CH349306A - High frequency generator - Google Patents

High frequency generator

Info

Publication number
CH349306A
CH349306A CH349306DA CH349306A CH 349306 A CH349306 A CH 349306A CH 349306D A CH349306D A CH 349306DA CH 349306 A CH349306 A CH 349306A
Authority
CH
Switzerland
Prior art keywords
high frequency
frequency generator
generator
frequency
Prior art date
Application number
Other languages
German (de)
Inventor
Marriott Dodington Sven Henry
Original Assignee
Standard Telephon & Radio Ag
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 Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH349306A publication Critical patent/CH349306A/en

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • 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
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
    • 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
    • H04B1/50—Circuits using different frequencies for the two directions of communication
CH349306D 1955-08-18 1956-08-14 High frequency generator CH349306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US529111A US2790079A (en) 1955-08-18 1955-08-18 Multi-channel radio equipment

Publications (1)

Publication Number Publication Date
CH349306A true CH349306A (en) 1960-10-15

Family

ID=24108571

Family Applications (1)

Application Number Title Priority Date Filing Date
CH349306D CH349306A (en) 1955-08-18 1956-08-14 High frequency generator

Country Status (5)

Country Link
US (1) US2790079A (en)
BE (1) BE552807A (en)
CH (1) CH349306A (en)
DE (1) DE1028626B (en)
GB (1) GB797920A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881321A (en) * 1957-08-30 1959-04-07 Walter J Dauksher Variable frequency crystal controlled oscillator
US3296549A (en) * 1962-11-29 1967-01-03 Einar C Johnson Parallel capacitor controlled variable frequency oscillator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1727575A (en) * 1927-02-15 1929-09-10 Wired Radio Inc Frequency-control system
DE501615C (en) * 1928-09-10 1930-07-05 Telefunken Gmbh Process for the production of a carrier wave with variable wavelength in crystal-controlled shortwave transmitters and receiving systems
US2501591A (en) * 1945-08-27 1950-03-21 Premier Crystal Lab Inc Multiband superheterodyne radio receiver having a push-button station selector
US2487857A (en) * 1945-11-21 1949-11-15 Collins Radio Co Channelized high-frequency signal receiving system
US2555390A (en) * 1946-02-18 1951-06-05 Arthur A Glass Audiometer

Also Published As

Publication number Publication date
GB797920A (en) 1958-07-09
DE1028626B (en) 1958-04-24
BE552807A (en)
US2790079A (en) 1957-04-23

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