RO66811B1 - Sistem de televiziune alb-negru, cu frecventa purtatoare comuna pentru semnalul video si semnalul audio - Google Patents

Sistem de televiziune alb-negru, cu frecventa purtatoare comuna pentru semnalul video si semnalul audio

Info

Publication number
RO66811B1
RO66811B1 RO68317A RO6831771A RO66811B1 RO 66811 B1 RO66811 B1 RO 66811B1 RO 68317 A RO68317 A RO 68317A RO 6831771 A RO6831771 A RO 6831771A RO 66811 B1 RO66811 B1 RO 66811B1
Authority
RO
Romania
Prior art keywords
signal
black
video
television system
common carrier
Prior art date
Application number
RO68317A
Other languages
English (en)
Other versions
RO66811A2 (fr
Inventor
Angelescu Nicolae
Original Assignee
Angelescu Nicolae
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 Angelescu Nicolae filed Critical Angelescu Nicolae
Priority to RO6831771A priority Critical patent/RO66811A2/ro
Publication of RO66811B1 publication Critical patent/RO66811B1/ro
Publication of RO66811A2 publication Critical patent/RO66811A2/ro

Links

Landscapes

  • Amplitude Modulation (AREA)

Abstract

Inventia se refera la un sistem de televiziune alb-negru cu o singura frecventa purtatoare comuna pentru semnalul video si audio la care modulatorul este constituit din doua tranzistoare modulare complementare complementare pnp si npn în baza carora se aplica semnalele modulatore prin intermediul a doua diode montate corespunzator si anume un semnal în prima semiperioada, iar celalalt semnal în a doua semiperioada, semnalul obtinut la iesirea tranzistoarelor modulatoare fiind aplicat unor etaje de amplificare si sumate într-un transformator în secundarul caruia se obtine semnalul util, iar la demodulare semnalele vor fi detectate corespunzator de doua diode si integrate de cîte un circuit RC la iesirea caruia se vor obtine cele doua semnale utile.
RO6831771A 1971-09-30 1971-09-30 Systeme de television blanc-noir a frequence porteprocede de polymerisation en suspension du chlorure de vinyle use commune pour signal video et signal audio RO66811A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO6831771A RO66811A2 (fr) 1971-09-30 1971-09-30 Systeme de television blanc-noir a frequence porteprocede de polymerisation en suspension du chlorure de vinyle use commune pour signal video et signal audio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO6831771A RO66811A2 (fr) 1971-09-30 1971-09-30 Systeme de television blanc-noir a frequence porteprocede de polymerisation en suspension du chlorure de vinyle use commune pour signal video et signal audio

Publications (2)

Publication Number Publication Date
RO66811B1 true RO66811B1 (ro) 1983-01-30
RO66811A2 RO66811A2 (fr) 1983-02-01

Family

ID=20089637

Family Applications (1)

Application Number Title Priority Date Filing Date
RO6831771A RO66811A2 (fr) 1971-09-30 1971-09-30 Systeme de television blanc-noir a frequence porteprocede de polymerisation en suspension du chlorure de vinyle use commune pour signal video et signal audio

Country Status (1)

Country Link
RO (1) RO66811A2 (ro)

Also Published As

Publication number Publication date
RO66811A2 (fr) 1983-02-01

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