JPH0319542A - Individual reception system for mass medium information by radio wave - Google Patents

Individual reception system for mass medium information by radio wave

Info

Publication number
JPH0319542A
JPH0319542A JP1155239A JP15523989A JPH0319542A JP H0319542 A JPH0319542 A JP H0319542A JP 1155239 A JP1155239 A JP 1155239A JP 15523989 A JP15523989 A JP 15523989A JP H0319542 A JPH0319542 A JP H0319542A
Authority
JP
Japan
Prior art keywords
identification code
code
memory circuit
decoder
signal
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
JP1155239A
Other languages
Japanese (ja)
Other versions
JP2861063B2 (en
Inventor
Kenzo Okawa
大川 健三
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 Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP1155239A priority Critical patent/JP2861063B2/en
Publication of JPH0319542A publication Critical patent/JPH0319542A/en
Application granted granted Critical
Publication of JP2861063B2 publication Critical patent/JP2861063B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To distribute information to lots of subscribers simultaneously with low cost by comparing a decoder output with a coincident pattern read from a memory circuit and decoding an information signal received based on a decoded code read from the memory circuit. CONSTITUTION:In the case of a TV signal able to be received by a subscriber only individually, the signal is indexed by a detected identification code and a decoded code on a memory circuit 6 is read. An identification code is decoded by a decoder 7 according the decoded code and a decoded signal and a coincidence signal read from the memory circuit 6 are compared with a comparator 8 and when coincident, an AND gate 10 passes the video signal decoded by a decoder 9. Then the video signal passes on OR gate 12 and is inputted to a receiver circuit 13, and displayed on a CRT 14. Thus, even when the number of the subscribers is increased, the distribution cost is not increased and the information is distributed simultaneously to lots of the subscribers.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は新関等のマスメディア情報を電波を使って利用
契約者だけに提供する個別受信方式に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an individual reception system for providing mass media information such as Shinseki etc. only to subscribers using radio waves.

(従来の技術) 従来,個別の利用契約者だけにマスメディア情報をオン
ラインで提供しようとする場合は,電話回線等を使い、
1:1の回線を確保する必要があった。
(Prior art) Conventionally, when attempting to provide mass media information online only to individual subscribers, telephone lines etc. were used to provide mass media information online.
It was necessary to secure a 1:1 line.

(発明が解決しようとする課題) しかしながら、この従来の方法では、(1)回線コスト
が高〈付き.(2)利用者の数だけ繰シ返して送信しな
ければならないので全ての契約者に送信し終るまでに長
い時間を要していた。
(Problems to be Solved by the Invention) However, in this conventional method, (1) the line cost is high; (2) Since the message had to be sent repeatedly for the number of users, it took a long time to send it to all subscribers.

そのため.契約者の数が増加する程.適用が困難になる
という欠点があった。
Therefore. The more the number of subscribers increases. The drawback was that it was difficult to apply.

本発明の目的は上記欠点を解決するもので.契約者数の
増加に関係なく、多数の契約者に低コストで同時に配信
でき.かつ,盗受信を十分に防止できる電波によるマス
メディア情報の個別受信方式を提供することにある。
The purpose of the present invention is to solve the above drawbacks. Regardless of the increase in the number of subscribers, it is possible to simultaneously distribute to many subscribers at low cost. Another object of the present invention is to provide a method for individually receiving mass media information using radio waves that can sufficiently prevent stolen reception.

(0!題を解決するための手段) 前記目的を達成するために本発明によるt波によるマス
メディア情報の個別受信方式は配信側装置と,多数の受
信機とからなる電波によるマスメディア情報個別受信方
式であって、前記配信側装置は、マスメディア情報の種
別を表わす識別コードと.予じめ決められたコードによ
って符号化された情報信号とを含む電波を送出するよう
に構成し、前記受信機は、前記配信側装置からの電波を
受信するアンテナと、前記受信した電波に含咬れる識別
コードを検出する識別コード検出器と、前記識別コード
検出器により検出された識別コードをインデックスとし
て胱出される解読コード、合致パターンレよびバスフー
ドを記憶する再書込み可能なメモリ回路と、前記メモリ
回路から読出された解読コードに基づ含前記識別コード
検出器で検出した識別コードを復合化する第1のデコー
ダと,前記第1のデコーダ出力と前記メモリ回路から読
出した合致パターンとを比較するコンパレータと、前記
メモリ回路から読出されfcM胱コードに基づき受信し
た情報信号を復合化するg2のデコーダと、前記コンパ
レータの一致,不一致信号に従がい第2のデコーダ出力
を、前記識別コード検出器によク検出された識別コード
に従がい.受信した情報信号をゲートするゲート手段と
、前記パスワードをキーにして、前記メモリ回路に格納
されている解読コードおよび合致パターンを書き替え町
能なメモリ書込器とを有している。
(Means for Solving Problem 0!) In order to achieve the above object, the method for individually receiving mass media information using T-waves according to the present invention is a system for individually receiving mass media information using radio waves, which is composed of a distribution side device and a large number of receivers. In the receiving method, the distributing device receives an identification code indicating the type of mass media information. The receiver is configured to transmit a radio wave including an information signal encoded by a predetermined code, and the receiver includes an antenna for receiving the radio wave from the distribution side device and an information signal included in the received radio wave. an identification code detector that detects an identification code that can be bitten; a rewritable memory circuit that stores a decoding code, a matching pattern, and a bath hood that are output using the identification code detected by the identification code detector as an index; a first decoder that decodes the identification code detected by the identification code detector based on the decoding code read from the memory circuit; and a first decoder that decodes the identification code detected by the identification code detector based on the decoding code read from the memory circuit; a comparator for comparison, a decoder of g2 for decoding the information signal read from the memory circuit and received based on the fcM bladder code, and a second decoder output according to the match/mismatch signal of the comparator for detecting the identification code. Follow the identification code detected by the device. The apparatus includes a gate means for gating the received information signal, and a memory writer capable of rewriting the decoding code and matching pattern stored in the memory circuit using the password as a key.

な》、上記バスソードは電話回線等を使って.個別の受
信機のメモリ回路に格納されている解読コードと合致パ
ターンを、マスメディア情報を配信する側が書き換える
時に使用される。
》The above bus sword uses a telephone line, etc. It is used when a mass media information distributor rewrites the decoding code and matching pattern stored in the memory circuit of an individual receiver.

(実施例) 以下、図面を参照して本発明をさらに詳しく説明する。(Example) Hereinafter, the present invention will be explained in more detail with reference to the drawings.

第1図は本発明による個別受信方式の実施例を示すもの
で,TV[波と,TV受信機に適用した場合の例である
FIG. 1 shows an embodiment of the individual reception system according to the present invention, and is an example of the case where it is applied to a TV wave and a TV receiver.

TV電波15は配信側装置16から発射され、アンテナ
1とチューナ2を通って%識別コード検出器3に入力す
る。
A TV radio wave 15 is emitted from a distribution device 16, passes through an antenna 1 and a tuner 2, and is input to a percent identification code detector 3.

第2図はTV信号の一画面分の構成を示す図である。本
実施例では最初のフレーム信号に識別コードを挿入して
ある。
FIG. 2 is a diagram showing the structure of one screen of a TV signal. In this embodiment, an identification code is inserted into the first frame signal.

識別コードは通常のTV信号のときはO,契約者だけが
個別に受信できるTV信号のときは0ではない。
The identification code is 0 when the signal is a normal TV signal, and is not 0 when the signal is a TV signal that only the subscriber can receive individually.

通常のTV信号の時は,R別コード検出器3からはOが
出力されるのでNORゲート4の出力が1となシ,アン
ドゲート11ぱ映像信号を通過させる。
In the case of a normal TV signal, since the R code detector 3 outputs O, the output of the NOR gate 4 is 1, and the AND gate 11 passes the video signal.

映像信号はオアゲート12を通ク受像回路13に入力さ
れ,ORT14に表示される。
The video signal passes through the OR gate 12, is input to the image receiving circuit 13, and is displayed on the ORT 14.

契約者だけが個別に受信できるTV{?!号のときFi
第3図に示すように検出した識別コードでインデックス
され、メモリ回路6上の解読コードが読出される。デコ
ーダ7はこの解読コードに従がい識別コードを復号化し
,その復号化信号と、メモリ回路6から読出した合致信
号とをコンパレータ8で比較する。
TV that only subscribers can receive individually {? ! Fi when number
As shown in FIG. 3, the detected identification code is used as an index, and the decoding code on the memory circuit 6 is read out. Decoder 7 decodes the identification code according to this decoding code, and comparator 8 compares the decoded signal with the matching signal read from memory circuit 6.

比較の結果,一致すれば,コンパレータの出力はハイレ
ベルになるので、アンドグート10Fiデコーダ9で復
号化された映像信号を通過させる。
As a result of the comparison, if they match, the output of the comparator becomes high level, and the video signal decoded by the ANDGUT 10Fi decoder 9 is passed through.

この後,映像信号はオアゲート12を通や,受像回路1
3に入力され,ORT14に表示される。
After that, the video signal passes through the OR gate 12 and passes through the image receiving circuit 1.
3 and displayed on the ORT 14.

メモリ回路中の解読コードpよび合致パターンを書き替
えるには配信側装置から電話回線を介してメモリ書込要
求を送出する。
To rewrite the decoding code p and matching pattern in the memory circuit, a memory write request is sent from the distribution side device via the telephone line.

メモリ書込要求にともなb配信側装置から送られてくる
パスワードとメモリ回路6から読出されたパスワードと
の一致をメモリ書込器5で確認する。
The memory writer 5 confirms that the password sent from the distribution side device b in response to the memory write request matches the password read from the memory circuit 6.

メモリ書込器5は一致を確認すると.配信側装[16か
ら送られて〈るw!読コードと合致パターンとをメモリ
回路6に書込む。
When the memory writer 5 confirms the match. Distribution side [Sent from 16 lol! The reading code and matching pattern are written into the memory circuit 6.

パスワードは別の方法で.1F込みができるようになっ
ている。
Enter the password in another way. It is now possible to include the 1st floor.

(発明の効果冫 本発明は以上のように構底されているので,以下のよう
な利点を有する。
(Effects of the Invention) Since the present invention is structured as described above, it has the following advantages.

(1)電波を使うことにより,契約者が増加しても配信
コストは高(ならない。
(1) By using radio waves, distribution costs will remain high even if the number of subscribers increases.

(2)また、多数の契約者に同時に配信できる。(2) Also, it can be distributed to many subscribers at the same time.

(3)解読コードは.マスメデイヤ情報の配信側が自由
に変えることができるので盗受信を防止できる。
(3) The decoding code is. Since the distributor of mass media information can freely change the information, theft and reception can be prevented.

(4)配信側装置に知らせれば,受信側でパスワードを
自由に変えることができるので,第三者にメモリを書き
換えられることはない。
(4) If the transmitting side device is notified, the receiving side can change the password freely, so the memory cannot be rewritten by a third party.

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

第1図は本発明による個別受信方式の一実施例を示す回
路図である。第2図は本発明に分ける1画面分のTV信
号の構成を示す図,第3図はメモリ回路の記憶内容を示
す図である。 1・・・アンテナ   2・・・チューナ3・・・識別
コード検出器  4・・・NORゲート5・・・メモリ
書込器    6・・・メモリ回路7.9・・・デコー
ダ    8・・・コンパレータ10,11・・・アン
ドゲート 12・・・オアゲート   13・・・受像回路14・
・・ORT      15・・・t波16・・・配信
側装置 才2図
FIG. 1 is a circuit diagram showing an embodiment of the individual reception system according to the present invention. FIG. 2 is a diagram showing the structure of a TV signal for one screen divided according to the present invention, and FIG. 3 is a diagram showing the contents stored in the memory circuit. 1... Antenna 2... Tuner 3... Identification code detector 4... NOR gate 5... Memory writer 6... Memory circuit 7.9... Decoder 8... Comparator 10, 11...AND gate 12...OR gate 13...Image receiving circuit 14.
...ORT 15...T wave 16...Distribution side equipment

Claims (1)

【特許請求の範囲】[Claims] 配信側装置と、多数の受信機とからなる電波によるマス
メディア情報個別受信方式であつて、前記配信側装置は
、マスメディア情報の種別を表わす識別コードと、予じ
め決められたコードによつて符号化された情報信号とを
含む電波を送出するように構成し、前記受信機は、前記
配信側装置からの電波を受信するアンテナと、前記受信
した電波に含まれる識別コードを検出する識別コード検
出器と、前記識別コード検出器により検出された識別コ
ードをインデックスとして読出される解読コード、合致
パターンおよびパスワードを記憶する再書込み可能なメ
モリ回路と、前記メモリ回路から読出された解読コード
に基づ含前記識別コード検出器で検出した識別コードを
復合化する第1のデコーダと、前記第1のデコーダ出力
と前記メモリ回路から読出した合致パターンとを比較す
るコンパレータと、前記メモリ回路から読出された解読
コードに基づき受信した情報信号を復合化する第2のデ
コーダと、前記コンパレータの一致、不一致信号に従が
い第2のデコーダ出力を、前記識別コード検出器により
検出された識別コードに従がい、受信した情報信号をゲ
ートするゲート手段と、前記パスワードをキーにして、
前記メモリ回路に格納されている解読コードおよび合致
パターンを書き替え可能なメモリ書込器とを有すること
を特徴とする電波によるマスメディア情報の個別受信方
式。
This is an individual reception system for mass media information using radio waves, which consists of a distribution side device and a number of receivers, and the distribution side device receives an identification code representing the type of mass media information and a predetermined code. The receiver is configured to transmit a radio wave containing an encoded information signal, and the receiver includes an antenna for receiving the radio wave from the distribution side device, and an identification code for detecting an identification code included in the received radio wave. a code detector; a rewritable memory circuit that stores a decoding code read out using the identification code detected by the identification code detector as an index; a matching pattern; and a password; a first decoder for decoding the identification code detected by the identification code detector; a comparator for comparing the first decoder output with a matching pattern read from the memory circuit; a second decoder that decodes the received information signal based on the decrypted code, and a second decoder that decodes the received information signal based on the matching/mismatching signal of the comparator; and gate means for gating the received information signal, using the password as a key,
A system for individually receiving mass media information by radio waves, comprising a memory writer capable of rewriting the decoding code and matching pattern stored in the memory circuit.
JP1155239A 1989-06-16 1989-06-16 Individual reception method of mass media information by radio wave Expired - Fee Related JP2861063B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1155239A JP2861063B2 (en) 1989-06-16 1989-06-16 Individual reception method of mass media information by radio wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1155239A JP2861063B2 (en) 1989-06-16 1989-06-16 Individual reception method of mass media information by radio wave

Publications (2)

Publication Number Publication Date
JPH0319542A true JPH0319542A (en) 1991-01-28
JP2861063B2 JP2861063B2 (en) 1999-02-24

Family

ID=15601579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1155239A Expired - Fee Related JP2861063B2 (en) 1989-06-16 1989-06-16 Individual reception method of mass media information by radio wave

Country Status (1)

Country Link
JP (1) JP2861063B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003001133A (en) * 2001-06-18 2003-01-07 Sanki Eng Co Ltd Drain transport system
JP2007120610A (en) * 2005-10-27 2007-05-17 Max Co Ltd Vacuum breaker
US7584914B2 (en) 2003-09-18 2009-09-08 Max Co., Ltd. Drainage pipe washing apparatus
JP2014212517A (en) * 2013-04-04 2014-11-13 日本放送協会 Receiver, transmitter, and reception program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032449A (en) * 1983-08-01 1985-02-19 Matsushita Electric Ind Co Ltd Ciphered digital broadcast equipment
JPS60186182A (en) * 1984-03-06 1985-09-21 Clarion Co Ltd Chargeable television system
JPS6282742A (en) * 1985-10-07 1987-04-16 Hitachi Ltd Distribution system for remote sensing data

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032449A (en) * 1983-08-01 1985-02-19 Matsushita Electric Ind Co Ltd Ciphered digital broadcast equipment
JPS60186182A (en) * 1984-03-06 1985-09-21 Clarion Co Ltd Chargeable television system
JPS6282742A (en) * 1985-10-07 1987-04-16 Hitachi Ltd Distribution system for remote sensing data

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003001133A (en) * 2001-06-18 2003-01-07 Sanki Eng Co Ltd Drain transport system
US7584914B2 (en) 2003-09-18 2009-09-08 Max Co., Ltd. Drainage pipe washing apparatus
JP2007120610A (en) * 2005-10-27 2007-05-17 Max Co Ltd Vacuum breaker
JP2014212517A (en) * 2013-04-04 2014-11-13 日本放送協会 Receiver, transmitter, and reception program
JP2018137790A (en) * 2013-04-04 2018-08-30 日本放送協会 Receiver unit, transmitter, and reception program
JP2019004480A (en) * 2013-04-04 2019-01-10 日本放送協会 Receiver unit, transmitter, and reception program

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