JPS608675B2 - ケ−ブルテレビジヨン用信号分配器 - Google Patents

ケ−ブルテレビジヨン用信号分配器

Info

Publication number
JPS608675B2
JPS608675B2 JP50069455A JP6945575A JPS608675B2 JP S608675 B2 JPS608675 B2 JP S608675B2 JP 50069455 A JP50069455 A JP 50069455A JP 6945575 A JP6945575 A JP 6945575A JP S608675 B2 JPS608675 B2 JP S608675B2
Authority
JP
Japan
Prior art keywords
switch
line
diode
high frequency
drop
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
Application number
JP50069455A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5178621A (ja
Inventor
デン ト−ンデル ピエ−トル
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.)
OOKU KOMYUNIKEESHONZU Inc SHIIEITEIIBIIDEIBIJON
Original Assignee
OOKU KOMYUNIKEESHONZU Inc SHIIEITEIIBIIDEIBIJON
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 OOKU KOMYUNIKEESHONZU Inc SHIIEITEIIBIIDEIBIJON filed Critical OOKU KOMYUNIKEESHONZU Inc SHIIEITEIIBIIDEIBIJON
Publication of JPS5178621A publication Critical patent/JPS5178621A/ja
Publication of JPS608675B2 publication Critical patent/JPS608675B2/ja
Expired 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
    • H04K3/42—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Details Of Television Systems (AREA)
JP50069455A 1974-12-24 1975-06-09 ケ−ブルテレビジヨン用信号分配器 Expired JPS608675B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7416880A NL182689C (nl) 1974-12-24 1974-12-24 Signaalverdeelinrichting voor een hoogfrequent kabelnetwerk.
NL7416880 1974-12-24

Publications (2)

Publication Number Publication Date
JPS5178621A JPS5178621A (ja) 1976-07-08
JPS608675B2 true JPS608675B2 (ja) 1985-03-05

Family

ID=19822721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50069455A Expired JPS608675B2 (ja) 1974-12-24 1975-06-09 ケ−ブルテレビジヨン用信号分配器

Country Status (13)

Country Link
JP (1) JPS608675B2 (fr)
AT (1) AT361996B (fr)
BE (1) BE836589A (fr)
CA (1) CA1033053A (fr)
DE (1) DE2558147A1 (fr)
DK (1) DK146915C (fr)
ES (1) ES443805A1 (fr)
FI (1) FI67006C (fr)
FR (1) FR2296335A1 (fr)
GB (1) GB1507859A (fr)
IT (1) IT1052630B (fr)
NL (1) NL182689C (fr)
SE (1) SE420036B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554411A (en) 1975-08-09 1979-10-17 Communications Patents Ltd Control systems
FR2336842B1 (fr) * 1976-08-06 1987-02-27 Stern Joseph Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci
DE2725250C3 (de) * 1977-06-03 1982-03-18 Siemens AG, 1000 Berlin und 8000 München Kabelfernsehanlage mit abschaltbaren Teilnehmeranschlüssen
DE3045512C2 (de) * 1980-12-03 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektronische Durchschalteinrichtung für Fernseh- und Tonrundfunkprogramme
JPS58221577A (ja) * 1982-06-18 1983-12-23 Yagi Antenna Co Ltd Ｃａｔｖ信号分配方式
JPS5921187A (ja) * 1982-07-27 1984-02-03 Uro Denshi Kogyo Kk 有線放送共同受信用分岐・分配器
US4521809A (en) * 1982-12-29 1985-06-04 North American Philips Corporation Method and apparatus for controlling access to selected television programs
EP0128554B1 (fr) * 1983-06-10 1988-03-30 Tocom, Inc. Système de transpondeur principal/secondaire
GB2161679B (en) * 1984-07-06 1988-02-24 Cabletime Ltd Improvements in or relating to signal jamming apparatuses for frequency division multiplex systems
FR2615342B1 (fr) * 1987-05-13 1991-09-13 Applic Realisa Electro Systeme de teledistribution comprenant au moins une chaine de television a peage
DE3840254C1 (fr) * 1988-11-29 1990-06-07 Neuberger Nachrichten- Und Antennentechnik Gmbh, 8000 Muenchen, De

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4869413A (fr) * 1971-12-17 1973-09-20 Hughes Aircraft Co
JPS4980918A (fr) * 1972-08-03 1974-08-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4869413A (fr) * 1971-12-17 1973-09-20 Hughes Aircraft Co
JPS4980918A (fr) * 1972-08-03 1974-08-05

Also Published As

Publication number Publication date
SE420036B (sv) 1981-09-07
IT1052630B (it) 1981-07-20
CA1033053A (fr) 1978-06-13
JPS5178621A (ja) 1976-07-08
DE2558147A1 (de) 1976-07-01
FI753640A (fr) 1976-06-25
FI67006B (fi) 1984-08-31
ES443805A1 (es) 1977-04-16
ATA955075A (de) 1980-09-15
DK146915B (da) 1984-02-06
SE7514561L (sv) 1976-06-25
FR2296335B3 (fr) 1980-06-20
NL182689C (nl) 1988-04-18
FI67006C (fi) 1984-12-10
FR2296335A1 (fr) 1976-07-23
DK146915C (da) 1984-07-16
AT361996B (de) 1981-04-10
GB1507859A (en) 1978-04-19
DK586075A (da) 1976-06-25
BE836589A (fr) 1976-06-14
NL182689B (nl) 1987-11-16
NL7416880A (nl) 1976-06-28

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