JPS5550758A - Multiplex signal demodulator - Google Patents
Multiplex signal demodulatorInfo
- Publication number
- JPS5550758A JPS5550758A JP12435778A JP12435778A JPS5550758A JP S5550758 A JPS5550758 A JP S5550758A JP 12435778 A JP12435778 A JP 12435778A JP 12435778 A JP12435778 A JP 12435778A JP S5550758 A JPS5550758 A JP S5550758A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- voice
- multiplex
- multiplexed
- circuit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Television Receiver Circuits (AREA)
- Stereo-Broadcasting Methods (AREA)
Abstract
PURPOSE: To obtain the multiplex signal demodulator for taking out other signal by a simple circuit construction by taking out one of the multiplexed signals through LPF and inverting a part of the signals in phase and synthesizing it with the multiplexed signal.
CONSTITUTION: The voice multiplex signals 11 of TV and the like are distributed into two systems through the buffer amplifier 12. In one of the systems, the high frequency component is removed through LPF 13 to take out the vice signal 1. In the other system, a part of the signal 1 is synthesized with the signal 11 in the synthesizing circuit 22 via the phase inversion circuit 21. The signal 3 the frequency of which is modulated by the voice signal 2 is taken out and further, only the original voice signal 2 is demodulated by the frequency demodulating circuit 15. Thus, the voice signal 1 is multiplexed with the signal 3 obtained by modulating the voice signal in frequency and in case the signal 1 approaches to the signal 3 and the multiplex signal is demodulated, the demodulation device less in crosstalk and distorsion can be obtained by a simple construction.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12435778A JPS5550758A (en) | 1978-10-09 | 1978-10-09 | Multiplex signal demodulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12435778A JPS5550758A (en) | 1978-10-09 | 1978-10-09 | Multiplex signal demodulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5550758A true JPS5550758A (en) | 1980-04-12 |
Family
ID=14883383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12435778A Pending JPS5550758A (en) | 1978-10-09 | 1978-10-09 | Multiplex signal demodulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5550758A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56165469U (en) * | 1980-05-08 | 1981-12-08 |
-
1978
- 1978-10-09 JP JP12435778A patent/JPS5550758A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56165469U (en) * | 1980-05-08 | 1981-12-08 | ||
JPS6246387Y2 (en) * | 1980-05-08 | 1987-12-14 |
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