JPS55120279A - Still picture transmitter - Google Patents

Still picture transmitter

Info

Publication number
JPS55120279A
JPS55120279A JP2769079A JP2769079A JPS55120279A JP S55120279 A JPS55120279 A JP S55120279A JP 2769079 A JP2769079 A JP 2769079A JP 2769079 A JP2769079 A JP 2769079A JP S55120279 A JPS55120279 A JP S55120279A
Authority
JP
Japan
Prior art keywords
sound
sends
alarm
transmission
rewrite
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.)
Pending
Application number
JP2769079A
Other languages
Japanese (ja)
Inventor
Masaru Hirono
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP2769079A priority Critical patent/JPS55120279A/en
Publication of JPS55120279A publication Critical patent/JPS55120279A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/1961—Movement detection not involving frame subtraction, e.g. motion detection on the basis of luminance changes in the image

Abstract

PURPOSE:To relieve a burden on a person who exercises a supervision, by providing an alarm function part, which sends a sound or optical alarm on detecting a changing part, to at least either transmission or reception part. CONSTITUTION:The detection signal of the change point of change detection part 4 is applied to alarm function part 10, which sends a sound or optical alarm. In transmission, an index showing a changing area is appended and changing part on a screen is sent to transmission line 5. At a reception side, on the other hand, rewrite instruction part 6 sends a rewrite instruction by receiving the index to rewrite the contents of one-frame memory 7, and this instruction puts alarm function part 11 into operation to generate a sound or optical alarm. Then, the contents of one- frame memory 7 are read out and converted into an analog signal, which is displayed on television monitor 9.
JP2769079A 1979-03-12 1979-03-12 Still picture transmitter Pending JPS55120279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2769079A JPS55120279A (en) 1979-03-12 1979-03-12 Still picture transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2769079A JPS55120279A (en) 1979-03-12 1979-03-12 Still picture transmitter

Publications (1)

Publication Number Publication Date
JPS55120279A true JPS55120279A (en) 1980-09-16

Family

ID=12227957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2769079A Pending JPS55120279A (en) 1979-03-12 1979-03-12 Still picture transmitter

Country Status (1)

Country Link
JP (1) JPS55120279A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176471U (en) * 1982-05-20 1983-11-25 三洋電機株式会社 Teletext receiver
JPS6019375A (en) * 1983-06-03 1985-01-31 アメリカン・テレフオン・アンド・テレグラフ・カムパニ− Method of transmitting three continuous television signals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176471U (en) * 1982-05-20 1983-11-25 三洋電機株式会社 Teletext receiver
JPH0139023Y2 (en) * 1982-05-20 1989-11-21
JPS6019375A (en) * 1983-06-03 1985-01-31 アメリカン・テレフオン・アンド・テレグラフ・カムパニ− Method of transmitting three continuous television signals

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