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Patent Searching and Data


Title:
INTERACTIVE TELEVISION BROADCASTING SYSTEM
Document Type and Number:
Japanese Patent JPH0723356
Kind Code:
A
Abstract:

PURPOSE: To enable many audiences to simultaneously participate in this interactive television(TV) broadcasting system, to easily attain a quick response and to attain the execution of a video game.

CONSTITUTION: A TV receiver in a service zone 1 receives a broadcasting wave a1 obtained by synthesizing a video signal transmitted from a broadcasting station 4 and additional information related to the video signal converted into a character broadcasting signal. In the case of executing interactive TV broadcasting, viewer data are outputted from a control device 102 to a domestic slave station 103 and transmitted to a radio equipment 11 in a street base station 10 through a time-division multiplex radio line (b). The transmitted data are multiplexed with other viewer data by a multiplexing device 12 and the multiplexed data are transmitted to a local exchange 3. The local exchange 3 separates/totalizes data based upon a subscriber's code and broadcasting station code added to the viewer data and transmits the separated/totalized result to the broadcasting station 4.


Inventors:
MATSUSHITA HIROAKI
MATSUI HIROAKI
IRIE NORIKO
SUDO SHIGEYUKI
UKAI MAKOTO
Application Number:
JP16091393A
Publication Date:
January 24, 1995
Filing Date:
June 30, 1993
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
A63F13/33; H04H20/28; H04H20/53; H04H20/76; H04H60/33; H04N7/173; H04N21/235; H04N21/435; H04N21/478; H04N21/61; (IPC1-7): H04N7/14; A63F9/22; H04H1/02
Attorney, Agent or Firm:
Ogawa Katsuo