JPS5721184A - Voice reception circuit for television receiver - Google Patents

Voice reception circuit for television receiver

Info

Publication number
JPS5721184A
JPS5721184A JP9705180A JP9705180A JPS5721184A JP S5721184 A JPS5721184 A JP S5721184A JP 9705180 A JP9705180 A JP 9705180A JP 9705180 A JP9705180 A JP 9705180A JP S5721184 A JPS5721184 A JP S5721184A
Authority
JP
Japan
Prior art keywords
circuit
voice
output
carrier
amplifying 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.)
Granted
Application number
JP9705180A
Other languages
Japanese (ja)
Other versions
JPH0114753B2 (en
Inventor
Takemitsu Nishimori
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP9705180A priority Critical patent/JPS5721184A/en
Publication of JPS5721184A publication Critical patent/JPS5721184A/en
Publication of JPH0114753B2 publication Critical patent/JPH0114753B2/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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/62—Intercarrier circuits, i.e. heterodyning sound and vision carriers

Landscapes

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

Abstract

PURPOSE:To eliminate the production of buzz tone, by making the gain of an IF amplifying circuit sufficiently and relatively greater, taking the video carrier as the center and making flat the delay characteristics in the frequency range from the voice carrier to the video carrier. CONSTITUTION:The 2nd IF amplifying circuit 6 for voice to which the output of a tuner 1 is applied is applied is provided separately with the 1st IF amplifying circuit 2 for video use, the output of the circuit 6 is in intercarrier detection 7, and the intercarrier signal picked up at a BPF8 from the output is given to a voice demodulation circuit 9. In the circuit 6, the gain within the range of + or -0.75MHz taking the video carrier P as the center is made sufficiently greater relatively so that the delay characteristics can be made flat in the frequency range from the voice carrier to the video carrier P. According to the output of the intercarrier detection circuit 7, AGC is given to the circuit 6. The production of buzz tone due to the slope of the Nyquist and group delay characteristics of the IF amplifying circuit is eliminated.
JP9705180A 1980-07-15 1980-07-15 Voice reception circuit for television receiver Granted JPS5721184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9705180A JPS5721184A (en) 1980-07-15 1980-07-15 Voice reception circuit for television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9705180A JPS5721184A (en) 1980-07-15 1980-07-15 Voice reception circuit for television receiver

Publications (2)

Publication Number Publication Date
JPS5721184A true JPS5721184A (en) 1982-02-03
JPH0114753B2 JPH0114753B2 (en) 1989-03-14

Family

ID=14181856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9705180A Granted JPS5721184A (en) 1980-07-15 1980-07-15 Voice reception circuit for television receiver

Country Status (1)

Country Link
JP (1) JPS5721184A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152873U (en) * 1983-03-31 1984-10-13 日本ビクター株式会社 Audio signal processing circuit for television broadcast signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152873U (en) * 1983-03-31 1984-10-13 日本ビクター株式会社 Audio signal processing circuit for television broadcast signals

Also Published As

Publication number Publication date
JPH0114753B2 (en) 1989-03-14

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