SU766028A1 - Device for transmitting and receiving audio call signals through wire communication channels - Google Patents
Device for transmitting and receiving audio call signals through wire communication channels Download PDFInfo
- Publication number
- SU766028A1 SU766028A1 SU782612734A SU2612734A SU766028A1 SU 766028 A1 SU766028 A1 SU 766028A1 SU 782612734 A SU782612734 A SU 782612734A SU 2612734 A SU2612734 A SU 2612734A SU 766028 A1 SU766028 A1 SU 766028A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- transmitting
- communication channels
- wire communication
- receiving audio
- audio call
- Prior art date
Links
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- Selective Calling Equipment (AREA)
Description
При приеме тонального вызова , поступающий из линии св зи, через дифференциальную систему 3 воздействует на приемник 5, настроенный на частоту вызова. Приемник 5 срабатывает и возбуждает индикатор 6. Спадом сигнала вызова запускаетс одновибратор 9, который на врем , равное длительности сигнала квитировани , подключает генератор 1 к линии св зи через делитель 7 частоты и дифференциальную систему 3. В сторону вызывающей станции посылаетс сигнал квитировани на частоте ниже частоты тонального вызова, и, следовательно, ниже частоты настройки приемника 5, поэтому сигнёш квитировани на вызывающей стороне воспринимаетс на микротелефонную трубку 4, а приемник 5 не срабатывает.When receiving a tone call coming from the communication line, via differential system 3, it affects the receiver 5 tuned to the call frequency. Receiver 5 triggers and triggers indicator 6. By dropping the call signal, a one-shot 9 starts up, which for a time equal to the duration of the acknowledgment signal connects generator 1 to the communication line through frequency divider 7 and differential system 3. A confirmation signal is sent to the calling station the dial tone frequency, and therefore lower than the frequency of the receiver 5, therefore the handshake signal on the caller is sensed on the handset 4, and the receiver 5 does not work.
Предложенное устройство овеспечивает посылку сигнгша квитировани в сторону вызывающей станции не только в случае индивидуального, но и в случае группового вызова при работе устройства на коммутируелелх каналах и, кроме того, квитирование обеспечиваетс при работе устройства на вьзделенных каналах.The proposed device allows the sending of a handshake towards the calling station not only in the case of an individual, but also in the case of a group call when the device is working on the switching channels and, moreover, an acknowledgment is provided when the device is working on the selected channels.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782612734A SU766028A1 (en) | 1978-05-10 | 1978-05-10 | Device for transmitting and receiving audio call signals through wire communication channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782612734A SU766028A1 (en) | 1978-05-10 | 1978-05-10 | Device for transmitting and receiving audio call signals through wire communication channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU766028A1 true SU766028A1 (en) | 1980-09-23 |
Family
ID=20763363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782612734A SU766028A1 (en) | 1978-05-10 | 1978-05-10 | Device for transmitting and receiving audio call signals through wire communication channels |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU766028A1 (en) |
-
1978
- 1978-05-10 SU SU782612734A patent/SU766028A1/en active
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