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, m2fmInfo
- 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
Links
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- Circuits Of Receivers In General (AREA)
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.
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) |
-
1985
- 1985-03-02 RO RO117828A patent/RO91848B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
RO91848A2 (en) | 1987-06-30 |
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