JPS5564479A - Television sound multiplex receiver - Google Patents
Television sound multiplex receiverInfo
- Publication number
- JPS5564479A JPS5564479A JP13810578A JP13810578A JPS5564479A JP S5564479 A JPS5564479 A JP S5564479A JP 13810578 A JP13810578 A JP 13810578A JP 13810578 A JP13810578 A JP 13810578A JP S5564479 A JPS5564479 A JP S5564479A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- detection circuit
- change
- amplifier
- 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
- 238000001514 detection method Methods 0.000 abstract 6
- 239000011159 matrix material Substances 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
- H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Television Receiver Circuits (AREA)
- Stereo-Broadcasting Methods (AREA)
Abstract
PURPOSE:To generate an output signal corresponding to the contents of a broadcast signal by automatically switching a change-over circuit in accordance with the contents, by bringing a detection circuit and the change-over circuit, provided to a receiver, under digital control. CONSTITUTION:This receiver consists of detection circuit 5 detecting a sound intermediate frequency signal, LPF6 separating a main channel signal from the output signal of circuit 5, BPF7 separating a control signal from a sub-channel, amplifier- detector circuit 10 further detecting a FM wave, LPF11, positive and negative signal generating circuit 12, transistor 13, and detection circuit 14 converting a control channel signal extracted from filter 7 into a two-bit digital signal. Then, detection circuit 14 is composed of an amplifier circuit, detection circuit, single-frequency signal passing filter, and digital signal generating circuit. In addition, matrix circuits 24 and 25, change-over circuit 31 of an electronic switch circuit, and a selective control circuit are provided. Among them, the amplifier circuit, matrix circuits, change-over circuit, detection circuit, etc., are integrated to simplify this constitution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53138105A JPS6053947B2 (en) | 1978-11-07 | 1978-11-07 | TV audio multiplex receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53138105A JPS6053947B2 (en) | 1978-11-07 | 1978-11-07 | TV audio multiplex receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5564479A true JPS5564479A (en) | 1980-05-15 |
| JPS6053947B2 JPS6053947B2 (en) | 1985-11-28 |
Family
ID=15214055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53138105A Expired JPS6053947B2 (en) | 1978-11-07 | 1978-11-07 | TV audio multiplex receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053947B2 (en) |
-
1978
- 1978-11-07 JP JP53138105A patent/JPS6053947B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6053947B2 (en) | 1985-11-28 |
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