KR19990001204A - Television receiver with voice multi-channel search - Google Patents

Abstract

According to the present invention, when a user is watching an arbitrary program and continuously searches for another channel and there is a program that is executing the voice multicasting, the user can display the voice multicasting program by displaying whether or not the voice multicasting is performed. The present invention relates to a television receiver having a non-recognition and excessive channel search function, wherein the first and second tuners 2 and 5 tune to a broadcast signal and the broadcast tuned by the tuners 2 and 5, respectively. A television receiver having a voice processor (12) for processing a voice signal from a signal, and a channel memory (19) for storing predetermined channel data; A frequency detector 24 for detecting a voice multiple pilot signal from a broadcast signal tuned through the second tuner 5, an OSD generator 15 for generating and outputting predetermined OSD pattern data, and a television receiver. The OSD display unit 15 when the LED display unit 23, which is installed externally, is tuned to the second tuner 5 based on predetermined channel data and a predetermined result signal is input from the frequency detector 24. And a control unit 10 for driving control of the LED display unit 23.

Description

Television receiver with voice multi-channel search

The present invention relates to a television receiver, and in particular, when a user is watching an arbitrary program and continuously searches for another channel to display a program in which a voice multicast is being executed, the channel is displayed by displaying whether or not the voice multicast is executed. The present invention relates to a television receiver having a multi-channel search function that prevents a user from overrecognizing a voice multicast program.

It is equipped with two tuners for tuning the current broadcast signal, and simultaneously tunes two channels of programs so that a program of a first channel can be watched at the same time by using a main screen and a program of a second channel can be simultaneously watched by two screens. There is a popular television receiver.

However, as described above, even if a television receiver having two tuners is used to watch a broadcast program and find out what a program is broadcast on another channel, it is necessary to select a predetermined channel selection means and attempt channel switching. If a channel change is attempted, a problem occurs that the program of the switched channel is played and the user cannot watch a program that was previously viewed.

In addition, even if a user wants to watch a program in which voice multiplexing is executed, the user may not recognize the voice multiplex program currently being broadcast on another channel and may be overly excessive.

Accordingly, the present invention has been made in view of the above circumstances, and when a user is watching a program of a certain channel, the user is continuously searching for another channel and there is a program in which voice multicasting is executed. It is an object of the present invention to provide a television receiver having a different channel search function to prevent a user from recognizing an audio multicast program and being excessive by displaying whether or not a broadcast is executed.

1 is a block diagram showing an internal configuration of a television receiver having another channel search function according to an embodiment of the present invention.

FIG. 2 is a flow chart for explaining the operation of the device in the configuration of FIG.

* Explanation of symbols for main parts of the drawings

1: antenna 2: first tuner

3: first audio IF processor 4: first image IF processor

5: second tuner 6: second audio IF processing section

7: second image IF processor 8: remote controller

9 receiver 10 microprocessor

11: A / V switching unit 12: first audio processing unit

13 speaker 14 second speech processing unit

15: OSD generation unit 16: Image processing unit

17: CRT drive unit 18: CRT

19: channel memory 20: program storage

21: timer 22: state storage unit

23: LED display 24: frequency detector

8a: Function Selection Key 8b: Function Release Key

8c: Voice multi channel switching key

A television receiver having another channel search function according to the present invention for realizing the above object comprises a first and a second tuner for tuning a broadcast signal, a voice processing unit for processing a voice signal from a broadcast signal tuned by the tuner, and A television receiver having a channel memory for storing predetermined channel data; A frequency detector for detecting an audio multiple pilot signal from the broadcast signal tuned through the second tuner, an OSD generator for generating and outputting predetermined OSD pattern data, an LED display installed outside the television receiver, and And a control unit for controlling the driving of the OSD generator and the LED display unit when the second tuner is tuned based on channel data and a predetermined result signal is input from the frequency detector.

In addition, the present invention is configured to further include a channel switching key for selecting a channel switching to a channel in which the voice multiple pilot signal is detected, the control unit is the frequency detecting unit when the channel switching key (8c) is selected The first tuner is tuned based on the channel data of the channel from which the voice multiple pilot signal is detected.

The control unit may control voice multiplexing on the broadcast voice signal tuned through the first tuner.

That is, according to the above, the user can immediately know when the voice multicast is performed in another channel instead of the channel currently being viewed, so that the user can watch without passing the voice multicast program.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention.

1 is a block diagram showing an internal configuration of a television receiver having another channel search function according to an embodiment of the present invention.

In the drawing, reference numeral 1 denotes an antenna for receiving an over-the-air broadcast signal, 2 denotes a first tuner for executing channel selection according to a main broadcast signal according to a control signal of the microprocessor 10, which will be described later. A first audio IF processor for amplifying and detecting a voice signal of a channel tuned by the first tuner 2 and outputting a voice intermediate frequency signal SIF; and 4 amplifying and outputting the video signal output from the first tuner 2; A first image IF processor for detecting and outputting an image intermediate frequency signal PIF.

Further, reference numeral 5 denotes a second tuner for executing broadcast tuning for the sub-broadcast signal according to the control signal of the microprocessor 10, which will be described later, and 6 and 7 are channels tuned by the second tuner 5. And a second audio IF processor and a second video IF processor for amplifying and detecting audio and video signals and outputting audio and video intermediate frequency signals, respectively.

Subsequently, reference numeral 8 denotes a remote control device for the user to control output volume, channel switching and mode switching, or remotely control the whole other device. Search for a channel to be executed, a function selection key 8a for selecting a voice multiple display function for displaying the channel, a function release key 8b for selecting release of the selected voice multiple display function, and the voice multiple display. And a voice multiple channel switch key 8c for channel switching to a corresponding voice multiple broadcast channel searched and displayed by a function, and 9 receives an infrared signal transmitted from the remote control device 8, The receiver 10 converting and outputting the signal is a microprocessor that controls the entire apparatus in accordance with the contracted code signal input from the receiver 9.

Also, reference numeral 11 denotes an image and an audio signal input from the first audio and video IF processor 3 and 4 and the second audio and video IF processor 6 and 7 according to a control signal of the microprocessor 10. A / V switching unit 11 for switching the output.

On the other hand, reference numerals 12 and 14 are not shown for the main or sub-audio signals output from the A / V switching unit 11, respectively, bass, treble (according to the control signal of the microprocessor 10 ( Treble), the first and second voice processing unit for processing the volume control and output to the speaker 13 or headphones, and 15 is for generating and outputting the predetermined OSD pattern data according to the control signal of the microprocessor 10 The OSD generator 16 may adjust brightness, tint, and color of an image signal input through the A / V switching unit 11 according to a control signal of the microprocessor 10. An image processor for outputting corresponding R (Red), G (Green), B (Blue), and luminance (-Y) signals, and 17 denotes RGB and luminance output from the image processor 16. CRT drive for driving CRT 18 connected to the rear stage based on Y-signal A.

In addition, reference numeral 19 is a channel memory for storing predetermined channel data, 20 is a program memory for storing an operation program of the microprocessor 10, and 21 is a predetermined time under the control of the microprocessor 10. The timer 22 which counts and outputs a predetermined counting completion signal when the counting is completed, 22 selects the voice multiple display function mode designated as the function selection key 8a is selected according to the control signal of the microprocessor 10. A state storage unit to be stored as predetermined flag data, 23 is an LED display unit driven in accordance with the control signal of the microprocessor 10, 24 is a voice multicast from the video signal output from the second image IF processing unit 7 When a predetermined pilot signal is detected, the frequency detector outputs a predetermined detection result signal accordingly.

Next, the operation of the device having the above configuration will be described.

First, when the power is turned on by the user, the microprocessor 10 tunes and controls the first tuner 2 based on predetermined channel data stored in the channel memory 19 in a normal state. do. Subsequently, the broadcast signal tuned by the first tuner 2 is processed by video and audio, respectively, and output to the CRT 18 and the speaker 13 to perform a broadcast signal reproducing operation (step ST1).

On the other hand, when the user selects the function selection key 8a in order to set the voice multiple display function, the microprocessor 10 sets and records the state storage unit 22 as predetermined flag data for the corresponding mode. The microprocessor 10 retrieves the state data of the state storage unit 22 when the power is turned on (step ST2).

At this time, when the state data of the state storage unit 22 is set to the voice multiple display function (step ST3), the second tuner 5 is sequentially operated based on the channel data of the channel memory 19. Tuning control (step ST3).

In addition, the frequency detector 24 detects a voice multiple pilot signal based on the video signal output from the second image IF processor 7. The microprocessor 10 determines the frequency from the frequency detector 24. When the detection result signal is received (step ST5), the LED display unit 23 is driven to control a predetermined LED display operation (ST6 step), and the OSD generator 15 is driven to, for example, voice multiplexing. Control to generate and control predetermined OSD pattern data for the program (step ST7). In this case, the microprocessor 10 continuously tunes and controls the second tuner 5 based on the channel data of the channel where the voice multiple broadcast signal is detected.

In addition, at this time, the microprocessor 10 counts the timer 21 (step ST8).

Subsequently, the microprocessor 10 searches whether the voice multi-channel switching key 8c is input before the predetermined counting result signal is input from the timer 21 (steps ST9 and ST10). When the counting result signal is inputted from the timer 21, the LED display unit 23 and the OSD generator 15 are controlled to suppress the driving (step ST11).

On the other hand, when the channel selection signal for the voice multiple channel switching key 8c is input in step ST9, the microprocessor 10 tunes and controls the first tuner 2 based on the corresponding channel data (ST12). step).

In addition, the microprocessor 10 controls the first voice processing unit 12 to multi-process the voice signal which is tuned and input through the first tuner 2. The speakers are output to the speakers 13L and 13R, respectively (ST13 step).

On the other hand, if the function release key 8b is input after the step ST3, that is, after the voice multiple display function is selected, the microprocessor 10 immediately releases the function.

That is, according to the above embodiment, the user can immediately know when the voice multicast is executed in another channel instead of the channel currently being viewed, so that the user can watch without passing the voice multicast program.

On the other hand, the present invention is not limited to the above embodiments and can be modified in various ways without departing from the technical gist of the present invention.

As described above, according to the present invention, when a user is watching a program of an arbitrary channel, if a user is continuously searching for another channel and there is a program that is executing the voice multicasting, the channel may display whether or not the voice multicasting is executed. In this way, it is possible to realize a television receiver having a different channel search function, which prevents a user from being overly aware of a voice multicast program.

Claims (4)

First and second tuners 2 and 5 for tuning broadcast signals, a voice processor 12 for processing audio signals in the broadcast signals tuned by the tuners 2 and 5, and predetermined channel data, respectively. A television receiver having a channel memory 19 to be stored; A frequency detector 24 for detecting a voice multiple pilot signal from the broadcast signal tuned through the second tuner 5; An OSD generator 15 for generating and outputting predetermined OSD pattern data; LED display unit 23 provided outside the television receiver, The second tuner 5 is tuned and controlled based on predetermined channel data, and when a predetermined result signal is input from the frequency detector 24, the OSD generator 15 and the LED display 23 are driven to be controlled. Television receiver having another channel search function characterized in that it comprises a control unit (10). 2. The apparatus according to claim 1, further comprising a channel switch key (8c) for selecting a channel switch to a channel in which the voice multiple pilot signal is detected. When the channel switch key 8c is selected, the controller 10 tunes and controls the first tuner 2 based on the channel data of the channel where the voice multiple pilot signal is detected by the frequency detector 24. Television receiver having another channel search function, characterized in that. The television receiver according to claim 2, wherein the control unit (10) controls voice multiplexing processing for the broadcast audio signal tuned through the first tuner (2). The apparatus of claim 1, further comprising a timer (21) for counting a predetermined time and outputting the counting result signal. The control unit 10 controls the timer 21 when a predetermined result signal is input from the frequency detector 24, and when the count result signal is input from the timer 21, the OSD generator 15. And a driving stop of the LED display unit (23).