GB812829A - Method of generating pulse groups and multiples thereof - Google Patents
Method of generating pulse groups and multiples thereofInfo
- Publication number
- GB812829A GB812829A GB3541755A GB3541755A GB812829A GB 812829 A GB812829 A GB 812829A GB 3541755 A GB3541755 A GB 3541755A GB 3541755 A GB3541755 A GB 3541755A GB 812829 A GB812829 A GB 812829A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- collector bar
- multiplier
- digit
- groups
- 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
- 230000000875 corresponding Effects 0.000 abstract 3
- 241001646071 Prioneris Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229910000529 magnetic ferrite Inorganic materials 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Landscapes
- X-Ray Techniques (AREA)
Abstract
812,829. Digital electric calculating-apparatus. KIENZLE APPARATE G.m.b.H. Dec. 9, 1955, No. 35417/55. Class 106 (1). A method of generating groups of pulses consists in transmitting at least one sawtooth pulse to a multi-anode deflector tube and supplying the pulses generated at its anodes to a collector bar from either end of which groups of pulses may be obtained. The method is described with regard to an example of multiplication in an electrical calculating machine. For each order of the multiplicand a deflector tube Rd<SP>1</SP>, Rd<SP>2</SP> is provided having its anodes connected to separate points in a chain of normally-closed switches described as a collector bar. By depression of a selected key any one of the switches in a collector bar may be opened to represent the multiplicand digit in that order. As shown, digit " four." is set up in the tens order Md<SP>2</SP> and digit "nine" in the units order Md<SP>1</SP>. The multiplier digits are entered one at a time on a key bank, the multiplier collector bar Mr being shown registering digit " two ". The depression of a multiplier key activates a one-shot multivibrator M1, causing it to deliver a sawtooth waveform to the deflector plates of the multiplier deflector tube Rr. This causes the beam of the tube to be scanned across all the anodes and gives rise to a succession of pulses in the anode leads. The first group of these pulses is available at the left-hand end of the collector bar, but after the open switch contact has been passed subsequent pulses are delivered from the right-hand end of the collector bar to a one-shot multivibrator M3. For each pulse received this device delivers a sawtooth waveform which, preferably, is applied to the multiplicand tubes in succession so as to avoid overlap of entry pulses and carry-over pulses in the final accumulator Z1... Z12 which may consist of decimal counting tubes or flip-flops, transistors; ferrite elements, relays, &c. Thus, from the right-hand end of each collector bar Md<SP>1</SP>, Md<SP>2</SP>, &c., groups of pulses are delivered, the number of groups corresponding to the multiplier digit and the number of pulses in each group corresponding to the multiplicand digit. When the multiplier key is released and the corresponding contact of the collector bar Mr is closed again, a signal is delivered via a oneshot multivibrator M4 to a series of tubes S1, S2, &c. which move only one step for each pulse received. Thus, the position of the beam in each tube moves forward one step to mark the next one of the output terminals A ... K, A<SP>1</SP> ... K<SP>1</SP>, and so control the groups of diode gates forming the entry circuits to the accumulator Z1 . . . Z12 to effect a one-denomination shift preparatory to the arrival of more groups of pulses initiated by the next depression of a multiplier key. Another method of avoiding overlap of entry pulses and carry pulses by alternate operation of odd-number orders and even-number orders, is suggested.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DENDAT1050097D DE1050097B (en) | 1954-10-11 | Electronic computing system | |
US539879A US2936956A (en) | 1954-10-11 | 1955-10-11 | Electronic computer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB812829A true GB812829A (en) | 1959-05-06 |
Family
ID=1744289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3541755A Expired GB812829A (en) | 1954-10-11 | 1955-12-09 | Method of generating pulse groups and multiples thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB812829A (en) |
-
1955
- 1955-12-09 GB GB3541755A patent/GB812829A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2686632A (en) | Digital computer | |
US2528394A (en) | Electronic remote-controlled registering system | |
US2697549A (en) | Electronic multiradix counter of matrix type | |
US2690507A (en) | Electronic multiplier | |
GB716486A (en) | Improvements in apparatus for electrically performing the mathematical operation of converting a number from one scale of notation into another | |
US3084285A (en) | Pulse generator for electronic multiplier | |
US2528100A (en) | Electronic calculator | |
GB769726A (en) | Improvements relating to digital calculating apparatus | |
US2729812A (en) | Apparatus for converting digital information to an analog voltage | |
US2907525A (en) | Radix converter | |
US3072047A (en) | Printing apparatus | |
GB721180A (en) | Improvements in or relating to binary digit storage devices and register for digitalinformation | |
US3021066A (en) | Electronic calculator | |
GB767708A (en) | Improvements in electronic multiplying machines | |
GB740756A (en) | Introduction and extraction arrangement for electronic calculators | |
GB812829A (en) | Method of generating pulse groups and multiples thereof | |
US2783415A (en) | Multi-electrode gaseous-discharge tube circuits | |
US2961160A (en) | Electronic multiplier | |
GB675448A (en) | Improvements in and relating to apparatus for digital computation | |
US3031139A (en) | Electronic computer for addition, subtraction, multiplication and division in the decimal system | |
GB698834A (en) | Improvements in apparatus for converting an electrical representation of a number from the binary to the denary scale of notation | |
GB1042786A (en) | Improvements in or relating to calculating machines | |
US2892182A (en) | Register for digital information | |
GB738605A (en) | Improvements in or relating to electronic adding circuits | |
US2884192A (en) | Bi-quinary accumulator |