JPS56107649A - Amplitude modulation receiver - Google Patents

Amplitude modulation receiver

Info

Publication number
JPS56107649A
JPS56107649A JP1066880A JP1066880A JPS56107649A JP S56107649 A JPS56107649 A JP S56107649A JP 1066880 A JP1066880 A JP 1066880A JP 1066880 A JP1066880 A JP 1066880A JP S56107649 A JPS56107649 A JP S56107649A
Authority
JP
Japan
Prior art keywords
pass filter
detection signal
lower wave
signal
wave
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
JP1066880A
Other languages
Japanese (ja)
Other versions
JPS6231862B2 (en
Inventor
Norio Numata
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 JP1066880A priority Critical patent/JPS56107649A/en
Publication of JPS56107649A publication Critical patent/JPS56107649A/en
Publication of JPS6231862B2 publication Critical patent/JPS6231862B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/24—Homodyne or synchrodyne circuits for demodulation of signals wherein one sideband or the carrier has been wholly or partially suppressed

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)

Abstract

PURPOSE:To execute the demodulation by means of a simple constitution, by freely selecting the lower wave detection signal or the upper wave detection signal from th series circuit of the lower wave band-pass filter and the upper wave band-pass filter, by use of the changing switches. CONSTITUTION:When obtaining the lower wave detection signal, the changing switches 26, 28, 27, 29 are connected to the lower wave fixed contacts 26L, 28L, 27L, 29L. In this case, the output of the lower wave band-pass filter 19 is the sum of the carrier signal and the lower wave signal, it is multiplied by the carrier signal which has removed the lower wave signal being an output of the upper wave band- pass filter 20, by the multiplying circuit 32, therefore as for the output of the low- pass filter 33, the lower wave detection signal is obtained, and it is reproduced by the speaker 18. When obtaining the upper wave detection signal, the changing switches 26, 28, 27, 29 are connected to the upper wave fixed contacts 26U, 28U, 27U, 29U, respectively.
JP1066880A 1980-01-31 1980-01-31 Amplitude modulation receiver Granted JPS56107649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1066880A JPS56107649A (en) 1980-01-31 1980-01-31 Amplitude modulation receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1066880A JPS56107649A (en) 1980-01-31 1980-01-31 Amplitude modulation receiver

Publications (2)

Publication Number Publication Date
JPS56107649A true JPS56107649A (en) 1981-08-26
JPS6231862B2 JPS6231862B2 (en) 1987-07-10

Family

ID=11756616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1066880A Granted JPS56107649A (en) 1980-01-31 1980-01-31 Amplitude modulation receiver

Country Status (1)

Country Link
JP (1) JPS56107649A (en)

Also Published As

Publication number Publication date
JPS6231862B2 (en) 1987-07-10

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