JPS57112185A - System for correction of oscillatory type scanning mirror - Google Patents

System for correction of oscillatory type scanning mirror

Info

Publication number
JPS57112185A
JPS57112185A JP55187246A JP18724680A JPS57112185A JP S57112185 A JPS57112185 A JP S57112185A JP 55187246 A JP55187246 A JP 55187246A JP 18724680 A JP18724680 A JP 18724680A JP S57112185 A JPS57112185 A JP S57112185A
Authority
JP
Japan
Prior art keywords
counter
signal
scanning mirror
sampling pulse
oscillatory type
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
JP55187246A
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 JP55187246A priority Critical patent/JPS57112185A/en
Publication of JPS57112185A publication Critical patent/JPS57112185A/en
Pending 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
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H04N3/08—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector
    • H04N3/09—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector for electromagnetic radiation in the invisible region, e.g. infrared

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To obtain a simple-constitution device of less picture distortion, by converting the infrared video signal, which is obtained by a scanning mirror, to a linear TV signal by a sampling pulse correcting circuit. CONSTITUTION:When an oscillatory type scanning mirror 12 scans, this scanning is detected by a detector 15. By the start signal from the detector 15, a reference clock signal has the frequency divided by load data from a P-ROM17 to output a carrier by a counter 16. This carrier is counted by an address counter 18, and an address of the P-ROM17 is designated by the value of the counter 18 to load next data to the counter 16. This operation is repeated to input the sampling pulse corresponding to the scanning time to an A/D converter 19 from the counter 16. Further, this signal is sampled by the same sampling pulse and is subjected to A/D conversion and is stored in a memory 20 and is converted to a reference TV signal by a D/A converter.
JP55187246A 1980-12-29 1980-12-29 System for correction of oscillatory type scanning mirror Pending JPS57112185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55187246A JPS57112185A (en) 1980-12-29 1980-12-29 System for correction of oscillatory type scanning mirror

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55187246A JPS57112185A (en) 1980-12-29 1980-12-29 System for correction of oscillatory type scanning mirror

Publications (1)

Publication Number Publication Date
JPS57112185A true JPS57112185A (en) 1982-07-13

Family

ID=16202599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55187246A Pending JPS57112185A (en) 1980-12-29 1980-12-29 System for correction of oscillatory type scanning mirror

Country Status (1)

Country Link
JP (1) JPS57112185A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604386A (en) * 1983-06-22 1985-01-10 Fujitsu Ltd Enlarged display system of video device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604386A (en) * 1983-06-22 1985-01-10 Fujitsu Ltd Enlarged display system of video device
JPH0554304B2 (en) * 1983-06-22 1993-08-12 Fujitsu Ltd

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