DE931606C - Sender-Empfaenger mit Schwingkristallen - Google Patents

Sender-Empfaenger mit Schwingkristallen

Info

Publication number
DE931606C
DE931606C DEA19631A DEA0019631A DE931606C DE 931606 C DE931606 C DE 931606C DE A19631 A DEA19631 A DE A19631A DE A0019631 A DEA0019631 A DE A0019631A DE 931606 C DE931606 C DE 931606C
Authority
DE
Germany
Prior art keywords
frequency
crystal
receiver
crystals
transmitter
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
DEA19631A
Other languages
German (de)
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.)
Autophon AG
Original Assignee
Autophon 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 Autophon AG filed Critical Autophon AG
Application granted granted Critical
Publication of DE931606C publication Critical patent/DE931606C/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • 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
    • H04B1/54—Circuits using the same frequency for two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
DEA19631A 1953-02-27 1954-02-05 Sender-Empfaenger mit Schwingkristallen Expired DE931606C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1093839X 1953-02-27

Publications (1)

Publication Number Publication Date
DE931606C true DE931606C (de) 1955-08-11

Family

ID=4557135

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA19631A Expired DE931606C (de) 1953-02-27 1954-02-05 Sender-Empfaenger mit Schwingkristallen

Country Status (4)

Country Link
BE (1) BE526635A (enrdf_load_stackoverflow)
CH (1) CH310664A (enrdf_load_stackoverflow)
DE (1) DE931606C (enrdf_load_stackoverflow)
FR (1) FR1093839A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE526635A (enrdf_load_stackoverflow)
CH310664A (de) 1955-10-31
FR1093839A (fr) 1955-05-10

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