US 5,850,265 A · Intelligent television receiver and method of processing data therein

An intelligent television receiver, operable with a value added network (VAN), for receiving a signal of a desired channel and displaying the signal on a CRT, said intelligent television receiver comprising:

a modem for transmitting and receiving information data according to connection command data when the intelligent television receiver is connected with the VAN via a communication cable;
and
an information processing unit for outputting said connection command data if a communication mode is set in the intelligent television receiver, for decoding said information data transmitted from the VAN to said modem to display said information data on the CRT, and for transmitting command data necessary for the transmission and reception of said information data to said modem.

An intelligent television receiver, operable with a value added network (VAN), for receiving a signal of a desired channel and displaying the signal on a CRT, said intelligent television receiver comprising:

a tuner for converting a radio frequency (RF) signal of the desired channel received via an antenna into an intermediate frequency (IF) signal;
an IF amplifier for amplifying said IF signal to output the amplified signal as an IF video signal and an IF sound signal;
a modem for transmitting and receiving information data according to connection command data when the intelligent television receiver is connected with the VAN via a communication cable;
an information processing unit for outputting said connection command data if a communication mode is set in the intelligent television receiver, for generating first through third control signals according to at least one of a television and communication mode set in the intelligent television receiver, for generating a composite sync signal synchronized to said information data, for decoding said information data transmitted from said modem to output the information data as an information video signal and an information sound signal as background music in case the communication mode is set in the intelligent television receiver;
a television microcomputer for generating a mode control signal for signal processing in the television receiver in accordance with a user input, and for transmitting the mode control signal to said information data processing unit and for receiving data from said information processing unit;
a first selector for selecting one of:
a) the composite sync signal output from said information processing unit and b) the IF video signal output from said IF amplifier in accordance with the first control signal generated by said information processing unit;
a video signal processor for processing the signal selected by said first selector to output a video signal and horizontal and vertical sync signals;
a second selector for selecting one of:
a) the information video signal output from said information processing unit and b) the video signal output from said video signal processor in accordance with the second control signal generated by said information processing unit;
a CRT driver for driving said CRT in accordance with said horizontal and vertical sync signals output from said video signal processor;
a sound signal processor for processing said IF sound signal;
and
a third selector for selectively outputting one of:
a) the information sound signal output from said information processing unit and b) the IF sound signal output from said sound signal processor in accordance with the third control signal generated by said information processing unit.

12 more elements

An intelligent television receiver, operable with a value added network (VAN), for receiving a signal of a desired channel and displaying the signal on a CRT, said intelligent television receiver comprising:

a tuner for converting a radio frequency (RF) signal of the desired channel received via an antenna into an intermediate frequency (IF) signal;
an IF amplifier for amplifying said IF signal to output the amplified signal as an IF video signal and an IF sound signal;
an information processing unit for recognizing a mode of the intelligent television receiver, for receiving information data of a graphic or text state and decoding the information data, said information processing unit comprising;
a program ROM in which programs and data necessary for the operation of said information processing unit are stored;
a CPU for performing control of said information processing unit, data transmission and operations by said programs stored in said program ROM;
a main controller for recognizing the mode set by a user and for generating connection command data, for generating first through third control signals, and for generating a composite sync signal synchronized with said information data, and having a graphic data processing function with respect to said information data;
a RAM/DAC for receiving the graphic data of said main controller, for reading RGB data from an internal palette RAM, for converting the graphic data into an analog information signal and for outputting the graphic data to the CRT;
a memory for reading and writing the information data under the control of said main controller;
and
a modem for transmitting and receiving information data according to the connection command data when the intelligent television receiver is connected with the VAN via a communication cable;
a television microcomputer for generating a mode control signal in the television receiver corresponding to at least one of a communication mode and a television mode in accordance with a user input, and for transmitting the mode control signal to said information processing unit to and receiving data from said information processing unit;
a first selector for selecting one of:
a) the composite sync signal output from said information processing unit and b) the IF video signal output from said IF amplifier in accordance with the first control signal generated by said main controller;
a video signal processor for processing the signal selected by said first selector to output an RGB signal and horizontal and vertical sync signals;
a second selector for selecting one of:
a) the analog information signal output from said information processing unit and b) the RGB signal from said video signal processor in accordance with said second control signal generated by said main controller;
a CRT driver for driving said CRT in accordance with said horizontal and vertical sync signals output from said video signal processor;
a sound signal processor for processing said IF sound signal;
and
a third selector for muting a sound signal output from said sound signal processor in the communication mode, and outputting said sound signal in case of the television mode in accordance with the third control signal generated by said main controller.

17 more elements

An intelligent television receiver, operable with a value added network (VAN), for receiving a signal of a desired channel and displaying the signal on a CRT, said intelligent television receiver comprising:

a tuner for converting a radio frequency (RF) signal of the desired channel received via an antenna into an intermediate frequency (IF) signal;
an IF amplifier for amplifying said IF signal to output the amplified signal as an IF video signal and an IF sound signal;
an information processing unit for recognizing a mode of the intelligent television receiver, for receiving and decoding information data of a graphic or text state and for performing a karaoke function, said information processing unit comprising;
a program ROM in which programs and data necessary for the operation of said information processing unit and karaoke function are stored;
a CPU for performing control of said information processing unit, data transmission and operations by said programs stored in said program ROM;
a main controller for recognizing the mode set by a user for generating connection command data, and for generating first through third control signals, said main controller having an information data reception function, a display function and a graphic data processing function, said main controller decoding information data for the karaoke function and outputting the karaoke data as decoded scenery information and decoded MIDI data;
a RAM/DAC for receiving the graphic data of said main controller, for reading RGB data from an internal palette RAM, for converting the graphic data into an analog information signal and for outputting the graphic data to the CRT;
a memory for reading and writing the information data and karaoke data under the control of said main controller;
a modem for transmitting and receiving information data according to the connection command data when the intelligent television receiver is connected with the VAN via a communication cable;
a graphic ROM for compressing and storing the scenery information for the karaoke function;
and
an accompaniment signal generator for outputting said decoded MIDI data as an accompaniment signal;
a television microcomputer for generating a mode control signal in the television receiver corresponding to at least one of a television and a communication mode, said communication mode including a karaoke mode, in accordance with a user input and for transmitting the mode control signal to said information processing unit and for receiving data from said information processing unit;
a first selector for selecting one of:
a) a composite sync signal output from said information processing unit and b) the IF video signal output from said IF amplifier in accordance with the first control signal generated by said main controller;
a video signal processor for processing the signal selected by the first selector to output an RGB signal and horizontal and vertical sync signals;
a second selector for selecting one of:
a) the analog information signal output from said information processing unit and b) the RGB signal output from said video signal processor in accordance with the second control signal generated by the main controller;
a CRT driver for driving said CRT in accordance with said horizontal and vertical sync signals output from said video signal processor;
a sound signal processor for processing said IF sound signal;
and
a third selector for outputting said accompaniment signal output from said accompaniment signal generator in accordance with said third control signal in the case of said karaoke mode, and outputting said sound signal output from said sound signal processor in the case of the television mode.

19 more elements

A method of processing information data in an intelligent television receiver, operable with a value added network (VAN), said television receiver receiving and decoding information data of a graphic or text state, said method comprising the steps of:

(a) setting a communication mode;
(b) selecting a communication item if said communication mode is set;
(c) connecting the television receiver to the VAN when said communication item is selected;
(d) receiving information data from the VAN depending on said selected communication item when the television receiver is connected with the VAN;
(e) determining whether an error is generated in said received information data;
(f) requesting retransmission of said information data if an error is generated in said received information data in said step (e);
(g) decoding said received data if an error is not generated in said received information data in said step (e);
(h) displaying said decoded information data on a CRT of said intelligent television receiver;
(i) checking for a command depending on key inputs while performing said step (h);
(j) transmitting the command checked in said step (i) to the VAN if said command concerns a communication mode for said television receiver;
and
(k) disconnecting a line and converting the mode of the television receiver into a television mode if said command is a connection completion command.

9 more elements

Intelligent television receiver and method of processing data therein

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Intelligent television receiver and method of processing data therein

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Abstract

Claims34