JPS5623079A - Television picture receiver - Google Patents

Television picture receiver

Info

Publication number
JPS5623079A
JPS5623079A JP9825079A JP9825079A JPS5623079A JP S5623079 A JPS5623079 A JP S5623079A JP 9825079 A JP9825079 A JP 9825079A JP 9825079 A JP9825079 A JP 9825079A JP S5623079 A JPS5623079 A JP S5623079A
Authority
JP
Japan
Prior art keywords
signals
signal
circuit
sent
decoder
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.)
Granted
Application number
JP9825079A
Other languages
Japanese (ja)
Other versions
JPH0147954B2 (en
Inventor
Hisafumi Yamada
Yoshio Ishigaki
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP9825079A priority Critical patent/JPS5623079A/en
Publication of JPS5623079A publication Critical patent/JPS5623079A/en
Publication of JPH0147954B2 publication Critical patent/JPH0147954B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

Abstract

PURPOSE:To obtain easily two screens via an A/D converter, by producing the simultaneous signal from the sequential signal composed of the luminance and color difference signals and then extracting the three primary color signals. CONSTITUTION:Main signal SA sent from video wave detection circuit 3 is applied to decoder 5 and then demodulated to obtain signals Y, R-Y and B-Y each. These signals are applied to matrix circuit 6 to produce signals RA, GA and BA each which are applied to mixing circuit 18. On the other hand, secondary signal SB sent from video wave detection circuit 9 in the secondary screen signal system is applied to decoder 9 to obtain signals Y, R-Y and B-Y each. These signals are applied to signal processing circuit 12 to receive the signal process. Thus the compressed simultaneous signals of each of Y and R-Y plus Y and B-Y each are extracted every field out of circuit 12 and then applied to matrix circuit 13 to obtain signals RB, GB and BB each. These signals are applied to circuit 18. Then each signal is inserted into the fixed blanking period via the signal sent from control circuit 19. Thus the composite signal is produced.
JP9825079A 1979-08-01 1979-08-01 Television picture receiver Granted JPS5623079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9825079A JPS5623079A (en) 1979-08-01 1979-08-01 Television picture receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9825079A JPS5623079A (en) 1979-08-01 1979-08-01 Television picture receiver

Publications (2)

Publication Number Publication Date
JPS5623079A true JPS5623079A (en) 1981-03-04
JPH0147954B2 JPH0147954B2 (en) 1989-10-17

Family

ID=14214702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9825079A Granted JPS5623079A (en) 1979-08-01 1979-08-01 Television picture receiver

Country Status (1)

Country Link
JP (1) JPS5623079A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62234491A (en) * 1986-03-04 1987-10-14 Nec Home Electronics Ltd Video signal generating circuit for small screen
JPS63164590A (en) * 1986-12-10 1988-07-07 ノキア（ドイチュラント）ゲーエムベーハー Video tape recorder with second video signal path

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62234491A (en) * 1986-03-04 1987-10-14 Nec Home Electronics Ltd Video signal generating circuit for small screen
JPS63164590A (en) * 1986-12-10 1988-07-07 ノキア（ドイチュラント）ゲーエムベーハー Video tape recorder with second video signal path

Also Published As

Publication number Publication date
JPH0147954B2 (en) 1989-10-17

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