FR2239826A1 - Transmission of information by cable - enables the subscriber to send a pre-determined message to a central post - Google Patents

Transmission of information by cable - enables the subscriber to send a pre-determined message to a central post

Info

Publication number
FR2239826A1
FR2239826A1 FR7426936A FR7426936A FR2239826A1 FR 2239826 A1 FR2239826 A1 FR 2239826A1 FR 7426936 A FR7426936 A FR 7426936A FR 7426936 A FR7426936 A FR 7426936A FR 2239826 A1 FR2239826 A1 FR 2239826A1
Authority
FR
France
Prior art keywords
information
message
cable
transmission
central post
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
Application number
FR7426936A
Other languages
French (fr)
Other versions
FR2239826B3 (en
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.)
Oak Industries Inc
Original Assignee
Oak Industries Inc
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
Priority claimed from US05/385,307 external-priority patent/US3943492A/en
Application filed by Oak Industries Inc filed Critical Oak Industries Inc
Publication of FR2239826A1 publication Critical patent/FR2239826A1/en
Application granted granted Critical
Publication of FR2239826B3 publication Critical patent/FR2239826B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/29—Arrangements for monitoring broadcast services or broadcast-related services
    • H04H60/33—Arrangements for monitoring the users' behaviour or opinions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/78—CATV [Community Antenna Television] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/93—Wired transmission systems
    • H04H60/96—CATV systems
    • H04H60/97—CATV systems using uplink of the CATV systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • General Health & Medical Sciences (AREA)
  • Social Psychology (AREA)
  • Small-Scale Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Transmission of information from a number of subscribers to a central post is necessary for television by cable and security systems. The subscribers equipment transmits the information in a coded form in a repetitive manner to the central receiver where the message is recorded and memorised. The message contains a pre-determined fixed number of data bits but the length of message may vary between set limits. The message is memorised for comparison checks for authenticity.
FR7426936A 1973-08-03 1974-08-02 Transmission of information by cable - enables the subscriber to send a pre-determined message to a central post Granted FR2239826A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/385,307 US3943492A (en) 1972-08-17 1973-08-03 Plural storage system

Publications (2)

Publication Number Publication Date
FR2239826A1 true FR2239826A1 (en) 1975-02-28
FR2239826B3 FR2239826B3 (en) 1977-06-03

Family

ID=23520866

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7426936A Granted FR2239826A1 (en) 1973-08-03 1974-08-02 Transmission of information by cable - enables the subscriber to send a pre-determined message to a central post

Country Status (6)

Country Link
JP (1) JPS5051214A (en)
BE (1) BE818475A (en)
CA (1) CA1018660A (en)
CH (1) CH577732A5 (en)
FR (1) FR2239826A1 (en)
NL (1) NL7409888A (en)

Also Published As

Publication number Publication date
JPS5051214A (en) 1975-05-08
CH577732A5 (en) 1976-07-15
FR2239826B3 (en) 1977-06-03
CA1018660A (en) 1977-10-04
NL7409888A (en) 1975-02-05
BE818475A (en) 1974-12-02

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Legal Events

Date Code Title Description
ST Notification of lapse