JPS5648800A - Level display unit for stereophonic audio signal - Google Patents

Level display unit for stereophonic audio signal

Info

Publication number
JPS5648800A
JPS5648800A JP12545779A JP12545779A JPS5648800A JP S5648800 A JPS5648800 A JP S5648800A JP 12545779 A JP12545779 A JP 12545779A JP 12545779 A JP12545779 A JP 12545779A JP S5648800 A JPS5648800 A JP S5648800A
Authority
JP
Japan
Prior art keywords
pulse
receiver
supplied
audio signal
stereophonic audio
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
JP12545779A
Other languages
Japanese (ja)
Inventor
Kenjiro Endo
Masatoshi Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12545779A priority Critical patent/JPS5648800A/en
Publication of JPS5648800A publication Critical patent/JPS5648800A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/40—Visual indication of stereophonic sound image

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

PURPOSE:To make it possible to display right and left levels of a stereophonic audio signal on the screen of a TV receiver with good response, by making use of the TV receiver. CONSTITUTION:Either of right and left channel signals detected by level detectors 1 and 2 is supplied to comparator 4, and the other is polarity-inverted 3 and supplied to comparator 5. Comparators 4 and 5 are supplied with saw-tooth waves synchronizing with a horizontal scan and, when both the inputs agree mutually, generate pulses. From FF7 supplied with both the pulses as a reset pulse and set pulse, rectangular pulse train Y''1 is obtained which has the leading edge determined by one pulse and the trailing edge by the other pulse. This pulse signal is inputted to receiver 10 via vertical positioning gate 8 to provide amplitude modulation of a luminance signal. Thus, bright lines that correspond to right and left levels can be displayed on the screen of receiver 10 with good response.
JP12545779A 1979-09-29 1979-09-29 Level display unit for stereophonic audio signal Pending JPS5648800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12545779A JPS5648800A (en) 1979-09-29 1979-09-29 Level display unit for stereophonic audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12545779A JPS5648800A (en) 1979-09-29 1979-09-29 Level display unit for stereophonic audio signal

Publications (1)

Publication Number Publication Date
JPS5648800A true JPS5648800A (en) 1981-05-02

Family

ID=14910564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12545779A Pending JPS5648800A (en) 1979-09-29 1979-09-29 Level display unit for stereophonic audio signal

Country Status (1)

Country Link
JP (1) JPS5648800A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839963A (en) * 1981-09-03 1983-03-08 Victor Co Of Japan Ltd Spectrum display device of plural channel signals
JPS62197076U (en) * 1987-05-28 1987-12-15
JPS63109664U (en) * 1987-01-09 1988-07-14

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839963A (en) * 1981-09-03 1983-03-08 Victor Co Of Japan Ltd Spectrum display device of plural channel signals
JPS63109664U (en) * 1987-01-09 1988-07-14
JPS62197076U (en) * 1987-05-28 1987-12-15

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