JPS5580971A - Identifying device for multiple sound broadcast pilot signal - Google Patents

Identifying device for multiple sound broadcast pilot signal

Info

Publication number
JPS5580971A
JPS5580971A JP10787579A JP10787579A JPS5580971A JP S5580971 A JPS5580971 A JP S5580971A JP 10787579 A JP10787579 A JP 10787579A JP 10787579 A JP10787579 A JP 10787579A JP S5580971 A JPS5580971 A JP S5580971A
Authority
JP
Japan
Prior art keywords
circuit
voltage
output
multiple sound
control
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
JP10787579A
Other languages
Japanese (ja)
Other versions
JPS6057268B2 (en
Inventor
Koichi Ryu
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP54107875A priority Critical patent/JPS6057268B2/en
Publication of JPS5580971A publication Critical patent/JPS5580971A/en
Publication of JPS6057268B2 publication Critical patent/JPS6057268B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • 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)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Television Receiver Circuits (AREA)

Abstract

PURPOSE:To prevent the malfunction caused by the shock noise of vibrations or impact by using the PLL circuit to the circuit which controls the multiple demodulator circuit in the TV multiple sound broadcast receiver. CONSTITUTION:The AM-modulated control signal of the TV multiple sound undergoes the AM detection as the pilot signal. After passing through buffer 2, one of the pilot signals is supplied to PLL circuit 10 and then compared at comparator circuit 11 with the output signal of divider circuit 12 in terms of the phase and the frequency. This output becomes the control voltage of VCO14 after passing through LPF13, and the output of VCO14 is divided and supplied to circuit 11 for the control given to the phase and the frequency. Output voltage V of LPF13 is compared with reference voltage VR at voltage comparator 15. Voltage VR corresponds to the intermediate frequency between two frequencies of the control signal and is turned to the stereo and bilingual control signals in accordance with the high and low output of comparator 15, and the signals sent from input signal detector circuit 20 are delivered through gates 16 and 18.
JP54107875A 1979-08-23 1979-08-23 Audio multiplex broadcast pilot signal identification device Expired JPS6057268B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54107875A JPS6057268B2 (en) 1979-08-23 1979-08-23 Audio multiplex broadcast pilot signal identification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54107875A JPS6057268B2 (en) 1979-08-23 1979-08-23 Audio multiplex broadcast pilot signal identification device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP15709678A Division JPS5580970A (en) 1978-12-14 1978-12-14 Signal discriminator circuit

Publications (2)

Publication Number Publication Date
JPS5580971A true JPS5580971A (en) 1980-06-18
JPS6057268B2 JPS6057268B2 (en) 1985-12-13

Family

ID=14470296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54107875A Expired JPS6057268B2 (en) 1979-08-23 1979-08-23 Audio multiplex broadcast pilot signal identification device

Country Status (1)

Country Link
JP (1) JPS6057268B2 (en)

Also Published As

Publication number Publication date
JPS6057268B2 (en) 1985-12-13

Similar Documents

Publication Publication Date Title
GB1330926A (en) Stereophonic receiver
US3995220A (en) Interference pulse suppression circuit for radio receivers
JPS53118927A (en) Video detecting unit
JPS5580970A (en) Signal discriminator circuit
GB1466288A (en) Discrimination circuit arrangements
GB1090885A (en) Multifrequency signal receiver circuit
ES448790A1 (en) Improvements in systems to prevent perturbing impacts of parasite signals on television receivers. (Machine-translation by Google Translate, not legally binding)
JPS55151874A (en) Television sound multiple broadcast receiver
JPS55156483A (en) Signal discriminating circuit
JPS55161475A (en) Squelch circuit of television receiver
KR840004998A (en) AM stereo receiver
JPS5753185A (en) Detection circuit for television broadcast signal
GB678716A (en) Improvements in television receivers
JPS6211085Y2 (en)
JPS5467309A (en) Aft circuit
ES332568A1 (en) A noise eliminating circuit for a television receiver. (Machine-translation by Google Translate, not legally binding)
JPS5237705A (en) Tuner unit of television receiver
JPS5720047A (en) Am stereophonic receiver
JPS5578681A (en) Receiver
JPS57185776A (en) System discriminating device for television signal
GB811451A (en) Improvements in or relating to television receivers
JPS55150625A (en) Radio interference detecting system for fm sound broadcasting and communication
JPS54141520A (en) Noise rejection circuit in tv receiver of horizontal frequency changeover system
GB848367A (en) Improvements in or relating to television receiver circuits
JPS57121377A (en) Video intermediate frequency circuit for television receiver