JPS61118083A - Character broadcasting receiver - Google Patents

Character broadcasting receiver

Info

Publication number
JPS61118083A
JPS61118083A JP24150884A JP24150884A JPS61118083A JP S61118083 A JPS61118083 A JP S61118083A JP 24150884 A JP24150884 A JP 24150884A JP 24150884 A JP24150884 A JP 24150884A JP S61118083 A JPS61118083 A JP S61118083A
Authority
JP
Japan
Prior art keywords
memory
program
program number
teletext
stored
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
Application number
JP24150884A
Other languages
Japanese (ja)
Other versions
JPH0325120B2 (en
Inventor
Isao Karibe
功 刈部
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP24150884A priority Critical patent/JPS61118083A/en
Publication of JPS61118083A publication Critical patent/JPS61118083A/en
Publication of JPH0325120B2 publication Critical patent/JPH0325120B2/ja
Granted legal-status Critical Current

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  • Television Systems (AREA)

Abstract

PURPOSE:To reset automatically the program number stored in a non-volatile memory at a power failure recovery, to a multi memory by installing the non- volatile memory storing the program number of the character broadcasting storing to the multi memory. CONSTITUTION:At a decoder part B which pulls out a character signal from a compound video signal from a receiving part 2 and executes the data processing, a multi memory 11 and a non-volatile memory 16 are installed. The multi memory 11 stores a program number of the character broadcasting and the contents of the program corresponding to this beforehand. The non- volatile memory 16 stores the program number corresponding to the above- mentioned contents of the program. When a power source supply is stopped due to the power failure, etc., the contents of the memory in the multi memory is deleted. However, after that, when the power source 13 is recovered, by the control by a CPU 8, the program number of the character broadcasting in correspondence to the program number in the non-volatile memory ' 16 is automatically reset to a multi memory 11.

Description

【発明の詳細な説明】 く技術分野〉 本発明はテレビジョン映像信号の垂直R線消去期間を利
用し、その−水平走査期間を単位長とするデータパケッ
トにより伝送されてくる文字(多重)信号を受信する文
字放送受信機に係り、特には文字放送の番組内容を予じ
め記憶するマルチメモリを有する文字放送受信機に関す
るものである。
[Detailed Description of the Invention] [Technical Field] The present invention utilizes the vertical R-line erasure period of a television video signal to eliminate character (multiplex) signals transmitted by data packets whose unit length is the horizontal scanning period. The present invention relates to a teletext receiver for receiving teletext, and particularly to a teletext receiver having a multi-memory for storing teletext program contents in advance.

〈従来技術〉 従来の文字放送受信機には、文字放送を表示するだめの
待ち時間を減らすためのマルチメモリを設け、このマル
チメモリには視聴希望する文字放送の内容を予じめ記憶
させておき、必要なときにCRT画面上に文字放送を即
座に表示できるようにしたものである。
<Prior art> Conventional teletext receivers are equipped with a multi-memory to reduce the waiting time for displaying teletext, and this multi-memory is pre-stored with the contents of the teletext that the user wishes to view. This system allows teletext to be displayed immediately on a CRT screen when necessary.

ところがこのような従来の文字放送受信機では、停電や
ACプラグを引抜いた場合環一旦電源供給を絶ってしま
うと、自動的に文字放送をマルチメモリへ記憶する番組
番号の内容が失なわれるため、メイン電源再投入時には
再度マルチメモリに視聴希望する文字放送の内容を記憶
させるだめの面倒な操作が必要となる0そこで電源の供
給が途絶えも再投入時には自動的にマルチメモリに番組
番号を再設定できれば便利となろう。
However, with conventional teletext receivers like this, if the power supply is cut off due to a power outage or when the AC plug is pulled out, the contents of the program number that automatically stores teletext messages in the multi-memory are lost. When the main power is turned on again, a troublesome operation is required to memorize the contents of the teletext broadcast you wish to watch in the multi-memory again.Even if the power supply is cut off, the program number is automatically re-stored in the multi-memory when the power is turned on again. It would be convenient if it could be set.

く目 的〉 本発明はこのような点に鑑みなされたもので、マルチメ
モリに例えば視聴希望の文字放送を記憶させた後は、メ
イン電源を切ってその記憶内容が失われても、メイン電
源再投入時にはその記憶内容が自動的に再度設定される
ようにし、マルチメモリへの文字放送内容の記憶のだめ
の操作の簡略化が図れるようKすることを目的とする。
Purpose of the present invention The present invention has been made in view of the above points, and after storing, for example, a teletext broadcast that you wish to view in the multi-memory, even if the main power is turned off and the stored contents are lost, the main power can be turned off. It is an object of the present invention to automatically set the stored contents again when the system is reloaded, thereby simplifying the operation of storing teletext contents in a multi-memory.

〈実施例〉 以下、本発明を図面に示す一実施例に基づいて詳細に説
明する。
<Example> Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

第1図は、この実施例に係る文字放送受信機の全体の回
路図である。この実施例の文字放送受信機はテレビジョ
ン受信部Aと文字放送デコーダ部Bとを有する。テレビ
ジョン受信部Aは通常のテレビジ3ノ受信機と同様にテ
レビジョンアンテナ1で受信されたテレビジョン信号に
RF増幅、IF増幅、検波等の処理を施こす受信部2と
、受信部2からの複合映像信号を処理する通常の処理回
路3とを備えるとともに、映像信号と文字放送デコーダ
Bからの文字信号とを切換えて出力するための回路4と
、CBr4とを備える。
FIG. 1 is an overall circuit diagram of a teletext receiver according to this embodiment. The teletext receiver of this embodiment has a television receiving section A and a teletext decoder section B. The television receiving section A includes a receiving section 2 that performs processing such as RF amplification, IF amplification, and detection on the television signal received by the television antenna 1, and a receiving section 2 that processes the television signal received by the television antenna 1, like a normal television receiver. It also includes a normal processing circuit 3 for processing a composite video signal, a circuit 4 for switching and outputting a video signal and a character signal from the teletext decoder B, and a CBr 4.

一方、文字放送デコーダ部Bは、前記受信部2からの複
合映像信号から文字信号を抜き取って所定のデータ処理
をする回路6と、この処理回路6からの文字信号を一旦
記憶するバッファメモリ7と、全体の動作を制御するC
PU8と、CPU8の動作のプログラムが記憶されてい
るプログラムROM9と、CPU8が動作上使用するワ
ーキングRAMl0とを備える。更に、この文字放送デ
コーダ部Bは、文字放送の番組の内容が予じめ記憶され
るマルチメモリ11と、文字放送のための図示しない操
作部からの操作信号に応答して制御信号を発生する操作
部制御回路12と、操作部制御回路12からの第1信号
線1.を介する第1制御信号に応答して電源の供給・遮
断が制御されるメイン電源13とを含む。操作部制御回
路12は第2信号線t2を介して第2制御信号をテレビ
ジョン受信部Aの処理回路3と、CPU8とに与えるよ
うKなっている。また、メイン電源13は、電源線t3
を介してテレビジョン受信部Aの受信部2と切換回路4
とに供給し、また文字放送デコーダ部Bの各回路に電源
を供給する。14はデータバスであり、15はアドレス
バスである。16は不揮発性メモ’J(EEPROM)
であり、何らかの事情で電源13の供給が途絶えてもそ
の内容を保持する。CPU8はEEJ’ROM制御線t
4 KよりEEPROM16内のアドレスを指定し、デ
ータバス14を介してマルチメモ’JIIK記憶した番
組番号データの書き込み、読み出しを制御する。
On the other hand, the teletext decoder section B includes a circuit 6 that extracts a character signal from the composite video signal from the receiving section 2 and performs predetermined data processing, and a buffer memory 7 that temporarily stores the character signal from the processing circuit 6. , C that controls the overall operation
It includes a PU 8, a program ROM 9 in which programs for the operation of the CPU 8 are stored, and a working RAM 10 used by the CPU 8 for operation. Furthermore, this teletext decoder section B generates a control signal in response to an operation signal from a multi-memory 11 in which contents of a teletext program are stored in advance and an operation section (not shown) for teletext broadcasting. An operating section control circuit 12 and a first signal line 1 from the operating section control circuit 12. and a main power source 13 whose supply/cutoff of power is controlled in response to a first control signal via the main power source 13 . The operating unit control circuit 12 is configured to provide a second control signal to the processing circuit 3 of the television receiving unit A and the CPU 8 via the second signal line t2. In addition, the main power supply 13 is connected to the power supply line t3
The receiving section 2 of the television receiving section A and the switching circuit 4 via
It also supplies power to each circuit of the teletext decoder section B. 14 is a data bus, and 15 is an address bus. 16 is non-volatile memo 'J (EEPROM)
The contents are retained even if the power supply 13 is interrupted for some reason. CPU8 is the EEJ'ROM control line t
4K specifies an address in the EEPROM 16 and controls writing and reading of program number data stored in the multimemo 'JIIK via the data bus 14.

次に電源の供給が途絶えたことを検出する手段を説明す
る。17はリセット回路であり、電源13がオンされる
とりセクト信号ts をCPU8へ出力する。(電源の
立上りでワンショノ)パルスを出力する。)このときC
PU8ではリセット信号入力釦よりプログラムアドレス
からスタートするよう釦なっている。第2図はマルチメ
モリ11に文字放送を記憶するための番組番号を記憶す
るワーキングRAMl0内のメモリとEEPROM16
内のメモリとの構成を示す図である。ワーキングRAM
I O内のメモリには文字放送の番組番号rlJ、r2
J、r7J、r3J、r5J・・・「23Jが記憶され
ている。ワーキングRAM内メモリに対応するマルチメ
モリ11内のメモリ領域には上記番組番号およびこの番
組番号に対応する番組の内容が記憶されている。EEP
ROM内メモリに全メモリ望する番組番号、実施例では
「7」「15」が記憶されている。EEPROM内メモ
リに全メモリFFJは番組番号が記憶されていないこと
を表わしている。ワーキングRAM内メモリに登録でき
る番組番号の数は、マルチメモリ11の文字放送記憶容
量と一致し、EEPROM内メモリに全メモリる番組番
号の数は、ワーキングRAM内メモリのそれと同数かま
たはそれ以下になっている。矢印の線m l−m sは
、ワーキングRAM内メモリに対してPIF(番組索引
パケット)で送出されてくる番組番号「1」「2」「3
」「5」・・「23」が割り当てられて記憶されること
を表わしている。このような記憶状態で、メイン電源1
3が切れる。ところが、EEPROM内メモリの全メモ
リは破壊されることなくそのまま維持される。また、こ
のときマルチメモリ11及びワーキングRAMI 3の
記憶内容は、メイン電源13が切れることにより失われ
る。
Next, a means for detecting the interruption of power supply will be explained. A reset circuit 17 outputs a sector signal ts to the CPU 8 when the power supply 13 is turned on. Outputs a pulse (once the power is turned on). ) At this time C
The PU8 has a reset signal input button to start from the program address. FIG. 2 shows the memory in the working RAM 10 and the EEPROM 16 for storing program numbers for storing teletext in the multi-memory 11.
FIG. 2 is a diagram showing the configuration of the internal memory. Working RAM
The teletext program numbers rlJ and r2 are stored in the memory in the IO.
J, r7J, r3J, r5J... ``23J is stored.The above program number and the content of the program corresponding to this program number are stored in the memory area in the multi-memory 11 corresponding to the memory in the working RAM. EEP
The desired program numbers, "7" and "15" in the embodiment, are stored in the ROM internal memory. All memories FFJ in the EEPROM internal memory indicate that no program number is stored. The number of program numbers that can be registered in the memory in the working RAM matches the teletext storage capacity of the multi-memory 11, and the number of program numbers that can be stored in the memory in the EEPROM is equal to or less than that in the memory in the working RAM. It has become. The arrow line m l - m s indicates the program numbers "1", "2", and "3" sent out by PIF (program index packet) to the memory in the working RAM.
”, “5”, . . ., “23” are assigned and stored. In this memory state, main power supply 1
3 is cut. However, all the memories in the EEPROM are not destroyed and are maintained as they are. Further, at this time, the stored contents of the multi-memory 11 and the working RAMI 3 are lost when the main power supply 13 is turned off.

ところが、EEPROM内メモリにサメモリが記憶され
ているので、メイン電源13を再投入すると、再びマル
チメモリ11に番組番号およびこれに対応する番組内容
が記憶される。ここで、EEPROM内メモリでサメモ
リている番組番号およびその番組内容をマルチメモリ1
1に記憶させる場合は、EEPROM内メモリのサメモ
リをワーキングRAM内メモリに矢印m 6 + m 
7に示すように転送させる。
However, since the sub-memory is stored in the EEPROM internal memory, when the main power supply 13 is turned on again, the program number and the corresponding program content are stored in the multi-memory 11 again. Here, store the program number stored in the memory in the EEPROM and the contents of the program in the multi-memory 1.
1, move the EEPROM internal memory to the working RAM internal memory by moving the arrow m 6 + m
Transfer as shown in 7.

次に、第3図に示すフローチャートを参照しながら、更
に具体的に説明する。
Next, a more specific explanation will be given with reference to the flowchart shown in FIG.

電源13のスイッチが投入されたとき、ステップ■でY
ESと判定してステップ■に進み、このステップ■でE
EPROM内メモリ以外のすべての回路をクリアしてイ
ニシャライズする。またステップ■でNoと判定した場
合はステップ■に進む。
When the switch of power supply 13 is turned on, press Y at step ■.
Determine ES and proceed to step ■, and in this step ■
Clear and initialize all circuits other than the EPROM internal memory. If the determination in step (2) is No, the process proceeds to step (2).

ステップ■ではチャンネルの切換えが行われたか否かを
判断し、YEqの判定のときはステップ■においてワー
キングRAM内メモリをイニシャライズする。ステップ
■でNoと判定したときはワーキングRAM内メモリの
イニシャライズは行わず、平常のルーチン処理を行う。
In step (2), it is determined whether or not the channel has been switched, and when the determination is YEq, the memory in the working RAM is initialized in step (2). If the determination in step (2) is No, the memory in the working RAM is not initialized and normal routine processing is performed.

ステップ■またはステップ■でYESと判定したときは
ステップ■に進み、以下に述べるよって、ワーキングR
AM内メモリにマルチメモリ11に内容を記憶させるべ
き番組番号の設定にとりかかる。即ち、ステップ■にお
いてEEPROM内メモリをサメモリ、予約番組番号が
あればYESと判定してステップ■に進む。ステップ■
ではその番号の予約番組が放送されているかどうかを調
べ、放送されておればYESと判定してステップ■に進
み、このステップ■でその予約番組番号をワーキングR
AM内メモリに転送する。ステップ■で放送されていな
ければNoと判定し、予約番組の転送は行わない。
If it is determined YES in step ■ or step ■, proceed to step ■, and as described below, the working R
Setting of the program number whose contents are to be stored in the multi-memory 11 in the AM memory begins. That is, in step (2), if the memory in the EEPROM is a memory, and there is a reserved program number, it is determined as YES, and the process proceeds to step (2). Step ■
Then, check whether the reserved program with that number is being broadcast, and if it is, it will be determined YES and proceed to step ■.In this step ■, the reserved program number will be sent to Working R
Transfer to AM memory. If the program is not being broadcast in step (2), the determination is No, and the reserved program is not transferred.

次にステップ■で再びEEPROM内メモリをサメモリ
、まだ予約番組番号が残っておればYESと判定し、ス
テップ■にもどり、以下同じ処理をくり返す。この操作
をすべての予約番組番号について終了し、もし予約番組
番号が残っていなければステップ■でNOと判定しステ
ップ■に進む。このステップ■ではワーキングRAM内
メモリで、EEPROM内メモリよサメモリ号の転送を
受けなかった番地に、PIFより読み取った番組番号を
順に割りつけてゆく(ステップ■)。この割りっけが終
了すれば、ワーキングRAM内メモリに設定された番組
番号の文字放送をマルチメモIJ 11に記憶させる。
Next, in step (2), the memory in the EEPROM is saved again, and if the reserved program number still remains, a YES determination is made, and the process returns to step (2), and the same process is repeated thereafter. This operation is completed for all reserved program numbers, and if no reserved program number remains, a negative determination is made in step (2) and the process proceeds to step (2). In this step (2), program numbers read from the PIF are sequentially assigned to addresses in the working RAM that have not received the transfer of the memory number to the EEPROM (step (2)). When this assignment is completed, the teletext of the program number set in the memory in the working RAM is stored in the multi-memo IJ 11.

こうして予約番組が優先的にマルチメモリ11に記憶さ
れ、マルチメモリ11の余った部分には、他の番組番号
の文字放送を、マルチメモリの記憶容量が許す限り最大
限に記憶させているので、急に予約していない文字放送
の視聴を思いたったときも、多くの文字放送番組を待ち
時間なしで視聴することができる。
In this way, reserved programs are stored preferentially in the multi-memory 11, and in the remaining portion of the multi-memory 11, teletext broadcasts of other program numbers are stored to the maximum extent permitted by the storage capacity of the multi-memory. Even when you suddenly want to watch a teletext program that you have not reserved, you can watch many teletext programs without waiting.

く効 果〉 以上のように、本発明によれば、マルチメモリに記憶さ
せる文字放送の番組番号を記憶させる不揮発性メモリを
設けたので操作者が番組番号を配電源の供給が絶たれた
場合でも電源再投入時には不揮発性メモリに記憶された
番組番号が自動的にマルチメモリに設定され、これによ
りマルチメモリへの文字放送内容の記憶のだめの操作の
簡略化を図ることができる。
Effects> As described above, according to the present invention, since a non-volatile memory is provided for storing the program number of teletext broadcast to be stored in the multi-memory, the operator can easily store the program number even when the power supply is cut off. However, when the power is turned on again, the program number stored in the nonvolatile memory is automatically set in the multi-memory, thereby simplifying the operation of storing teletext content in the multi-memory.

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

第1図は本発明の一実施例のブロック図、第2図は同実
施例に使用されるワーキングRAMとEEPROMのメ
モリ構成図、第3図は同実施例の動作説明のだめのフロ
ーチャートである。
FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a memory configuration diagram of a working RAM and EEPROM used in the embodiment, and FIG. 3 is a flowchart for explaining the operation of the embodiment.

Claims (1)

【特許請求の範囲】[Claims] 1、テレビジョン受信部に文字放送デコーダ部を設けた
ものであって、文字放送デコーダは少なくとも文字放送
の番組番号およびこれに対応する番組内容を予じめ記憶
するマルチメモリと、前記番組内容に対応する番組番号
を記憶する不揮発性のメモリとを有し、電源供給が一旦
休止された後のメイン電源再投入時には前記不揮発性メ
モリに記憶されていた番組番号に対応した文字放送の番
組番号を前記マルチメモリに再設定するようにしたこと
を特徴とする文字放送受信機。
1. A teletext decoder section is provided in the television receiving section, and the teletext decoder includes a multi-memory that stores in advance at least the program number of the teletext broadcast and the program content corresponding thereto, and a multi-memory that stores the program content corresponding to the program number. and a non-volatile memory for storing the corresponding program number, and when the main power is turned on again after the power supply is temporarily stopped, the teletext program number corresponding to the program number stored in the non-volatile memory is stored. A teletext receiver characterized in that the multi-memory setting is reset.
JP24150884A 1984-11-14 1984-11-14 Character broadcasting receiver Granted JPS61118083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24150884A JPS61118083A (en) 1984-11-14 1984-11-14 Character broadcasting receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24150884A JPS61118083A (en) 1984-11-14 1984-11-14 Character broadcasting receiver

Publications (2)

Publication Number Publication Date
JPS61118083A true JPS61118083A (en) 1986-06-05
JPH0325120B2 JPH0325120B2 (en) 1991-04-05

Family

ID=17075370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24150884A Granted JPS61118083A (en) 1984-11-14 1984-11-14 Character broadcasting receiver

Country Status (1)

Country Link
JP (1) JPS61118083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01296876A (en) * 1988-05-25 1989-11-30 Matsushita Electric Ind Co Ltd Teletext receiving device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885683A (en) * 1981-11-18 1983-05-23 Hitachi Ltd Character broadcasting receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885683A (en) * 1981-11-18 1983-05-23 Hitachi Ltd Character broadcasting receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01296876A (en) * 1988-05-25 1989-11-30 Matsushita Electric Ind Co Ltd Teletext receiving device

Also Published As

Publication number Publication date
JPH0325120B2 (en) 1991-04-05

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