JPH02288571A - Catv system and its reception terminal equipment - Google Patents
Catv system and its reception terminal equipmentInfo
- Publication number
- JPH02288571A JPH02288571A JP1107872A JP10787289A JPH02288571A JP H02288571 A JPH02288571 A JP H02288571A JP 1107872 A JP1107872 A JP 1107872A JP 10787289 A JP10787289 A JP 10787289A JP H02288571 A JPH02288571 A JP H02288571A
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- character
- video
- character information
- center
- 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
Links
- 230000005236 sound signal Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/081—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the additional information signals being transmitted by means of a subcarrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は個々の映像信号ソースに関連する文字情報を
例えばインバンドデータとしてセンターより送出し、各
端末器においてそのインバンドデータを復調して受信し
たビデオ信号に文字情報による文字画像をスーパインポ
ーズさせるようにしたＣＡＴＶシステムおよびその受信
端末器に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention transmits character information related to individual video signal sources from a center as in-band data, and demodulates the in-band data at each terminal. The present invention relates to a CATV system in which a character image based on character information is superimposed on a received video signal, and a receiving terminal thereof.
一般にＣＡＴＶシステムは、センターと例えば多数の家
庭にそれぞれ設置された受信端末器とを有線で結び、セ
ンター側で受けたオンエアー信号や、センター内で供給
する番組を伝送し、端末器に接続された家庭内のテレビ
受像機によって再生視聴するよう成されている。In general, a CATV system connects a center and receiving terminals installed in many homes by wire, transmits on-air signals received at the center and programs provided within the center, and connects to the terminals. It is designed to be played back and viewed on a television receiver in the home.
この場合、オンエアー信号を受は再送信する番組の視聴
は無料で、一方センター内で製作した独自番組や、新着
の映画等の番組は有料とすることでＣＡＴＶシステムの
運用会社の収益源としている。In this case, programs that receive and retransmit on-air signals are free to watch, while original programs produced within the center and programs such as newly arrived movies are charged for, which becomes a source of revenue for the CATV system operating company. .
ところで視聴者側においては、現在視聴している番組内
容（例えば番組名）はテレビ受像機に映し出されている
映像或いは再生音のみからでは容易に確認し得ないこと
があり、従って視聴者はリモコン操作等によって受信チ
ャンネルを順次、アップ又はダウンさせる等して興味が
ある番組を探し出す操作が行われる。However, on the viewer's side, the content of the program currently being viewed (for example, the program name) may not be easily confirmed from only the image displayed on the TV receiver or the playback sound, so the viewer may The user performs an operation to search for a program of interest by sequentially increasing or decreasing the reception channels by operation or the like.
このような場合、順次映し出されるそれぞれのチャンネ
ルの映像や再生音からでは番組名等が容易に連想できず
、視聴者が本来興味を持っていたであろう番組をそのま
まとばして次のチャンネルに切り換える等の操作が行わ
れ易い。In such cases, it is not easy to associate the name of the program from the images and playback sounds of each channel that are displayed sequentially, and the viewer may skip the program that they were originally interested in and switch to the next channel. It is easy to perform operations such as
一般に新着の映画番組等は視聴者にとっても興味をもつ
ケースが多く、又この主の番組はＣＡＴＶの運用会社は
有料番組として放送することが多い。In general, new movie programs and the like are often of interest to viewers, and CATV operating companies often broadcast these main programs as paid programs.
従って視聴者にとって興味がある番組が容易に探し出せ
ない状況においては、間接的には有料番組の視聴率を上
げることができず、運用会社にとっては収益減の要因と
なる。Therefore, in a situation where viewers cannot easily find programs that are of interest to them, it is not possible to indirectly increase the viewership of paid programs, which causes a decrease in profits for the management company.
この発明は上記した従来の実情に鑑みて成されたもので
あり、映し出された映像上に、番組名や番組内容を文字
情報として表示させることで、視聴者への便宜を計り、
併せて運用会社の収益増も期待できるＣＡＴＶシステム
およびその受信端末器を提供しようとするものである。This invention was made in view of the above-mentioned conventional situation, and aims to provide convenience to viewers by displaying the program name and program content as text information on the projected image.
At the same time, the present invention aims to provide a CATV system and its receiving terminal that can be expected to increase profits for operating companies.
上記課題を解決するための本発明により成されたＣＡＴ
Ｖシステムおよびその受信端末器は、ＣＡＴＶシステム
のセンター側において映像信号ソースに関連する文字情
報を映像信号に多重化して送り出し、端末側においては
受信した映像信号より文字情報を検出し、この検出した
文字情報を基にキャラクタジェネレータにより文字映像
に変換するように成される。CAT achieved by the present invention to solve the above problems
The V system and its receiving terminal multiplex character information related to the video signal source into a video signal at the center side of the CATV system and send it out, and at the terminal side, the character information is detected from the received video signal and the detected character information is transmitted. A character generator converts text information into a text image based on the text information.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図は本発明のＣＡＴＶシステムを説明するブロック
図である。このシステムはセンターＡに対して多数の端
末器Ｂがケーブル、Ｃを介して結ばれている。センター
Ａからは幹線ケーブルＣが引き出されてあり、幹線ケー
ブルＣの所定個所に設けられた分岐器りより引き出され
たドロップケーブルＣ′に対し各家庭の端末器Ｂが接続
されている。FIG. 1 is a block diagram illustrating the CATV system of the present invention. In this system, a large number of terminals B are connected to a center A via cables C. A trunk cable C is pulled out from the center A, and a drop cable C' pulled out from a branch provided at a predetermined location on the trunk cable C is connected to a terminal B at each home.
前記センターＡには屋外アンテナ１より得られたオンエ
アー信号を周波数変換して端末側に送出すると共にビデ
オテープレコーダやビデオディスク再生器（図示せず）
から得られた映像信号を端末側に送出するヘッドエンド
２が有る。The center A converts the frequency of the on-air signal obtained from the outdoor antenna 1 and sends it to the terminal side, as well as a video tape recorder and a video disc player (not shown).
There is a head end 2 that sends the video signal obtained from the terminal to the terminal side.
このヘッドエンド２には各端末器Ｂとセンターコンピュ
ータ３とのデータを変換するモデム４が接続されており
、前記コンピュータ３には当該コンピュータ３に指令を
与えるキーボード等の外部接続機器５．動作状態或いは
データ等を監視するためのデイスプレー６等が接続され
ている。A modem 4 for converting data between each terminal B and a center computer 3 is connected to the head end 2, and the computer 3 has externally connected devices 5, such as a keyboard, which give commands to the computer 3. A display 6 or the like for monitoring operating conditions, data, etc. is connected.
このコンピュータ３は、各端末器Ｂにおける有料番組の
視聴時間並びに視聴番組から視聴料金を算出し、そのデ
ータを蓄積して必要に応じて外部接続されたプリンター
によって請求書を発行する等の機能を具備している。This computer 3 has functions such as calculating viewing fees from the viewing time and viewing programs of paid programs on each terminal B, accumulating the data, and issuing a bill using an externally connected printer as necessary. Equipped with
又、センターＡには前記したビデオテープレコーダやビ
デオディスク再生器より得られた複数のソース７〜９の
うち、このソースの音声信号を引き出し、この音声信号
にそれぞれの映像信号ソースに関連する文字情報発生器
１０〜１２の出力を多重化するモジュレータ１３〜１５
が備えられている。In addition, the center A extracts the audio signals of these sources from among the plurality of sources 7 to 9 obtained from the video tape recorder and video disk player described above, and adds characters related to each video signal source to the audio signals. Modulators 13 to 15 that multiplex the outputs of the information generators 10 to 12
is provided.
第２図はその作用を説明するためのブロック図である。FIG. 2 is a block diagram for explaining its operation.
すなわち映像信号より引き出されたＦＭ音声信号７〜９
は、その映像信号に関連する文字情報信号源１０〜１２
の出力を受け、この文字情報信号源１０〜１２の出力に
よってモジュレータ１３〜１５でＡＭ変調される。That is, FM audio signals 7 to 9 extracted from the video signal
are text information signal sources 10 to 12 related to the video signal.
The outputs from the character information signal sources 10 to 12 are used for AM modulation by modulators 13 to 15.
このＡＭ変調された音声信号は各映像信号中のビデオ信
号と混合され変調送出器１６〜１８によってそれぞれ異
なったＲＦ周波数に変換される。This AM modulated audio signal is mixed with the video signal in each video signal and converted into different RF frequencies by modulation transmitters 16 to 18, respectively.
これらは混合器１９〜２１を介してヘッドエンド２にも
たらされ、さらにオンエアーの再送信出力と共にケーブ
ルＣに送り出される。These are provided to the headend 2 via mixers 19-21 and further sent to cable C along with the on-air retransmission output.
一方端末器Ｂ側は各家庭に設置された端末ボックス２２
と、このボックス２２に接続されたテレビ受像機２３を
基本構成としている。この端末ボックス２２には必要に
応じリモコンコマンダー２４が附属しており、コマンダ
ー２４によって各種の番組が選局可能となるよう構成さ
れている。On the other hand, the terminal B side is a terminal box 22 installed in each home.
The basic configuration is a television receiver 23 connected to this box 22. A remote control commander 24 is attached to this terminal box 22 as required, and is configured so that various programs can be selected by the commander 24.
第３図は端末器Ｂ側の前記端末ボックス２２の一例を示
したブロック図である。FIG. 3 is a block diagram showing an example of the terminal box 22 on the terminal B side.
ケーブルＣ′を介して伝送された映像信号は分岐器２５
を介してＲＦアンプ２６に入り、ミキサー２７に印加さ
れる。このミキサー２７には電圧制御発振器２８．プリ
スケーラ２９．プログラマブルデバイダ３０．クリスタ
ルオシシタ３１５位相検波器３２ａ、ローパスフィルタ
３２ｂより成る周知のＰＬＬ回路（チューナ部）３２が
接続されている。The video signal transmitted via the cable C' is sent to the branch 25.
The signal enters the RF amplifier 26 via the RF amplifier 26 and is applied to the mixer 27. This mixer 27 includes a voltage controlled oscillator 28. Prescaler 29. Programmable divider 30. A well-known PLL circuit (tuner section) 32 consisting of a crystal oscillator 315, a phase detector 32a, and a low-pass filter 32b is connected.
このＰＬＬ回路３２は第１０−カル発振器を構成してお
り、ここでチューニングされた中間周波出力はそれぞれ
バイパスフィルタ３３およびローパスフィルタ３４に印
加され、ビデオ信号および音声信号に分離される。ロー
パスフィルタ３４より得られた音声信号はＡＭ検波器３
５に印加される。このＡＭ検波器３５で得られた復調文
字情報は、演算制御回路３６に印加される。この演算制
御回路３６には、リモコンコマンダー２４からの出力を
受ける受光部３７が接続され、リキコンコードをデコー
ドすることによって前記復調文字情報をキャラクタジェ
ネレータ３８に与えるか否かの制御を行う。同様にコマ
ンダー２４から選局データ切換指令を受け、チューニン
グメモリ３９に対してデータを送出し、ＰＬＬ回路３２
によるチューニング制御を行わせる。This PLL circuit 32 constitutes a tenth-cal oscillator, and the intermediate frequency output tuned here is applied to a bypass filter 33 and a low-pass filter 34, respectively, and separated into a video signal and an audio signal. The audio signal obtained from the low-pass filter 34 is sent to the AM detector 3
5. The demodulated character information obtained by the AM detector 35 is applied to an arithmetic control circuit 36. A light receiving section 37 that receives an output from the remote control commander 24 is connected to the arithmetic control circuit 36, and controls whether or not to give the demodulated character information to the character generator 38 by decoding the requisite code. Similarly, upon receiving a tuning data switching command from the commander 24, the data is sent to the tuning memory 39, and the PLL circuit 32
Tuning control is performed by
このとき演算制御回路３６からはチューニング情報に応
じたデータがデータ送信器４０に送られ、データ送信器
４０は視聴しているチャンネルデータを端末アドレスデ
ータと共に分岐器２５を介してセンターＡに送出する。At this time, data corresponding to the tuning information is sent from the arithmetic control circuit 36 to the data transmitter 40, and the data transmitter 40 sends the channel data being viewed along with the terminal address data to the center A via the branch 25. .
一方リモコン操作によって復調文字情報がキャラクタジ
ェネレータ３８に印加されると、このキャラクタジェネ
レータ３８において文字情報に応じた文字画像情報に生
成される。このキャラクタジェネレータ３日によって生
成された文字画像情報は重畳回路４１においてバイパス
フィルタ３３゛によって得られた受信ビデオ信号に重畳
され、さらに混合回路４２において、ローパスフィルタ
３４によって得られた音声信号とともに混合される。On the other hand, when demodulated character information is applied to the character generator 38 by remote control operation, the character generator 38 generates character image information corresponding to the character information. The character image information generated by the character generator 3 is superimposed on the received video signal obtained by the bypass filter 33 in a superimposition circuit 41, and further mixed with the audio signal obtained by the low-pass filter 34 in a mixing circuit 42. Ru.
この混合回路４２の出力はミキサー４３において、第２
０−カル発振器４４の出力によってミキシングされＲＦ
空チャンネル信号に変換され、テレビ受像機２３への出
力ラインに送出される。The output of this mixing circuit 42 is sent to a second
RF mixed by the output of the 0-cal oscillator 44
It is converted into an empty channel signal and sent to the output line to the television receiver 23.
従ってテレビ受像機２３においては第１図に示すように
、端末器でチューニングされた番組の映像Ｅ上に、番組
のタイトル或いは内容を示す文字画像Ｆがスーパーイン
ポーズされた形で映し出される。Therefore, as shown in FIG. 1, on the television receiver 23, a character image F indicating the title or content of the program is displayed superimposed on the video E of the program tuned by the terminal.
この文字画像Ｆは視聴者の都合に応じてリモコン操作に
よりスーパインポーズさせて表示したり、又は消すこと
もできる。This character image F can be superimposed and displayed or deleted by remote control operation according to the convenience of the viewer.
［効 果］
以上の説明で明らかなとおり、この発明によると、セン
ター側から送出する個々の映像信号の、例えば音声信号
中に、該映像信号に関連する文字情報を多重化して送信
し、端末側においては、例えば音声信号より、文字情報
を検出してキャラクタジェネレータを駆動し、このキャ
ラクタジェネレータより得られる文字画像を、チューニ
ングされたビデオ画像にスーパインポーズするようにし
たので、視聴者にはその文字画像によって興味ある番組
か否かを即座に判断することができるという便宜が計ら
れる。[Effects] As is clear from the above explanation, according to the present invention, character information related to the video signal is multiplexed into, for example, an audio signal of each video signal sent from the center side, and transmitted to the terminal. On the side, for example, character information is detected from an audio signal, a character generator is driven, and the character image obtained from this character generator is superimposed on a tuned video image, so that the viewer can see The convenience of being able to immediately determine whether or not the program is of interest is provided by the character image.
又、ＣＡＴＶ運用会社にとっては有料番組をより視聴さ
せるような運用も可能であるといった経営上の利点も得
られる。In addition, for the CATV operating company, there is also a management advantage that it is possible to operate the system so that more paid programs are viewed.
又、この発明によると、既存のＣＡＴＶシステムをその
まま利用し、センター側に文字情報を送出する機能を追
加し、又端末側には例えばインバンドデークを復調して
文字画像を再生させるキャラクタジェネレータ等を追加
させることで実現できるので、比較的容易にしかも安価
に実施することが可能である。Further, according to the present invention, the existing CATV system is used as is, a function to send character information to the center side is added, and a character generator, etc., which demodulates in-band data and reproduces character images, is installed on the terminal side. This can be realized by adding , so it can be implemented relatively easily and at low cost.
第１図はこの発明の実施例を示したブロック図、第２図
はその一部の動作を説明するためのブロク図、
第３図はこの発明の端末器側の一実施例を示したブロッ
ク図である。
Ａ・・・センター、Ｂ・・・受信端末器、Ｃ・・・ケー
ブル、Ｄ・・・分岐器、Ｅ・・・受信映像、Ｆ・・・文
字画像、１３〜１５・・・モジュレータ、１６〜１８・
・・変調送出器、２２・・・端末ボックス、２３・・・
テレビ受像機、２４・・・リモコンコマンダー、３２・
・・ＰＬＬ部、３５・・・ＡＭ検波器、３８・・・キャ
ラクタジェネレータ、４１・・・重畳回路。Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a block diagram for explaining a part of its operation, and Fig. 3 is a block diagram showing an embodiment of the terminal device side of this invention. It is a diagram. A... Center, B... Receiving terminal, C... Cable, D... Branch, E... Received video, F... Character image, 13-15... Modulator, 16 ~18・
...Modulation transmitter, 22...Terminal box, 23...
Television receiver, 24...Remote control commander, 32.
...PLL section, 35...AM detector, 38...character generator, 41...superimposition circuit.
Claims (2)
て接続され、センターより映像信号を端末器に対して送
出するようにしたＣＡＴＶシステムにおいて、 前記センターには映像信号ソースに関連する文字情報を
映像信号に多重化するモジュレータと、多重化された映
像信号を特定の周波数に変調する変調送出器が備えられ
、 前記端末器にはセンターから送出された映像信号を受信
し、その映像信号より文字情報を検出する検波器と、こ
の検波器の出力によって文字情報を画像情報に変換する
キャラクタジェネレータと、このキャラクタジェネレー
タからの画像情報出力を前記映像信号中のビデオ信号に
重畳する重畳手段が具備され、 前記端末器に接続されたテレビ受像機によって再生され
るビデオ映像に前記文字情報による文字画像をスーパイ
ンポーズさせるようにして成るＣＡＴＶシステム。(1) In a CATV system in which a large number of terminal devices are connected to a center via cables, and video signals are sent from the center to the terminal devices, the center has character information related to the video signal source. A modulator that multiplexes the video signal into a video signal, and a modulation transmitter that modulates the multiplexed video signal to a specific frequency. A detector for detecting character information, a character generator for converting the character information into image information based on the output of the detector, and a superimposing means for superimposing the image information output from the character generator on the video signal in the video signal. A CATV system, wherein a character image based on the character information is superimposed on a video image reproduced by a television receiver connected to the terminal device.
像信号ソースに関連する文字情報を映像信号に多重化さ
れ、この多重化された映像信号を受信するＣＡＴＶシス
テムに用いられる端末器であって、 センターから送出された前記映像信号を受信するチュー
ナ部と、このチューナ部によりチューニングされた映像
信号より文字情報を検出する検波器と、この検波器によ
り得られた文字情報に基づいて画像情報を生成するキャ
ラクタジェネレータと、このキャラクタジェネレータか
らの画像情報出力をチューニングされた映像信号中のビ
デオ信号に重畳する重畳手段とを具備し、 当該端末器に接続されるテレビ受像機によって再生され
るビデオ映像に前記文字情報による文字画像をスーパイ
ンポーズさせるようにして成るＣＡＴＶシステムにおけ
る受信端末器。(2) A terminal device used in a CATV system that is connected to a center via a cable, multiplexes text information related to a video signal source into a video signal, and receives the multiplexed video signal. , a tuner section that receives the video signal sent from the center, a detector that detects text information from the video signal tuned by the tuner section, and a detector that detects image information based on the text information obtained by the detector. A character generator that generates a character generator, and a superimposition means that superimposes image information output from the character generator onto a video signal in a tuned video signal, and the video image is reproduced by a television receiver connected to the terminal. A receiving terminal device in a CATV system, which superimposes a character image based on the character information on the character information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1107872A JPH02288571A (en) | 1989-04-28 | 1989-04-28 | Catv system and its reception terminal equipment |
| GB8923608A GB2232031A (en) | 1989-04-28 | 1989-10-19 | CATV display with superimposed character information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1107872A JPH02288571A (en) | 1989-04-28 | 1989-04-28 | Catv system and its reception terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02288571A true JPH02288571A (en) | 1990-11-28 |
Family
ID=14470227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1107872A Pending JPH02288571A (en) | 1989-04-28 | 1989-04-28 | Catv system and its reception terminal equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH02288571A (en) |
| GB (1) | GB2232031A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8989561B1 (en) | 2008-05-29 | 2015-03-24 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
| US9038103B2 (en) | 2005-05-06 | 2015-05-19 | Rovi Guides, Inc. | Systems and methods for content surfing |
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|---|---|---|---|---|
| US5317391A (en) * | 1991-11-29 | 1994-05-31 | Scientific-Atlanta, Inc. | Method and apparatus for providing message information to subscribers in a cable television system |
| US5247364A (en) * | 1991-11-29 | 1993-09-21 | Scientific-Atlanta, Inc. | Method and apparatus for tuning data channels in a subscription television system having in-band data transmissions |
| FR2684831B1 (en) * | 1991-12-09 | 1994-03-18 | Nokia Consumer Electronics Franc | DEVICE FOR MODIFYING TELEVISION IMAGES TO BE VIEWED ON A SCREEN OF A TELEVISION RECEIVER. |
| EP0669761A3 (en) * | 1994-02-23 | 1999-03-03 | Hitachi, Ltd. | Television signal receiving apparatus incorporating an information retrieving and reproducing apparatus |
| BR9507311A (en) | 1994-04-08 | 1997-10-07 | Prevue International Inc | Interactive scrolling program guide |
| US5502504A (en) † | 1994-04-28 | 1996-03-26 | Prevue Networks, Inc. | Video mix program guide |
| GB2296148A (en) * | 1994-11-28 | 1996-06-19 | Snell & Wilcox Ltd | Retaining sub-titles in a wide screen television display |
| US5880768A (en) | 1995-04-06 | 1999-03-09 | Prevue Networks, Inc. | Interactive program guide systems and processes |
| US5654748A (en) * | 1995-05-05 | 1997-08-05 | Microsoft Corporation | Interactive program identification system |
| JP3572595B2 (en) * | 1995-07-21 | 2004-10-06 | ソニー株式会社 | Electronic program guide display control apparatus and method |
| US5874985A (en) * | 1995-08-31 | 1999-02-23 | Microsoft Corporation | Message delivery method for interactive televideo system |
| US6005602A (en) * | 1995-08-31 | 1999-12-21 | Microsoft Corporation | Message delivery method for interactive televideo system |
| DE19540172C2 (en) * | 1995-10-27 | 2002-07-18 | Micronas Munich Gmbh | Video receiving device with a teletext processing device |
| DE19610005A1 (en) * | 1996-03-14 | 1997-09-18 | Thomson Brandt Gmbh | On=screen=display television set |
| US6049333A (en) * | 1996-09-03 | 2000-04-11 | Time Warner Entertainment Company, L.P. | System and method for providing an event database in a telecasting system |
| US5850218A (en) | 1997-02-19 | 1998-12-15 | Time Warner Entertainment Company L.P. | Inter-active program guide with default selection control |
| US6061097A (en) * | 1997-05-22 | 2000-05-09 | United Video Properties, Inc. | Interactive television program guide with selectable non-program options |
| US6934963B1 (en) | 1998-09-22 | 2005-08-23 | United Video Properties, Inc. | Interactive television program guide with passive content |
| US7603685B2 (en) | 1998-11-03 | 2009-10-13 | United Video Properties, Inc. | Program guide system with combination category search |
| US20020124255A1 (en) | 1999-12-10 | 2002-09-05 | United Video Properties, Inc. | Systems and methods for coordinating interactive and passive advertisement and merchandising opportunities |
| US8490138B2 (en) | 2007-02-23 | 2013-07-16 | Rovi Guides, Inc. | Channel searching by content type |
| JP5566624B2 (en) * | 2009-04-08 | 2014-08-06 | 三菱電機株式会社 | Image display system |
| US8786702B2 (en) | 2009-08-31 | 2014-07-22 | Behavioral Recognition Systems, Inc. | Visualizing and updating long-term memory percepts in a video surveillance system |
| US8359616B2 (en) | 2009-09-30 | 2013-01-22 | United Video Properties, Inc. | Systems and methods for automatically generating advertisements using a media guidance application |
| US9288521B2 (en) | 2014-05-28 | 2016-03-15 | Rovi Guides, Inc. | Systems and methods for updating media asset data based on pause point in the media asset |
| US9948962B2 (en) | 2014-11-13 | 2018-04-17 | Time Warner Cable Enterprises Llc | Apparatus and methods for efficient delivery of electronic program guide data |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1370535A (en) * | 1973-05-09 | 1974-10-16 | British Broadcasting Corp | Transmission of alphanumeric data by television |
| GB2124056B (en) * | 1982-07-19 | 1986-10-29 | Ricoh Kk | Video tape recorder |
| US4665438A (en) * | 1986-01-03 | 1987-05-12 | North American Philips Corporation | Picture-in-picture color television receiver |
| JP2642925B2 (en) * | 1986-01-07 | 1997-08-20 | ソニー株式会社 | Television receiver |
| DE3612360A1 (en) * | 1986-04-12 | 1987-10-15 | Grundig Emv | DEVICE FOR SUBLITING TELEVISION SIGNALS |
| JP2794661B2 (en) * | 1986-09-20 | 1998-09-10 | ソニー株式会社 | TV receiver |
-
1989
- 1989-04-28 JP JP1107872A patent/JPH02288571A/en active Pending
- 1989-10-19 GB GB8923608A patent/GB2232031A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9038103B2 (en) | 2005-05-06 | 2015-05-19 | Rovi Guides, Inc. | Systems and methods for content surfing |
| US8989561B1 (en) | 2008-05-29 | 2015-03-24 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
| US9723363B2 (en) | 2008-05-29 | 2017-08-01 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
| US11245965B2 (en) | 2008-05-29 | 2022-02-08 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
| US11689768B2 (en) | 2008-05-29 | 2023-06-27 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2232031A (en) | 1990-11-28 |
| GB8923608D0 (en) | 1989-12-06 |
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