DE69223535T2 - Teilnehmersteuergerät mit gemeinsamen Störungsmodulen für Kabelfernsehen - Google Patents

Teilnehmersteuergerät mit gemeinsamen Störungsmodulen für Kabelfernsehen

Info

Publication number
DE69223535T2
DE69223535T2 DE69223535T DE69223535T DE69223535T2 DE 69223535 T2 DE69223535 T2 DE 69223535T2 DE 69223535 T DE69223535 T DE 69223535T DE 69223535 T DE69223535 T DE 69223535T DE 69223535 T2 DE69223535 T2 DE 69223535T2
Authority
DE
Germany
Prior art keywords
control device
cable television
subscriber control
common interference
interference modules
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.)
Expired - Fee Related
Application number
DE69223535T
Other languages
English (en)
Other versions
DE69223535D1 (de
Inventor
Aravanan Gurusami
Robert Chamberlin
Victor Jacek
Jeffrey Cox
Thomas Strong
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69223535D1 publication Critical patent/DE69223535D1/de
Application granted granted Critical
Publication of DE69223535T2 publication Critical patent/DE69223535T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04K3/40—Jamming having variable characteristics
    • H04K3/41—Jamming having variable characteristics characterized by the control of the jamming activation or deactivation time
    • 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
    • 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
DE69223535T 1991-03-22 1992-03-13 Teilnehmersteuergerät mit gemeinsamen Störungsmodulen für Kabelfernsehen Expired - Fee Related DE69223535T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/673,872 US5140633A (en) 1991-03-22 1991-03-22 Cable subscriber control device using shared jamming modules

Publications (2)

Publication Number Publication Date
DE69223535D1 DE69223535D1 (de) 1998-01-29
DE69223535T2 true DE69223535T2 (de) 1998-06-04

Family

ID=24704422

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69223535T Expired - Fee Related DE69223535T2 (de) 1991-03-22 1992-03-13 Teilnehmersteuergerät mit gemeinsamen Störungsmodulen für Kabelfernsehen

Country Status (5)

Country Link
US (1) US5140633A (de)
EP (1) EP0504991B1 (de)
JP (1) JP3373863B2 (de)
CA (1) CA2063517C (de)
DE (1) DE69223535T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5463689A (en) * 1988-03-10 1995-10-31 Scientific-Atlanta Interdiction method and apparatus with random mode jamming
US5289541A (en) * 1988-03-10 1994-02-22 Scientific-Atlanta, Inc. Interdiction method and apparatus with constant blanking and variable dwell times
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
WO1993026126A1 (en) * 1992-06-10 1993-12-23 Scientific-Atlanta, Inc. Interdiction method and apparatus with frequency change inhibit function
WO1993026127A1 (en) * 1992-06-10 1993-12-23 Scientific-Atlanta, Inc. Interdiction method and apparatus with direct memory control of variable frequency elements
US5317635A (en) * 1992-06-10 1994-05-31 Scientific-Atlanta, Inc. Interdiction method and apparatus with mode control for variable frequency elements
SE507718C2 (sv) * 1996-09-13 1998-07-06 Ericsson Telefon Ab L M Förfarande och anordning för att koda kabeltelevision
US6188870B1 (en) * 1996-10-07 2001-02-13 General Instrument Corporation Passive interdiction system for scrambling
US20110050216A1 (en) * 2009-09-01 2011-03-03 Adidas Ag Method And System For Limiting Interference In Magnetometer Fields
US9545222B2 (en) 2009-09-01 2017-01-17 Adidas Ag Garment with noninvasive method and system for monitoring physiological characteristics and athletic performance
US9326705B2 (en) 2009-09-01 2016-05-03 Adidas Ag Method and system for monitoring physiological and athletic performance characteristics of a subject
US9526419B2 (en) 2009-09-01 2016-12-27 Adidas Ag Garment for physiological characteristics monitoring

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039954A (en) * 1975-05-27 1977-08-02 Oak Holland B.V. Signal distribution device for a cable television
GB1554411A (en) * 1975-08-09 1979-10-17 Communications Patents Ltd Control systems
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
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
JPS61139176A (ja) * 1984-12-10 1986-06-26 Pioneer Electronic Corp Ｃａｔｖの視聴制御装置
US4825468A (en) * 1986-10-24 1989-04-25 Broadband Engineering, Inc. Video noise jammer
US5014309A (en) * 1988-03-10 1991-05-07 Scientific-Atlanta, Inc. Off-premises cable television channel interdiction method and apparatus
US4912760A (en) * 1988-03-10 1990-03-27 Scientific Atlanta, Inc. Off-premises cable television channel interdiction method and apparatus
CA2051415C (en) * 1990-02-06 1998-04-07 Lamar Edwin West, Jr. Interdiction method and apparatus with variable dwell time

Also Published As

Publication number Publication date
CA2063517C (en) 2002-01-08
EP0504991A2 (de) 1992-09-23
EP0504991A3 (en) 1993-02-24
CA2063517A1 (en) 1992-09-23
US5140633A (en) 1992-08-18
EP0504991B1 (de) 1997-12-17
DE69223535D1 (de) 1998-01-29
JPH0591511A (ja) 1993-04-09
JP3373863B2 (ja) 2003-02-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee