CH376810A - Selektive Empfangsschaltung für Rufsignale von vorbestimmter Frequenz - Google Patents

Selektive Empfangsschaltung für Rufsignale von vorbestimmter Frequenz

Info

Publication number
CH376810A
CH376810A CH8134559A CH8134559A CH376810A CH 376810 A CH376810 A CH 376810A CH 8134559 A CH8134559 A CH 8134559A CH 8134559 A CH8134559 A CH 8134559A CH 376810 A CH376810 A CH 376810A
Authority
CH
Switzerland
Prior art keywords
receiving circuit
predetermined frequency
ringing signals
selective receiving
selective
Prior art date
Application number
CH8134559A
Other languages
German (de)
English (en)
Inventor
Theodor Dipl Ing Brenig
Original Assignee
Hasler 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
Priority to NL258644D priority Critical patent/NL258644A/xx
Application filed by Hasler Ag filed Critical Hasler Ag
Priority to CH8134559A priority patent/CH376810A/de
Priority to GB3995760A priority patent/GB962337A/en
Priority to FR845186A priority patent/FR1275212A/fr
Publication of CH376810A publication Critical patent/CH376810A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/025—Selective call decoders
    • H04W88/027—Selective call decoders using frequency address codes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/20—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for producing frequency-selective operation of the relay
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude
    • H03G11/002—Limiting amplitude; Limiting rate of change of amplitude without controlling loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude
    • H03G11/02—Limiting amplitude; Limiting rate of change of amplitude by means of diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H03G3/341—Muting when no signals or only weak signals are present
    • 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
    • H04B1/1638—Special circuits to enhance selectivity of receivers not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
CH8134559A 1959-12-02 1959-12-02 Selektive Empfangsschaltung für Rufsignale von vorbestimmter Frequenz CH376810A (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL258644D NL258644A (en)) 1959-12-02
CH8134559A CH376810A (de) 1959-12-02 1959-12-02 Selektive Empfangsschaltung für Rufsignale von vorbestimmter Frequenz
GB3995760A GB962337A (en) 1959-12-02 1960-11-21 A receiver circuit for call signals of a predetermined frequency
FR845186A FR1275212A (fr) 1959-12-02 1960-11-28 Montage récepteur pour signaux d'appel de fréquence prédéterminée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8134559A CH376810A (de) 1959-12-02 1959-12-02 Selektive Empfangsschaltung für Rufsignale von vorbestimmter Frequenz
FR845186A FR1275212A (fr) 1959-12-02 1960-11-28 Montage récepteur pour signaux d'appel de fréquence prédéterminée

Publications (1)

Publication Number Publication Date
CH376810A true CH376810A (de) 1964-04-15

Family

ID=25738545

Family Applications (1)

Application Number Title Priority Date Filing Date
CH8134559A CH376810A (de) 1959-12-02 1959-12-02 Selektive Empfangsschaltung für Rufsignale von vorbestimmter Frequenz

Country Status (3)

Country Link
CH (1) CH376810A (en))
FR (1) FR1275212A (en))
NL (1) NL258644A (en))

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714583A (en) * 1970-08-26 1973-01-30 Rca Corp Muting circuit

Also Published As

Publication number Publication date
NL258644A (en))
FR1275212A (fr) 1961-11-03

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