SU371854A1 - Device for receiving audio signals transmitted in the frequency band of a television signal - Google Patents
Device for receiving audio signals transmitted in the frequency band of a television signalInfo
- Publication number
- SU371854A1 SU371854A1 SU1378163A SU1378163A SU371854A1 SU 371854 A1 SU371854 A1 SU 371854A1 SU 1378163 A SU1378163 A SU 1378163A SU 1378163 A SU1378163 A SU 1378163A SU 371854 A1 SU371854 A1 SU 371854A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- frequency band
- television signal
- audio signals
- signals transmitted
- receiving audio
- Prior art date
Links
Landscapes
- Television Systems (AREA)
Description
1one
Изобретение относитс к устройствам дл приема сигналов звукового сопровождени , радиовещаии и других низкочастотных сообщений , передаваемых в полосе частот телевизионного сигнала импульсным методом.The invention relates to devices for receiving audio signals, broadcasting and other low-frequency messages transmitted in the frequency band of a television signal by a pulse method.
Известны устройства дл приема сигналов изображени и звукового сопровождени , передаваемых Б одном канале с помощью преобразовател звуковой информации в последовательность модулированных звуконесущих импульсов , расположенных в строчных гас щих интервалах.Devices are known for receiving image and sound signals transmitted in a single channel by means of an audio information converter into a sequence of modulated sound-carrying pulses located in lowercase quenching intervals.
Однако в таких устройствах отсутствует мгновенна совместимость черно-белых и цветных передач и неполностью реализуетс возможна помехоустойчивость канала звукового сопровождени .However, in such devices there is no instantaneous compatibility of black-and-white and color transmissions and the noise immunity of the soundtrack channel is not fully realized.
Предложенное устройство обладает мгновениой совместимостью черно-белых и цветных передач и, кроме того, имеет повышенную помехоустойчивость сигналов изображени , звукового сопровождени и синхронизации.The proposed device has instant compatibility of black and white and color transmissions and, in addition, has increased noise immunity of image, sound and synchronization signals.
На чертеже показана блок-схема описываемого устройства.The drawing shows a block diagram of the described device.
Устройство содержит схему 1 линейной обработки сигнала изображени , схему 2 обработки строчных и кадровых гас щих интервалов , сумматор 3, схему 4 оптимальной обработки сигналов синхронизации, схему 5 синхронизации , схему 6 формировани стандартнойThe device contains a line 1 image signal processing circuit 1, a line 2 and line dummy processing circuit 2, an adder 3, a synchronization signal optimal processing circuit 4, a synchronization circuit 5, a standard circuit 6
синхросмеси, схему 7 линейной обработки звуконесущих импульсов, схему 8 выделени звукоиесущих импульсов, схему 9 распределени звуконесущих импульсов, линию 10 задержки,sync mix, circuit 7 for linear processing of sound-carrying pulses, circuit 8 for sound-output pulses, circuit 9 for distribution of sound-carrying pulses, delay line 10,
схему 11 сложени , преобразователь 12 вида модул ции и демодул тор 13. Устройство работает следующим образом. Схема 1 линейной обработки сигнала изображени осуществл ет подъем нижних частотa adding circuit 11, a modulation type converter 12, and a demodulator 13. The device operates as follows. Linear image processing circuit 1 raises the low frequencies.
спектра телевизионного сигнала (при вполне определенной фазовой характеристике) дл компенсации предыскажений, введенных на передающей стороне. Линейно-восстановленный сигнал поступает на схему 2 обработки строчных и кадровых гас щих интервалов, котора освобол дает строчные и кадровые гас щие интервалы от звуконесущих импульсов и сигналов синхронизации, а также пассивно регенерирует защитные пакеты сигналов цветовойTV signal spectrum (with a well-defined phase response) to compensate for the pre-distortion introduced on the transmission side. The linearly reconstructed signal enters the circuit 2 for processing line and frame extinguishing intervals, which release gives line and frame extinguishing intervals from sound-carrying pulses and synchronization signals, as well as passively regenerates protective packets of color signals
поднесущей и сигналов опознани . Телевизионный сигиал, различно обработанный в активной части строк и гас щих интервалах, подастс на первый вход сумматора 3.subcarrier and identification signals. Television sigal, variously processed in the active part of the lines and dimming intervals, serves at the first input of the adder 3.
Схема 4 оптимальной обработки сигналовScheme 4 optimal signal processing
синхронизации устанавливает с заданной точностью временное положение сигналов синхронизации в телевизионном сигнале. Сигналы с выхода схемы оптимальной обработки сигналов синхронизации поступают на схему 5 синхронизации , котора формирует импульсныеsynchronization establishes with a given accuracy the temporary position of the synchronization signals in the television signal. The signals from the output of the optimal synchronization signal processing circuit arrive at the synchronization circuit 5, which forms pulsed
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1378163A SU371854A1 (en) | 1969-11-20 | 1969-11-20 | Device for receiving audio signals transmitted in the frequency band of a television signal |
| PL14453870A PL81264B1 (en) | 1969-11-20 | 1970-11-19 | |
| HUSE001542 HU166301B (en) | 1969-11-20 | 1970-11-19 | |
| HUSE001543 HU166302B (en) | 1969-11-20 | 1970-11-19 | |
| PL14453970A PL70539B1 (en) | 1969-11-20 | 1970-11-19 | |
| CS785470A CS168775B1 (en) | 1969-11-20 | 1970-11-20 | |
| RO6505070A RO64187A (en) | 1969-11-20 | 1970-11-20 | INSTALLATION FOR TRANSMITTING AND RECEIVING AUDIO SIGNALS FOR LS TELEVISION IN BLACK AND WHITE AND IN COLORS |
| FR7041716A FR2068556B1 (en) | 1969-11-20 | 1970-11-20 | |
| CS785370A CS168774B1 (en) | 1969-11-20 | 1970-11-20 | |
| BG1610870A BG18569A1 (en) | 1969-11-20 | 1970-11-20 | |
| RO6504970A RO64186A (en) | 1969-11-20 | 1970-11-20 | INSTALLATION FOR TRANSMITTING AND RECEIVING TELEVISION AUDIO SIGNALS |
| FR7041717A FR2068557B1 (en) | 1969-11-20 | 1970-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1378163A SU371854A1 (en) | 1969-11-20 | 1969-11-20 | Device for receiving audio signals transmitted in the frequency band of a television signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU371854A1 true SU371854A1 (en) | 1975-02-25 |
Family
ID=20448265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1378163A SU371854A1 (en) | 1969-11-20 | 1969-11-20 | Device for receiving audio signals transmitted in the frequency band of a television signal |
Country Status (2)
| Country | Link |
|---|---|
| BG (1) | BG18569A1 (en) |
| SU (1) | SU371854A1 (en) |
-
1969
- 1969-11-20 SU SU1378163A patent/SU371854A1/en active
-
1970
- 1970-11-20 BG BG1610870A patent/BG18569A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BG18569A1 (en) | 1975-02-25 |
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