JP3114762B2 - TV tuner for display monitor - Google Patents
TV tuner for display monitorInfo
- Publication number
- JP3114762B2 JP3114762B2 JP04085997A JP8599792A JP3114762B2 JP 3114762 B2 JP3114762 B2 JP 3114762B2 JP 04085997 A JP04085997 A JP 04085997A JP 8599792 A JP8599792 A JP 8599792A JP 3114762 B2 JP3114762 B2 JP 3114762B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- display monitor
- tuner
- video
- switch
- 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.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明はマイクロコンピュータ
などのディスプレーモニタ用ＴＶチューナに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TV tuner for a display monitor such as a microcomputer.
【０００２】[0002]
【従来の技術】マイクロコンピュータは各種のデータ処
理を行うＣＰＵのある本体装置と、データ処理結果を表
示するディスプレーモニタとを主要構成としている。2. Description of the Related Art A microcomputer mainly includes a main unit having a CPU for performing various data processing and a display monitor for displaying a result of the data processing.
【０００３】[0003]
【発明が解決しようとする課題】前記ディスプレーモニ
タにＴＶ映像を映したい場合がある。しかしながら、Ｔ
Ｖ映像信号のクロマ回路からの出力信号をそのままマイ
クロコンピュータのディスプレーモニタに送出してもマ
イクロコンピュータ用ディスプレーモニタとＴＶ用表示
装置の走査周波数に相違があるので、映像は映らない。In some cases, it is desired to display a TV image on the display monitor. However, T
Even if the output signal from the chroma circuit of the V video signal is sent as it is to the display monitor of the microcomputer, no image is displayed because there is a difference in the scanning frequency between the display monitor for the microcomputer and the display device for the TV.
【０００４】本発明はディプレーモニタでも、ＴＶ映像
が映し出されるディスプレーモニタ用ＴＶチューナを提
供するのが目的である。An object of the present invention is to provide a TV tuner for a display monitor on which a TV image is displayed even on a display monitor.
【０００５】[0005]
【課題を解決するための手段】本発明のディスプレーモ
ニタ用ＴＶチューナは、ＴＶチャンネルを選択し、その
信号を増幅する選局用チューナと、前記選局用チューナ
よりの出力信号を受けて、これを映像中間増幅・映像検
波・映像増幅等の信号処理を行う中間周波増幅部と、前
記中間周波増幅部よりの映像出力信号を受けて、Ｒ．
Ｇ．Ｂ原色信号等を再生するクロマ回路と、前記クロマ
回路からの出力信号を受け、これをマイクロコンピュー
タのディスプレーモニタのＲ．Ｇ．Ｂ原色及び水平同期
信号に変換させるＨレート変換回路と、マイクロコンピ
ュータから出力されるＲ．Ｇ．Ｂ原色及び水平同期信号
を受ける入力端子部と、前記Ｈレート変換回路からの信
号と前記入力端子部より入力された信号とを切替える切
替スイッチと、前記切替スイッチに接続され、前記切替
スイッチによって切替えられた信号をマイクロコンピュ
ータのディスプレーモニタに出力する出力端子部とを具
備し、電源装置として前記ディスプレーモニタの電源を
用いることを特徴とする。A display monitor TV tuner according to the present invention selects a TV channel, amplifies the signal, and receives an output signal from the tuning tuner. the receiving and intermediate frequency amplifying unit for performing signal processing such as video intermediate amplifier, video detector and video amplifier, a video output signal from said intermediate frequency amplifying unit, R.
G. FIG. A chroma circuit for reproducing the B primary color signal and the like, and an output signal from the chroma circuit, which is supplied to an R.B. G. FIG. An H rate conversion circuit for converting the signal into a primary synchronization signal and a horizontal synchronization signal; G. FIG. An input terminal for receiving the B primary color and the horizontal synchronizing signal, a switch for switching between a signal from the H rate conversion circuit and a signal input from the input terminal, and a switch connected to the switch and switched by the switch Micro-computer
And an output terminal unit for outputting to a display monitor over data, the power of the display monitor as a power supply
It is characterized by using .
【０００６】[0006]
【作用】上記の構成としたので、マイクロコンピュータ
の操作の途中においても、ＴＶ映像を見たい場合は、切
替スイッチの操作で受信したＴＶ信号の走査周波数を変
換した信号がディスプレーモニタに出力され、ＴＶ映像
を見ることができる。With the above configuration, if the user wants to watch a TV image even during the operation of the microcomputer, a signal obtained by converting the scanning frequency of the TV signal received by operating the changeover switch is output to the display monitor. You can watch TV images.
【０００７】[0007]
【実施例】本発明の一実施例を説明すると、図１に示す
ようにアンテナからのＴＶ入力信号を受けて、これを受
信しようとする放送電波信号に同調・増幅する選局用の
チューナ１と、チューナ１からの出力信号を受け、これ
を映像中間増幅・映像検波・映像増幅等の信号処理を行
う中間周波増幅部２と、中間周波増幅部２よりの映像出
力信号を受けて、これをマイクロコンピュータのディス
プレーモニタのＲ．Ｇ．Ｂ原色及び水平同期信号に変換
させるＨレート変換回路４で、主要回路を構成する。さ
らに、ＴＶ信号映像とマイクロコンピュータ出力表示の
切替スイッチ５を設ける。ディスプレーモニタとマイク
ロコンピュータの本体装置（いづれも図示省略）とを、
それぞれ信号ケーブルで接続するための端子部６，７と
をそれぞれ設ける。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described. As shown in FIG. 1, a tuner 1 for selecting a tuner which receives a TV input signal from an antenna and tunes and amplifies it to a broadcast radio signal to be received. Receiving an output signal from the tuner 1 and performing an image processing such as video intermediate amplification, video detection, and video amplification, and an image output signal from the intermediate frequency amplification unit 2. Of the display monitor of the microcomputer. G. FIG. The main circuit is constituted by the H rate conversion circuit 4 for converting the signal into the B primary color and the horizontal synchronizing signal. Further, a changeover switch 5 for displaying a TV signal image and a microcomputer output is provided. The display monitor and the main unit of the microcomputer (both not shown)
Terminal portions 6 and 7 for connection with signal cables are provided.
【０００８】上記のような構成にして、マイクロコンピ
ュータ出力表示からＴＶ信号受像への切替は切替スイッ
チ５の簡単な操作で可能となり、ＴＶ信号のＲ．Ｇ．Ｂ
信号と水平同期信号とはＨレート変換回路により、マイ
クロコンピュータのディスプレーモニタのＲ．Ｇ．Ｂ信
号と水平同期信号に変換させることにより、ＴＶ映像を
マイクロコンピュータのディスプレーモニタに表示する
ことができる。With the above configuration, the switching from the microcomputer output display to the TV signal reception can be performed by a simple operation of the changeover switch 5, and the R.V. G. FIG. B
The signal and the horizontal synchronizing signal are converted by the H.R. conversion circuit to the R.R. signal of the display monitor of the microcomputer. G. FIG. By converting the signal into a B signal and a horizontal synchronizing signal, a TV image can be displayed on a display monitor of a microcomputer.
【０００９】また、ＴＶ映像用ＣＲＴ及びその電源のフ
ライバックトランス等の電源装置はマイクロコンピュー
タ用ディスプレーモニタの流用により不要となるので、
全体の装置の小型化・経済化を図ることができる。In addition, a power supply device such as a CRT for a TV image and a flyback transformer for the power supply of the TV becomes unnecessary by using a display monitor for a microcomputer.
The size and economy of the entire device can be reduced.
【００１０】[0010]
【発明の効果】以上説明したように本発明のディスプレ
ーモニタ用ＴＶチューナは、選局用のチューナと、中間
周波増幅部と、クロマ回路と、クロマ回路からの出力信
号を受け、これをマイクロコンピュータのディスプレー
モニタのＲ．Ｇ．Ｂ原色及び水平同期信号に変換させる
Ｈレート変換回路と、ＴＶ映像とマイクロコンピュータ
出力表示との切替スイッチを主要構成としたので、マイ
クロコンピュータ出力表示からＴＶ映像への切替が簡単
にできると共に、電源装置の流用による簡素化・全体装
置の小型化・経済化を図ることができる。As described above, the TV tuner for a display monitor according to the present invention receives a tuner for tuning, an intermediate frequency amplifying section, a chroma circuit, and an output signal from the chroma circuit, and transmits the received signal to the microcomputer. Display monitor R. G. FIG. The main components are an H-rate conversion circuit for converting into a B primary color and a horizontal synchronizing signal, and a switch for switching between a TV image and a microcomputer output display. It is possible to achieve simplification by using the apparatus, downsizing of the entire apparatus, and economy.
【００１１】尚、上記説明において、ＴＶ音声回路装置
についてはこれを省略したが、必要に応じて中間周波増
幅部よりこれを付加することは容易にできる。In the above description, the TV audio circuit device is omitted, but it can be easily added from the intermediate frequency amplifier as required.
【図１】本発明の実施例の要部を示すブロック図であ
る。FIG. 1 is a block diagram showing a main part of an embodiment of the present invention.
１ 選局用チューナ ２ 中間周波増幅部 ３ クロマ回路 ４ Ｈレート変換回路 ５ 切替スイッチ ６，７ 端子板 DESCRIPTION OF SYMBOLS 1 Tuner for channel selection 2 Intermediate frequency amplification part 3 Chroma circuit 4 H rate conversion circuit 5 Changeover switch 6, 7 Terminal board
Claims (1)
幅する選局用チューナと、 前記選局用チューナよりの出力信号を受けて、これを映
像中間増幅・映像検波・映像増幅等の信号処理を行う中
間周波増幅部と、 前記中間周波増幅部よりの映像出力信号を受けて、Ｒ．
Ｇ．Ｂ原色信号等を再生するクロマ回路と、 前記クロマ回路からの出力信号を受け、これをマイクロ
コンピュータのディスプレーモニタのＲ．Ｇ．Ｂ原色及
び水平同期信号に変換させるＨレート変換回路と、 マイクロコンピュータから出力されるＲ．Ｇ．Ｂ原色及
び水平同期信号を受ける入力端子部と、 前記Ｈレート変換回路からの信号と前記入力端子部より
入力された信号とを切替える切替スイッチと、 前記切替スイッチに接続され、前記切替スイッチによっ
て切替えられた信号をマイクロコンピュータのディスプ
レーモニタに出力する出力端子部とを具備し、電源装置
として前記ディスプレーモニタの電源を用いることを特
徴とするディスプレーモニタ用ＴＶチューナ。1. A tuning tuner for selecting a TV channel and amplifying the signal, receiving an output signal from the tuning tuner, and performing signal processing such as video intermediate amplification, video detection, and video amplification. receiving the intermediate frequency amplifying unit, a video output signal from said intermediate frequency amplifying unit for performing, R.
G. FIG. A chroma circuit for reproducing a primary color signal, etc .; G. FIG. An H rate conversion circuit for converting the signal into a primary synchronization signal and a horizontal synchronization signal; G. FIG. An input terminal for receiving a B primary color and a horizontal synchronization signal; a switch for switching between a signal from the H rate conversion circuit and a signal input from the input terminal; a switch connected to the switch and switched by the switch The signal obtained is displayed on the microcomputer display.
A power supply device , comprising:
A TV tuner for a display monitor , wherein a power source of the display monitor is used as the power supply .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04085997A JP3114762B2 (en) | 1992-03-09 | 1992-03-09 | TV tuner for display monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04085997A JP3114762B2 (en) | 1992-03-09 | 1992-03-09 | TV tuner for display monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05249937A JPH05249937A (en) | 1993-09-28 |
| JP3114762B2 true JP3114762B2 (en) | 2000-12-04 |
Family
ID=13874299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04085997A Expired - Lifetime JP3114762B2 (en) | 1992-03-09 | 1992-03-09 | TV tuner for display monitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3114762B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554383B2 (en) | 1996-07-12 | 2003-04-29 | Canon Kabushiki Kaisha | Liquid ejecting head and head cartridge capable of adjusting energy supplied thereto, liquid ejecting device provided with the head and head cartridge, and recording system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002163035A (en) * | 2000-11-24 | 2002-06-07 | Nec Yonezawa Ltd | Notebook type personal computer, extension unit, and method of using extension unit |
-
1992
- 1992-03-09 JP JP04085997A patent/JP3114762B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554383B2 (en) | 1996-07-12 | 2003-04-29 | Canon Kabushiki Kaisha | Liquid ejecting head and head cartridge capable of adjusting energy supplied thereto, liquid ejecting device provided with the head and head cartridge, and recording system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05249937A (en) | 1993-09-28 |
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