GB790807A - Improvements in or relating to stabilized high-frequency multi-channel generators - Google Patents

Improvements in or relating to stabilized high-frequency multi-channel generators

Info

Publication number
GB790807A
GB790807A GB35596/55A GB3559655A GB790807A GB 790807 A GB790807 A GB 790807A GB 35596/55 A GB35596/55 A GB 35596/55A GB 3559655 A GB3559655 A GB 3559655A GB 790807 A GB790807 A GB 790807A
Authority
GB
United Kingdom
Prior art keywords
frequency
oscillator
auxiliary
oscillators
main
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
GB35596/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB790807A publication Critical patent/GB790807A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
GB35596/55A 1954-12-14 1955-12-12 Improvements in or relating to stabilized high-frequency multi-channel generators Expired GB790807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL336457X 1954-12-14

Publications (1)

Publication Number Publication Date
GB790807A true GB790807A (en) 1958-02-19

Family

ID=19784556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35596/55A Expired GB790807A (en) 1954-12-14 1955-12-12 Improvements in or relating to stabilized high-frequency multi-channel generators

Country Status (6)

Country Link
BE (1) BE543623A (enrdf_load_stackoverflow)
CH (1) CH336457A (enrdf_load_stackoverflow)
DE (1) DE1011003B (enrdf_load_stackoverflow)
FR (1) FR1145233A (enrdf_load_stackoverflow)
GB (1) GB790807A (enrdf_load_stackoverflow)
NL (1) NL87547C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155919A (en) * 1961-01-03 1964-11-03 Collins Radio Co A. f. c. spectrum lock-in circuit
US4322692A (en) 1979-03-06 1982-03-30 Racal-Dana Instruments Limited Microprocessor-controlled frequency synthesizer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564139A (enrdf_load_stackoverflow) * 1957-01-21
US3005959A (en) 1959-08-25 1961-10-24 Avco Corp Signal generator system
FR2497425B1 (fr) * 1980-12-31 1985-10-31 Adret Electronique Synthetiseur de frequence a multiplicateur fractionnaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155919A (en) * 1961-01-03 1964-11-03 Collins Radio Co A. f. c. spectrum lock-in circuit
US4322692A (en) 1979-03-06 1982-03-30 Racal-Dana Instruments Limited Microprocessor-controlled frequency synthesizer
US4422053A (en) 1979-03-06 1983-12-20 Racal-Dana Instruments Limited Frequency modulator including frequency synthesizer

Also Published As

Publication number Publication date
DE1011003B (de) 1957-06-27
CH336457A (de) 1959-02-28
BE543623A (enrdf_load_stackoverflow)
FR1145233A (fr) 1957-10-23
NL87547C (enrdf_load_stackoverflow)

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