JPS5776979A - Signal processing circuit for television receiver - Google Patents

Signal processing circuit for television receiver

Info

Publication number
JPS5776979A
JPS5776979A JP55151395A JP15139580A JPS5776979A JP S5776979 A JPS5776979 A JP S5776979A JP 55151395 A JP55151395 A JP 55151395A JP 15139580 A JP15139580 A JP 15139580A JP S5776979 A JPS5776979 A JP S5776979A
Authority
JP
Japan
Prior art keywords
correlation
outputted
outputs
switch
signal processing
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
JP55151395A
Other languages
Japanese (ja)
Inventor
Michitaka Osawa
Hitoshi Maekawa
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 JP55151395A priority Critical patent/JPS5776979A/en
Publication of JPS5776979A publication Critical patent/JPS5776979A/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

Landscapes

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

Abstract

PURPOSE:To improve the sharpness, by controlling the synthesized value according to the correlation of adjacent scanning line information, in a signal processing circuit which synthesizes a new signal from an existing signal and doubles the number of scanning lines. CONSTITUTION:The information included in an odd number of scanning line is outputted from (A) of a field memory 1, and the information included in an even number of scanning line is outputted from (B) of the field memory 1. The outputs are alternately outputted through switches S1, S2. An addition and synthesis circuit 2 processes the outputs of (A) and (B) of the memory 1 and the output is outputted via a switch S3. A correlation detecting circuit 3 detects the correlation of the both outputs (A) and (B) of the memory 1 to switch the switch S3 according to the degree of this relation. Thus, since the output of the circuit 2 is not used when no correlation, the sharpness is not lowered.
JP55151395A 1980-10-30 1980-10-30 Signal processing circuit for television receiver Pending JPS5776979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55151395A JPS5776979A (en) 1980-10-30 1980-10-30 Signal processing circuit for television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55151395A JPS5776979A (en) 1980-10-30 1980-10-30 Signal processing circuit for television receiver

Publications (1)

Publication Number Publication Date
JPS5776979A true JPS5776979A (en) 1982-05-14

Family

ID=15517640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55151395A Pending JPS5776979A (en) 1980-10-30 1980-10-30 Signal processing circuit for television receiver

Country Status (1)

Country Link
JP (1) JPS5776979A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6020680A (en) * 1983-07-15 1985-02-01 Canon Inc Picture processing method
JPS6039984A (en) * 1983-08-12 1985-03-02 Sony Corp Television receiver
JPS6130887A (en) * 1984-07-23 1986-02-13 Hitachi Ltd Signal converting circuit of digital television receiver
JPS6243989A (en) * 1985-08-22 1987-02-25 Nec Home Electronics Ltd Video adaptive scanning line interpolating device
JPS6277979U (en) * 1985-11-05 1987-05-19
JPH0614736B2 (en) * 1981-09-08 1994-02-23 アールシーエー トムソン ライセンシング コーポレイション Television display

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0614736B2 (en) * 1981-09-08 1994-02-23 アールシーエー トムソン ライセンシング コーポレイション Television display
JPS6020680A (en) * 1983-07-15 1985-02-01 Canon Inc Picture processing method
JPH0247911B2 (en) * 1983-07-15 1990-10-23 Canon Kk
JPS6039984A (en) * 1983-08-12 1985-03-02 Sony Corp Television receiver
JPH0512907B2 (en) * 1983-08-12 1993-02-19 Sony Corp
JPS6130887A (en) * 1984-07-23 1986-02-13 Hitachi Ltd Signal converting circuit of digital television receiver
JPH0548666B2 (en) * 1984-07-23 1993-07-22 Hitachi Ltd
JPS6243989A (en) * 1985-08-22 1987-02-25 Nec Home Electronics Ltd Video adaptive scanning line interpolating device
JPH0342832B2 (en) * 1985-08-22 1991-06-28
JPS6277979U (en) * 1985-11-05 1987-05-19

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