CA979520A - Television special effects control pulse-generating apparatus - Google Patents

Television special effects control pulse-generating apparatus

Info

Publication number
CA979520A
CA979520A CA140,691A CA140691A CA979520A CA 979520 A CA979520 A CA 979520A CA 140691 A CA140691 A CA 140691A CA 979520 A CA979520 A CA 979520A
Authority
CA
Canada
Prior art keywords
generating apparatus
control pulse
special effects
effects control
television special
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
CA140,691A
Other languages
English (en)
Other versions
CA140691S (en
Inventor
Laurence J. Thorpe
Joseph A. Killough
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
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 filed Critical RCA Corp
Application granted granted Critical
Publication of CA979520A publication Critical patent/CA979520A/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
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • H04N5/275—Generation of keying signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/02—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform
    • H03K4/026—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform using digital techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/04—Generating pulses having essentially a finite slope or stepped portions having parabolic shape
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K6/00—Manipulating pulses having a finite slope and not covered by one of the other main groups of this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
CA140,691A 1971-05-28 1972-04-26 Television special effects control pulse-generating apparatus Expired CA979520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14787771A 1971-05-28 1971-05-28

Publications (1)

Publication Number Publication Date
CA979520A true CA979520A (en) 1975-12-09

Family

ID=22523284

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,691A Expired CA979520A (en) 1971-05-28 1972-04-26 Television special effects control pulse-generating apparatus

Country Status (9)

Country Link
US (1) US3757041A (de)
JP (1) JPS547168B1 (de)
AT (1) AT322018B (de)
AU (1) AU463871B2 (de)
CA (1) CA979520A (de)
FR (1) FR2140004B1 (de)
GB (1) GB1338346A (de)
IT (1) IT955918B (de)
NL (1) NL7207152A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818130A (en) * 1973-01-09 1974-06-18 Westinghouse Electric Corp Reading pacer for educational television
US3833760A (en) * 1973-02-27 1974-09-03 Ferranti Ltd Television systems
US4356511A (en) * 1978-05-23 1982-10-26 Sony Corporation Digital soft-edge video special effects generator
US4620291A (en) * 1984-02-06 1986-10-28 Mcdonnell Douglas Corporation Digital-to-analog converter interpolator
US4605967A (en) * 1984-03-12 1986-08-12 Pires H George Digital video special effects generator
US5184222A (en) * 1990-01-19 1993-02-02 Matsushita Electric Industrial Co., Ltd. Wipe generator having start position and width controller
JP3182759B2 (ja) * 1990-09-05 2001-07-03 ソニー株式会社 パラボラ波発生回路
KR19980020968A (ko) * 1996-09-13 1998-06-25 구자홍 영상표시기기의 휘도조정장치
KR20230049120A (ko) 2020-10-16 2023-04-12 닛폰세이테츠 가부시키가이샤 핫 스탬프용 강판 및 그 제조 방법, 그리고, 핫 스탬프 부재 및 그 제조 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240420A (en) * 1939-05-11 1941-04-29 Philco Radio & Television Corp Electrical system
FR1496141A (fr) * 1966-06-03 1967-09-29 Cit Alcatel Générateur d'ondes modulées en fréquence
GB1141952A (en) * 1967-01-19 1969-02-05 Airmec Ltd Improvements in or relating to electrical oscillators
US3581011A (en) * 1967-10-23 1971-05-25 Telemation Television broadcast synchronizing apparatus and method

Also Published As

Publication number Publication date
US3757041A (en) 1973-09-04
AU463871B2 (en) 1975-08-07
FR2140004B1 (de) 1978-03-03
IT955918B (it) 1973-09-29
NL7207152A (de) 1972-11-30
DE2225501A1 (de) 1972-12-07
DE2225501B2 (de) 1974-06-12
FR2140004A1 (de) 1973-01-12
AU4280072A (en) 1973-11-29
AT322018B (de) 1975-04-25
GB1338346A (en) 1973-11-21
JPS547168B1 (de) 1979-04-04

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