MX167007B - Metodo y aparato de interdiccion de canal de cabletelevision fuera del local - Google Patents
Metodo y aparato de interdiccion de canal de cabletelevision fuera del localInfo
- Publication number
- MX167007B MX167007B MX015219A MX1521989A MX167007B MX 167007 B MX167007 B MX 167007B MX 015219 A MX015219 A MX 015219A MX 1521989 A MX1521989 A MX 1521989A MX 167007 B MX167007 B MX 167007B
- Authority
- MX
- Mexico
- Prior art keywords
- voltage controlled
- interdiction
- frequency
- oscillators
- channel
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/20—Countermeasures against jamming
- H04K3/28—Countermeasures against jamming with jamming and anti-jamming mechanisms both included in a same device or system, e.g. wherein anti-jamming includes prevention of undesired self-jamming resulting from jamming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/40—Jamming having variable characteristics
- H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/86—Jamming or countermeasure characterized by its function related to preventing deceptive jamming or unauthorized interrogation or access, e.g. WLAN access or RFID reading
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/166—Passage/non-passage of the television signal, e.g. jamming, band suppression
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/14—Jamming or countermeasure used for a particular application for the transfer of light or images, e.g. for video-surveillance, for television or from a computer screen
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/40—Jamming having variable characteristics
- H04K3/43—Jamming having variable characteristics characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area
Abstract
La presente invención se refiere a un aparato de interdicción de canal de calidad superior de cabletelevisión para trabar selectivamente la programación de calidad superior no autorizada transmitida a un abonado que consiste de; una pluralidad de m osciladores y filtros asociados a los osciladores controlados para prohibir separadamente dentro de una porción contínua asignada de un espectro de cabletelevisión de banda amplia, la suma de todas las porciones asignadas constituyen el espectro total que va a trabarse, la porción contínua asignada del espectro de selecciona de maneta tal que la interferencia de la armónica de frecuencia de la señal de trabazón puede atenuarse mediante un medio de filtro, y un medio de accionamiento y control microprocesadore, que responde a una comunicación dirigida desde un punto principal, para hacer accionar y controlar selectivamente una pluralidad de n frecuencias de trabazón que se proporciona mediante la pluralidad de m osciladores controlados, siendo m menor o igual a cuatro.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/166,302 US4912760A (en) | 1988-03-10 | 1988-03-10 | Off-premises cable television channel interdiction method and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
MX167007B true MX167007B (es) | 1993-02-22 |
Family
ID=22602679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX015219A MX167007B (es) | 1988-03-10 | 1989-03-10 | Metodo y aparato de interdiccion de canal de cabletelevision fuera del local |
Country Status (10)
Country | Link |
---|---|
US (1) | US4912760A (es) |
EP (1) | EP0403570B1 (es) |
JP (1) | JPH03504432A (es) |
CN (1) | CN1037626A (es) |
AT (1) | ATE147916T1 (es) |
AU (1) | AU3446089A (es) |
CA (1) | CA1334444C (es) |
DE (1) | DE68927674T2 (es) |
MX (1) | MX167007B (es) |
WO (1) | WO1989008966A1 (es) |
Families Citing this family (71)
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US5287539A (en) * | 1988-03-10 | 1994-02-15 | Scientific-Atlanta, Inc. | Interdiction program denial system for jamming audio and video signals |
US5463689A (en) * | 1988-03-10 | 1995-10-31 | Scientific-Atlanta | Interdiction method and apparatus with random mode jamming |
US5303295A (en) * | 1988-03-10 | 1994-04-12 | Scientific-Atlanta, Inc. | Enhanced versatility of a program control by a combination of technologies |
US5289541A (en) * | 1988-03-10 | 1994-02-22 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with constant blanking and variable dwell times |
US5319454A (en) * | 1990-11-13 | 1994-06-07 | Scientific-Atlanta, Inc. | CATV system enabling access to premium (pay per view) program events by bar code data entry |
US5467397A (en) * | 1988-03-10 | 1995-11-14 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with variable dwell time |
US5231660A (en) * | 1988-03-10 | 1993-07-27 | Scientific-Atlanta, Inc. | Compensation control for off-premises CATV system |
US5109286A (en) * | 1988-03-10 | 1992-04-28 | Scientific-Atlanta, Inc. | CATV reverse path manifold system |
US5142574A (en) * | 1988-03-10 | 1992-08-25 | West Jr Lamar | Optimum amplitude and frequency of jamming carrier in interdiction program denial system |
US5505901A (en) * | 1988-03-10 | 1996-04-09 | Scientific-Atlanta, Inc. | CATV pay per view interdiction system method and apparatus |
US5345504A (en) * | 1988-03-10 | 1994-09-06 | Scientific-Atlanta, Inc. | Differential compensation control for off-premises CATV system |
US5208854A (en) * | 1988-03-10 | 1993-05-04 | Scientific-Atlanta, Inc. | Picture carrier controlled automatic gain control circuit for cable television interdiction or jamming apparatus |
US5144267A (en) * | 1989-12-06 | 1992-09-01 | Scientific-Atlanta, Inc. | Variable slope network for off-premises CATV system |
AU636021B2 (en) * | 1990-02-06 | 1993-04-08 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with variable dwell time |
US5052047A (en) * | 1990-04-10 | 1991-09-24 | Zenith Electronics Corporation | Modulator-remodulator with common local oscilator |
US5587734A (en) * | 1990-09-28 | 1996-12-24 | Ictv, Inc. | User interface for selecting television information services through pseudo-channel access |
US5594507A (en) * | 1990-09-28 | 1997-01-14 | Ictv, Inc. | Compressed digital overlay controller and method for MPEG type video signal |
US5557316A (en) * | 1990-09-28 | 1996-09-17 | Ictv, Inc. | System for distributing broadcast television services identically on a first bandwidth portion of a plurality of express trunks and interactive services over a second bandwidth portion of each express trunk on a subscriber demand basis |
US5883661A (en) * | 1990-09-28 | 1999-03-16 | Ictv, Inc. | Output switching for load levelling across multiple service areas |
US5412720A (en) * | 1990-09-28 | 1995-05-02 | Ictv, Inc. | Interactive home information system |
US5220420A (en) * | 1990-09-28 | 1993-06-15 | Inteletext Systems, Inc. | Interactive home information system for distributing compressed television programming |
US5526034A (en) * | 1990-09-28 | 1996-06-11 | Ictv, Inc. | Interactive home information system with signal assignment |
JPH0537936A (ja) * | 1990-11-08 | 1993-02-12 | Pioneer Electron Corp | 信号発振装置 |
ATE181791T1 (de) * | 1990-11-27 | 1999-07-15 | Blonder Tongue Lab | Sperrsystemverfahren und -gerät für ein pro einschalten zu bezahlendes kabelfernsehprogramm |
US5331412A (en) * | 1990-11-27 | 1994-07-19 | Scientific-Atlanta, Inc. | Tamper resistant apparatus for a CATV system |
US5245420A (en) * | 1990-11-27 | 1993-09-14 | Scientific-Atlanta, Inc. | CATV pay per view interdiction system |
US5233652A (en) * | 1991-02-19 | 1993-08-03 | At&T Bell Laboratories | Selective off-premises jamming for premium CATV service |
US5255318A (en) * | 1991-03-22 | 1993-10-19 | North American Philips Corporation | Expandable cable television subscriber control system |
US5140633A (en) * | 1991-03-22 | 1992-08-18 | North American Philips Corporation | Cable subscriber control device using shared jamming modules |
JPH0575349A (ja) * | 1991-09-11 | 1993-03-26 | Pioneer Electron Corp | 発振装置 |
US5243647A (en) * | 1992-06-10 | 1993-09-07 | Scientific-Atlanta, Inc. | Method and apparatus for broadband signal distribution |
US5265160A (en) * | 1992-06-10 | 1993-11-23 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with pulsed mode jamming |
WO1993026125A1 (en) * | 1992-06-10 | 1993-12-23 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with random mode jamming |
US5278908A (en) * | 1992-06-10 | 1994-01-11 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with programmable jamming effectiveness |
WO1993026126A1 (en) * | 1992-06-10 | 1993-12-23 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with frequency change inhibit function |
US5317635A (en) * | 1992-06-10 | 1994-05-31 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with mode control for variable frequency elements |
US5311325A (en) * | 1992-06-10 | 1994-05-10 | Scientific Atlanta, Inc. | Method and apparatus for providing periodic subscription television services |
WO1993026127A1 (en) * | 1992-06-10 | 1993-12-23 | Scientific-Atlanta, Inc. | Interdiction method and apparatus with direct memory control of variable frequency elements |
US5604528A (en) * | 1992-06-10 | 1997-02-18 | Scientific-Atlanta, Inc. | Method and apparatus for providing periodic subscription television services |
US5243651A (en) * | 1992-06-10 | 1993-09-07 | Scientific-Atlanta, Inc. | Diagnostic method and apparatus for a cable television interdiction system |
US5436822A (en) * | 1992-07-31 | 1995-07-25 | Scientific-Atlanta, Inc. | Polarity reversing DC power supply for remotely located equipment |
US5396642A (en) * | 1992-08-14 | 1995-03-07 | Electroline Equipment Inc. | Variable frequency CATV jamming method and apparatus |
US5367571A (en) * | 1992-12-02 | 1994-11-22 | Scientific-Atlanta, Inc. | Subscriber terminal with plug in expansion card |
US5440632A (en) * | 1992-12-02 | 1995-08-08 | Scientific-Atlanta, Inc. | Reprogrammable subscriber terminal |
US6166728A (en) * | 1992-12-02 | 2000-12-26 | Scientific-Atlanta, Inc. | Display system with programmable display parameters |
US20050114906A1 (en) * | 1993-05-03 | 2005-05-26 | Ictv, Inc. | System for interactive television |
FR2708167B1 (fr) * | 1993-07-20 | 1995-09-01 | Telediffusion Fse | Procédé et système de commande de mode d'accès à des signaux, notamment d'image. |
US5640452A (en) * | 1995-04-28 | 1997-06-17 | Trimble Navigation Limited | Location-sensitive decryption of an encrypted message |
SE507718C2 (sv) * | 1996-09-13 | 1998-07-06 | Ericsson Telefon Ab L M | Förfarande och anordning för att koda kabeltelevision |
US5905942A (en) * | 1997-02-18 | 1999-05-18 | Lodgenet Entertainment Corporation | Multiple dwelling unit interactive audio/video distribution system |
US6205582B1 (en) | 1997-12-09 | 2001-03-20 | Ictv, Inc. | Interactive cable television system with frame server |
JP2001526506A (ja) * | 1997-12-09 | 2001-12-18 | アイシーティーブイ・インク | 対話型ケーブルテレビジョンシステム上の仮想lan印刷 |
US6694517B1 (en) | 1999-08-27 | 2004-02-17 | Diversified Control, Inc. | Broadband communication network with low power addressable tap system for controlling subscriber access |
US7069578B1 (en) | 2000-02-04 | 2006-06-27 | Scientific-Atlanta, Inc. | Settop cable television control device and method including bootloader software and code version table for maintaining and updating settop receiver operating system software |
US6519773B1 (en) * | 2000-02-08 | 2003-02-11 | Sherjil Ahmed | Method and apparatus for a digitized CATV network for bundled services |
US20040125239A1 (en) * | 2002-12-26 | 2004-07-01 | David Rahn | Television tuner supporting channel hopping |
US8074248B2 (en) | 2005-07-26 | 2011-12-06 | Activevideo Networks, Inc. | System and method for providing video content associated with a source image to a television in a communication network |
US9826197B2 (en) | 2007-01-12 | 2017-11-21 | Activevideo Networks, Inc. | Providing television broadcasts over a managed network and interactive content over an unmanaged network to a client device |
EP2632165B1 (en) * | 2007-01-12 | 2015-09-30 | ActiveVideo Networks, Inc. | Interactive encoded content system including object models for viewing on a remote device |
JP5345872B2 (ja) * | 2009-02-26 | 2013-11-20 | 中国電力株式会社 | 高速通信システム |
WO2012051528A2 (en) | 2010-10-14 | 2012-04-19 | Activevideo Networks, Inc. | Streaming digital video between video devices using a cable television system |
WO2012079782A1 (en) * | 2010-12-17 | 2012-06-21 | Telefonica, S.A. | Method and device for distribution of multimedia communication channels in a passive optical network |
WO2012138660A2 (en) | 2011-04-07 | 2012-10-11 | Activevideo Networks, Inc. | Reduction of latency in video distribution networks using adaptive bit rates |
EP2815582B1 (en) | 2012-01-09 | 2019-09-04 | ActiveVideo Networks, Inc. | Rendering of an interactive lean-backward user interface on a television |
US9800945B2 (en) | 2012-04-03 | 2017-10-24 | Activevideo Networks, Inc. | Class-based intelligent multiplexing over unmanaged networks |
US9123084B2 (en) | 2012-04-12 | 2015-09-01 | Activevideo Networks, Inc. | Graphical application integration with MPEG objects |
WO2014145921A1 (en) | 2013-03-15 | 2014-09-18 | Activevideo Networks, Inc. | A multiple-mode system and method for providing user selectable video content |
US9294785B2 (en) | 2013-06-06 | 2016-03-22 | Activevideo Networks, Inc. | System and method for exploiting scene graph information in construction of an encoded video sequence |
US9219922B2 (en) | 2013-06-06 | 2015-12-22 | Activevideo Networks, Inc. | System and method for exploiting scene graph information in construction of an encoded video sequence |
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US29997A (en) * | 1860-09-11 | Machine foe | ||
US3202758A (en) * | 1961-11-09 | 1965-08-24 | Paramount Pictures Corp | Subscription-television programscrambling system |
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US4343042A (en) * | 1979-07-10 | 1982-08-03 | Cablebus Systems Corporation | Bi-directional data transmission and control system |
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US4326289A (en) * | 1980-02-28 | 1982-04-20 | Dickinson Robert V C | Expandable communication system |
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US4434436A (en) * | 1981-07-13 | 1984-02-28 | Bruce Merrill | Addressable premium channel obfuscation device for cable television systems |
US4450481A (en) * | 1981-08-25 | 1984-05-22 | E-Com Corporation | Tamper-resistant, expandable communications system |
NL8301943A (nl) * | 1982-07-01 | 1984-02-01 | Plessey Overseas | Zender. |
JPS5961384A (ja) * | 1982-09-30 | 1984-04-07 | Nec Home Electronics Ltd | Catvシステム用ジヤミング信号発生装置 |
US4521809A (en) * | 1982-12-29 | 1985-06-04 | North American Philips Corporation | Method and apparatus for controlling access to selected television programs |
JPS60245385A (ja) * | 1984-05-18 | 1985-12-05 | Pioneer Electronic Corp | Catvシステムにおける集中視聴制御方式 |
JPS6194480A (ja) * | 1984-10-15 | 1986-05-13 | Pioneer Electronic Corp | ジヤミング信号発生回路 |
US4682359A (en) * | 1984-10-15 | 1987-07-21 | Blonder-Tongue Laboratories, Inc. | Television picture and sound scrambler and method |
JPS61139176A (ja) * | 1984-12-10 | 1986-06-26 | Pioneer Electronic Corp | Catvの視聴制御装置 |
-
1988
- 1988-03-10 US US07/166,302 patent/US4912760A/en not_active Expired - Lifetime
-
1989
- 1989-03-09 CA CA000593242A patent/CA1334444C/en not_active Expired - Fee Related
- 1989-03-10 CN CN89102242A patent/CN1037626A/zh active Pending
- 1989-03-10 MX MX015219A patent/MX167007B/es unknown
- 1989-03-10 AT AT89904932T patent/ATE147916T1/de not_active IP Right Cessation
- 1989-03-10 AU AU34460/89A patent/AU3446089A/en not_active Abandoned
- 1989-03-10 WO PCT/US1989/000907 patent/WO1989008966A1/en active IP Right Grant
- 1989-03-10 EP EP89904932A patent/EP0403570B1/en not_active Expired - Lifetime
- 1989-03-10 DE DE68927674T patent/DE68927674T2/de not_active Expired - Fee Related
- 1989-03-10 JP JP1504674A patent/JPH03504432A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AU3446089A (en) | 1989-10-05 |
CN1037626A (zh) | 1989-11-29 |
ATE147916T1 (de) | 1997-02-15 |
EP0403570A4 (en) | 1992-07-08 |
US4912760A (en) | 1990-03-27 |
CA1334444C (en) | 1995-02-14 |
EP0403570A1 (en) | 1990-12-27 |
WO1989008966A1 (en) | 1989-09-21 |
EP0403570B1 (en) | 1997-01-15 |
DE68927674D1 (de) | 1997-02-27 |
JPH03504432A (ja) | 1991-09-26 |
DE68927674T2 (de) | 1997-05-15 |
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