IT1020803B - PROCEDURE AND DEVICE FOR THE BIDIRECTIONAL TRANSMISSION ITERATE GOES BETWEEN USERS AND HEAD STATION IN CABLE TELEVISION SYSTEMS - Google Patents

PROCEDURE AND DEVICE FOR THE BIDIRECTIONAL TRANSMISSION ITERATE GOES BETWEEN USERS AND HEAD STATION IN CABLE TELEVISION SYSTEMS

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
Italian (it)
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/en
Priority to GB3571975A priority patent/GB1523753A/en
Application granted granted Critical
Publication of IT1020803B publication Critical patent/IT1020803B/en

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
IT6978574A 1974-09-16 1974-09-16 PROCEDURE AND DEVICE FOR THE BIDIRECTIONAL TRANSMISSION ITERATE GOES BETWEEN USERS AND HEAD STATION IN CABLE TELEVISION SYSTEMS IT1020803B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT6978574A IT1020803B (en) 1974-09-16 1974-09-16 PROCEDURE AND DEVICE FOR THE BIDIRECTIONAL TRANSMISSION ITERATE GOES BETWEEN USERS AND HEAD STATION IN CABLE TELEVISION SYSTEMS
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 (en) 1974-09-16 1974-09-16 PROCEDURE AND DEVICE FOR THE BIDIRECTIONAL TRANSMISSION ITERATE GOES BETWEEN USERS AND HEAD STATION IN CABLE TELEVISION SYSTEMS

Publications (1)

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

Family

ID=11312829

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6978574A IT1020803B (en) 1974-09-16 1974-09-16 PROCEDURE AND DEVICE FOR THE BIDIRECTIONAL TRANSMISSION ITERATE GOES BETWEEN USERS AND HEAD STATION IN CABLE TELEVISION SYSTEMS

Country Status (2)

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

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 (en) * 1988-08-17 1990-11-23 Mauduit Daniel INTERACTIVE VIDEO COMMUNICATION ASSEMBLY
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

Similar Documents

Publication Publication Date Title
IT1020803B (en) PROCEDURE AND DEVICE FOR THE BIDIRECTIONAL TRANSMISSION ITERATE GOES BETWEEN USERS AND HEAD STATION IN CABLE TELEVISION SYSTEMS
JPS531764A (en) Gas buffer
JPS52115121A (en) Device for altering television picture size
GB2005638B (en) Picture storage box and viewer device
JPS52133116A (en) Device for exploding pipe blockage by compression
JPS52113200A (en) Remote signaling device
JPS57201875A (en) Device for preparing and displaying weather chart
DE2861002D1 (en) Vertical bulk-conveying apparatus and bulk delivering system utilizing the characteristics thereof
HK33282A (en) Picture storage box and viewer device
JPS52149704A (en) Device for insulating and fixing railroad rail
HU179703B (en) Case or house for equipments preparing compressed air
YU183775A (en) Apparatus for lubricating the device for compressing bands
JPS52119906A (en) Record dust remover and antistatice device
JPS5361220A (en) Line scan converter for video display unit
CA1029247A (en) Adjustable compression unit and lading band anchor
ZA756184B (en) Spoken message transmission device
JPS535265A (en) Rpocess and device for producing foam
JPS52102058A (en) Air conditionig equipment for artifitial weather room
CA998845A (en) Tube bedding device
JPS5281641A (en) Refrigeration system and apparatus
JPS5437947A (en) Air compression cooling apparatus
IT1149990B (en) DEVICE FOR THE TRANSMISSION OF NUMBER FORMATION INTERVALS IN TELEPHONE SYSTEMS
JPS55139591A (en) Air compressing device
JPS5364575A (en) Earthquake observing device
JPS52124326A (en) Method and device for taking multiple gas stream lines