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Television signal transmission and reception system with multi-screen display for tuning operation

a multi-screen display and transmission system technology, applied in the field of transmission and reception of television signals, can solve the problems of unsuitable practical use, high cost, and troublesome tuning operation handling, and achieve the effect of convenient operation, convenient looking, and convenient tuning operation

Inactive Publication Date: 2000-01-18
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

It is therefore an object of the present invention to provide a television signal transmission and reception system by which program viewers can easily look for and select a desired program.
A further object of the present invention is to provide a television signal reception system which has various functions for making a tuning operation easy and is suitable in practical use.

Problems solved by technology

For this reason, the greater number of the program channels, the more complex and troublesome the handling of the tuning operation becomes.
As a result, in the case where the multi-screen display is employed in the conventional system, the reception terminal suffers the disadvantage of being complex in construction and high in cost, so that it is unsuitable for practical use.
Therefore, it is impossible to select a desired program by listening to the audio of the programs in cooperation with the multi-screen display.

Method used

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  • Television signal transmission and reception system with multi-screen display for tuning operation
  • Television signal transmission and reception system with multi-screen display for tuning operation
  • Television signal transmission and reception system with multi-screen display for tuning operation

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Embodiment Construction

Representative embodiments of the present invention will now be explained with reference to the accompanying drawings.

FIG. 1 is a schematic block diagram illustrating a television signal transmission and reception system in accordance with an embodiment of the present invention, which is applied to a CATV broadcasting system.

In FIG. 1, a broadcasting center 11, which is the program supplier of the CATV broadcasting system, receives various program information via antennas 12 for satellite broadcasts and ground wave broadcasts. In broadcasting center 11, broadcasting unit 13 demodulates the received program information, and modulates this information into television signals with the format in accordance with the CATV broadcasting system. At the same time, control unit 14 produces the control information to be added to the television signals supplied by broadcasting unit 13. The control information is modulated by data communication modulator 15 into an appropriate form to mix with th...

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Abstract

Television signal transmission and reception system includes a broadcasting center, a transmission network and many reception terminals. In the broadcasting center, plural television signals corresponding to individual channels are modulated into transmittable form, and a synthesis circuit synthesizes the television signals to produce a synthesis image signal for a multi-screen display comprising plural small screens. Both the ordinary television signal and the synthesis image signal is transmitted with control information to the reception terminals through the transmission network. In the reception terminal, for selecting a desired channel out of the individual channels, the synthesis image signal is used for displaying a multi-screen, a moveable cursor image is superimposed on the multi-screen for designating one small screen corresponding to the desired channel. The channel designated by the cursor image is detected based on the control information, and the television signal of the designated channel is demodulated.

Description

FIELD OF THE INVENTIONThe present invention generally relates to the television signal transmission and reception field, and more particularly, is directed to a tuning system which is capable of selecting a desired program out of a multi-channel broadcast, for instance a CATV (Cable Television) broadcast. The tuning system employs multi-screen displaying in which a plurality of programs on different channels are simultaneously displayed on one screen.BACKGROUND OF THE INVENTIONIn the CATV broadcasting system, which is the system presently and widely in use in the United States and in many other countries, television signals are transmitted by multiple cables from the broadcasting center, which is the program supplier, to subscribers' reception terminals which are installed at the program viewer's site. In this system, a program viewer looks for and selects a desired program out of a large number of programs supplied from the broadcasting center, in general, by successively tuning in...

Claims

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Application Information

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IPC IPC(8): H04N7/10H04N5/445H04N5/50H04N5/44H04N5/45H04N7/08
CPCH04N5/44H04N5/44543H04N5/44591H04N5/45H04N5/50H04N7/0806H04N7/10H04N21/4312H04N21/4316H04N21/4347H04N21/47H04N21/482H04N7/12
Inventor SHIGIHARA, HIDEO
Owner KK TOSHIBA
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