JPS54150921A - Television voice receiver - Google Patents
Television voice receiverInfo
- Publication number
- JPS54150921A JPS54150921A JP6012978A JP6012978A JPS54150921A JP S54150921 A JPS54150921 A JP S54150921A JP 6012978 A JP6012978 A JP 6012978A JP 6012978 A JP6012978 A JP 6012978A JP S54150921 A JPS54150921 A JP S54150921A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signals
- tuning
- video
- signal
- 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 simplify the tuning operation by detecting the video signals from the IF signals via the video detection circuit, actuating the muting circuit by the output of the video signal through the OR circuit and giving the tuning display only when the video signal tunes to the aural signal.
CONSTITUTION: Tuner 2 can receive only the aural signals of the TV broadcast, and the output of tuner 2 is IF-converted via local oscillator 4 and mixer ciruit 3. Then the IF signals are processed at least through FM detection circuit 7, muting circuit 9 and low frequency amplifier circuit 10 each to sound the speaker. The video signals are detected from the IF signals through video detection circuit 13, and circuit 9 is acturated by the detection signal and through OR circuit 16. As a result, no noise is produced and no tuning indication is given via the muting function in case a tuning is given to the video signal or other erroneous signals, and the tuning display is given only when a tuning is secured to the aural signal. Thus, the tuning operation can be simplified greatly.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6012978A JPS54150921A (en) | 1978-05-19 | 1978-05-19 | Television voice receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6012978A JPS54150921A (en) | 1978-05-19 | 1978-05-19 | Television voice receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54150921A true JPS54150921A (en) | 1979-11-27 |
JPS6111511B2 JPS6111511B2 (en) | 1986-04-03 |
Family
ID=13133205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6012978A Granted JPS54150921A (en) | 1978-05-19 | 1978-05-19 | Television voice receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54150921A (en) |
-
1978
- 1978-05-19 JP JP6012978A patent/JPS54150921A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6111511B2 (en) | 1986-04-03 |
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