GB1081240A - Balanced polyphase modulator - Google Patents

Balanced polyphase modulator

Info

Publication number
GB1081240A
GB1081240A GB2479466A GB2479466A GB1081240A GB 1081240 A GB1081240 A GB 1081240A GB 2479466 A GB2479466 A GB 2479466A GB 2479466 A GB2479466 A GB 2479466A GB 1081240 A GB1081240 A GB 1081240A
Authority
GB
United Kingdom
Prior art keywords
switch
phase
modulator
input
output
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.)
Expired
Application number
GB2479466A
Other languages
English (en)
Inventor
Michael John Gingell
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2479466A priority Critical patent/GB1081240A/en
Priority to CH760367A priority patent/CH499236A/de
Priority to FR108840A priority patent/FR94063E/fr
Priority to SE771567A priority patent/SE335557B/xx
Priority to NL6707689A priority patent/NL6707689A/xx
Priority to BE699456D priority patent/BE699456A/xx
Publication of GB1081240A publication Critical patent/GB1081240A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B27/00—Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs
    • 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
    • H03C1/60—Modulators in which carrier or one sideband is wholly or partially suppressed with one sideband wholly or partially suppressed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0066—Mixing
    • H03D2200/0078—Mixing using a switched phase shifter or delay line
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
GB2479466A 1965-12-09 1966-06-03 Balanced polyphase modulator Expired GB1081240A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB2479466A GB1081240A (en) 1966-06-03 1966-06-03 Balanced polyphase modulator
CH760367A CH499236A (de) 1966-06-03 1967-05-30 Frequenzumsetzeranlage
FR108840A FR94063E (fr) 1965-12-09 1967-06-02 Systemes a courants porteurs.
SE771567A SE335557B (enrdf_load_stackoverflow) 1966-06-03 1967-06-02
NL6707689A NL6707689A (enrdf_load_stackoverflow) 1966-06-03 1967-06-02
BE699456D BE699456A (enrdf_load_stackoverflow) 1966-06-03 1967-06-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2479466A GB1081240A (en) 1966-06-03 1966-06-03 Balanced polyphase modulator

Publications (1)

Publication Number Publication Date
GB1081240A true GB1081240A (en) 1967-08-31

Family

ID=10217336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2479466A Expired GB1081240A (en) 1965-12-09 1966-06-03 Balanced polyphase modulator

Country Status (5)

Country Link
BE (1) BE699456A (enrdf_load_stackoverflow)
CH (1) CH499236A (enrdf_load_stackoverflow)
GB (1) GB1081240A (enrdf_load_stackoverflow)
NL (1) NL6707689A (enrdf_load_stackoverflow)
SE (1) SE335557B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL6707689A (enrdf_load_stackoverflow) 1967-12-04
BE699456A (enrdf_load_stackoverflow) 1967-12-05
SE335557B (enrdf_load_stackoverflow) 1971-06-01
CH499236A (de) 1970-11-15

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