PL70141B2 - - Google Patents
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- Publication number
- PL70141B2 PL70141B2 PL15187471A PL15187471A PL70141B2 PL 70141 B2 PL70141 B2 PL 70141B2 PL 15187471 A PL15187471 A PL 15187471A PL 15187471 A PL15187471 A PL 15187471A PL 70141 B2 PL70141 B2 PL 70141B2
- Authority
- PL
- Poland
- Prior art keywords
- amplifiers
- output
- transmitting
- receiving
- teleconferences
- Prior art date
Links
Landscapes
- Telephonic Communication Services (AREA)
Description
W ten sposób sygnaly przychodzace z kierunku odbiorczego kaz¬ dego lacza, poprzez wachlarze oporników, sa rozprowadzone do kierunków nadawczych wszystkich pozostalych uczestników telekonferencji. Niepozadane sprzezenia miedzy para wzmacniaczy lacza, wystepuja na opornos¬ ciach wzajemnych ukladu, którymi sa opornosci wyjsciowe wzmacniaczy odbiorczych. Fig. 2 ilustruje czwórnik pasozytniczego sprzezenia. Przez Rwy i Rwe oznaczono opornosci: wyjsciowa wzmacniacza nadawczego i wejs¬ ciowa odbiorczego. Wczwórniku tym wyróznic mozna (n - 1) ,dróg sprzezeniowych pokazanych na fig. 3. Jego tlumiennosc mozna uczynic bardzo duza, poprzez dobór parametrów ukladu tak, ze przy wielokrotnych dro¬ gach niepozadanego sprzezenia wystepujacych w ukladzie wezla telekonferengi wynikowa wartosc tlumiennos- ci przesluchu zbliznego bedzie wystarczajaco duza.Zaleta przedstawionego ukladu wezla telekonferencyjnego jest nieporównanie wieksza funkcjonalnosc w zes¬ tawieniu z dotychczas stosowanymi ukladami konferencji pelnych i sterowanych z udzielaniem glosu. Wzmac¬ niacze ukladu spelniajace role separatora i transformatorów opornosci, wykonane w oparciu o technike tranzys¬ torowa, sa bardzo proste. PL PLIn this way, signals coming from the receiving direction of each link, through the resistor fans, are distributed to the transmit directions of all other participants in the conference call. Unwanted connections between a pair of coupler amplifiers occur at the mutual resistances of the system, which are the output resistances of the receiving amplifiers. Fig. 2 illustrates the cross of parasitic coupling. Rwy and Rwe denote the resistances: the output of the transmitting amplifier and the input of the receiving amplifier. This transformer can be distinguished (n - 1), the coupling paths shown in Fig. 3. Its attenuation can be made very large by selecting the parameters of the system so that with multiple paths of unwanted coupling occurring in the teleconference node, the resulting value of the crosstalk attenuation is The advantage of the presented teleconference node system is incomparably greater functionality compared to the full and controlled conference systems with voice-over used so far. The system amplifiers, which act as a separator and resistance transformers, are very simple and are based on the transit technique. PL PL
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15187471A PL70141B2 (en) | 1971-12-02 | 1971-12-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15187471A PL70141B2 (en) | 1971-12-02 | 1971-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
PL70141B2 true PL70141B2 (en) | 1974-02-28 |
Family
ID=19956414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL15187471A PL70141B2 (en) | 1971-12-02 | 1971-12-02 |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL70141B2 (en) |
-
1971
- 1971-12-02 PL PL15187471A patent/PL70141B2/pl unknown
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