GB776109A - Modulation systems with means for reducing distortion introduced by amplifiers - Google Patents

Modulation systems with means for reducing distortion introduced by amplifiers

Info

Publication number
GB776109A
GB776109A GB20529/55A GB2052955A GB776109A GB 776109 A GB776109 A GB 776109A GB 20529/55 A GB20529/55 A GB 20529/55A GB 2052955 A GB2052955 A GB 2052955A GB 776109 A GB776109 A GB 776109A
Authority
GB
United Kingdom
Prior art keywords
amplifier
oscillators
oscillator
july
modulators
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
GB20529/55A
Other languages
English (en)
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
Publication of GB776109A publication Critical patent/GB776109A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/12—Arrangements for reducing cross-talk between channels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/02—Details
    • H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/581—Multiple crystal filters comprising ceramic piezoelectric layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Transmitters (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Compositions Of Oxide Ceramics (AREA)
GB20529/55A 1954-07-19 1955-07-15 Modulation systems with means for reducing distortion introduced by amplifiers Expired GB776109A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US776109XA 1954-07-19 1954-07-19
US867038XA 1957-01-08 1957-01-08

Publications (1)

Publication Number Publication Date
GB776109A true GB776109A (en) 1957-06-05

Family

ID=26759472

Family Applications (2)

Application Number Title Priority Date Filing Date
GB20529/55A Expired GB776109A (en) 1954-07-19 1955-07-15 Modulation systems with means for reducing distortion introduced by amplifiers
GB656/58A Expired GB867038A (en) 1954-07-19 1958-01-07 Electromechanical filter elements

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB656/58A Expired GB867038A (en) 1954-07-19 1958-01-07 Electromechanical filter elements

Country Status (2)

Country Link
BE (1) BE539919A (cs)
GB (2) GB776109A (cs)

Also Published As

Publication number Publication date
BE539919A (cs)
GB867038A (en) 1961-05-03

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