FR789987A - Protective system for cathode ray tubes - Google Patents

Protective system for cathode ray tubes

Info

Publication number
FR789987A
FR789987A FR789987DA FR789987A FR 789987 A FR789987 A FR 789987A FR 789987D A FR789987D A FR 789987DA FR 789987 A FR789987 A FR 789987A
Authority
FR
France
Prior art keywords
cathode ray
ray tubes
protective system
protective
tubes
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)
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
Application granted granted Critical
Publication of FR789987A publication Critical patent/FR789987A/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
    • H04N3/20—Prevention of damage to cathode-ray tubes in the event of failure of scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
FR789987D 1934-05-19 1935-05-14 Protective system for cathode ray tubes Expired FR789987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US726442A US2098384A (en) 1934-05-19 1934-05-19 Protective system

Publications (1)

Publication Number Publication Date
FR789987A true FR789987A (en) 1935-11-09

Family

ID=24918618

Family Applications (1)

Application Number Title Priority Date Filing Date
FR789987D Expired FR789987A (en) 1934-05-19 1935-05-14 Protective system for cathode ray tubes

Country Status (3)

Country Link
US (1) US2098384A (en)
BE (1) BE409520A (en)
FR (1) FR789987A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942827C (en) * 1952-03-16 1956-05-09 Hans Werner Paehr Dr Rer Nat Arrangement for the protection of the fluorescent screen of Braun tubes in electrical receivers and display devices, especially television sets
DE1032424B (en) * 1952-07-12 1958-06-19 Philips Patentverwaltung Circuit arrangement for protecting the screen of a cathode ray tube against overload

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492674A (en) * 1945-12-20 1949-12-27 Sylvania Electric Prod Cathode-ray tube circuits
US2444902A (en) * 1946-02-27 1948-07-06 Rca Corp Protective circuit
US2455992A (en) * 1947-01-25 1948-12-14 Du Mont Allen B Lab Inc Cathode-ray tube amusement device
US2625265A (en) * 1947-04-01 1953-01-13 Electric Sorting Machine Compa Photoelectric sorting apparatus
US2635208A (en) * 1948-04-21 1953-04-14 John M Cage Television circuit
US2584932A (en) * 1949-07-16 1952-02-05 Rca Corp Television kinescope projection circuit
US2607018A (en) * 1949-11-29 1952-08-12 Rca Corp Means and method for protecting kinescope screens
US2577848A (en) * 1950-02-16 1951-12-11 Rca Corp Protective circuit
US2709768A (en) * 1952-06-05 1955-05-31 Gen Precision Lab Inc Cathode ray tube protection circuits
US2810858A (en) * 1954-06-14 1957-10-22 Itt Protective circuit
US2808536A (en) * 1954-11-18 1957-10-01 Rca Corp Cathode ray tube protecting and energizing circuits
US3090889A (en) * 1960-05-03 1963-05-21 Bell Telephone Labor Inc Electron beam intensity control circuit
US3164745A (en) * 1961-05-02 1965-01-05 Shulman Abraham Sweep collapse and rotation failure alarm system for ppi display device
US3402316A (en) * 1966-09-29 1968-09-17 Sylvania Electric Prod Flux switch protective system for electrical apparatus
US3555348A (en) * 1969-01-13 1971-01-12 Ibm Cathode ray tube screen protection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942827C (en) * 1952-03-16 1956-05-09 Hans Werner Paehr Dr Rer Nat Arrangement for the protection of the fluorescent screen of Braun tubes in electrical receivers and display devices, especially television sets
DE1032424B (en) * 1952-07-12 1958-06-19 Philips Patentverwaltung Circuit arrangement for protecting the screen of a cathode ray tube against overload

Also Published As

Publication number Publication date
BE409520A (en) 1935-06-29
US2098384A (en) 1937-11-09

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