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JPS54107660A - Amplitude modulation circuit - Google Patents

Amplitude modulation circuit

Info

Publication number
JPS54107660A
JPS54107660A JP1471478A JP1471478A JPS54107660A JP S54107660 A JPS54107660 A JP S54107660A JP 1471478 A JP1471478 A JP 1471478A JP 1471478 A JP1471478 A JP 1471478A JP S54107660 A JPS54107660 A JP S54107660A
Authority
JP
Japan
Prior art keywords
carrier
circuit
inputted
modulation
terminal
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
JP1471478A
Other languages
Japanese (ja)
Other versions
JPS6126728B2 (en
Inventor
Fusao Ushio
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1471478A priority Critical patent/JPS54107660A/en
Publication of JPS54107660A publication Critical patent/JPS54107660A/en
Publication of JPS6126728B2 publication Critical patent/JPS6126728B2/ja
Granted legal-status Critical Current

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  • Amplitude Modulation (AREA)

Abstract

PURPOSE: To offer the modulation circuit effective even if the carrier frequency is close to the modulated frequency, by performing amplitude modulation with comparatively simple constitution.
CONSTITUTION: The modulation signal is inputted at the terminal d and it is inputted to the variable passing circuit 5. Further, a part of the input signal to the terminal d is inverted for the polarity with the inversion amplifying circuit 4 and inputted to the variable passing circuit 5. Moreover, carrier is inputted to the terminal e. The variable passing circuit 5 passed through carrier by taking a voltage V0 as the center, and if the carrier is at a level exceeding the voltage V1 apart toward positive direction than V0, no carrier is passed thorugh. If the carrier is a level exceeding a given voltage V2 apart toward negative direction than V0, no carrier can be passed. V1 and V2 are varied while keeping the relation of opposite phase with the modulation signal. The signal amplitude-modulation can be obtained with the output of the circuit 5 from the band pass circuit 6.
COPYRIGHT: (C)1979,JPO&Japio
JP1471478A 1978-02-10 1978-02-10 Amplitude modulation circuit Granted JPS54107660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1471478A JPS54107660A (en) 1978-02-10 1978-02-10 Amplitude modulation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1471478A JPS54107660A (en) 1978-02-10 1978-02-10 Amplitude modulation circuit

Publications (2)

Publication Number Publication Date
JPS54107660A true JPS54107660A (en) 1979-08-23
JPS6126728B2 JPS6126728B2 (en) 1986-06-21

Family

ID=11868806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1471478A Granted JPS54107660A (en) 1978-02-10 1978-02-10 Amplitude modulation circuit

Country Status (1)

Country Link
JP (1) JPS54107660A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189756A (en) * 1983-04-11 1984-10-27 Sony Corp Digital am modulating circuit
JPS6090912U (en) * 1983-11-25 1985-06-21 株式会社村田製作所 amplitude modulation circuit
JPS60209697A (en) * 1984-04-02 1985-10-22 Hitachi Ltd Axial-flow impeller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189756A (en) * 1983-04-11 1984-10-27 Sony Corp Digital am modulating circuit
JPS6090912U (en) * 1983-11-25 1985-06-21 株式会社村田製作所 amplitude modulation circuit
JPS60209697A (en) * 1984-04-02 1985-10-22 Hitachi Ltd Axial-flow impeller

Also Published As

Publication number Publication date
JPS6126728B2 (en) 1986-06-21

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