JPS56166652A - Amplitude modulator - Google Patents

Amplitude modulator

Info

Publication number
JPS56166652A
JPS56166652A JP6992380A JP6992380A JPS56166652A JP S56166652 A JPS56166652 A JP S56166652A JP 6992380 A JP6992380 A JP 6992380A JP 6992380 A JP6992380 A JP 6992380A JP S56166652 A JPS56166652 A JP S56166652A
Authority
JP
Japan
Prior art keywords
signal
frequency
carrier signal
angle
angle modulation
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
JP6992380A
Other languages
Japanese (ja)
Other versions
JPS636180B2 (en
Inventor
Hiroshi Ono
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6992380A priority Critical patent/JPS56166652A/en
Publication of JPS56166652A publication Critical patent/JPS56166652A/en
Publication of JPS636180B2 publication Critical patent/JPS636180B2/ja
Granted 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
    • 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
    • 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

Landscapes

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

Abstract

PURPOSE:To suppress the occurrence of spuriousness by performing angle modulation without deteriorating characteristics, such as linearity, by performing the angle modulation of a signal higher in frequency than a normal carrier signal and by mixing this signal and a lower-frequency signal together. CONSTITUTION:The output of a quartz oscillator 31 outputting a carrier signal f1 higher in frequency than a normal carrier signal is supplied to a stereo adaptor 12 together with audio signals of channels R and L. This adapter 12 outputs an angle- modulated carrier signal Vc(t) and a synthesized sound signal Ve(t). The output of an oscillator 32 for a signal f2 lower in frequency than the signal f1 is inputted to a mixer 33 together with the angle-modulated carrier signal to generate a normal carrier signal f0. Consequently, since the frequency is high, angle modulation is performed without deteriorating characteristics, such as linearity, and two signals inptted to a power amplifier 24 synchronized with each other, so the occurrence of spuriousness is suppressed.
JP6992380A 1980-05-26 1980-05-26 Amplitude modulator Granted JPS56166652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6992380A JPS56166652A (en) 1980-05-26 1980-05-26 Amplitude modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6992380A JPS56166652A (en) 1980-05-26 1980-05-26 Amplitude modulator

Publications (2)

Publication Number Publication Date
JPS56166652A true JPS56166652A (en) 1981-12-21
JPS636180B2 JPS636180B2 (en) 1988-02-08

Family

ID=13416685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6992380A Granted JPS56166652A (en) 1980-05-26 1980-05-26 Amplitude modulator

Country Status (1)

Country Link
JP (1) JPS56166652A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02134153A (en) * 1988-11-15 1990-05-23 Noritz Corp Jet device for bubble bath

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02134153A (en) * 1988-11-15 1990-05-23 Noritz Corp Jet device for bubble bath
JPH0314465B2 (en) * 1988-11-15 1991-02-26 Noritsu Kk

Also Published As

Publication number Publication date
JPS636180B2 (en) 1988-02-08

Similar Documents

Publication Publication Date Title
ES202426A1 (en) A transmission system for stereo-phone signals, and transmitters and receivers for use in such systems (Machine-translation by Google Translate, not legally binding)
MY112795A (en) Signal combining circuit, signal processing circuit including the signal combining circuit,stereophonic audio reproduction system including the signal processing circuit, and an audio-visual reproduction system including the stereophonic audio reproduction system
US4008641A (en) Device for modulating a musical tone signal to produce a rotating sound effect
EP0122663A3 (en) Method and system for improving speaker performance
GB946707A (en) Improvements in stereophonic broadcasting system
GB540185A (en) System of transmission of electrical waves
CA2191813A1 (en) Radio navigation testing method and device using standard signal measuring and generating equipment
GB1406377A (en) Electronic musical instrument
JPS56166652A (en) Amplitude modulator
US3139487A (en) Bandwidth reduction system
DE3261803D1 (en) Split phase stereophonic sound synthesizer
GB1427607A (en) Audio signal transmitting systems
GB1519574A (en) Quadraphse modulator
US3087989A (en) Vowel synthesizer
JPS54112152A (en) Frequency divider
JPS5441102A (en) Signal converting circuit
GB1475648A (en) Narrow band-width compatable single sideband -cssb-transmission system and three tone generator used therein
GB947306A (en) Improvements in and relating to signal modulating apparatus
GB929025A (en) Improvements in or relating to signal transmission systems
ES450342A1 (en) High power low loss nonresonant filter system
US3729679A (en) Suppressed carrier single-sideband signal detection
JPS5441103A (en) Signal converting circuit
US3120580A (en) Stereo signal generator
GB1391289A (en) Four channel stereophonic system
JPS5459004A (en) Fm stereo modulating system