ES476558A3 - A radio receiver for modular seques by frequency displacement (fsk). (Machine-translation by Google Translate, not legally binding) - Google Patents

A radio receiver for modular seques by frequency displacement (fsk). (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES476558A3
ES476558A3 ES476558A ES476558A ES476558A3 ES 476558 A3 ES476558 A3 ES 476558A3 ES 476558 A ES476558 A ES 476558A ES 476558 A ES476558 A ES 476558A ES 476558 A3 ES476558 A3 ES 476558A3
Authority
ES
Spain
Prior art keywords
output
fsk
translation
machine
legally binding
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
ES476558A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Priority to ES476558A priority Critical patent/ES476558A3/en
Publication of ES476558A3 publication Critical patent/ES476558A3/en
Expired legal-status Critical Current

Links

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  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

A radio receiver for frequency shift modulated (fsk) signals on an rf carrier comprising first and second signal circuits to which the received radio signals are applied, each signal circuit including a mixer circuit followed by a pass filter and a step limiter amplifier, a local oscillator operating at the carrier frequency, the output of the local oscillator being applied directly to a mixing circuit, means for applying the output of the oscillator to the other mixing circuit, with a phase shift of 90ºC and a clock-controlled d-type flip-flop, to which input d the output of one of the limiter amplifier steps is applied, while the output of the other limiter amplifier step is applied to the flip-flop clock input. (Machine-translation by Google Translate, not legally binding)
ES476558A 1979-01-03 1979-01-03 A radio receiver for modular seques by frequency displacement (fsk). (Machine-translation by Google Translate, not legally binding) Expired ES476558A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES476558A ES476558A3 (en) 1979-01-03 1979-01-03 A radio receiver for modular seques by frequency displacement (fsk). (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES476558A ES476558A3 (en) 1979-01-03 1979-01-03 A radio receiver for modular seques by frequency displacement (fsk). (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES476558A3 true ES476558A3 (en) 1979-06-16

Family

ID=8477386

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476558A Expired ES476558A3 (en) 1979-01-03 1979-01-03 A radio receiver for modular seques by frequency displacement (fsk). (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES476558A3 (en)

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