IT1020803B - Procedimento e dispositivo per la trasmissione bidirezionale iterati va fra utenti e stazione di testa negli impianti di televisione via cavo - Google Patents

Procedimento e dispositivo per la trasmissione bidirezionale iterati va fra utenti e stazione di testa negli impianti di televisione via cavo

Info

Publication number
IT1020803B
IT1020803B IT6978574A IT6978574A IT1020803B IT 1020803 B IT1020803 B IT 1020803B IT 6978574 A IT6978574 A IT 6978574A IT 6978574 A IT6978574 A IT 6978574A IT 1020803 B IT1020803 B IT 1020803B
Authority
IT
Italy
Prior art keywords
iterate
users
goes
procedure
cable television
Prior art date
Application number
IT6978574A
Other languages
English (en)
Inventor
R Salvadorini
G Zetti
Original Assignee
Rai Radiotelevisione Italiana
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 Rai Radiotelevisione Italiana filed Critical Rai Radiotelevisione Italiana
Priority to IT6978574A priority Critical patent/IT1020803B/it
Priority to GB3571975A priority patent/GB1523753A/en
Application granted granted Critical
Publication of IT1020803B publication Critical patent/IT1020803B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/17372—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream transmission being initiated or timed by a signal from upstream of the user terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Social Psychology (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Time-Division Multiplex Systems (AREA)
IT6978574A 1974-09-16 1974-09-16 Procedimento e dispositivo per la trasmissione bidirezionale iterati va fra utenti e stazione di testa negli impianti di televisione via cavo IT1020803B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT6978574A IT1020803B (it) 1974-09-16 1974-09-16 Procedimento e dispositivo per la trasmissione bidirezionale iterati va fra utenti e stazione di testa negli impianti di televisione via cavo
GB3571975A GB1523753A (en) 1974-09-16 1975-08-29 Two-way data transmission system for cable television network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6978574A IT1020803B (it) 1974-09-16 1974-09-16 Procedimento e dispositivo per la trasmissione bidirezionale iterati va fra utenti e stazione di testa negli impianti di televisione via cavo

Publications (1)

Publication Number Publication Date
IT1020803B true IT1020803B (it) 1977-12-30

Family

ID=11312829

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6978574A IT1020803B (it) 1974-09-16 1974-09-16 Procedimento e dispositivo per la trasmissione bidirezionale iterati va fra utenti e stazione di testa negli impianti di televisione via cavo

Country Status (2)

Country Link
GB (1) GB1523753A (it)
IT (1) IT1020803B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584602A (en) * 1982-11-08 1986-04-22 Pioneer Ansafone Manufacturing Corporation Polling system and method using nondedicated telephone lines
US4633462A (en) * 1983-07-18 1986-12-30 The Board Of Trustees Of The University Of Illinois Multiple access communication on a CATV reverse channel
US4591906A (en) * 1986-02-12 1986-05-27 Morales Garza Fernando Wireless transmission from the television set to the television station
US4755871A (en) * 1986-11-25 1988-07-05 Magus, Ltd. Control of rf answer pulses in a TV answer back system
CA1317667C (en) * 1987-11-02 1993-05-11 Michel Dufresne Catv subscriber terminal transmission control
FR2635630B1 (fr) * 1988-08-17 1990-11-23 Mauduit Daniel Ensemble de communication video interactive
US5093786A (en) * 1989-01-27 1992-03-03 Fleetwood Furniture Company, Inc. Remote response system
US5724357A (en) * 1992-01-28 1998-03-03 Fleetwood Group, Inc. Remote response system and data transfer protocol
US6021119A (en) * 1994-06-24 2000-02-01 Fleetwood Group, Inc. Multiple site interactive response system
GB2324631B (en) * 1997-04-25 2001-05-23 Ibm Communication of data in television signals
US6181711B1 (en) 1997-06-26 2001-01-30 Cisco Systems, Inc. System and method for transporting a compressed video and data bit stream over a communication channel
US6665000B1 (en) 1998-11-13 2003-12-16 Fleetwood Group, Inc. Remote site interactive system
US7366236B1 (en) 2001-06-04 2008-04-29 Cisco Sytems Canada Co. Source adaptive system and method for 2D iDCT
US7656949B1 (en) 2001-06-27 2010-02-02 Cisco Technology, Inc. Methods and apparatus for performing efficient inverse transform operations

Also Published As

Publication number Publication date
GB1523753A (en) 1978-09-06

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