US2189315A - Television receiver - Google Patents

Television receiver Download PDF

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Publication number
US2189315A
US2189315A US140152A US14015237A US2189315A US 2189315 A US2189315 A US 2189315A US 140152 A US140152 A US 140152A US 14015237 A US14015237 A US 14015237A US 2189315 A US2189315 A US 2189315A
Authority
US
United States
Prior art keywords
cathode ray
current
image
cathode
anode
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
Application number
US140152A
Other languages
English (en)
Inventor
Karolus August
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Application granted granted Critical
Publication of US2189315A publication Critical patent/US2189315A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays

Definitions

  • a multiplicity of cathode ray systems comprising fluorescent screens are so to say placed in parallel, so that each cathode ray system is permitted to bombard its fluorescent screen during a time that is longer than that available for transmitting the respective image element.
  • the current in the individual cathode ray systems can be controlled by means of a cathode ray switch in which each contact element assigned to one cathode ray system is engaged by the switching cathode ray only for about the length of time in which the respective brightness value to be imparted to the image element is televised.
  • control grids 30 instead of bringing out the control grids 30 separately as shown in Fig. 5, also an indirectly heated cathode may be used, and the carriers of the active cathode material may be brought out separately. In this latter case, all control grids have a common fixed potential applied. The current is then controlled in each cathode ray system in that the individual cathode carriers receive a higher or lower potential relative to the common control grid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
US140152A 1936-05-06 1937-05-01 Television receiver Expired - Lifetime US2189315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2189315X 1936-05-06

Publications (1)

Publication Number Publication Date
US2189315A true US2189315A (en) 1940-02-06

Family

ID=7989272

Family Applications (1)

Application Number Title Priority Date Filing Date
US140152A Expired - Lifetime US2189315A (en) 1936-05-06 1937-05-01 Television receiver

Country Status (2)

Country Link
US (1) US2189315A (fr)
FR (1) FR821449A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474811A (en) * 1946-10-05 1949-07-05 Fed Telecomm Lab Inc Translating system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630548A (en) * 1937-12-04 1953-03-03 Muller Egon Nicolas Cathode-ray system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474811A (en) * 1946-10-05 1949-07-05 Fed Telecomm Lab Inc Translating system

Also Published As

Publication number Publication date
FR821449A (fr) 1937-12-04

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