JPH0458855U - - Google Patents
Info
- Publication number
- JPH0458855U JPH0458855U JP9809490U JP9809490U JPH0458855U JP H0458855 U JPH0458855 U JP H0458855U JP 9809490 U JP9809490 U JP 9809490U JP 9809490 U JP9809490 U JP 9809490U JP H0458855 U JPH0458855 U JP H0458855U
- Authority
- JP
- Japan
- Prior art keywords
- signal line
- data
- digital signal
- converter
- switching
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 3
- 230000005764 inhibitory process Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第1図及び第2図はこの考案に係る音響機器の
入力回路の実施例を示し、第1図は機能ブロツク
図、第2図はハードウエアのブロツク図である。
主な符号の説明、3……デイジタル信号ライン
、4……デイジタルオーデイオインターフエース
装置、5……アナログ信号ライン、6……ボリウ
ム、7……A/D変換器、8……スイツチ、10
……マイクロコンピユータ。
1 and 2 show an embodiment of an input circuit for an audio device according to this invention, with FIG. 1 being a functional block diagram and FIG. 2 being a hardware block diagram. Explanation of main symbols, 3...Digital signal line, 4...Digital audio interface device, 5...Analog signal line, 6...Volume, 7...A/D converter, 8...Switch, 10
...Microcomputer.
Claims (1)
ンと、この二つの信号ラインを切り換える切換手
段とからなる音響機器において、 前記デイジタル信号ライン上のカテゴリーコー
ド及びコピービツトの状態を検出するコピー禁止
検出手段を設け、前記コピー禁止検出手段の検出
結果に基づき前記切換手段を制御するように構成
したことを特徴とする音響機器の入力切換回路。 2 アナログ信号ラインの信号をボリウムを介し
て予めきめられた記録フオーマツトに変換する機
能を有するA/D変換器に導くと共に、前記A/
D変換器の出力データとデイジタル信号ライン上
のデータとを比較するデータ比較手段を設け、前
記データ比較手段に基づき、前記2つのデータが
略等しくなるように前記ボリウムを制御するよう
に構成したことを特徴とする請求項1記載の音響
機器の入力切換回路。[Claims for Utility Model Registration] 1. In an audio device comprising a digital signal line, an analog signal line, and a switching means for switching between these two signal lines, the state of the category code and copy bit on the digital signal line is detected. 1. An input switching circuit for an audio device, characterized in that a copy inhibition detection means is provided, and the switching means is controlled based on a detection result of the copy inhibition detection means. 2 leads the signal of the analog signal line to the A/D converter which has the function of converting into a predetermined recording format via the volume, and
A data comparing means for comparing the output data of the D converter and the data on the digital signal line is provided, and the volume is controlled based on the data comparing means so that the two data are substantially equal. The input switching circuit for audio equipment according to claim 1, characterized in that:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9809490U JPH0458855U (en) | 1990-09-20 | 1990-09-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9809490U JPH0458855U (en) | 1990-09-20 | 1990-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0458855U true JPH0458855U (en) | 1992-05-20 |
Family
ID=31839006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9809490U Pending JPH0458855U (en) | 1990-09-20 | 1990-09-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0458855U (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6365169B2 (en) * | 1981-12-01 | 1988-12-14 | ||
JPS6413260A (en) * | 1987-07-06 | 1989-01-18 | Mitsubishi Electric Corp | Digital signal recorder |
JPH03102676A (en) * | 1989-09-14 | 1991-04-30 | Matsushita Electric Ind Co Ltd | Information recorder |
-
1990
- 1990-09-20 JP JP9809490U patent/JPH0458855U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6365169B2 (en) * | 1981-12-01 | 1988-12-14 | ||
JPS6413260A (en) * | 1987-07-06 | 1989-01-18 | Mitsubishi Electric Corp | Digital signal recorder |
JPH03102676A (en) * | 1989-09-14 | 1991-04-30 | Matsushita Electric Ind Co Ltd | Information recorder |
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