JPS5710552A - Cancelling circuit for pilot signal - Google Patents

Cancelling circuit for pilot signal

Info

Publication number
JPS5710552A
JPS5710552A JP8393180A JP8393180A JPS5710552A JP S5710552 A JPS5710552 A JP S5710552A JP 8393180 A JP8393180 A JP 8393180A JP 8393180 A JP8393180 A JP 8393180A JP S5710552 A JPS5710552 A JP S5710552A
Authority
JP
Japan
Prior art keywords
signal
pilot signal
cancellation
circuit
pilot
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
JP8393180A
Other languages
Japanese (ja)
Inventor
Kiyoshi Amasawa
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion 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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP8393180A priority Critical patent/JPS5710552A/en
Publication of JPS5710552A publication Critical patent/JPS5710552A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE:To cancel a pilot signal completely, by automatically matching the cancellation level of the pilot signal, through the feedback of the output signal of the cancellation circuit to a pilot signal synchronizing detection section. CONSTITUTION:An output of a cancellation circuit 14 is fed back to a pilot signal synchronizing detection section 10 to make phase detection by a in-phase signal from a pilot in-phase signal generating section 9, and the cancellation level of the pilot signal can be matched by using the DC component of the detected output. For example, if the output of a cancellation signal generating circuit 13 is deficient, since a pilot signal having the in-phase component with the cancellation signal is included in the feedback signal, or if too much, the pilot signal having the opposite component is included, this is detected as the plus or minus DC component, and the cancellation level is matched by automatically controlling the circuit 13 accordingly.
JP8393180A 1980-06-23 1980-06-23 Cancelling circuit for pilot signal Pending JPS5710552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8393180A JPS5710552A (en) 1980-06-23 1980-06-23 Cancelling circuit for pilot signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8393180A JPS5710552A (en) 1980-06-23 1980-06-23 Cancelling circuit for pilot signal

Publications (1)

Publication Number Publication Date
JPS5710552A true JPS5710552A (en) 1982-01-20

Family

ID=13816337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8393180A Pending JPS5710552A (en) 1980-06-23 1980-06-23 Cancelling circuit for pilot signal

Country Status (1)

Country Link
JP (1) JPS5710552A (en)

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