JPH0213300U - - Google Patents
Info
- Publication number
- JPH0213300U JPH0213300U JP1988090501U JP9050188U JPH0213300U JP H0213300 U JPH0213300 U JP H0213300U JP 1988090501 U JP1988090501 U JP 1988090501U JP 9050188 U JP9050188 U JP 9050188U JP H0213300 U JPH0213300 U JP H0213300U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- memory
- frequency shifter
- shifter
- 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
- 238000010586 diagram Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 2
Description
第１図は本考案の一実施例のブロツク図、第２
図は第１図に示す各部の信号の周波数スペクトラ
ム及びフイルタの周波数特性の図、第３図は従来
のデイジタル方式の録音再生装置のブロツク図、
第４図は第３図に示す各部の信号の周波数スペク
トラムの図である。
１……ハイドロフオン、２……第１の増幅器、
３……第１の周波数変移器、４……アナログ―デ
イジタル変換器、５……メモリ、６……デイジタ
ル―アナログ変換器、７……第２の周波数変移器
、８……第２の増幅器、９……ヘツドフオン。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is a diagram of the frequency spectrum of the signal of each part shown in Figure 1 and the frequency characteristic of the filter, Figure 3 is a block diagram of a conventional digital recording/playback device,
FIG. 4 is a diagram of the frequency spectrum of the signals of each part shown in FIG. 3. 1...hydrofon, 2...first amplifier,
3...First frequency shifter, 4...Analog-digital converter, 5...Memory, 6...Digital-analog converter, 7...Second frequency shifter, 8...Second amplifier , 9...Hetsudofon.
Claims (1)
第１の周波数変移器と、前記第１の周波数変移器
により低い方へ変移した信号をデイジタル的に記
憶するメモリと、メモリから読み出した信号の周
波数を元の高い周波数に戻す第２の周波数変移器
とを備えたことを特徴とするデイジタル式録音再
生装置。 (2) 入力の音響信号を増幅する第１の増幅器と
、前記第１の増幅器により増幅された周波数を低
い方へ変移する第１の周波数変移器と、前記第１
の周波数変移器により低い方へ変移された信号を
デイジタル的に記憶するメモリと、メモリから読
み出した信号の周波数を元の高い周波数に戻す第
２の周波数変移器と、前記第２の周波数変移器か
らの再生信号を増幅する第２の増幅器とを備えた
ことを特徴とするデイジタル式録音再生装置。[Claims for Utility Model Registration] (1) A first frequency shifter that shifts the frequency of an input acoustic signal to a lower side, and digitally stores the signal shifted to a lower side by the first frequency shifter. A digital recording and reproducing device comprising a memory and a second frequency shifter that returns the frequency of a signal read from the memory to its original high frequency. (2) a first amplifier that amplifies an input acoustic signal; a first frequency shifter that shifts the frequency amplified by the first amplifier to a lower side;
a memory for digitally storing the signal shifted to a lower level by the frequency shifter; a second frequency shifter for returning the frequency of the signal read from the memory to the original higher frequency; and the second frequency shifter. A digital recording/playback device comprising: a second amplifier for amplifying a playback signal from the digital recording/playback device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988090501U JPH0213300U (en) | 1988-07-09 | 1988-07-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988090501U JPH0213300U (en) | 1988-07-09 | 1988-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0213300U true JPH0213300U (en) | 1990-01-26 |
Family
ID=31315019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988090501U Pending JPH0213300U (en) | 1988-07-09 | 1988-07-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0213300U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5351701A (en) * | 1976-10-20 | 1978-05-11 | Matsushita Electric Ind Co Ltd | Audio recording and reproducing system |
-
1988
- 1988-07-09 JP JP1988090501U patent/JPH0213300U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5351701A (en) * | 1976-10-20 | 1978-05-11 | Matsushita Electric Ind Co Ltd | Audio recording and reproducing system |
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