JP2611281B2 - Teletext receiver - Google Patents

Teletext receiver

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Publication number
JP2611281B2
JP2611281B2 JP30191387A JP30191387A JP2611281B2 JP 2611281 B2 JP2611281 B2 JP 2611281B2 JP 30191387 A JP30191387 A JP 30191387A JP 30191387 A JP30191387 A JP 30191387A JP 2611281 B2 JP2611281 B2 JP 2611281B2
Authority
JP
Japan
Prior art keywords
teletext
signal
receiving
external video
switching circuit
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
Application number
JP30191387A
Other languages
Japanese (ja)
Other versions
JPH01143576A (en
Inventor
俊英 林
義和 小鷹
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP30191387A priority Critical patent/JP2611281B2/en
Publication of JPH01143576A publication Critical patent/JPH01143576A/en
Application granted granted Critical
Publication of JP2611281B2 publication Critical patent/JP2611281B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は外部ビデオ信号を入力し得る様にした文字放
送受像装置に関する。
Description: TECHNICAL FIELD The present invention relates to a teletext receiving apparatus capable of inputting an external video signal.

〔発明の概要〕[Summary of the Invention]

本発明は外部ビデオ信号を入力し得る様にした文字放
送受像装置に関し、外部ビデオ入力端子に供給される外
部ビデオ入力信号と、内蔵したチューナからの通常のテ
レビジョン信号及び文字放送信号等の内部ビデオ信号と
を切換回路で切換受像し得る様にした文字放送受像装置
に於いて、外部ビデオ入力信号の受像時に文字放送を選
択した場合に、切換回路を内部ビデオ側に変更すると共
に文字放送受像画面中に、この文字放送が属するチャン
ネル番号を表示するようにし、どのチャンネルの文字放
送をみているかが解る様にしたものである。
The present invention relates to a teletext receiving apparatus capable of inputting an external video signal, and relates to an external video input signal supplied to an external video input terminal and an internal television signal and a teletext signal from a built-in tuner. In a teletext receiving apparatus in which a video signal and a video signal can be switched and received by a switching circuit, when the teletext is selected at the time of receiving an external video input signal, the switching circuit is changed to the internal video side and the teletext receiving is performed. The channel number to which the teletext belongs is displayed on the screen, so that it is possible to understand which channel the teletext is being watched on.

〔従来の技術〕[Conventional technology]

近時、テレビジョン放送電波の時間的な隙間を利用し
て文字放送番組を送信する文字放送が行なわれている。
この文字放送番組は各種ニュース、天気予報、交通情
報、株式市況等の生活情報の他に字幕スーパー番組、ク
イズ番組等の多種情報をハイブリッド方式で放送してい
る。この様な文字放送信号、即ち、文字、図形等の画素
パターンデータはデジタル信号に変換されると共に番号
群を表すマガジン番号、番組番号及び頁番号を示す制御
信号を付加し、大容量の記憶手段に格納する、更にこの
格納データに送信に必要な同期符号、誤り訂正符号等を
付加して、多重化装置でこれら文字放送信号をテレビジ
ョン信号の垂直帰線消去期間に重畳する。(最初の奇数
フィールドでは第14の水平期間(H)、第15H、第16H、
及び第21Hに次のフィールドの偶数フィールドでは第277
H、第287H、第279H、及び第284Hに重畳される。)この
様な文字放送信号は送信装置より電波として送信され
る。文字放送受像装置ではテレビ受信回路で選局検波し
た映像信号を文字信号デコーダに供給して垂直帰線消去
期間に重畳した文字信号を映像信号から分離し、希望の
文字放送番組を例えば遠隔制御用の操作手段で選択し
て、文字信号をデコードしこのデコード信号を文字信号
発生器に供給して文字信号は陰極線管上に表示する様に
なされている。この様な文字放送受像装置の詳細は本願
出願人が先に提案した特開昭59−165582号公報に開示さ
れている。
2. Description of the Related Art In recent years, a text broadcast for transmitting a text broadcast program using a time gap of a television broadcast wave has been performed.
This teletext program broadcasts various kinds of information such as a subtitle super program, a quiz program, and the like in addition to living information such as various news, weather forecasts, traffic information, stock market conditions, and the like in a hybrid manner. Such a teletext signal, that is, pixel pattern data of characters, figures, etc., is converted into a digital signal and a control signal indicating a magazine number, a program number, and a page number representing a number group is added, and a large-capacity storage means is provided. In addition, a synchronization code, an error correction code, and the like necessary for transmission are added to the stored data, and these teletext signals are superimposed on the vertical blanking period of the television signal by the multiplexer. (In the first odd field, the 14th horizontal period (H), 15H, 16H,
And the 277th in the even field of the next field in the 21H
H, 287H, 279H, and 284H. ) Such a teletext signal is transmitted as radio waves from the transmitting device. In a teletext receiver, a video signal selected and detected by a television receiving circuit is supplied to a text signal decoder to separate a text signal superimposed in a vertical blanking period from a video signal, and a desired teletext program can be transmitted to a remote control, for example. , The character signal is decoded, and the decoded signal is supplied to a character signal generator so that the character signal is displayed on a cathode ray tube. The details of such a teletext receiving apparatus are disclosed in Japanese Patent Application Laid-Open No. 59-165852 previously proposed by the present applicant.

又、上述の文字放送受像装置は外部ビデオ信号も入力
出来る外部ビデオ入力端子を有し、遠隔制御用の操作手
段で外部ビデオ信号受信モード及び文字放送受信モード
に切換制御出来る様になされていた。
Further, the above-mentioned teletext receiving apparatus has an external video input terminal to which an external video signal can also be inputted, and can be switched to an external video signal receiving mode and a teletext receiving mode by operating means for remote control.

〔発明が解決しようとする問題点〕[Problems to be solved by the invention]

叙上の文字放送受像装置として、受像機に設けたキー
或は遠隔制御用操作手段で、外部ビデオ入力信号受信モ
ードから遠隔制御用の操作手段で文字放送受信モードに
切換え、且つ、画面表示キーを押圧すると、例えば、
“VIDEO 1"と表示される。この様な表示では文字放送が
重畳されているテレビ放送のチャンネル番号が解らず
今、何チャンネルの文字放送をみているのか解らない問
題があった。
As the teletext receiving device described above, a key or remote control operating means provided on the receiver is used to switch from the external video input signal receiving mode to the teletext receiving mode by the remote control operating means, and a screen display key is provided. Pressing, for example,
“VIDEO 1” is displayed. In such a display, there is a problem that the channel number of the television broadcast on which the teletext is superimposed is not known, and it is difficult to know what channel of the teletext is currently being viewed.

本発明は叙上の問題点に鑑みなされたもので、その目
的とするところは、外部ビデオ信号受信モードから文字
放送受信モードに切換えて画面表示させたとき、現在受
信中の文字放送局のチャンネル番号を表示させる様にし
た文字放送受像装置を提供せんとするものである。
The present invention has been made in view of the above-described problems, and has as its object the purpose of switching from an external video signal receiving mode to a teletext receiving mode and displaying a screen to display a channel of a teletext station currently being received. It is an object of the present invention to provide a teletext receiver that displays numbers.

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

本発明の文字放送受像装置はその1例を第1図に示す
様に外部ビデオ入力端子T1に供給される外部ビデオ入力
信号と、内蔵したチューナからの通常のテレビジョン信
号及び文字放送信号等の内部ビデオ信号とを切換回路
(8)で切換受像し得る様にした文字放送受像装置
(1)に於いて、外部ビデオ入力信号の受像時に文字放
送を選択した場合に、切換回路(8)を内部ビデオ側に
変更すると共に文字放送受像画面(19)中に、この文字
放送が属するチャンネル番号を表示させる様にしたもの
である。
Teletext receiving apparatus of the present invention is an external video input signal supplied to the external video input terminal T 1 as shown the example in Figure 1, normal television signal from the built-in tuner and teletext signals, etc. In a teletext receiving apparatus (1) which can switch and receive an internal video signal by a switching circuit (8), when a teletext is selected at the time of receiving an external video input signal, the switching circuit (8) Is changed to the internal video side, and the channel number to which the teletext belongs is displayed on the teletext receiving screen (19).

〔作 用〕(Operation)

本発明の文字放送受像装置によれば外部ビデオ信号の
受像時に文字放送になると文字放送受像画面中に文字放
送の属するチャンネル番号が表示されるので、どの局の
文字放送をみているかを直ちに判断することが可能とな
る。
According to the teletext receiving apparatus of the present invention, when a teletext is received when an external video signal is received, the channel number to which the teletext belongs is displayed on the teletext receiving screen, so it is immediately determined which station is watching the teletext. It becomes possible.

〔実施例〕〔Example〕

以下、本発明の文字放送受像装置の一実施例を第1図
乃至第3図について説明する。
An embodiment of the teletext receiving apparatus of the present invention will be described below with reference to FIGS.

第1図に於いて、文字放送受像装置(1)はテレビジ
ョン受像機中に文字放送デコーダを組み込んだものであ
り、通常のテレビジョン信号はアンテナ(3)でキャッ
チされチューナ(4)で選局され、映像中間周波増幅回
路(5)で映像信号と音声信号に分離され、映像信号は
映像検波回路(6)で検波され外部ビデオ信号、文字放
送とテレビジョン放送の映像及び音声信号を切換える電
子スイッチ等から成る切換回路(8)の第1のスイッチ
SW1→映像色信号処理回路(9)に供給されて、三原色
赤色信号R緑色信号G青色信号Bを切換えるRGB切換回
路(10)を通じてCRT等の表示手段(11)に供給して、
テレビジョン画面を表示手段(11)上に表示する。音声
信号は音声検波回路(7)→切換回路(8)の第2のス
イッチSW2を通してスピーカ(15)から放音される。テ
レビジョン信号中に文字放送信号が含まれている場合は
映像検波回路(6)及び音声検波回路(7)で得られた
映像信号及び音声信号は文字信号デコーダを含む文字信
号プロセッサ(14)に供給され、映像信号から文字及び
図形信号をデコードする。勿論、これら文字放送番組内
容は遠隔制御用操作手段(17)で選択され、受信部(1
2)で受信した選択指令データをマイクロコンピュータ
(13)に供給し、チューナ(4)及び文字信号プロセッ
サ(14)を動作させる様になされている。
In FIG. 1, a teletext receiver (1) has a teletext decoder incorporated in a television receiver, and a normal television signal is caught by an antenna (3) and selected by a tuner (4). The video signal is separated by a video intermediate frequency amplification circuit (5) into a video signal and an audio signal, and the video signal is detected by a video detection circuit (6) and switched between an external video signal, and a video and audio signal of teletext and television broadcast. First switch of switching circuit (8) comprising an electronic switch or the like
SW 1 is supplied to a video color signal processing circuit (9) and supplied to a display means (11) such as a CRT through an RGB switching circuit (10) for switching between the three primary color red signals R green signals G blue signals B,
A television screen is displayed on the display means (11). The audio signal is output from the speaker (15) through the sound detection circuit (7) → the second switch SW 2 of the switching circuit (8). When a teletext signal is included in the television signal, the video signal and the audio signal obtained by the video detection circuit (6) and the audio detection circuit (7) are sent to a text signal processor (14) including a text signal decoder. The supplied character and graphic signals are decoded from the video signal. Of course, these teletext program contents are selected by the remote control operation means (17), and the receiving section (1) is selected.
The selection command data received in 2) is supplied to the microcomputer (13) to operate the tuner (4) and the character signal processor (14).

デコードされた文字信号はアナログのR.G.Bの原色信
号に成され、R.G.B切換回路(10)に供給され、文字信
号プロセッサ(14)からの映像制御信号(14v)によっ
て文字及び図形が表示手段(11)上に表示される。又音
符の表示に従ってメロデーを流す場合とか、付加音等は
文字信号プロセッサ(14)内のデコーダで同様にデコー
ドされて切換回路(8)に供給され、文字信号プロセッ
サ(14)からの音声制御信号(14s)でスピーカ(15)
より放音される。又、テレビジョン放送画面に文字放送
画面をスーパインポースする場合は文字信号プロセッサ
(14)からのRGB信号と映像色信号処理回路(9)から
のRGB信号を合成して表示手段(11)上に表示される。
The decoded character signal is converted into an analog RGB primary color signal, supplied to an RGB switching circuit (10), and a character and a figure are displayed by a video control signal (14v) from a character signal processor (14). Displayed above. Also, when a melody is played according to the display of musical notes, additional sounds and the like are similarly decoded by a decoder in the character signal processor (14) and supplied to the switching circuit (8), and a voice control signal from the character signal processor (14) is output. (14s) speaker (15)
More sound is emitted. When superimposing a teletext screen on a television broadcast screen, the RGB signal from the text signal processor (14) and the RGB signal from the video color signal processing circuit (9) are combined and displayed on the display means (11). Will be displayed.

切換回路(8)の第1及び第2のスイッチSW1、SW2
は外部ビデオ入力端子T1から外部ビデオ入力信号のビデ
オ及び音声信号が供給され、遠隔制御用操作手段(17)
の操作キー(17a)の押圧によって、コマンドデータが
受信部(12}に伝送され、マイクロコンピュータ(13)
はこのコマンドデータを受けて、文字プロセッサー(1
4)を制御すると共に文字信号発生装置(16)をも制御
する。(18)は文字信号発生回路(16)内に組み込まれ
た画素表示用メモリであり、文字信号発生回路(16)で
発生されたチャンネル番号等の文字データはRGB切換回
路(10)と表示手段(11)間に供給され、R.G.B切換回
路(10)の出力に重畳される。文字プロセッサー(14)
は遠隔制御用操作手段の指令に基づいて映像制御信号
(14v)及び音声制御信号(14s)を発生し、第1のスイ
ッチSW1を外部ビデオ入力信号受信モードとテレビジョ
ン信号受信モード並に文字放送受信モードに切換制御
し、第2のスイッチSW2を外部音声入力信号受信モード
とテレビジョン信号音声受信モード並に文字放送用音声
信号受信モードに切換制御する。
The switching circuit (8) switch SW 1 first and second of, SW 2 is supplied with video and audio signals of external video input signal from the external video input terminal T 1, the remote control operation means (17)
When the operation key (17a) is pressed, the command data is transmitted to the receiving unit (12 mm) and the microcomputer (13)
Receives the command data and sends it to the character processor (1
4) and also controls the character signal generator (16). Reference numeral (18) denotes a pixel display memory incorporated in the character signal generation circuit (16). Character data such as a channel number generated by the character signal generation circuit (16) is stored in an RGB switching circuit (10) and a display means. It is supplied between (11) and superimposed on the output of the RGB switching circuit (10). Character processor (14)
Characters based on a command of the remote control operation means generates an image control signal (14v) and the audio control signal (14s), a first switch SW 1 to the external video input signal receiving mode and a television signal reception mode parallel and switching control to the broadcast reception mode, and switching control to the teletext audio signal receiving mode to the second switch SW 2 external audio input signal receiving mode and a television signal audio reception mode parallel.

叙上の構成に於ける、本発明の動作を第2図のフロー
チャートと第3図の表示例によって説明する。
The operation of the present invention in the above configuration will be described with reference to the flowchart of FIG. 2 and a display example of FIG.

第2図のフローチャートで第1のステップST1ではマ
イクロコンピュータ(13)は文字放送キーが、例えば遠
隔制御用操作手段(17)の操作キー群(17a)の中から
押圧されたか否かの判断を常に行なっている。文字放送
キーが押圧されていなければ他のキーがセンスされ(第
2ステップST2)て第1のステップST1に戻す動作が行な
われる。文字放送キーが押圧された“YES"状態であれ
ば、文字放送受像装置(1)のモードが何の状態である
かを切換回路(8)の制御状態からマイクロコンピュー
タ(13)は判断する(第3ステップST3)。このモード
で外部ビデオ入力端子T1から外部ビデオ入力信号が供給
され、第1のスイッチSW1及び第2のスイッチSW2の接片
がEXT.VIDEO端子及びEXT.SOUND端子に接している場合は
マイクロコンピュータ(13)は文字プロセッサー(14)
を介して第1のスイッチSW1の接片をTV端子に切換える
と共に第2のスイッチSW2の接片をTV端子に切換える様
に映像制御信号(14v)と音声制御信号(14s)とをコン
トロールする。同時に文字プロセッサー(14)のR.G.B
切換回路(10)は文字プロセッサー(14)側に切り換っ
て、内部的にはテレビジョン受信モード、表示的には文
字放送受信モードとなっている(第4ステップST4)。
この場合、テレビジョン受信モードにするのは一般にチ
ャンネル表示は何らかの機能と連動して数秒間チャンネ
ル表示や入力ソース表示が出来る様にマイクロコンピュ
ータ(13)内にソフトウェアとして組み込まれているの
で、テレビジョン受信モードにした方が文字放送モード
に切り換えた後にチャンネル表示に切換えるよりは入力
ソースを切り換えることでマイクロコンピュータ(13)
は、今、何チャンネルのテレビジョンの文字放送を受信
しているのかを、いちいち確認する為の動作が省けてマ
イクロコンピュータ(13)の処理を簡単に済ますことが
出来る。この状態で遠隔制御用の操作手段(17)の図面
表示キーが押圧されると、マイクロコンピュータ(13)
は文字信号発生回路(16)を制御し、画像表示メモリ
(18)から現像受信されている文字放送局のチャンネル
番号を取り出して、文字信号発生回路(16)を通してR.
G.B切換回路(10)の出力に供給するために第3図に示
す様に表示手段(11)の文字放送受信画面(19)上にチ
ャンネル番号表示(20)がCH.4の様に表示される(第5
ステップST5)。よって操作者は現在受信中の文字放送
信号のチャンネルが解る。第3ステップST3がテレビジ
ョン受信モードの場合と、第5ステップST5でチャンネ
ル表示がなされた後は第6ステップST6に示す様に文字
放送受信モードに切換える様になされ、第1ステップに
戻ることになる。
A first step ST 1 the microcomputer in the flowchart of FIG. 2 (13) has a teletext key, for example, determination of whether it is pressed out of the operation keys of the remote control operation means (17) (17a) Is always doing. If the teletext key has not been pressed, another key is sensed (second step ST 2 ), and the operation returns to the first step ST 1 . If the teletext key is depressed in the "YES" state, the microcomputer (13) determines the state of the mode of the teletext receiver (1) from the control state of the switching circuit (8) ( Third step ST 3 ). In this mode, when an external video input signal is supplied from the external video input terminal T 1 and the contact of the first switch SW 1 and the second switch SW 2 is in contact with the EXT.VIDEO terminal and the EXT.SOUND terminal Microcomputer (13) is character processor (14)
The first switch SW 1 of the second image control signal so as switch the armature of the switch SW 2 to the TV terminal with switching the armature to the TV terminal via the (14v) and the audio control signal (14s) and controls I do. At the same time the RGB of the character processor (14)
Switching circuit (10) is I conversion cut the character processor (14) side, internally television reception mode, the display manner is in a teletext receiving mode (fourth step ST 4).
In this case, the television receiving mode is generally incorporated in the microcomputer (13) as software so that the channel display and the input source display can be performed for several seconds in conjunction with some function. Microcomputer by switching input source in receiving mode rather than switching to channel display after switching to teletext mode (13)
Can omit the operation for confirming the number of channels of the teletext of the television currently being received, thereby simplifying the processing of the microcomputer (13). In this state, when the drawing display key of the operation means (17) for remote control is pressed, the microcomputer (13)
Controls the character signal generation circuit (16), extracts the channel number of the teletext broadcasting station that has been developed and received from the image display memory (18), and outputs the channel number through the character signal generation circuit (16).
As shown in FIG. 3, a channel number display (20) is displayed on the teletext reception screen (19) of the display means (11) as shown in FIG. 3 so as to supply the output of the GB switching circuit (10). (Fifth
Step ST 5 ). Therefore, the operator knows the channel of the teletext signal currently being received. In the third step ST 3 the television reception mode, after the channel display is made in the fifth step ST 5 made as switches to teletext receiving mode as shown in the sixth step ST 6, the first step I will return.

本例は叙上の如く構成したので、外部ビデオ信号受像
中に文字放送受信モードに切換えたとき文字放送局のチ
ャンネル番号が解るのでどの局の文字放送を視ているか
を知ることが出来る。
Since the present embodiment is configured as described above, when switching to the teletext receiving mode during reception of an external video signal, the channel number of the teletext station is known, so that it is possible to know which station is watching teletext.

尚、上述の実施例では遠隔制御用操作手段(17)に文
字放送切換用の操作キーを設けた場合を説明したが、文
字放送受像装置の筐体に設けた操作キーの場合も適用可
能であり、本発明は上述の実施例に限定されることなく
本発明の要旨を逸脱しない範囲で種々の変形が可能であ
る。
In the above-described embodiment, a case has been described in which the remote control operation means (17) is provided with an operation key for switching to a text broadcast. However, the case of an operation key provided on the housing of the text broadcast receiving apparatus is also applicable. In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

〔発明の効果〕〔The invention's effect〕

本発明の文字放送受像装置によれば、外部ビデオ信号
受信モードから文字放送信号受信モードに切換えたと
き、現在表示手段に表示されている文字放送が何チャン
ネルの文字放送であるかを画面表示キーの押圧で確認す
ることが出来る特長を有する。
According to the teletext receiving apparatus of the present invention, when the mode is switched from the external video signal receiving mode to the teletext signal receiving mode, the screen display key is used to determine the channel of the teletext currently displayed on the display means. It has the feature that it can be confirmed by pressing.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の文字放送受像装置の1実施例を示す系
統図、第2図は本発明の文字放送受像装置の動作フロー
チャート例を示す線図、第3図は本発明に用いる表示手
段の表示例を示す正面図である。 (10)はR.G.B切換回路、(11)は表示手段、(14)は
文字信号プロセッサ、(16)は文字信号発生回路、(1
7)は遠隔制御用操作手段である。
FIG. 1 is a system diagram showing an embodiment of a teletext receiving apparatus of the present invention, FIG. 2 is a diagram showing an example of an operation flowchart of the teletext receiving apparatus of the present invention, and FIG. 3 is a display means used in the present invention. It is a front view which shows the example of a display of. (10) is an RGB switching circuit, (11) is display means, (14) is a character signal processor, (16) is a character signal generation circuit, (1)
7) is an operation means for remote control.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】外部ビデオ入力端子に供給される外部ビデ
オ入力信号と、 内蔵したチューナからの通常のテレビジョン信号及び文
字放送信号等の内部ビデオ信号とを切換回路で切換受像
し得る様にした文字放送受像装置に於いて、 上記外部ビデオ入力信号の受像時に上記文字放送を選択
した場合に、上記切換回路を上記内部ビデオ側に変更す
ると共に文字放送受像画面中に、この文字放送が属する
チャンネル番号を表示するようにしたことを特徴とする
文字放送受像装置。
1. A switching circuit for receiving an external video input signal supplied to an external video input terminal and an internal video signal such as a normal television signal and a teletext signal from a built-in tuner by a switching circuit. In the teletext receiving apparatus, when the teletext is selected at the time of receiving the external video input signal, the switching circuit is changed to the internal video side, and the channel to which the teletext belongs is displayed in the teletext receiving screen. A teletext receiving apparatus characterized by displaying a number.
JP30191387A 1987-11-30 1987-11-30 Teletext receiver Expired - Lifetime JP2611281B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30191387A JP2611281B2 (en) 1987-11-30 1987-11-30 Teletext receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30191387A JP2611281B2 (en) 1987-11-30 1987-11-30 Teletext receiver

Publications (2)

Publication Number Publication Date
JPH01143576A JPH01143576A (en) 1989-06-06
JP2611281B2 true JP2611281B2 (en) 1997-05-21

Family

ID=17902619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30191387A Expired - Lifetime JP2611281B2 (en) 1987-11-30 1987-11-30 Teletext receiver

Country Status (1)

Country Link
JP (1) JP2611281B2 (en)

Also Published As

Publication number Publication date
JPH01143576A (en) 1989-06-06

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