IT964262B - Sistema di comunicazione a fre quenze vettrici - Google Patents

Sistema di comunicazione a fre quenze vettrici

Info

Publication number
IT964262B
IT964262B IT2850572A IT2850572A IT964262B IT 964262 B IT964262 B IT 964262B IT 2850572 A IT2850572 A IT 2850572A IT 2850572 A IT2850572 A IT 2850572A IT 964262 B IT964262 B IT 964262B
Authority
IT
Italy
Prior art keywords
communication system
frequency communication
glass frequency
glass
frequency
Prior art date
Application number
IT2850572A
Other languages
English (en)
Italian (it)
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT964262B publication Critical patent/IT964262B/it

Links

Classifications

    • 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
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • 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
    • 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
    • H03B5/36—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 semiconductor device
    • H03B5/366—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 semiconductor device and comprising means for varying the frequency by a variable voltage or current
    • H03B5/368—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 semiconductor device and comprising means for varying the frequency by a variable voltage or current the means being voltage variable capacitance diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transmitters (AREA)
  • Radio Relay Systems (AREA)
IT2850572A 1971-08-27 1972-08-25 Sistema di comunicazione a fre quenze vettrici IT964262B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712143075 DE2143075C3 (de) 1971-08-27 1971-08-27 Trägerfrequenzsystem

Publications (1)

Publication Number Publication Date
IT964262B true IT964262B (it) 1974-01-21

Family

ID=5818006

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2850572A IT964262B (it) 1971-08-27 1972-08-25 Sistema di comunicazione a fre quenze vettrici

Country Status (8)

Country Link
JP (1) JPS5225205B2 (de)
CH (1) CH551722A (de)
DE (1) DE2143075C3 (de)
FR (1) FR2151917A5 (de)
GB (1) GB1396135A (de)
IT (1) IT964262B (de)
NL (1) NL170908C (de)
SE (1) SE386791B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038123B2 (de) * 1972-06-01 1975-12-08
JPS50140008A (de) * 1974-04-26 1975-11-10
US10998909B1 (en) 2019-09-12 2021-05-04 Dialog Semiconductor B.V. Sensing device comprising a phase locked loop circuit

Also Published As

Publication number Publication date
GB1396135A (en) 1975-06-04
NL170908B (nl) 1982-08-02
SE386791B (sv) 1976-08-16
FR2151917A5 (de) 1973-04-20
DE2143075C3 (de) 1974-07-11
NL7211605A (de) 1973-03-01
JPS5225205B2 (de) 1977-07-06
NL170908C (nl) 1983-01-03
DE2143075A1 (de) 1973-03-01
JPS4835709A (de) 1973-05-26
CH551722A (de) 1974-07-15
DE2143075B2 (de) 1973-12-13

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