JPS6374761U - - Google Patents
Info
- Publication number
- JPS6374761U JPS6374761U JP16784886U JP16784886U JPS6374761U JP S6374761 U JPS6374761 U JP S6374761U JP 16784886 U JP16784886 U JP 16784886U JP 16784886 U JP16784886 U JP 16784886U JP S6374761 U JPS6374761 U JP S6374761U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- audio signal
- pass filter
- low
- input
- 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
- 230000005236 sound signal Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図は本考案ＦＭ音声信号再生装置をビデオ
デイスクプレーヤに適用した場合の例を示す構成
図、第２図は第１図例の低域通過フイルタ３０の
振幅特性と位相特性とを示す線図、第３図は第１
図例の説明に供する線図、第４図はビデオデイス
クプレーヤに適用された従来のＦＭ音声信号再生
装置を示す構成図、第５図は第４図例の低域通過
フイルタ１２の振幅特性と位相特性とを示す線図
、第６図は第４図例の説明に供する線図である。
１１はＦＭ復調回路、１３は接続スイツチ回路
、２５はデイエンフアシス回路、２７は補間回路
、２８及び２９は夫々ドロツプアウト検出回路、
３０は低域通過フイルタ、３９及び４０は夫々Ｆ
Ｍ音声信号再生装置である。
FIG. 1 is a block diagram showing an example in which the FM audio signal reproducing apparatus of the present invention is applied to a video disc player, and FIG. 2 is a line showing the amplitude characteristics and phase characteristics of the low-pass filter 30 in the example shown in FIG. Figure 3 is the first
4 is a diagram showing the configuration of a conventional FM audio signal reproducing device applied to a video disc player, and FIG. 5 is a diagram showing the amplitude characteristics of the low-pass filter 12 in the example shown in FIG. FIG. 6 is a diagram for explaining the example of FIG. 4. 11 is an FM demodulation circuit, 13 is a connection switch circuit, 25 is a de-emphasis circuit, 27 is an interpolation circuit, 28 and 29 are dropout detection circuits, respectively.
30 is a low pass filter, 39 and 40 are each F
This is an M audio signal reproducing device.
Claims (1)
ことを検出するドロツプアウト検出回路と、 上記ＦＭ復調回路からの復調音声信号が入力さ
れる低域通過フイルタと、 該低域通過フイルタからの出力が入力され、上
記ドロツプアウト検出回路からの出力により前置
ホールドを行う補間回路と、 該補間回路からの出力が入力されるデイエンフ
アシス回路とより成り、 上記低域通過フイルタは、分散型のインパルス
応答特性を有し、そのリンギング成分の周波数は
音声帯域より十分に高いことを特徴とするＦＭ音
声信号再生装置。[Claims for Utility Model Registration] An FM demodulation circuit that demodulates an FM audio signal, a dropout detection circuit that detects the occurrence of dropout in the FM audio signal, and a demodulated audio signal from the FM demodulation circuit is input. It consists of a low-pass filter, an interpolation circuit to which the output from the low-pass filter is input and performs pre-holding using the output from the dropout detection circuit, and a de-emphasis circuit to which the output from the interpolation circuit is input. . An FM audio signal reproducing device, wherein the low-pass filter has a distributed impulse response characteristic, and the frequency of the ringing component thereof is sufficiently higher than the audio band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16784886U JPH0725901Y2 (en) | 1986-10-31 | 1986-10-31 | FM audio signal reproduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16784886U JPH0725901Y2 (en) | 1986-10-31 | 1986-10-31 | FM audio signal reproduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6374761U true JPS6374761U (en) | 1988-05-18 |
| JPH0725901Y2 JPH0725901Y2 (en) | 1995-06-07 |
Family
ID=31100168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16784886U Expired - Lifetime JPH0725901Y2 (en) | 1986-10-31 | 1986-10-31 | FM audio signal reproduction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725901Y2 (en) |
-
1986
- 1986-10-31 JP JP16784886U patent/JPH0725901Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725901Y2 (en) | 1995-06-07 |
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