FR2389290A1 - Dispositif d'emission et de reception par lignes analogiques de signaux visiophoniques et de signaux numeriques - Google Patents
Dispositif d'emission et de reception par lignes analogiques de signaux visiophoniques et de signaux numeriquesInfo
- Publication number
- FR2389290A1 FR2389290A1 FR7712990A FR7712990A FR2389290A1 FR 2389290 A1 FR2389290 A1 FR 2389290A1 FR 7712990 A FR7712990 A FR 7712990A FR 7712990 A FR7712990 A FR 7712990A FR 2389290 A1 FR2389290 A1 FR 2389290A1
- Authority
- FR
- France
- Prior art keywords
- signals
- digital
- digital signals
- transmission
- videophone
- 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
Links
Classifications
-
- 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
- H04N7/084—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 with signal insertion during the horizontal blanking interval only
- H04N7/085—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 with signal insertion during the horizontal blanking interval only the inserted signal being digital
-
- 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
- H04N7/087—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 with signal insertion during the vertical blanking interval only
- H04N7/088—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 with signal insertion during the vertical blanking interval only the inserted signal being digital
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Closed-Circuit Television Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
a. Transmission de signaux numériques mélangés aux signaux de synchronisation et aux signaux vidéo analogiques issus d'un visiophone. b. La partie réception du dispositif permet d'insérer un premier groupe de signaux numériques dans les intervalles de retour de lignes et un second groupe de signaux numériques dans les intervalles d'aller des lignes disponibles du signal de retour de trame. Les signaux numériques de chaque groupe sont multiplexés et sont convertis en un signal analogique à un débit prédéterminé selon un code à 2**N niveaux qui est compatible avec la bande passante de la ligne visiophonique de transmission. Les signaux de synchronisation ont des créneaux réduits à des largeurs convenables pour leur détection. La partie réception du dispositif permet de reconstituer chaque signal numérique initial reçu au moyen d'une conversion du code à 2**N niveaux en code binaire, et de reconstituer les signaux de synchronisation initiaux. c. Installation visiophonique jumelée à des terminaux de données numériques.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7712990A FR2389290A1 (fr) | 1977-04-29 | 1977-04-29 | Dispositif d'emission et de reception par lignes analogiques de signaux visiophoniques et de signaux numeriques |
ES467786A ES467786A1 (es) | 1977-04-29 | 1978-03-11 | Sistema de transmision por lineas analogicas de senales de video y de sincronizacion analogicas mezcladas con senales de datos numericos sincronicos. |
US05/890,497 US4191969A (en) | 1977-04-29 | 1978-03-27 | Video composite transmission system integrating encoded data channels into blanking and synchronizing signal |
CA300,712A CA1127752A (fr) | 1977-04-29 | 1978-04-07 | Systeme de transmission video composite integrant les canaux de donnees codees au signal de suppression et de synchronisation |
NL7803789A NL7803789A (nl) | 1977-04-29 | 1978-04-10 | Systeem voor het over analoge lijnen uitzenden en ont- vangen van visiofonische en numerieke signalen. |
SE7804770A SE428624B (sv) | 1977-04-29 | 1978-04-26 | Anordning for sammansatt videotransmission |
SE7804770D SE7804770L (sv) | 1977-04-29 | 1978-04-26 | System for utsendande och mottagande medelst analoglinjer av visiofona och numeriska signaler |
GB17039/78A GB1562381A (en) | 1977-04-29 | 1978-04-28 | Video composite transmission system integrating encoded data channels into blanking and synchronizing signal |
DE19782818704 DE2818704A1 (de) | 1977-04-29 | 1978-04-28 | Uebertragungssystem fuer die uebertragung analoger bild- und synchronisiersignale und zugemischer synchroner numerischer datensignale ueber analogleitungen |
JP5024578A JPS53135509A (en) | 1977-04-29 | 1978-04-28 | Composite video transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7712990A FR2389290A1 (fr) | 1977-04-29 | 1977-04-29 | Dispositif d'emission et de reception par lignes analogiques de signaux visiophoniques et de signaux numeriques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2389290A1 true FR2389290A1 (fr) | 1978-11-24 |
FR2389290B1 FR2389290B1 (fr) | 1982-10-15 |
Family
ID=9190098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7712990A Granted FR2389290A1 (fr) | 1977-04-29 | 1977-04-29 | Dispositif d'emission et de reception par lignes analogiques de signaux visiophoniques et de signaux numeriques |
Country Status (9)
Country | Link |
---|---|
US (1) | US4191969A (fr) |
JP (1) | JPS53135509A (fr) |
CA (1) | CA1127752A (fr) |
DE (1) | DE2818704A1 (fr) |
ES (1) | ES467786A1 (fr) |
FR (1) | FR2389290A1 (fr) |
GB (1) | GB1562381A (fr) |
NL (1) | NL7803789A (fr) |
SE (2) | SE7804770L (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2438401A1 (fr) * | 1978-10-05 | 1980-04-30 | Thomson Csf | Procede de transmission d'un signal analogique audiofrequence pendant les intervalles de synchronisation de ligne-trame d'un signal de television et dispositif de mise en oeuvre de ce procede |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4275416A (en) * | 1980-02-28 | 1981-06-23 | Rca Corp. | PCM Detector |
US4380027A (en) | 1980-12-08 | 1983-04-12 | William Leventer | Data encoding for television |
US4514760A (en) * | 1983-02-17 | 1985-04-30 | Rca Corporation | Digital television receiver with time-multiplexed analog-to-digital converter |
US4716585A (en) | 1985-04-05 | 1987-12-29 | Datapoint Corporation | Gain switched audio conferencing network |
US4710917A (en) * | 1985-04-08 | 1987-12-01 | Datapoint Corporation | Video conferencing network |
EP0215604A3 (fr) * | 1985-09-11 | 1988-10-12 | Royal Children's Hospital | Système d'enregistrement de données vidéo et analogues |
US4849817A (en) * | 1987-02-19 | 1989-07-18 | Isix, Inc. | Video system, method and apparatus for incorporating audio or data in video scan intervals |
GB2213341B (en) * | 1987-12-08 | 1992-01-15 | British Broadcasting Corp | Method and apparatus for transmitting a digitally assisted television signal |
EP0401261A4 (en) * | 1988-02-11 | 1992-09-16 | Peter Gregory Montgomery | Synchronous, multiple channel analogue and audio-visual record and playback unit |
US5119192A (en) * | 1988-10-13 | 1992-06-02 | Matsushita Electric Industrial Co., Ltd. | Television signal processor having means for comparing and deleting coincident video signal components for transmission |
US5014267A (en) * | 1989-04-06 | 1991-05-07 | Datapoint Corporation | Video conferencing network |
EP0595790B1 (fr) * | 1991-04-18 | 1998-12-02 | KONLE, Tilmar | Méthode pour transmettre une information digitale additionnelle dans une ligne d'un signal de télévision |
US5426466A (en) * | 1992-12-31 | 1995-06-20 | Emhiser Research Limited | Composite video signal with audio |
AU6438994A (en) * | 1994-02-24 | 1995-09-11 | Aktsionernoe Obschestvo Zakrytogo Tipa "Tv Inform" | Method of transmitting and receiving an additional information signal with a television image signal, and variants of a device for carrying out said method |
WO1995029558A1 (fr) * | 1994-04-20 | 1995-11-02 | Shoot The Moon Products, Inc. | Procede et dispoisitif d'emboitement de signaux secondaires a l'interieur d'un signal de television |
US5777664A (en) * | 1994-11-18 | 1998-07-07 | Canon Kabushiki Kaisha | Video communication system using a repeater to communicate to a plurality of terminals |
JP3371290B2 (ja) * | 1995-01-30 | 2003-01-27 | ソニー株式会社 | データ伝送装置、データ伝送方法およびそれを適用したビデオカメラシステム |
KR100188084B1 (ko) * | 1995-05-12 | 1999-06-01 | 김광호 | 비디오 신호선을 이용한 오디오 데이타의 전달 장치 및 그 방법 |
DE19522590C2 (de) * | 1995-06-16 | 2001-05-17 | Deutsche Telekom Ag | Verfahren und Vorrichtung zur Zusatzdatenübertragung in TV-Kanälen |
RU2065258C1 (ru) * | 1995-06-20 | 1996-08-10 | Алексей Георгиевич Петропавловский | Способ вещания телепрограмм с синхронными переводами (варианты) |
US5940137A (en) * | 1996-03-01 | 1999-08-17 | Trw Inc. | Symbol timing generation and recovery for data transmission in an analog video signal |
US6064440A (en) * | 1998-01-08 | 2000-05-16 | Navis Digital Media Systems | Apparatus for inserting data into the vertical blanking interval of a video signal |
US7064778B1 (en) * | 1999-09-10 | 2006-06-20 | Pelco Incorporated | Multi-camera system for implementing digital slow shutter video processing using shared video memory |
JP2001352318A (ja) * | 2000-04-05 | 2001-12-21 | Sony Corp | 送信回路とその方法、受信回路とその方法およびデータ通信装置 |
KR20010095265A (ko) * | 2000-04-05 | 2001-11-03 | 이데이 노부유끼 | 송신 회로와 그 방법, 수신 회로와 그 방법 및 데이터통신 장치 |
DE10101750A1 (de) * | 2000-09-21 | 2002-04-18 | Matthias Zahn | Verfahren zur Übertragung von Daten mit einem Fernsehsignal |
US7652275B2 (en) * | 2006-07-28 | 2010-01-26 | Mitutoyo Corporation | Non-contact probe control interface |
US7508529B2 (en) * | 2006-07-31 | 2009-03-24 | Mitutoyo Corporation | Multi-range non-contact probe |
CN107888567B (zh) | 2017-10-23 | 2020-08-04 | 浙江大华技术股份有限公司 | 一种复合多媒体信号的传输方法及装置 |
CN112954165B (zh) * | 2021-02-09 | 2022-10-04 | 杭州海康威视数字技术股份有限公司 | 一种模拟摄像机、解码器、监控系统 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1237440A (en) * | 1967-06-30 | 1971-06-30 | Matsushita Electric Ind Co Ltd | Signal time base conversion systems |
JPS5037972B1 (fr) * | 1969-05-22 | 1975-12-06 | ||
US4005265A (en) * | 1970-11-13 | 1977-01-25 | U.S. Philips Corporation | Videophone system synchronizer |
NL7016628A (fr) * | 1970-11-13 | 1972-05-16 | ||
US3819852A (en) * | 1972-08-29 | 1974-06-25 | P Wolf | Method of reducing the interference signals during the transmission of af signals in time-compressed form |
US3900887A (en) * | 1973-01-18 | 1975-08-19 | Nippon Steel Corp | Method of simultaneous multiplex recording of picture and data and of regenerating such record and apparatus therefor |
DE2453441B2 (de) * | 1974-11-12 | 1976-12-16 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur durchfuehrung einer digitalen breitbandigen signaluebertragung |
-
1977
- 1977-04-29 FR FR7712990A patent/FR2389290A1/fr active Granted
-
1978
- 1978-03-11 ES ES467786A patent/ES467786A1/es not_active Expired
- 1978-03-27 US US05/890,497 patent/US4191969A/en not_active Expired - Lifetime
- 1978-04-07 CA CA300,712A patent/CA1127752A/fr not_active Expired
- 1978-04-10 NL NL7803789A patent/NL7803789A/xx not_active Application Discontinuation
- 1978-04-26 SE SE7804770D patent/SE7804770L/xx not_active Application Discontinuation
- 1978-04-26 SE SE7804770A patent/SE428624B/sv not_active IP Right Cessation
- 1978-04-28 DE DE19782818704 patent/DE2818704A1/de active Granted
- 1978-04-28 JP JP5024578A patent/JPS53135509A/ja active Granted
- 1978-04-28 GB GB17039/78A patent/GB1562381A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2438401A1 (fr) * | 1978-10-05 | 1980-04-30 | Thomson Csf | Procede de transmission d'un signal analogique audiofrequence pendant les intervalles de synchronisation de ligne-trame d'un signal de television et dispositif de mise en oeuvre de ce procede |
Also Published As
Publication number | Publication date |
---|---|
US4191969A (en) | 1980-03-04 |
DE2818704A1 (de) | 1978-11-02 |
DE2818704C2 (fr) | 1987-02-05 |
JPS6311838B2 (fr) | 1988-03-16 |
CA1127752A (fr) | 1982-07-13 |
GB1562381A (en) | 1980-03-12 |
SE428624B (sv) | 1983-07-11 |
JPS53135509A (en) | 1978-11-27 |
SE7804770L (sv) | 1978-10-30 |
ES467786A1 (es) | 1978-10-16 |
FR2389290B1 (fr) | 1982-10-15 |
NL7803789A (nl) | 1978-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |