JPS55136773A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPS55136773A
JPS55136773A JP4481079A JP4481079A JPS55136773A JP S55136773 A JPS55136773 A JP S55136773A JP 4481079 A JP4481079 A JP 4481079A JP 4481079 A JP4481079 A JP 4481079A JP S55136773 A JPS55136773 A JP S55136773A
Authority
JP
Japan
Prior art keywords
frequency
filter
slope
buzz
circuit
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
JP4481079A
Other languages
Japanese (ja)
Inventor
Toshiaki Meguro
Masumi Ogawa
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 JP4481079A priority Critical patent/JPS55136773A/en
Publication of JPS55136773A publication Critical patent/JPS55136773A/en
Pending 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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages

Landscapes

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

Abstract

PURPOSE:To reduce the buzz interference by adopting the frequency characteristics at the input state of the intercarrier detection circuit as those not causing phase modulation, in the TV receiver of intercarrier system which can receive audio multiplex broadcast. CONSTITUTION:The intermediate frequency output via the tuner 1, input filter 2 and video intermediate frequency amplifying circuit 3 is fed to the audio trap circuit 4 and the correction filter 8. The frequency characteristics B of the filter 8 is selected higher than the video intermediate frequency fp at the resonance frequency fo, and the slope is selected as opposite slope alpha than the slope -alpha which is the normal Nyquist strobe given to the IF characteristics of the input filter 2 at the specified band DELTAf taking the frequency fp. When DELTAf is taken double or more the horizontal synchronizing signal frequency fH, and when the output signal of the correction filter 8 is made for intercarrier detection via the tuning circuit 9 to the audio carrier, the phase shift of the video carrier is cancelled and phase modulation component is avoided, the equivalent FM component is zeroed to avoid the production of buzz, thereby remarkably improving the buzz interference to the sub-channel.
JP4481079A 1979-04-12 1979-04-12 Television receiver Pending JPS55136773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4481079A JPS55136773A (en) 1979-04-12 1979-04-12 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4481079A JPS55136773A (en) 1979-04-12 1979-04-12 Television receiver

Publications (1)

Publication Number Publication Date
JPS55136773A true JPS55136773A (en) 1980-10-24

Family

ID=12701775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4481079A Pending JPS55136773A (en) 1979-04-12 1979-04-12 Television receiver

Country Status (1)

Country Link
JP (1) JPS55136773A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819084A (en) * 1981-07-26 1983-02-03 Matsushita Electric Ind Co Ltd Television sound receiver
US5018016A (en) * 1988-06-20 1991-05-21 Sanyo Electric Co., Ltd. Detecting circuit which reduces buzz in a sound signal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819084A (en) * 1981-07-26 1983-02-03 Matsushita Electric Ind Co Ltd Television sound receiver
JPS6365196B2 (en) * 1981-07-26 1988-12-14
US5018016A (en) * 1988-06-20 1991-05-21 Sanyo Electric Co., Ltd. Detecting circuit which reduces buzz in a sound signal

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