JPS6418428U - - Google Patents
Info
- Publication number
- JPS6418428U JPS6418428U JP11311187U JP11311187U JPS6418428U JP S6418428 U JPS6418428 U JP S6418428U JP 11311187 U JP11311187 U JP 11311187U JP 11311187 U JP11311187 U JP 11311187U JP S6418428 U JPS6418428 U JP S6418428U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- vhd
- ahd
- recording section
- recorded
- 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
- 230000005236 sound signal Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図、第２図は同ＶＨＤ再生時のＦＭ復調器の
出力スペクトラム図、第３図は同ＶＨＤ信号、判
別信号の周波数スペクトラム図、第４図は同ＡＨ
Ｄ再生時のＦＭ再生時のＦＭ復調器の出力スペク
トラム図、第５図は同ＡＨＤ信号、判別信号の周
波数スペクトラム図である。
Ａ……再生装置、１……デイスク状記録媒体、
５……ＡＨＤ方式信号再生回路、６……ＶＨＤ方
式信号再生回路、９，１０……読取手段、１１，
１２，１３……切換手段。
Figure 1 is a block diagram showing the configuration of an embodiment of this invention, Figure 2 is an output spectrum diagram of the FM demodulator during VHD playback, Figure 3 is a frequency spectrum diagram of the VHD signal and discrimination signal, and Figure 3 is a diagram of the frequency spectrum of the VHD signal and discrimination signal. Figure 4 is the same AH
An output spectrum diagram of the FM demodulator during FM reproduction during D reproduction, and FIG. 5 is a frequency spectrum diagram of the AHD signal and discrimination signal. A... Playback device, 1... Disc-shaped recording medium,
5...AHD system signal reproducing circuit, 6...VHD system signal reproducing circuit, 9, 10...reading means, 11,
12, 13...Switching means.
Claims (1)
た後ＦＭ変調して高密度に記録したＡＨＤ方式信
号記録部と、映像・音声信号をＦＭ変調して高密
度に記録したＶＨＤ方式信号記録部を共に有する
デイスク状記録媒体と、 前記ＡＨＤ方式信号記録部及びＶＨＤ方式信号
記録部をそれぞれ再生するＡＨＤ方式信号再生回
路とＶＨＤ方式信号再生回路とを有する再生装置
とからなり、 デイスク状記録媒体のＡＨＤ方式及びＶＨＤ方
式信号記録部の各信号読出し部に各方式を判別す
るための判別信号が記録され、 再生装置が、前記判別信号を読み取る読取手段
と、この読取手段からの出力を受けて、再生回路
をＡＨＤ方式信号再生回路かＶＨＤ方式信号再生
回路のいずれかに切り換える切換手段とを具備し
てなるビデオデイスク再生装置。[Claims for Utility Model Registration] On the same surface, an AHD signal recording section in which video and audio signals are digitally converted and then FM modulated and recorded at high density, and a video and audio signal is FM modulated and recorded at high density. A disk-shaped recording medium both having a recorded VHD signal recording section; and a reproducing device having an AHD signal reproducing circuit and a VHD signal reproducing circuit for reproducing the AHD signal recording section and the VHD signal recording section, respectively. A discrimination signal for discriminating each format is recorded in each signal reading section of the AHD format signal recording section and a VHD format signal recording section of the disk-shaped recording medium, and the reproduction device includes a reading means for reading the discrimination signal, and this reading means. 1. A video disc playback device comprising switching means for switching a playback circuit to either an AHD system signal playback circuit or a VHD system signal playback circuit in response to an output from the video disc playback device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11311187U JPS6418428U (en) | 1987-07-22 | 1987-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11311187U JPS6418428U (en) | 1987-07-22 | 1987-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6418428U true JPS6418428U (en) | 1989-01-30 |
Family
ID=31352663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11311187U Pending JPS6418428U (en) | 1987-07-22 | 1987-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6418428U (en) |
-
1987
- 1987-07-22 JP JP11311187U patent/JPS6418428U/ja active Pending
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