JPH10243364A - Television signal transmitter and television receiver for receiving television signal from the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a television signal transmitter and a television receiver for receiving television signal from the same with which a television signal is transmitted while superimposing universal resource locator(URL) information on a video signal, the URL information superimposed on the video signal in that transmitted television signal is extracted and an internet can be watched based on that URL information. SOLUTION: The URL information is extracted from the television signal received from an antenna 2 by a URL decoder 11 and transmitted to a microcomputer 12 for tuning. The tuning microcomputer 12 stores the URL information in a memory 14 according to the instruction by the user, further, generates the character signal of that URL information from an on-screen display(OSD) 13 and displays it on a CRT 9. On the other hand, a microcomputer 19 for internet controls a modem 17 so as to connect a telephone line to a provider based on that URL information, and internet information from the MODEM 17 is received by an internet circuit 18. Then, this information is converted to a video signal by a video signal converting circuit 20 and displayed on the CRT 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
(Universal Resource Locator) A television signal transmitter capable of transmitting a television signal by superimposing information, and a television receiver capable of capturing Internet information via a telephone line based on the URL information and displaying the Internet information on a screen It is about.

[0002]

2. Description of the Related Art The Internet is a network in which a large number of computers are connected on a worldwide scale, and each computer stores various information that can be read. This information includes e-mails, various programs, homepages, etc., and can be communicated in both directions. The home page is a cover and a table of contents of one piece of information, and necessary information can be searched for by clicking icons and words on the home page with a mouse.

FIG. 10 is an explanatory diagram for explaining an example of connection between each computer and the Internet. In this connection example, the personal computer 57 is connected to a telephone line 52 via a modem 58 or a terminal adapter, and the telephone line 52 is connected to a modem 53 or a terminal adapter of a provider as a connection service company. The modem 3 is connected to a server 54, which is a computer of the provider.

[0004] The server 54 is connected to the Internet 56 by two.
It has been connected for 4 hours and is connected to the Internet 56 via a router 55 for setting a relay route.

A personal computer 57 makes a telephone call when necessary and connects to the Internet 56 via a server 54 of the provider (dial-up connection).

Recently, the Internet 56
Internet television that can be connected in place of a personal computer 57 and display various information of the Internet on its screen has been proposed.

[0007] A feature of such Internet television is that the user can enjoy the Internet with the same feeling as watching a television broadcast.

Therefore, in the Internet television, the user can access the Internet by a simple menu operation using a remote controller or the like. For this reason, it is considered that input of a URL by a keyboard or the like as in a personal computer is avoided as much as possible.

However, there is a case where the URL desired by the user does not exist in the above-mentioned menu. At that time, in the Internet television, a soft keyboard is displayed on the screen so that the user can input, but there is a problem that it takes time if the user is not used to the input.

[0010]

Therefore, in the present invention,
A television in which URL information is superimposed on a video signal, a television signal is transmitted, URL information superimposed on the video signal of the transmitted television signal is extracted, and the Internet can be viewed based on the URL information. A signal transmitter and a television receiver for receiving the television signal are proposed.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a video signal generating means for generating a video signal, and a U.S.M.
Television comprising: conversion means for converting RL information into digital data; television signal generation means for mixing the video signal and the digital data to generate a television signal; and transmission means for transmitting the television signal. It is a signal transmitter.

Further, the present invention provides a television receiver for receiving a television signal in which a video signal and digital data of Internet URL information are mixed, and a video for reproducing a video signal from the television signal. Signal reproducing means, and UR from the television signal.
Digital data extracting means for extracting digital data of L information, telephone signal transmitting / receiving means for transmitting / receiving Internet information data via a telephone line, and video signal for converting Internet information data from the telephone signal transmitting / receiving means into a video signal Conversion means; display means for displaying a video signal from the video reproduction means and a video signal from the video signal conversion means; character signal generation means for displaying a character signal on the display means;
Control means for controlling the telephone signal transmitting / receiving means to receive the Internet information of the URL based on the digital data of L information.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a transmitter for transmitting a television signal, in which 26 is a camera, 27 is RGB (red,
Green, blue) signal generation circuit, 28 is a color difference signal generation circuit, 29
Is a double balanced modulation circuit for generating a modulated color signal;
Is a burst signal generation circuit, 31 is a luminance signal generation circuit, 3
Reference numeral 2 denotes a URL data generation circuit that converts URL information of the Internet into digital data and outputs the data. 33 denotes a text multiplex broadcast signal generation circuit that generates a text multiplex broadcast signal of digital data. A signal generating circuit, 35 is a mixing circuit that mixes a chrominance signal and a luminance signal, and a URL, a teletext signal, and a synchronizing signal, 36 is an RF modulation circuit that modulates the mixing circuit 35, and 37 is an RF modulation circuit.
An antenna for transmitting an output from the modulation circuit.

Next, the operation of the transmitter will be described. First, R, G, and B signals are output from an image from a camera 26 by an RGB signal generation circuit 27, and R, G, and B signals are output by a color difference signal generation circuit 28.
Generate a -Y signal and a BY signal. The color difference signal is modulated by the double balanced modulation circuit 29 by the burst signal from the burst signal generation circuit 30 to generate a color signal.

On the other hand, the URL data of the Internet is
The broadcast station transmits a URL relating to a broadcasted program or a URL having information related to the broadcasted program. This UR
The L data is digital data and is 10H (H: H: H: vertical retrace period of the video signal so as not to interfere with the video signal.
Horizontal scanning line number) to 13H, 14H to 16H, 2
It is made to overlap with a period such as 1H. This period is a period in which the teletext signal is superimposed,
In this case, it can be extracted using a decoder that decodes the teletext message.

Further, in consideration of the number of effective scanning lines, it is possible to superimpose the URL data in the period of 22H. In this case, there is an effect that the teletext signal can be superimposed at the same time.

Therefore, the digital data generated from the URL data generation circuit 32, the text multiplex broadcast signal from the text multiplex broadcast signal generation circuit 33, and the synchronization signal generation circuit 34
Is input to the mixing circuit 35.

Further, the RG from the RGB signal generation circuit 27
The B signal is input to the luminance signal generation circuit 31 to generate a luminance signal. The luminance signal is input to the mixing circuit 35, where the color signal is mixed with the above-described digital data and the synchronization signal,
The signal is modulated by the RF modulation circuit 36 and output to the antenna 37.
Thus, the television signal including the URL data is transmitted.

Next, a television receiver for receiving a television signal will be described with reference to FIG. In FIG. 2, 1 is a BS antenna, 2 is a terrestrial antenna, 3 is a BS antenna, 4 is a television broadcast receiving circuit, 5 is an input terminal for inputting an external video signal, 6 is
Is a switch for selecting each video signal, 7 is a YC separation circuit for separating a luminance signal and a chrominance signal, 8 is a video signal processing circuit, 9
Is a CRT (cathode ray tube), 10 is a teletext decoder,
11 is a URL decoder, 12 is a microcomputer for tuning, 13 is an OSD (On Screen Display), 14 is a memory, 15 is a remote control, 16 is a telephone line terminal, 17 is a modem, and 18 is Internet information from the modem 17. , An internet microcomputer 19 for receiving internet information and controlling various circuits, and a video signal conversion circuit 20 for converting internet information into video signals.

Next, the operation will be described. First, when the user selects a desired television broadcast with the remote control 15, the tuning microcomputer 12 controls the television broadcast receiving circuit 4 to receive the desired television broadcast, Output to the separation circuit 7 and output from the video processing circuit 8 to the CRT 9.

At this time, Internet URL information including information related to the television signal is also superimposed on the television signal. The URL information is extracted by the URL decoder 11 via the teletext decoder 10 and input to the microcomputer 12 for channel selection. The text multiplex broadcast signal superimposed on the television signal is input to the text multiplex broadcast decoder 10 and outputs the data to the channel selection microcomputer 12, which then converts the text signal based on the data. The OSD 13 is controlled to generate a character signal, and the character signal is output to the video signal processing circuit 8.

The operation of the channel selection microcomputer 12 when there is URL information will now be described with reference to the flowchart of FIG. First, if there is URL information data (S1),
The OSD 13 is controlled to display the URL information on the screen, and a display as shown in FIG.
2). Then, when the user wants to register the URL information, the remote control 1 shown in FIG.
Select YES with the cursor key 25 of 5 and execute key 2
3 is determined (S3).

Here, the on-screen display is as shown in FIG. 7, and a list of URLs already registered appears. The user inputs the number to be registered into the remote control 1 shown in FIG.
5 can be selected with the ten keys 21 and can be performed with the execution key 23 (S4). When you select a list number to register,
The RL information is written into the memory 14 and registration (for example, when 1 is selected, registration can be made to the number 1) is completed (S5).
If all numbers are registered as shown in FIG. 7,
New URL information is registered in the selected number.

On the other hand, if no registration is made (S3), the URL
When the user directly accesses the information, the user presses the Internet mode key 24 of the remote control 15 shown in FIG. 5 (S6) to start the operation in the Internet mode (S6).
7). As a result, the tuning microcomputer 12 sends the URL information as data to the internet microcomputer 19, and
The Internet microcomputer 19 controls the modem 17 so as to connect to the provider, and connects the telephone line.
Then, based on the URL information, the Internet information of the URL is taken in by the Internet circuit 18, the Internet information is converted into a video signal by the video signal conversion circuit 20 and displayed on the CRT 9. If the user does not enter the Internet mode, pressing the cancel key 22 returns to the screen for receiving a normal television broadcast (S6).

Next, when the user wants to view the information on the Internet, it operates according to the flowchart shown in FIG. That is, when the user presses the Internet mode switch 24 of the remote control 15 (S8), the user selects whether to select a URL from a registration list already stored in the memory 14 or to directly input the URL (S9). ). Then, when the registered URL information is selected, a list (only the list is displayed) as shown in FIG. 7 is displayed (S10). When a desired number in this list is selected, a telephone line is connected to the provider, the Internet information of the URL information of the selected number is taken in, and the Internet information is displayed on the CRT 9 (S
11).

On the other hand, URL information is directly input (this is
A soft keyboard may be displayed on the RT9 screen for input, or input may be performed by connecting a keyboard directly to the television receiver. (S12) Once confirmed, a telephone line is connected to the provider for selection. Internet information of the URL information of the given number
Internet information is displayed at T9 (S11). In this way, Internet information can be easily imported.

In this system, the embodiment has been described as a system in which a URL is superimposed by television broadcasting. However, a video tape, a video disk, a CDV, and a DVD are used.
It is also possible to record the information as URL information data on a package medium such as, so that the Internet information can be accessed based on the URL information.

[0028]

As described above, according to the present invention, it is possible to transmit URL information using the teletext broadcasting system, take in the URL information on the receiving side, and access the Internet, so that the user needs to input the URL. Easy access without any.

When an existing text multiplex broadcasting system is used, fetching of URL information and the like can be realized by using a decoder of the text multiplex broadcasting system, and can also be used as a text multiplex broadcasting receiver.

Further, since the broadcast station can transmit the URL related to the broadcast, the URL information can play a complementary role in the television broadcast.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a television transmitter for television broadcasting according to the present invention.

FIG. 2 is a block diagram showing a television receiver for television broadcasting according to the present invention.

FIG. 3 is a flowchart showing a URL information receiving system in the television receiver of the present invention.

FIG. 4 is a flowchart showing an Internet reception system in the television receiver of the present invention.

FIG. 5 is a diagram showing a remote control according to the present invention.

FIG. 6 is a diagram showing an on-screen display state when receiving URL information according to the present invention.

FIG. 7 is a diagram showing an on-screen display state of a URL registration list according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 BS antenna 2 Terrestrial antenna 3 BS receiving circuit 4 Television broadcast receiving circuit 5 Video signal input terminal 6 Switch 7 YC separation circuit 8 Video signal processing circuit 9 CRT (cathode ray tube) 10 Text multiplex broadcasting decoder 11 URL decoder 12 Selection Office microcomputer 13 OSD 14 Memory 15 Remote control 16 Telephone line terminal 17 Modem 18 Internet circuit 19 Internet microcomputer 20 Video signal conversion circuit 26 Camera 27 RGB signal generation circuit 28 Color difference signal generation circuit 29 Double balanced modulation circuit 30 Burst signal generation Circuit 31 Luminance signal generation circuit 32 URL data generation circuit 33 Text multiplex broadcast signal generation circuit 34 Synchronization signal generation circuit 35 Mixing circuit 36 RF modulation circuit 37 Antenna

Claims (13)

[Claims] 1. A video signal generating means for generating a video signal; a converting means for converting URL information of the Internet into digital data; and a television for generating a television signal by mixing the video signal with the digital data. A television signal transmitter comprising: a television signal generator; and a transmitter for transmitting the television signal. 2. The television signal transmitter according to claim 1, wherein said digital data is superimposed on an effective scanning line area. 3. The television signal transmitter according to claim 2, wherein said digital data is superimposed on a 22nd horizontal scanning line. 4. The television signal transmitter according to claim 1, wherein said digital data is superimposed in a vertical blanking period. 5. The television signal transmitter according to claim 4, wherein the digital data is superimposed on any of the tenth to thirteenth, fourteenth to sixteenth, or twenty-first horizontal scanning lines. A television signal transmitter. 6. The television signal transmitter according to claim 3, wherein the URL information relates to Internet information related to a television broadcast program. 7. A television receiver for receiving a television signal obtained by mixing a video signal and digital data of URL information of the Internet, comprising: a video signal reproducing unit for reproducing a video signal from the television signal; A digital data extracting unit for extracting digital data of URL information from the television signal; a telephone signal transmitting and receiving unit for transmitting and receiving Internet information data via a telephone line; and an image of Internet information data from the telephone signal transmitting and receiving unit. Video signal conversion means for converting the video signal into a signal; display means for displaying the video signal from the video reproduction means and the video signal from the video signal conversion means; and generation of a character signal for displaying a character signal on the display means. Means, based on the digital data of the URL information The URL Te
Controlling means for controlling the telephone signal transmitting / receiving means to receive the Internet information. 8. The television receiver according to claim 7, wherein said digital data is superimposed on an effective scanning line area. 9. The television receiver according to claim 8, wherein said digital data is superimposed on a 22nd horizontal scanning line. 10. The television receiver according to claim 7, wherein said digital data is superimposed in a vertical blanking period. 11. The television receiver according to claim 10, wherein the digital data is superimposed on any of the tenth to thirteenth, fourteenth to sixteenth, or twenty-first horizontal scanning lines. Television receiver characterized by the following. 12. The television receiver according to claim 7, wherein the URL information extracted from the digital data extracting means generates a character signal of the URL information by the character signal generating means and is displayed on the display means. Television receiver characterized by the following. 13. The television receiver according to claim 12, further comprising storage means for storing URL information extracted from said digital data extraction means.