SU575780A1 - Method of protecting audio signal receiver from untimely operation at multifrequency transmission of data through telephone channels with two frequency signalling - Google Patents
Method of protecting audio signal receiver from untimely operation at multifrequency transmission of data through telephone channels with two frequency signallingInfo
- Publication number
- SU575780A1 SU575780A1 SU7301934416A SU1934416A SU575780A1 SU 575780 A1 SU575780 A1 SU 575780A1 SU 7301934416 A SU7301934416 A SU 7301934416A SU 1934416 A SU1934416 A SU 1934416A SU 575780 A1 SU575780 A1 SU 575780A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- data
- audio signal
- signal receiver
- telephone channels
- frequency signalling
- Prior art date
Links
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Description
бора отсчете времени непрерьшного при-частот, наход щихс в полосе частот присутстви в передаваемом сигнале частот,емника тонального набора, прерывают, наход щихс в полосе частот приемникаесли врем присутстви этих частот тонального набора, отличаю-достигло предела, определ емого врещ и и с тем, что, с целью обеспе- 5менем срабатывани приемника тональчени целостности установленного соеди-ного набора, и возобновл ют через нени при наличии в передаваемом сигна-промежуток времени, определ емый вреле частот, наход щихс в полосе частотменем возвращени приемника тональноприемника тонального набора, передачуго набора в исходное состо ние.Boron counting the time of the continuous at-frequencies in the frequency band of the presence in the transmitted signal of frequencies that, in order to ensure that the receiver triggers the integrity integrity of the set up dial-up set, and renews it when the transmitted signal-period is determined by the frequency The receiver will reset the tone receiver to a tonal set, the transmission to the initial state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7301934416A SU575780A1 (en) | 1973-06-18 | 1973-06-18 | Method of protecting audio signal receiver from untimely operation at multifrequency transmission of data through telephone channels with two frequency signalling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7301934416A SU575780A1 (en) | 1973-06-18 | 1973-06-18 | Method of protecting audio signal receiver from untimely operation at multifrequency transmission of data through telephone channels with two frequency signalling |
Publications (1)
Publication Number | Publication Date |
---|---|
SU575780A1 true SU575780A1 (en) | 1977-10-05 |
Family
ID=20557219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7301934416A SU575780A1 (en) | 1973-06-18 | 1973-06-18 | Method of protecting audio signal receiver from untimely operation at multifrequency transmission of data through telephone channels with two frequency signalling |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU575780A1 (en) |
-
1973
- 1973-06-18 SU SU7301934416A patent/SU575780A1/en active
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