JPS57111178A - Television signal converter for infrared video signal - Google Patents

Television signal converter for infrared video signal

Info

Publication number
JPS57111178A
JPS57111178A JP55186892A JP18689280A JPS57111178A JP S57111178 A JPS57111178 A JP S57111178A JP 55186892 A JP55186892 A JP 55186892A JP 18689280 A JP18689280 A JP 18689280A JP S57111178 A JPS57111178 A JP S57111178A
Authority
JP
Japan
Prior art keywords
output
mirror
signal
phase
converter
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
JP55186892A
Other languages
Japanese (ja)
Inventor
Toyohisa Teraoka
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55186892A priority Critical patent/JPS57111178A/en
Publication of JPS57111178A publication Critical patent/JPS57111178A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE:To control the composite synchronous signal given from a TV signal generator with the output of a VCO and to perform the convertion of TV signals with a certain level of the power consumption at all times, by comparing the phase of output between a resonance vibration mirror and the TV signal generator and then controlling the VCO with the ouptut of the phase comparison. CONSTITUTION:A vibrating part 4 is vibrated with a certain period by the output of a driving circuit 15 of a resonance vibration mirror 3 to energize the mirror 3. Thus the image of an object 1 can be detected by a multielement infrared-ray sensor 8 via a lens 2. This detection signal is supplied to an A/D converter 10 to detect the period of the mirror 3 by a detector 7, and the detection signal of the detector 7 is fed back to a circuit 5 to give vibrations to the mirror 3 with a certain period. At the same time, a phase comparator 16 compares the phase theta1 of the output signal of the circuit 15 with the phase theta2 of the output signal given from a TV signal generator 18. Then a VCO17 is controlled by the result of the phase comparison, and the generator 18 is controlled by the output of the VCO17. Thus the relative synchronism is always secured between the output frequency and the frequency of the mirror 3, and the output signal of the generator 18 is applied to the converter 10, a memory circuit 11 and a D/A converter 12 respectively.
JP55186892A 1980-12-26 1980-12-26 Television signal converter for infrared video signal Pending JPS57111178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55186892A JPS57111178A (en) 1980-12-26 1980-12-26 Television signal converter for infrared video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55186892A JPS57111178A (en) 1980-12-26 1980-12-26 Television signal converter for infrared video signal

Publications (1)

Publication Number Publication Date
JPS57111178A true JPS57111178A (en) 1982-07-10

Family

ID=16196506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55186892A Pending JPS57111178A (en) 1980-12-26 1980-12-26 Television signal converter for infrared video signal

Country Status (1)

Country Link
JP (1) JPS57111178A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699361A1 (en) * 1992-12-10 1994-06-17 Loral Fairchild Corp Set and method for electro-optical panoramic scanning sector recognition.
WO1996008104A1 (en) * 1994-09-06 1996-03-14 Alliedsignal Inc. A thermal imaging apparatus with bias modulation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699361A1 (en) * 1992-12-10 1994-06-17 Loral Fairchild Corp Set and method for electro-optical panoramic scanning sector recognition.
WO1996008104A1 (en) * 1994-09-06 1996-03-14 Alliedsignal Inc. A thermal imaging apparatus with bias modulation

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