JPS57206176A - Signal processor for television picture receiver of high picture quality - Google Patents

Signal processor for television picture receiver of high picture quality

Info

Publication number
JPS57206176A
JPS57206176A JP56090826A JP9082681A JPS57206176A JP S57206176 A JPS57206176 A JP S57206176A JP 56090826 A JP56090826 A JP 56090826A JP 9082681 A JP9082681 A JP 9082681A JP S57206176 A JPS57206176 A JP S57206176A
Authority
JP
Japan
Prior art keywords
odd
video signal
scanning line
scanning lines
scanning
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
JP56090826A
Other languages
Japanese (ja)
Inventor
Hitoshi Maekawa
Michitaka Osawa
Kunio Ando
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56090826A priority Critical patent/JPS57206176A/en
Publication of JPS57206176A publication Critical patent/JPS57206176A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal

Abstract

PURPOSE:To prevent the deterioration of the quality of an image, by giving a conversion of scanning line to both the odd and even fields, mixing these fields with a prescribed ratio to form new odd and even fields and vignetting the boundary of the image. CONSTITUTION:The switches S2 and S3 are connected to a contact A with the odd scanning lines and to a contact B with the even scanning lines respectively. As a result, a video signal in which the video signal of the odd field scanning line that received the time compression with each odd scanning line is mixed with the video signal of the even field scanning line with the k:l amplification ratio is obtained from the switch S2. At the same time, the video signal of the odd and even field scanning lines is obtained with the l:k amplification ratio and with each even scanning line. On the other hand, a video signal in which the video signals of the odd and even field scanning lines are mixed with the m:n amplification ratio is obtained from the switch S3 with each odd scanning line. Then a video signal having the scanning lines of a field which is double as much as the signal obtained by an input TV interlacing scanning system is obtained from the switch S1.
JP56090826A 1981-06-15 1981-06-15 Signal processor for television picture receiver of high picture quality Pending JPS57206176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090826A JPS57206176A (en) 1981-06-15 1981-06-15 Signal processor for television picture receiver of high picture quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090826A JPS57206176A (en) 1981-06-15 1981-06-15 Signal processor for television picture receiver of high picture quality

Publications (1)

Publication Number Publication Date
JPS57206176A true JPS57206176A (en) 1982-12-17

Family

ID=14009389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090826A Pending JPS57206176A (en) 1981-06-15 1981-06-15 Signal processor for television picture receiver of high picture quality

Country Status (1)

Country Link
JP (1) JPS57206176A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS634377A (en) * 1986-06-24 1988-01-09 Nec Corp Image memory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS634377A (en) * 1986-06-24 1988-01-09 Nec Corp Image memory

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