FR2370386A1 - MIXER FOR MULTIFREQUENCY SIGNAL RECEIVER - Google Patents

MIXER FOR MULTIFREQUENCY SIGNAL RECEIVER

Info

Publication number
FR2370386A1
FR2370386A1 FR7633463A FR7633463A FR2370386A1 FR 2370386 A1 FR2370386 A1 FR 2370386A1 FR 7633463 A FR7633463 A FR 7633463A FR 7633463 A FR7633463 A FR 7633463A FR 2370386 A1 FR2370386 A1 FR 2370386A1
Authority
FR
France
Prior art keywords
signal
mixer
frequency
signal receiver
retransmitting
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.)
Granted
Application number
FR7633463A
Other languages
French (fr)
Other versions
FR2370386B1 (en
Inventor
Xavier Chaveron
Pierre Boiteux
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.)
Constr Telephoniques
Original Assignee
Constr Telephoniques
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 Constr Telephoniques filed Critical Constr Telephoniques
Priority to FR7633463A priority Critical patent/FR2370386A1/en
Priority to GB4431477A priority patent/GB1534208A/en
Publication of FR2370386A1 publication Critical patent/FR2370386A1/en
Application granted granted Critical
Publication of FR2370386B1 publication Critical patent/FR2370386B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

L'invention concerne un mélangeur pour récepteur de signaux multifréquences. Le mélangeur de l'invention comprend notamment un premier commutateur Cr1 commande par un signal RA1 de fréquence fo et retransmettant alternativement le signal entrant EA et son inverse à un circuit de redressement double alternance RD1 via un filtre passe-bas PB1, un deuxième commutateur CT2 commandé par un signal RA2 de fréquence fo, déphasé d'un quart de période par rapport au signal RA1 et retransmettant le signal entrant EA et son inverse à un circuit de redressement double alternance RD2 via un filtre passe-bas PB2, et un circuit de sommation NB dont les entrées sont connectées respectivement aux sorties des redresseurs RDI et RD2. L'invention s'applique dans les récepteurs de signaux multifréquences.The invention relates to a mixer for a receiver of multi-frequency signals. The mixer of the invention comprises in particular a first switch Cr1 controlled by a signal RA1 of frequency fo and alternately retransmitting the incoming signal EA and its inverse to a full-wave rectifier circuit RD1 via a low-pass filter PB1, a second switch CT2 controlled by a signal RA2 of frequency fo, phase shifted by a quarter of a period with respect to the signal RA1 and retransmitting the incoming signal EA and its inverse to a full-wave rectifier circuit RD2 via a low-pass filter PB2, and a control circuit summation NB whose inputs are connected respectively to the outputs of the rectifiers RDI and RD2. The invention is applicable in multi-frequency signal receivers.

FR7633463A 1976-11-05 1976-11-05 MIXER FOR MULTIFREQUENCY SIGNAL RECEIVER Granted FR2370386A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7633463A FR2370386A1 (en) 1976-11-05 1976-11-05 MIXER FOR MULTIFREQUENCY SIGNAL RECEIVER
GB4431477A GB1534208A (en) 1976-11-05 1977-10-25 Detector for a multifrequency signal receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7633463A FR2370386A1 (en) 1976-11-05 1976-11-05 MIXER FOR MULTIFREQUENCY SIGNAL RECEIVER

Publications (2)

Publication Number Publication Date
FR2370386A1 true FR2370386A1 (en) 1978-06-02
FR2370386B1 FR2370386B1 (en) 1982-09-24

Family

ID=9179600

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633463A Granted FR2370386A1 (en) 1976-11-05 1976-11-05 MIXER FOR MULTIFREQUENCY SIGNAL RECEIVER

Country Status (2)

Country Link
FR (1) FR2370386A1 (en)
GB (1) GB1534208A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1420538A (en) * 1964-10-28 1965-12-10 Ericsson Telefon Sfe Fse Method and device for detecting frequency signals
FR2118090A1 (en) * 1970-12-18 1972-07-28 Ibm
FR2269261A1 (en) * 1974-04-24 1975-11-21 Cit Alcatel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1420538A (en) * 1964-10-28 1965-12-10 Ericsson Telefon Sfe Fse Method and device for detecting frequency signals
FR2118090A1 (en) * 1970-12-18 1972-07-28 Ibm
FR2269261A1 (en) * 1974-04-24 1975-11-21 Cit Alcatel

Also Published As

Publication number Publication date
GB1534208A (en) 1978-11-29
FR2370386B1 (en) 1982-09-24

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Legal Events

Date Code Title Description
TP Transmission of property