A (en) * 1945-04-17 1950-08-01 Int Standard Electric Corp Sequential gating system utilizing incrementally delayed and undelayed pulse trains of different frequencies
US2429228A (en) * 1945-06-11 1947-10-21 Rca Corp Electronic computer
US2502360A (en) * 1947-03-14 1950-03-28 Bell Telephone Labor Inc Electronic computer
US2563106A (en) * 1948-04-28 1951-08-07 Rca Corp Coincidence indicator for electronic counters
US2609143A (en) * 1948-06-24 1952-09-02 George R Stibitz Electronic computer for addition and subtraction
US2542644A (en) * 1948-09-01 1951-02-20 Bell Telephone Labor Inc Multistage ring circuit
US2558447A (en) * 1948-12-30 1951-06-26 Rca Corp High-speed frequency divider
US2701095A (en) * 1949-02-12 1955-02-01 George R Stibitz Electronic computer for division
US2623115A (en) * 1949-03-24 1952-12-23 Ibm Electronic multiplier
US2703202A (en) * 1949-04-14 1955-03-01 Ibm Electronic binary algebraic accumulator
US2634052A (en) * 1949-04-27 1953-04-07 Raytheon Mfg Co Diagnostic information monitoring system
US2585630A (en) * 1949-05-03 1952-02-12 Remington Rand Inc Digit shifting circuit
US2615127A (en) * 1949-09-17 1952-10-21 Gen Electric Electronic comparator device
US2531076A (en) * 1949-10-22 1950-11-21 Rca Corp Bistable semiconductor multivibrator circuit
US2635229A (en) * 1949-11-23 1953-04-14 Electronique & Automatisme Sa Operating circuits for coded electrical signals
US2761621A (en) * 1949-11-25 1956-09-04 Int Standard Electric Corp Electric calculating circuits
US2617931A (en) * 1949-12-24 1952-11-11 Stromberg Carlson Co Pulse commutating ring counter circuit
US2591008A (en) * 1950-01-07 1952-04-01 Ncr Co Electronic accumulator
US2789760A (en) * 1950-02-01 1957-04-23 Emi Ltd Electrical computing apparatus
US2697549A (en) * 1950-03-18 1954-12-21 Gen Electric Electronic multiradix counter of matrix type
US2724553A (en) * 1950-04-05 1955-11-22 Automatic Elect Lab Time interval meter
US2687473A (en) * 1950-04-13 1954-08-24 Remington Rand Inc Signal cycling device
US2749440A (en) * 1950-05-17 1956-06-05 British Tabulating Mach Co Ltd Thermionic valve circuits
FR1041803A (en) * 1950-05-17 1953-10-27 Nat Res Dev Improvements to electronic meter assemblies
US2625326A (en) * 1950-05-25 1953-01-13 Ncr Co Electronic accumulator
FR1026931A (en) * 1950-10-02 1953-05-05 Electronique & Automatisme Sa Improvements to totalization circuits
US2644887A (en) * 1950-12-18 1953-07-07 Res Corp Comp Synchronizing generator
US2731201A (en) * 1950-12-21 1956-01-17 Ibm Electronic counter
US2703678A (en) * 1950-12-26 1955-03-08 Friden Calculating Machine Co Electronic counter
US2790599A (en) * 1951-02-27 1957-04-30 Electronique & Automatisme Sa Electronic digital adder and multiplier
GB678427A (en) * 1951-03-09 1952-09-03 British Tabulating Mach Co Ltd Improvements in electronic adding devices
US2785854A (en) * 1951-03-30 1957-03-19 Bull Sa Machines Electronic calculating device
US2690303A (en) * 1951-04-03 1954-09-28 Marchant Calculators Inc Counter
FR1035453A (en) * 1951-04-16 1953-08-25 Bull Sa Machines Multiplication and division devices
US2775402A (en) * 1951-05-25 1956-12-25 Weiss Eric Coded decimal summer
US2781447A (en) * 1951-06-27 1957-02-12 Gen Electric Binary digital computing and counting apparatus
US2652501A (en) * 1951-07-27 1953-09-15 Gen Electric Binary magnetic system
FR1043321A (en) * 1951-09-26 1953-11-09 Bull Sa Machines artificially limited capacity totalizing elements and applications
US2787416A (en) * 1951-10-23 1957-04-02 Hughes Aircraft Co Electrical calculating machines
US2774868A (en) * 1951-12-21 1956-12-18 Ibm Binary-decade counter
US2781446A (en) * 1952-03-28 1957-02-12 Sperry Rand Corp Pulse cycling circuit
US2734684A (en) * 1952-07-21 1956-02-14 diodes x
US2745006A (en) * 1952-08-18 1956-05-08 Jeffrey C Chu Binary counter
US2674733A (en) * 1952-12-02 1954-04-06 Hughes Tool Co Electronic sorting system
US2801334A (en) * 1953-04-06 1957-07-30 Ibm Dynamic storage circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148074A (en) * 1976-12-22 1979-04-03 Stakhov Alexei P Cathode-ray tube display

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FR1152540A (en) 1958-02-19
GB804808A (en) 1958-11-26
NL199007A (en)

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