JPS61176878U - - Google Patents
Info
- Publication number
- JPS61176878U JPS61176878U JP1985059286U JP5928685U JPS61176878U JP S61176878 U JPS61176878 U JP S61176878U JP 1985059286 U JP1985059286 U JP 1985059286U JP 5928685 U JP5928685 U JP 5928685U JP S61176878 U JPS61176878 U JP S61176878U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- synchronization
- digital
- audio
- definition television
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims 4
- 238000000034 method Methods 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Television Receiver Circuits (AREA)
- Television Systems (AREA)
Description
第１図はこの考案の高品位テレビジヨン受信機
の１実施例のブロツク図、第２図は第１図の同期
制御部の詳細なブロツク図、第３図ａ〜ｃは第２
図の動作説明用タイミングチヤート、第４図は第
１図の音声デコード部の詳細なブロツク図、第５
図は第４図のミユート回路の詳細な結線図、第６
図は従来の高品位テレビジヨン受信機のブロツク
図、第７図は第６図の音声デコード部の詳細なブ
ロツク図である。
１……デジタル変換部、２……分離部、３……
映像信号処理部、１０……表示部、１３……音声
出力部、１５……同期制御部、１６……音声デコ
ード部、１６ｂ……ミユート回路。
FIG. 1 is a block diagram of one embodiment of the high-definition television receiver of this invention, FIG. 2 is a detailed block diagram of the synchronization control section of FIG. 1, and FIGS.
4 is a detailed block diagram of the audio decoding section of FIG. 1, and 5 is a timing chart for explaining the operation.
The figure is a detailed wiring diagram of the mute circuit in Figure 4, and Figure 6.
This figure is a block diagram of a conventional high-definition television receiver, and FIG. 7 is a detailed block diagram of the audio decoding section of FIG. 6. 1...Digital conversion section, 2...Separation section, 3...
Video signal processing unit, 10...Display unit, 13...Audio output unit, 15...Synchronization control unit, 16...Audio decoding unit, 16b...Mute circuit.
Claims (1)
び時間軸多重により形成された高品位テレビ信号
を受信して再生処理する高品位テレビジヨン受像
機において、受信した前記高品位テレビ信号をデ
ジタル変換するデジタル変換部と、該変換部のデ
ジタル信号をデジタルの映像信号、音声信号、制
御信号などの種々の信号に分離して出力する分離
部と、前記デジタルの映像信号、制御信号により
前記デジタルの映像信号を処理して画面表示部に
アナログの映像信号を供給する映像処理部と、前
記デジタルの映像信号に含まれる再生同期信号と
内部形成された再生制御用の内部同期信号との同
期はずれを検出し、前記内部同期信号を前記再生
同期信号に同期制御する同期制御部と、前記デジ
タルの音声信号をアナログ変換して音声出力部に
アナログの音声信号を供給する音声デコード部と
を備え、かつ前記音声デコード部に、前記同期制
御部の同期はずれ検出信号により、同期はずれの
生じる間前記デジタルまたはアナログの音声信号
をミユーテイング制御する音声ミユーテイング手
段を設けた高品位テレビジヨン受信機。 In a high-definition television receiver that receives and reproduces a high-definition television signal formed by band compression and time axis multiplexing using a fixed-density subsampling method, a digital conversion unit that digitally converts the received high-definition television signal; , a separation unit that separates the digital signal of the conversion unit into various signals such as a digital video signal, an audio signal, and a control signal, and outputs the separated signals; and a separation unit that processes the digital video signal using the digital video signal and control signal. A video processing unit that supplies an analog video signal to the screen display unit detects a loss of synchronization between a playback synchronization signal included in the digital video signal and an internal synchronization signal for playback control generated internally, and a synchronization control section that controls a synchronization signal in synchronization with the playback synchronization signal; and an audio decoding section that converts the digital audio signal into analog and supplies the analog audio signal to the audio output section; . A high-definition television receiver comprising an audio muting means for controlling muting of the digital or analog audio signal while an out-of-synchronization occurs based on an out-of-synchronization detection signal from the synchronization control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985059286U JPH073737Y2 (en) | 1985-04-20 | 1985-04-20 | High definition television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985059286U JPH073737Y2 (en) | 1985-04-20 | 1985-04-20 | High definition television receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61176878U true JPS61176878U (en) | 1986-11-05 |
| JPH073737Y2 JPH073737Y2 (en) | 1995-01-30 |
Family
ID=30585571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985059286U Expired - Lifetime JPH073737Y2 (en) | 1985-04-20 | 1985-04-20 | High definition television receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073737Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990004904A1 (en) * | 1988-10-24 | 1990-05-03 | Matsushita Electric Industrial Co., Ltd. | Television receiver |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5152228A (en) * | 1974-10-31 | 1976-05-08 | Matsushita Electric Ind Co Ltd | |
| JPS55161475A (en) * | 1979-06-04 | 1980-12-16 | Fujitsu General Ltd | Squelch circuit of television receiver |
| JPS5624885A (en) * | 1979-08-06 | 1981-03-10 | Matsushita Electric Ind Co Ltd | Audio muting circuit |
| JPS5736785A (en) * | 1980-08-15 | 1982-02-27 | Hitachi Ltd | Fuel cell |
-
1985
- 1985-04-20 JP JP1985059286U patent/JPH073737Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5152228A (en) * | 1974-10-31 | 1976-05-08 | Matsushita Electric Ind Co Ltd | |
| JPS55161475A (en) * | 1979-06-04 | 1980-12-16 | Fujitsu General Ltd | Squelch circuit of television receiver |
| JPS5624885A (en) * | 1979-08-06 | 1981-03-10 | Matsushita Electric Ind Co Ltd | Audio muting circuit |
| JPS5736785A (en) * | 1980-08-15 | 1982-02-27 | Hitachi Ltd | Fuel cell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990004904A1 (en) * | 1988-10-24 | 1990-05-03 | Matsushita Electric Industrial Co., Ltd. | Television receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH073737Y2 (en) | 1995-01-30 |
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