RO91848B1 - Method and device for detecting and decoding coded datas fm, mfm, m2fm - Google Patents

Method and device for detecting and decoding coded datas fm, mfm, m2fm

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Publication number
RO91848B1
RO91848B1 RO117828A RO11782885A RO91848B1 RO 91848 B1 RO91848 B1 RO 91848B1 RO 117828 A RO117828 A RO 117828A RO 11782885 A RO11782885 A RO 11782885A RO 91848 B1 RO91848 B1 RO 91848B1
Authority
RO
Romania
Prior art keywords
signal
received
detecting
m2fm
mfm
Prior art date
Application number
RO117828A
Other languages
Romanian (ro)
Other versions
RO91848A2 (en
Inventor
Constantin Adrian Tudoran
Original Assignee
Fabrica De Memorii Electronice Si Componente Pentru Tehnica De Calcul
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 Fabrica De Memorii Electronice Si Componente Pentru Tehnica De Calcul filed Critical Fabrica De Memorii Electronice Si Componente Pentru Tehnica De Calcul
Priority to RO117828A priority Critical patent/RO91848B1/en
Publication of RO91848A2 publication Critical patent/RO91848A2/en
Publication of RO91848B1 publication Critical patent/RO91848B1/en

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Abstract

Inventia se refera la o metoda si la un aparat, pentru detectia fronturilor semnalului receptionat prin intersectia dintre semnalul receptionat amplificat si filtrat ca semnalul receptionat amplificat, filtrat dar si întarziat cu 0,75T, unde T1 este durata unui bit de informatie, decodificarea semnalului a caror fronturi au fost detectate realizandu-se prin formarea a cate unui impuls la fiecare tranzitie a semnalului detectat, impulsuri ce comanda un circuit astabil ce are frecventa de oscilatie libera putin mai mare decat 1/T1 generandu-se astfel fereastra de date care, prin intermediul unui circuit de separare a semnalului de date de cel de sincronizare, asigura formarea acestor doua semnale necesare preluarii de catre utilizator a informatiei receptionate.The invention relates to a method and to an apparatus for detecting signal fronts received by the intersection of the amplified and filtered signal received as amplified, filtered and delayed received signal with 0.75T, where T1 is the duration of an information bit, the decoding of the signal a whose fronts have been detected by creating an impulse at each transition of the detected signal, impulses which command an astable circuit having a free oscillation frequency slightly greater than 1 / T1 generating a data window which, through via a data-separation circuit of the synchronization signal, ensures the formation of these two signals necessary for the user to receive the received information.

RO117828A 1985-03-02 1985-03-02 Method and device for detecting and decoding coded datas fm, mfm, m2fm RO91848B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO117828A RO91848B1 (en) 1985-03-02 1985-03-02 Method and device for detecting and decoding coded datas fm, mfm, m2fm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO117828A RO91848B1 (en) 1985-03-02 1985-03-02 Method and device for detecting and decoding coded datas fm, mfm, m2fm

Publications (2)

Publication Number Publication Date
RO91848A2 RO91848A2 (en) 1987-06-30
RO91848B1 true RO91848B1 (en) 1987-07-01

Family

ID=20116683

Family Applications (1)

Application Number Title Priority Date Filing Date
RO117828A RO91848B1 (en) 1985-03-02 1985-03-02 Method and device for detecting and decoding coded datas fm, mfm, m2fm

Country Status (1)

Country Link
RO (1) RO91848B1 (en)

Also Published As

Publication number Publication date
RO91848A2 (en) 1987-06-30

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