GB636107A - Electron discharge tube for differentiating an input signal - Google Patents

Electron discharge tube for differentiating an input signal

Info

Publication number
GB636107A
GB636107A GB378346A GB378346A GB636107A GB 636107 A GB636107 A GB 636107A GB 378346 A GB378346 A GB 378346A GB 378346 A GB378346 A GB 378346A GB 636107 A GB636107 A GB 636107A
Authority
GB
United Kingdom
Prior art keywords
anode
input signal
gun
electrode
differentiating
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
GB378346A
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.)
Farnsworth Television and Radio Corp
Original Assignee
Farnsworth Television and Radio Corp
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 Farnsworth Television and Radio Corp filed Critical Farnsworth Television and Radio Corp
Priority to GB378346A priority Critical patent/GB636107A/en
Publication of GB636107A publication Critical patent/GB636107A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • 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
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/42—Image pick-up tubes having an input of visible light and electric output with image screen generating a composite electron beam which is deflected as a whole past a stationary probe to simulate a scanning effect, e.g. Farnsworth pick-up tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

636,107. Electron beam apparatus. TRIGGS, W. W. (Farnsworth Television & Radio Corporation). Feb. 6, 1946, No. 3783. [Class 39 (i)]À [Also in Group XL (c)] An arrangement for producing an output signal which is the time derivative of an input signal comprises a cathode-ray tube in which an electron beam is intensity-modulated by an input signal and passes through and induces the differentiated output in ring electrode 17 before impinging on anode 12, and the arrangement further comprises an electrode 16 extending most of the way from the electron gun to the anode 12 and maintained at a constant D.C. potential. The anode 12 may be negative, positive, or at the same potential with reference to gun anode 7, and the input signal is applied to control grid 6. Electrode 16 is a metallic coating on the inner wall of the envelope, and may be connected to either gun anode 7 or anode 12. Coil 30 provides a magnetic focusing field. Specification 478,095 is referred to.
GB378346A 1946-02-06 1946-02-06 Electron discharge tube for differentiating an input signal Expired GB636107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB378346A GB636107A (en) 1946-02-06 1946-02-06 Electron discharge tube for differentiating an input signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB378346A GB636107A (en) 1946-02-06 1946-02-06 Electron discharge tube for differentiating an input signal

Publications (1)

Publication Number Publication Date
GB636107A true GB636107A (en) 1950-04-26

Family

ID=9764832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB378346A Expired GB636107A (en) 1946-02-06 1946-02-06 Electron discharge tube for differentiating an input signal

Country Status (1)

Country Link
GB (1) GB636107A (en)

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