JPH01126743U - - Google Patents
Info
- Publication number
- JPH01126743U JPH01126743U JP2236888U JP2236888U JPH01126743U JP H01126743 U JPH01126743 U JP H01126743U JP 2236888 U JP2236888 U JP 2236888U JP 2236888 U JP2236888 U JP 2236888U JP H01126743 U JPH01126743 U JP H01126743U
- Authority
- JP
- Japan
- Prior art keywords
- error detection
- digital signal
- error
- detection code
- generation means
- 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 claims description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Description
第１図は本考案の一実施例のブロツク系統図、
第２図は本考案のデイジタル信号復号器を有する
テレビジヨン受像機の要部の一例のブロツク系統
図、第３図は第２図中のフレーム同期回路の一例
の回路系統図、第４図は第２図中のＲＡＭの処理
動作を模式的に示す図、第５図はテレビ音声多重
放送信号の一例の周波数スペクトラム図、第６図
は１フレームの信号フオーマツトの一例を示す図
、第７図は音声データの一例の信号フオーマツト
を示す図である。
１８……スケール検出回路、１９……エラー検
出回路、２０……伸長回路、２４……ランダム・
アクセス・メモリ（ＲＡＭ）、３２……７ビツト
シフトレジスタ、３３……レンジ検出器、３４…
…ラツチ及びセレクタ、３５……１１ビツトシフ
トレジスタ、３６……誤り検出器、３７……音声
データ出力端子、３８……誤り検出パルス出力端
子。
FIG. 1 is a block system diagram of an embodiment of the present invention.
FIG. 2 is a block system diagram of an example of the essential parts of a television receiver having the digital signal decoder of the present invention, FIG. 3 is a circuit system diagram of an example of the frame synchronization circuit in FIG. 2, and FIG. FIG. 5 is a diagram schematically showing the processing operation of the RAM in FIG. 2, FIG. 5 is a frequency spectrum diagram of an example of a TV audio multiplex broadcast signal, FIG. 6 is a diagram showing an example of the signal format of one frame, and FIG. 1 is a diagram showing a signal format of an example of audio data; FIG. 18... Scale detection circuit, 19... Error detection circuit, 20... Expansion circuit, 24... Random
Access memory (RAM), 32...7-bit shift register, 33...range detector, 34...
...Latch and selector, 35...11-bit shift register, 36...Error detector, 37...Audio data output terminal, 38...Error detection pulse output terminal.
Claims (1)
たデイジタル信号が供給され、その誤り検出、訂
正を行なつてもとのデータに復号するデイジタル
信号復号器において、 入力デイジタル信号中の所定の複数のデータか
らそれらを生成要素とする誤り検出符号を生成す
る誤り検出符号生成手段と、 該誤り検出符号生成手段よりの誤り検出符号と
上記入力デイジタル信号とから誤りの有無の検出
を行ない、誤り有りを検出する毎に誤り検出パル
スを出力するエラー検出回路とを具備してなるデ
イジタル信号復号器。[Claim for Utility Model Registration] In a digital signal decoder which is supplied with a digital signal coded to enable error detection and correction, and which detects and corrects the error and decodes it into the original data, the input Error detection code generation means for generating an error detection code using a plurality of predetermined data in a digital signal as generation elements; and detecting the presence or absence of an error from the error detection code from the error detection code generation means and the input digital signal. What is claimed is: 1. A digital signal decoder comprising: an error detection circuit which performs error detection and outputs an error detection pulse every time an error is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022368U JPH089940Y2 (en) | 1988-02-24 | 1988-02-24 | Digital signal decoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022368U JPH089940Y2 (en) | 1988-02-24 | 1988-02-24 | Digital signal decoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01126743U true JPH01126743U (en) | 1989-08-30 |
| JPH089940Y2 JPH089940Y2 (en) | 1996-03-21 |
Family
ID=31240423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988022368U Expired - Lifetime JPH089940Y2 (en) | 1988-02-24 | 1988-02-24 | Digital signal decoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089940Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141845A (en) * | 1983-02-03 | 1984-08-14 | Nippon Hoso Kyokai <Nhk> | Transmission system of digital signal |
| JPS62139155U (en) * | 1986-02-20 | 1987-09-02 | ||
| JPS62266935A (en) * | 1986-05-15 | 1987-11-19 | Matsushita Electric Ind Co Ltd | Pcm sound receiving method |
-
1988
- 1988-02-24 JP JP1988022368U patent/JPH089940Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141845A (en) * | 1983-02-03 | 1984-08-14 | Nippon Hoso Kyokai <Nhk> | Transmission system of digital signal |
| JPS62139155U (en) * | 1986-02-20 | 1987-09-02 | ||
| JPS62266935A (en) * | 1986-05-15 | 1987-11-19 | Matsushita Electric Ind Co Ltd | Pcm sound receiving method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089940Y2 (en) | 1996-03-21 |
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