FR939252A - Improvements to television devices - Google Patents

Improvements to television devices

Info

Publication number
FR939252A
FR939252A FR939252DA FR939252A FR 939252 A FR939252 A FR 939252A FR 939252D A FR939252D A FR 939252DA FR 939252 A FR939252 A FR 939252A
Authority
FR
France
Prior art keywords
television devices
television
devices
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
Other languages
French (fr)
Inventor
Prafulla Kumar Chatterjea
Dermot Min Ambrose
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR939252A publication Critical patent/FR939252A/en
Expired legal-status Critical Current

Links

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
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/24—Blanking circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H03K4/28—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H03K4/28—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device
    • H03K4/32—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device combined with means for generating the driving pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
FR939252D 1942-07-24 1946-08-28 Improvements to television devices Expired FR939252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10371/42A GB558927A (en) 1942-07-24 1942-07-24 Improvements in or relating to television

Publications (1)

Publication Number Publication Date
FR939252A true FR939252A (en) 1948-11-09

Family

ID=9966609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR939252D Expired FR939252A (en) 1942-07-24 1946-08-28 Improvements to television devices

Country Status (4)

Country Link
US (1) US2433342A (en)
BE (1) BE479720A (en)
FR (1) FR939252A (en)
GB (1) GB558927A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612633A (en) * 1950-09-13 1952-09-30 Bell Telephone Labor Inc Multiplex converter
US2848557A (en) * 1952-03-22 1958-08-19 Wurlitzer Co Automatic volume level control for phonographs
US2797265A (en) * 1953-03-31 1957-06-25 Rca Corp Pulse amplifier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB457929A (en) * 1935-06-08 1936-12-08 Marconi Wireless Telegraph Co Improvements in or relating to cathode ray tube apparatus
US2315073A (en) * 1941-05-01 1943-03-30 Bell Telephone Labor Inc Electric circuits

Also Published As

Publication number Publication date
US2433342A (en) 1947-12-30
GB558927A (en) 1944-01-27
BE479720A (en)

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