FR2202398B1 - - Google Patents

Info

Publication number
FR2202398B1
FR2202398B1 FR7334322A FR7334322A FR2202398B1 FR 2202398 B1 FR2202398 B1 FR 2202398B1 FR 7334322 A FR7334322 A FR 7334322A FR 7334322 A FR7334322 A FR 7334322A FR 2202398 B1 FR2202398 B1 FR 2202398B1
Authority
FR
France
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
FR7334322A
Other versions
FR2202398A1 (fr
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2202398A1 publication Critical patent/FR2202398A1/fr
Application granted granted Critical
Publication of FR2202398B1 publication Critical patent/FR2202398B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H03D13/007—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations
    • H03D13/008—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations using transistors
    • 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
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1653—Detection of the presence of stereo signals and pilot signal regeneration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0009—Emitter or source coupled transistor pairs or long tail pairs
FR7334322A 1972-10-04 1973-09-25 Expired FR2202398B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47099031A JPS4992905A (fr) 1972-10-04 1972-10-04

Publications (2)

Publication Number Publication Date
FR2202398A1 FR2202398A1 (fr) 1974-05-03
FR2202398B1 true FR2202398B1 (fr) 1979-05-04

Family

ID=14235957

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7334322A Expired FR2202398B1 (fr) 1972-10-04 1973-09-25

Country Status (6)

Country Link
US (1) US3840818A (fr)
JP (1) JPS4992905A (fr)
DE (1) DE2349957A1 (fr)
FR (1) FR2202398B1 (fr)
GB (1) GB1429541A (fr)
NL (1) NL7312597A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080068132A1 (en) * 2006-05-16 2008-03-20 Georges Kayanakis Contactless radiofrequency device featuring several antennas and related antenna selection circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2570156A (en) * 1950-02-13 1951-10-02 Harold R Reiss Signal comparator system

Also Published As

Publication number Publication date
FR2202398A1 (fr) 1974-05-03
US3840818A (en) 1974-10-08
JPS4992905A (fr) 1974-09-04
NL7312597A (fr) 1974-04-08
DE2349957A1 (de) 1974-05-02
GB1429541A (en) 1976-03-24

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Legal Events

Date Code Title Description
ST Notification of lapse