JPS54159122A - Detection circuit for selection control signal for television audio multiplex broadcast transceiver - Google Patents
Detection circuit for selection control signal for television audio multiplex broadcast transceiverInfo
- Publication number
- JPS54159122A JPS54159122A JP6936778A JP6936778A JPS54159122A JP S54159122 A JPS54159122 A JP S54159122A JP 6936778 A JP6936778 A JP 6936778A JP 6936778 A JP6936778 A JP 6936778A JP S54159122 A JPS54159122 A JP S54159122A
- Authority
- JP
- Japan
- Prior art keywords
- selection control
- control signal
- detection circuit
- audio multiplex
- multiplex broadcast
- 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.)
- Granted
Links
Landscapes
- Television Receiver Circuits (AREA)
Abstract
PURPOSE: To avoid the malfunction simply, by forming the clock signal higher in frequency than two types of selection control signals, and identifying and detecting each selection control signal with the output produced from the two decoders when the counter counts a given 2-clock pulse number.
CONSTITUTION: The clock signal higher than the selection control signal for the TV audio multiplex receivers of two types is produced at the oscillator 13, and this signal is introduced to the counter 18 and counting is made for a given time determined by the frequency of the selection control signal received. When the counter 18 counts the number of the first and second clock pulses predetermined, output is introduced from the decoders 21 and 22 of the first and second. Further, the presence of the output of the decoders 21 and 22 identifies and detects each selection control signal to avoid the malfunction simply.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53069367A JPS586429B2 (en) | 1978-06-06 | 1978-06-06 | Switching control signal detection circuit for TV audio multiplex broadcast receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53069367A JPS586429B2 (en) | 1978-06-06 | 1978-06-06 | Switching control signal detection circuit for TV audio multiplex broadcast receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54159122A true JPS54159122A (en) | 1979-12-15 |
JPS586429B2 JPS586429B2 (en) | 1983-02-04 |
Family
ID=13400507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53069367A Expired JPS586429B2 (en) | 1978-06-06 | 1978-06-06 | Switching control signal detection circuit for TV audio multiplex broadcast receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS586429B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5553366U (en) * | 1978-10-05 | 1980-04-10 |
-
1978
- 1978-06-06 JP JP53069367A patent/JPS586429B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5553366U (en) * | 1978-10-05 | 1980-04-10 |
Also Published As
Publication number | Publication date |
---|---|
JPS586429B2 (en) | 1983-02-04 |
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