Hyper text markup language (HTML) data transmitting/receiving apparatus
AssigneeLG Electronics Inc.
InventorJoo Won Kim
Life of this patent
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Abstract
A HTML data transmitting/receiving apparatus selectively inserts an NTSC broadcasting signal and a HTML signal into a VHF or UHF broadcast channel and thus performing data transmitting and receiving process. The apparatus of the present invention inserts the HTML data signal in an image signal interval corresponding to a predetermined TV channel and transmits the HTML data signal in a caption region and a teletext region in a vertical blanking interval or in a caption region, a teletex region and an image signal interval therein.
Claims9
In an image signal processing device provided with VIF and AIF processors for separating a radio frequency composite image signal outputted from a tuner into a video intermediate frequency signal and an audio intermediate frequency signal, a video output unit for processing and displaying a TV image signal or a HTML image signal on a color picture tube and an audio output unit for processing and outputting the audio intermediate frequency signal from the AIF processor or a HTML audio signal to a speaker, a HTML data receiving apparatus, further comprising:
- a TV decoder modulating the image intermediate frequency signal outputted from the VIF processor to a TV image signal and a HTML signal and slicing the HTML signal thereby converting to a text code;
- and
- a HTML decoder receiving the text code from the TV decoder and restoring HTML image and HTML audio data signals from text data,
- wherein the HTML decoder comprises:
- an interface interfacing data between an external microcomputer and a data bus;
- a CPU restoring the HTML image and audio data from the text data outputted from the TV decoder;
- a memory unit storing the restored HTML image data and HTML audio data;
- a key input controller controlling a key input;
- a graphic processor converting the HTML image data signal to an analog signal and performing on-screen and graphic processes;
- and
- a D/A converter converting the HTML audio data signal from the memory unit to an analog signal.
A hyper text markup language (HTML) data transmitting apparatus, comprising:
- a HTML converter converting a HTML data signal which is generated in an ASCII type in a computer to an ASCII type of a teletext;
- a HTML encoder generating a composite image signal in accordance with primary color signals outputted by a camera and selectively outputting the composite image signal or the HTML data signal outputted from the HTML converter;
- and
- a broadcast device inserting an output signal from the HTML encoder in an image signal interval of a predetermined channel, thereby generating and broadcasting a TV image signal of 1 frame;
- wherein the broadcast device inserts the HTML data signal in a caption region and a teletext region in a vertical blanking interval.
In a TV image signal transmitting apparatus for broadcasting a TV image signal of 1 frame wherein there are divided a synchronous signal interval, a vertical blanking interval and an image signal interval, a HTML data transmitting apparatus, comprising:
- a HTML encoder generating a composite image signal from RGB signals outputted from a camera and selectively outputting the composite image signal or a HTML data signal which is outputted from a HTML converter;
- and
- a broadcast device inserting an output signal from the HTML encoder into the image signal interval corresponding to a predetermined channel, thereby generating a TV image signal of 1 frame;
- wherein the broadcast device inserts the HTML data signal in a caption region and a teletext region in the vertical blanking interval.
Dependencies are inferred from the claim text.