JPS63275280A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPS63275280A
JPS63275280A JP11124487A JP11124487A JPS63275280A JP S63275280 A JPS63275280 A JP S63275280A JP 11124487 A JP11124487 A JP 11124487A JP 11124487 A JP11124487 A JP 11124487A JP S63275280 A JPS63275280 A JP S63275280A
Authority
JP
Japan
Prior art keywords
video signal
input
signal
input terminal
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
Application number
JP11124487A
Other languages
Japanese (ja)
Inventor
Shingo Ito
慎吾 伊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC IC Microcomputer Systems Co Ltd
Original Assignee
NEC IC Microcomputer Systems Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC IC Microcomputer Systems Co Ltd filed Critical NEC IC Microcomputer Systems Co Ltd
Priority to JP11124487A priority Critical patent/JPS63275280A/en
Publication of JPS63275280A publication Critical patent/JPS63275280A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To automatize input switching by giving a switching part which automatically switches a broadcasting radio wave reception part and a video signal input part in accordance with the presence and absence of the input of a video signal. CONSTITUTION:When a picture signal is inputted from VTRv connected with a video signal input terminal 7 in the case of receiving the broadcasting radio wave transmitted from an antenna (a), a video signal detection part 2 detects the presence of the picture signal, transmits a control signal 8 to an input signal switching part 4 and switches the input signal to the picture signal from the video signal input terminal 7. When the picture signal is not inputted to the video signal input terminal 7, the picture signal obtained with the reception of the broadcasting radio wave from the antenna (a) is automatically displayed in a picture display part 6. Thus, input switching can automatically be executed by the presence and absence of the picture signal inputted to the video signal input terminal 7.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、テレビシロン受像機に関し、特にビデオ信号
入力回路を有するテレビジョン受像機に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a television receiver, and more particularly to a television receiver having a video signal input circuit.

〔従来の技術〕[Conventional technology]

従来のテレビジョン受像機では、放送電波を受信してみ
るかビデオ信号入力をみるかの入力切り替えは、視聴者
がテレビジョン受像機に付属したキーを操作し、手動で
切り替えるようになっていた。With conventional television receivers, viewers had to manually switch between receiving broadcast waves and video signal input by operating the keys attached to the television receiver. .

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来のテレビジョン受像機は、それに接続され
ているＶＴＲ等の映像を見るためには、そのつど手動で
入力切り替え操作を行う必要があるという欠点がある。The above-described conventional television receiver has a drawback in that it is necessary to manually switch inputs each time in order to view images from a VTR or the like connected thereto.

本発明の目的は、以上の欠点を解決し、入力切り替えを
自動的に行うテレビジョン受像機を提供することにある
。An object of the present invention is to solve the above-mentioned drawbacks and provide a television receiver that automatically switches inputs.

〔問題点を解決するための手段〕[Means for solving problems]

本発明のテレビジョン受像機は、放送電波受信部分とビ
デオ信号入力部分とを有するテレビジョン受像機におい
て、ビデオ信号が入力されているか否かに応じて前記放
送電波受信部分と前記ビデオ信号入力部分との切り替え
を自動的に行う切り替え部分を含んでいる。The television receiver of the present invention has a broadcast wave receiving part and a video signal input part, and the television receiver has a broadcast wave receiving part and a video signal input part depending on whether or not a video signal is input. Contains a switching part that automatically switches between

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は、本発明の一実施例のブロック図である。ｔは
本発明の一実施例であるテレビジョン受像機、ａは空中
線、ＶはＶＴＲである。放送電波受信部分１は、空中線
ａから送られてきた放送電波を受信して画像信号を出力
する部分である。ビデオ信号検出部分２は、ビデオ信号
入力端子７から入力される画像信号の有り無しを検出し
、入力信号を切り替える為の制御信号８を出力する。ビ
デオ信号入力部分３は、ビデオ信号入力端子７から入力
される画像信号を入力する部分である。入力信号切り替
え部分４は、入力信号を切り替える為の制御信号８によ
り、放送電波受信部分１からの画像信号とビデオ信号入
力部分３からの画像信号とを切り替える。画像信号処理
部分５は、画像信号を処理し、画像表示部分６により画
像を表示する。FIG. 1 is a block diagram of one embodiment of the present invention. t is a television receiver which is an embodiment of the present invention, a is an antenna, and V is a VTR. The broadcast wave receiving section 1 is a section that receives broadcast waves sent from the antenna a and outputs an image signal. The video signal detection section 2 detects the presence or absence of an image signal input from the video signal input terminal 7, and outputs a control signal 8 for switching the input signal. The video signal input section 3 is a section into which an image signal input from the video signal input terminal 7 is input. The input signal switching section 4 switches between the image signal from the broadcast wave receiving section 1 and the image signal from the video signal input section 3 in response to a control signal 8 for switching the input signal. The image signal processing section 5 processes the image signal and displays the image using the image display section 6.

空中線ａから送られてきている放送電波を受信している
場合、ビデオ信号入力端子７に接続されているＶＴＲｖ
から画像信号が入力されると、ビデオ信号検出部分２は
画像信号有りを検出し、入力信号切り替え部分４に制御
信号８を送り、入力信号を自動的にビデオ信号入力端子
７からの画像信号に切り替える。つまり、空中線ａから
の放送電波を受信中にビデオ信号入力端子７に画像信号
が入力されると、画像表示部分６は、ビデオ信号入力端
子７に入力されている画像信号を自動的に表示する。When receiving broadcast waves sent from antenna a, the VTRv connected to video signal input terminal 7
When an image signal is input from the video signal input terminal 7, the video signal detection section 2 detects the presence of the image signal, sends a control signal 8 to the input signal switching section 4, and automatically changes the input signal to the image signal from the video signal input terminal 7. Switch. In other words, when an image signal is input to the video signal input terminal 7 while receiving broadcast waves from the antenna a, the image display section 6 automatically displays the image signal input to the video signal input terminal 7. .

また、ビデオ信号入力端子７に画像信号が入力されなく
なると、画像表示部分６には空中線ａからの放送電波を
受信して得た画像信号が自動的に表示される。Furthermore, when the image signal is no longer input to the video signal input terminal 7, the image display portion 6 automatically displays an image signal obtained by receiving broadcast waves from the antenna a.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明のテレビジョン受像機は、ビ
デオ信号入力端子に入力される画像信号の有り無しで入
力切り替えを自動的に行なうことができる効果がある。As explained above, the television receiver of the present invention has the advantage of being able to automatically switch inputs depending on whether or not an image signal is input to the video signal input terminal.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明の一実施例のブロック図である。 １・・・放送電波受信部分、２・・・ビデオ信号検出部
分、３・・・ビデオ信号入力部分、４・・・入力信号切
り替え部分、５・・・画像信号処理部分、６・・・画像
表示部分、７・・・ビデオ信号入力端子、８・・・制御
信号。FIG. 1 is a block diagram of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Broadcast radio wave receiving part, 2... Video signal detection part, 3... Video signal input part, 4... Input signal switching part, 5... Image signal processing part, 6... Image Display portion, 7... Video signal input terminal, 8... Control signal.

Claims (1)

【特許請求の範囲】[Claims] 放送電波受信部分とビデオ信号入力部分とを有するテレ
ビジョン受像機において、ビデオ信号が入力されている
か否かに応じて前記放送電波受信部分と前記ビデオ信号
入力部分との切り替えを自動的に行う切り替え部分を含
むことを特徴とするテレビジョン受像機。In a television receiver having a broadcast wave receiving section and a video signal input section, switching automatically switches between the broadcast wave receiving section and the video signal input section depending on whether or not a video signal is being input. A television receiver comprising:
JP11124487A 1987-05-06 1987-05-06 Television receiver Pending JPS63275280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11124487A JPS63275280A (en) 1987-05-06 1987-05-06 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11124487A JPS63275280A (en) 1987-05-06 1987-05-06 Television receiver

Publications (1)

Publication Number Publication Date
JPS63275280A true JPS63275280A (en) 1988-11-11

Family

ID=14556238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11124487A Pending JPS63275280A (en) 1987-05-06 1987-05-06 Television receiver

Country Status (1)

Country Link
JP (1) JPS63275280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049095A (en) * 1990-04-26 1992-01-13 Sharp Corp Video display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049095A (en) * 1990-04-26 1992-01-13 Sharp Corp Video display device

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