GB729206A - Electronic character selecting and/or printing apparatus - Google Patents

Electronic character selecting and/or printing apparatus

Info

Publication number
GB729206A
GB729206A GB22508/51A GB2250851A GB729206A GB 729206 A GB729206 A GB 729206A GB 22508/51 A GB22508/51 A GB 22508/51A GB 2250851 A GB2250851 A GB 2250851A GB 729206 A GB729206 A GB 729206A
Authority
GB
United Kingdom
Prior art keywords
currents
windings
cores
transformers
predetermined
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
GB22508/51A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB729206A publication Critical patent/GB729206A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B19/00—Photoelectronic composing machines
    • B41B19/01—Photoelectronic composing machines having electron-beam tubes producing an image of at least one character which is photographed
    • B41B19/02—Photoelectronic composing machines having electron-beam tubes producing an image of at least one character which is photographed the characters appearing on the screen in succession
    • B41B19/06—Photoelectronic composing machines having electron-beam tubes producing an image of at least one character which is photographed the characters appearing on the screen in succession at different predetermined places
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/16—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with mask carrying a number of selectively displayable signs, e.g. charactron, numeroscope
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/30—Apparatus or circuits at the receiving end using electric or electronic translation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4902—Pulse width modulation; Pulse position modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Dc-Dc Converters (AREA)

Abstract

729,206. Magnetic amplifiers. RADIO CORPORATION OF AMERICA. Sept. 26, 1951 [Oct. 2, 1950], No. 22508/51. Class 40 (4). [Also in Group XL (b)] An arrangement for deriving a signal indication by selective response to two currents of predetermined magnitudes comprises, Fig. 6, two saturable transformers connected in cascase, currents of the predetermined values being applied to windings 243, 252 on the cores of the transformers. When the input currents to winding 246, 251 are identical with the predetermined currents, the cores are desaturated so that a path is opened from the oscillator 240 to the rectifier network 255 and output terminals 256. In the alternative arrangement, Fig. 7, the windings on the limbs of the transformers 261, 262 are connected in series to operate as saturable core reactors. Currents of the prescribed values are applied to windings 278, 279 and the application of identical signal currents to the windings 276, 277 suppresses or decreases substantially the output normally derived at terminals 282 from the oscillator 264 via rectified network 281. A capacitor 268 tunes the system to series resonance when the cores are saturated and a second capacitor 271 tunes the inductances represented by the windings on the cores to parallel resonance at the frequency of the generator 264 when the cores are unsaturated.
GB22508/51A 1950-10-02 1951-09-26 Electronic character selecting and/or printing apparatus Expired GB729206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US187879A US2807663A (en) 1950-10-02 1950-10-02 Electronic character selecting and/or printing apparatus

Publications (1)

Publication Number Publication Date
GB729206A true GB729206A (en) 1955-05-04

Family

ID=22690870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22508/51A Expired GB729206A (en) 1950-10-02 1951-09-26 Electronic character selecting and/or printing apparatus

Country Status (3)

Country Link
US (1) US2807663A (en)
FR (1) FR1050930A (en)
GB (1) GB729206A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104240B (en) * 1955-10-07 1961-04-06 Sperry Rand Corp Device for filling perforated recording media
DE1148786B (en) * 1959-06-25 1963-05-16 Creed & Co Ltd Photoelectric punch tape scanner
DE1267447B (en) * 1964-12-01 1968-05-02 Litton Industries Inc Display device
DE1281196B (en) * 1966-10-05 1968-10-24 Standard Elektrik Lorenz Ag Arrangement for converting a punched tape code into a decrypted representation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226706A (en) * 1965-12-28 Cathode ray tube display and printer controlled by coded mask
US3037202A (en) * 1962-05-29 figure
US3017234A (en) * 1956-05-31 1962-01-16 Ncr Co Electromagnetic printer
US3071762A (en) * 1956-11-09 1963-01-01 North American Aviation Inc Analog-to-digital converter
US2938721A (en) * 1957-03-15 1960-05-31 Western Union Telegraph Co Copy sheet storage and feed mechanism
NL241495A (en) * 1958-07-21
DE1166898B (en) * 1961-12-02 1964-04-02 Masing & Co K G Dr Method and device for photoelectrically scanning an information carrier
US3289196A (en) * 1962-02-19 1966-11-29 Hull Instr Inc Cathode ray tube display with means for recording the tube display
US3243507A (en) * 1963-03-08 1966-03-29 Stanford Research Inst Bandwidth reduction facsimile system
US3582204A (en) * 1968-02-08 1971-06-01 Iben Browning Reproduction system using punched tape
CN113617698B (en) * 2021-08-20 2022-12-06 杭州海康机器人股份有限公司 Package tracing method, device and system, electronic equipment and storage medium

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1978684A (en) * 1928-11-09 1934-10-30 Associated Electric Lab Inc Television
US2098390A (en) * 1934-05-26 1937-11-09 Rca Corp Television transmitting apparatus
US2219149A (en) * 1937-02-06 1940-10-22 Alfred N Goldsmith Television system
GB530776A (en) * 1939-03-06 1940-12-20 Scophony Ltd Improvements in or relating to the secret transmission of television and like signals
US2283383A (en) * 1940-06-18 1942-05-19 Joseph T Mcnaney Signaling system
US2275017A (en) * 1940-06-18 1942-03-03 Joseph T Mcnaney Signaling system
US2442403A (en) * 1942-09-23 1948-06-01 Rca Corp Electronic switching and computing device
US2379880A (en) * 1942-10-07 1945-07-10 Bell Telephone Labor Inc High-speed telegraph system
BE475864A (en) * 1942-10-07
US2517986A (en) * 1946-03-01 1950-08-08 Ibm Commutator
US2603418A (en) * 1946-12-07 1952-07-15 Farnsworth Res Corp Electronic indicator tube
US2538065A (en) * 1947-08-26 1951-01-16 Panoramic Radio Corp Synchronous telemetric system
US2548049A (en) * 1948-07-10 1951-04-10 Geophysical Service Inc Magnetic amplifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104240B (en) * 1955-10-07 1961-04-06 Sperry Rand Corp Device for filling perforated recording media
DE1148786B (en) * 1959-06-25 1963-05-16 Creed & Co Ltd Photoelectric punch tape scanner
DE1267447B (en) * 1964-12-01 1968-05-02 Litton Industries Inc Display device
DE1281196B (en) * 1966-10-05 1968-10-24 Standard Elektrik Lorenz Ag Arrangement for converting a punched tape code into a decrypted representation

Also Published As

Publication number Publication date
FR1050930A (en) 1954-01-12
US2807663A (en) 1957-09-24

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