JPS5642404A - Balanced modulator - Google Patents

Balanced modulator

Info

Publication number
JPS5642404A
JPS5642404A JP11765779A JP11765779A JPS5642404A JP S5642404 A JPS5642404 A JP S5642404A JP 11765779 A JP11765779 A JP 11765779A JP 11765779 A JP11765779 A JP 11765779A JP S5642404 A JPS5642404 A JP S5642404A
Authority
JP
Japan
Prior art keywords
circuit
walsh function
carrier
terminal
multiplying
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
JP11765779A
Other languages
Japanese (ja)
Other versions
JPS6133402B2 (en
Inventor
Takanori Seki
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.)
Ando Electric Co Ltd
Original Assignee
Ando 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 Ando Electric Co Ltd filed Critical Ando Electric Co Ltd
Priority to JP11765779A priority Critical patent/JPS5642404A/en
Publication of JPS5642404A publication Critical patent/JPS5642404A/en
Publication of JPS6133402B2 publication Critical patent/JPS6133402B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type

Landscapes

  • Amplitude Modulation (AREA)

Abstract

PURPOSE:To reduce the generation of higher harmonics by weighting respective modulated signals branched, by multiplying the outputs by function waves for the carrier synthesizing of a Walsh function generating circuit at corresponding multiplying circuits respectively, and by constituting a balanced modulating circuit by a digital circuit. CONSTITUTION:To terminal part 15 of Walsh function generating circuit 16, a clock signal of a frequency eight times as high as that of a carrier is applied and its multiple is determined by the degree of generating circuit 16 to generate a Walsh function by generating circuit 16. Further, a modulated signal is applied to terminal 11 and after having its amplitude weighted fixedly by resistances R3 and R4, is applied to multiplying circuit 5, whose output polarity-inverted and weighted fixedly by inverting amplifier 12 and resistances R5 and R6 is applied to multiplying circuit 6. Then, circuit 5 and 6 multiply the modulated signal from terminal 11 by the Walsh function as the base of the carrier and their outputs are added together by resistances R1 and R2 and amplifier 7, so that the carrier modulated by Walsh function will be outputted from terminal 9.
JP11765779A 1979-09-13 1979-09-13 Balanced modulator Granted JPS5642404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11765779A JPS5642404A (en) 1979-09-13 1979-09-13 Balanced modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11765779A JPS5642404A (en) 1979-09-13 1979-09-13 Balanced modulator

Publications (2)

Publication Number Publication Date
JPS5642404A true JPS5642404A (en) 1981-04-20
JPS6133402B2 JPS6133402B2 (en) 1986-08-01

Family

ID=14717071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11765779A Granted JPS5642404A (en) 1979-09-13 1979-09-13 Balanced modulator

Country Status (1)

Country Link
JP (1) JPS5642404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0388617U (en) * 1989-12-25 1991-09-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0388617U (en) * 1989-12-25 1991-09-10
JP2533759Y2 (en) * 1989-12-25 1997-04-23 相生精機株式会社 Milling equipment

Also Published As

Publication number Publication date
JPS6133402B2 (en) 1986-08-01

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