KR0181405B1 - Apparatus and method for program searching of a television that is turn off - Google Patents

Abstract

When the TV is powered off, the program receives the KBPS signal transmitted from the broadcasting station, searches each channel, and when the type of the program set by the viewer is received, the program is automatically turned on to output the program set by the user. Disclosed are a search apparatus and a method thereof.

According to the present invention, in the program search method of a television receiving a KBPS signal transmitted from a broadcasting station and performing predetermined control, it is determined whether the viewer has set the program search mode, and if the program search mode is set, whether the television is turned off. Determining; Determining whether a KBPS signal is detected if the television is turned off after the program search mode is set in the above step, and if the KBPS signal is detected, searching for a field of a program received for each channel; In this step, it is determined whether the program field set by the viewer is searched, and when the program set by the viewer is searched, the television is operated and the searched program is output. Therefore, the present invention receives the KBPS signal transmitted from the broadcasting station at the turn-off of the television and automatically searches for the program broadcast in each channel, thereby increasing the convenience of use.

Description

Program search apparatus and method for powering off a television

1 is a schematic block diagram showing the configuration of a program searching apparatus when a television is powered off according to the present invention;

2 is a flowchart illustrating a program searching method when the television is powered off according to the present invention.

* Explanation of symbols for main parts of the drawings

10: antenna 20: tuner

30: IF circuit 40: audio signal output section

41: voice processing unit 42: amplifying unit

43: speaker 50: video signal output unit

51: image processor 52: mixer

53: OSD generator 54: CRT drive circuit

55: CRT 60: KBPS detection unit

70: control unit 80: function setting unit

81: remote controller 81: receiver

The present invention relates to an apparatus and method for searching for a program when the TV is powered off. In particular, the present invention is directed to receiving a KBPS signal transmitted from a broadcasting station when the television is powered off and searching each channel. The present invention relates to a program searching apparatus and a method for turning off a television and outputting a program set by a user.

In general, a unique function of television is to output video and audio signals of television broadcast signals transmitted from broadcasting stations. The current television broadcasting function is added with various functions for doubling the unique function of the television. Various functions added to a television are classified into functions added when a video station and an audio signal are transmitted by a broadcasting station and functions added when a television is produced.

Examples of functions added during the production of the television include a function of outputting a uniform image when the television is viewed by flattening the screen, and a function of freely adjusting a video signal and an audio signal output from the television according to the needs of the viewer. . In addition, a function added to the transmission of audio and video signals from a broadcasting station is typically a broadcast information transmitting function that allows a viewer to add various types of broadcasting information to the audio and video signals.

The broadcast information transmission protocol is provided in the broadcast information transmission function. At present, there is a broadcasting information transmission protocol called Korean Broadcasting Program System (hereinafter referred to as KBPS). The KBPS converts broadcast program recording data into a digital signal on a television signal, and inserts it into any one line of the vertical blanking interval to be transmitted together with the broadcast signal. The transmitted signal is demodulated on the receiving side to perform reservation recording and automatic time setting of the broadcast program.

The data of the KBPS includes standard time information, daily program formation operation information, currently broadcasting program information, continuous program information, update information in the case of a continuous program, and information in case of cancellation / change / addition / advancement. Therefore, the user can transmit the KBPS signal to execute accurate program reservation recording, and can automatically set the time to record a continuous program. In addition, there is a function of providing detailed program guide information and classifying and deleting broadcast programs. That is, since the data transmitted in KBPS is given a unique code for each program, the program corresponding to this code data is recorded.

Conventional televisions do not satisfy the various tastes of the viewer. In other words, except for the functions necessary for the television, that is, the volume adjustment, the screen state adjustment, and the like, various functions of the broadcast program cannot be realized by using various kinds of information. Among these inconveniences, there was a problem that the viewer can not watch the program to watch when the television is turned off.

Accordingly, there is a need for a television that provides an improved function to a viewer of a television by using a KBPS signal representing various kinds of information about a program transmitted from a broadcasting station.

The present invention has been made in view of the above problems and necessities, and when a viewer inputs a KBPS signal indicating a type of program to be watched and then turns off the television, the TV automatically receives a KBPS signal transmitted from a broadcasting station. It is an object of the present invention to provide a program searching apparatus and method for turning off a television which automatically turns on the television and outputs a program set by the user when a program type set by the viewer is received while searching for each channel. .

The apparatus and method for searching for a program when the television is powered off to achieve the above object, an antenna for receiving a television signal transmitted from a broadcasting station, a tuner connected to the output terminal of the antenna and tuned to a frequency selected by the viewer, An IF circuit connected to an output terminal of a tuner for detecting an intermediate frequency band of the selected television signal, a voice signal output unit connected to one output terminal of the IF circuit to amplify an audio signal from an input signal and output the same through a speaker; It is connected to the other output terminal of the amplified video signal from the input signal and output through the CRT, and the video signal output unit for outputting the character information to the television comprising a video signal output unit for outputting the character information to the television, including the OSD generator In television constituted, teleoperation of key operation of viewer A function setting unit for setting a program search mode when the vision is turned off; A KBPS detection unit connected to an output terminal of the IF circuit and detecting a KBPS signal for a program transmitted from a broadcasting station; And a control unit connected to an output terminal of the KBPS detection unit to read a KBPS signal to control a search of a program set by a viewer when the television is turned off, and an output of the program.

According to another aspect of the present invention, a television which receives a KBPS signal transmitted from a broadcasting station and performs predetermined control determines whether the viewer has set the program search mode in the program search method. Determining whether it is off; Determining whether a KBPS signal is detected if the television is turned off after the program search mode is set in the above step, and if the KBPS signal is detected, searching for a field of a program received for each channel; In this step, it is determined whether the program field set by the viewer is searched, and when the program set by the viewer is searched, the television is operated and the searched program is output.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram showing the configuration of a program searching apparatus when a television is powered off according to the present invention.

As shown in FIG. 1, the apparatus for searching for a program when the television is powered off according to the present invention has an antenna 10 for receiving an image signal and an audio signal transmitted from a broadcasting station, and is mounted at a predetermined position of the television. This output stage is connected to a tuner 20 for tuning the frequency according to the channel selected by the viewer among the plurality of received frequencies. An output terminal of the tuner 20 is connected to an IF circuit 30 which detects, amplifies, and outputs an intermediate frequency band of a video signal and an audio signal tuned by the tuner 20. An audio signal output unit 40 for amplifying and outputting a voice signal from among the input signals is connected to one output terminal of the IF circuit 30, and an amplifying video signal among the input signals to the other output terminal of the IF circuit 30. And a video signal output unit 50 to be output. In addition, the output terminal of the IF circuit 30 is connected to the KBPS detection unit 60 for detecting a KBPS signal representing various information about the program included in the video and audio signals transmitted from the broadcasting station. The output terminal of the KBPS detection unit 60 is connected to a control unit 70 for performing various controls for the operation of the television, the remote control 81 for transmitting a signal for setting the function selected by the viewer to the input terminal of the control unit 70 And a function setting unit 80 configured to receive a signal transmitted from the remote controller 81 and receive the signal to the control unit 70.

Here, the voice signal output unit 40 is configured as follows. The output terminal of the IF circuit 30 is connected to a voice processor 41 for removing a noise or the like contained in the voice signal and processing the voice. An amplifying unit 42 is connected to an output terminal of the voice processing unit 41 for receiving a control signal of the control unit 70 and receiving an audio signal of a small signal, which has been processed, into a large signal. A speaker 43 for outputting a voice signal to a viewer is connected to the output end of the speaker.

In addition, the configuration of the video signal output unit 50 is as follows. An image processing unit 51 is connected to an output terminal of the IF circuit 30 to process an image by removing noise included in the image signal. The image processor 51 receives an R (Red), G (Green), B (Blue) color signal and luminance signal Y outputted from the image processor 51, and the controller 70 A mixer 52 for synthesizing the R, G, and B signals input from the OSD generating device 53 for generating text signals under control is connected. The output terminal of the mixer 52 receives the control signal of the control unit 70 and is based on the color signals and the luminance signals Y of R (Red), G (Green), and B (Blue) output from the mixer 52. The CRT driving circuit 54 for driving the CRT (Cathode-Ray Tude) (hereinafter referred to as CRT) 55 is connected.

The operation of the present invention configured as described above. The effects will be described in detail with reference to FIGS. 1 and 2 as follows.

2 is a flowchart illustrating a program searching method when the television is powered off according to the present invention.

First, as shown in FIG. 1, the present invention is a digital signal indicating a video signal and an audio signal corresponding to each program and a variety of information about a program transmitted to a carrier frequency of the video signal and the audio signal through an airwave at a broadcasting station. When the transmission includes the KBPS signal, the signal is received by the antenna 10 attached to the television. When the user selects a specific channel through the function setting unit 80, the control unit 70 outputs a control signal to the tuner 20 to detect only a specific frequency band, thereby selecting a specific frequency among the plurality of received frequencies. The specific frequency input from the tuner 20 detects an intermediate frequency band of an image signal, an audio signal, and a KBPS signal in the IF circuit 30.

The speech signal detected by the IF circuit 30 is applied to the speech processing section 41 in the speech signal output section 40 and then amplified by the amplifying section 42 after the speech processing to remove noise. Is output via

In addition, the image signal detected by the IF circuit 30 is applied to the image processing unit 51 in the image signal output unit 50 to remove noise, and then R (Red), G (Green), B (Blue). The color signal and luminance signal Y are output. The color signal and luminance signal Y of R (Red), G (Green), and B (Blue) output from the image processor 51 are input to the mixer 52. In the mixer 52, R (Red), G (Green), and the output from the OSD generator 53 for generating a text signal under the control of the image signal and the control unit 70 and the image signal output from the image processor 51 A color signal of B (Blue) and a luminance signal Y are input and synthesized to output the color signals of R (Red), G (Green), and B (Blue) and a luminance signal (Y). A CRT driving circuit 54 is connected to the output terminal of the mixer 52 and based on the color signals and the luminance signals Y of R (Red), G (Green), and B (Blue) output from the mixer 52. The CRT 55 is driven to output an image to the viewer.

Here, the KBPS detection unit 60 connected to the output terminal of the IF circuit 30 detects the KBPS signal representing various information about the program transmitted from the broadcasting station and inputs it to the control unit 70. In the present invention, when the control unit 70 sets the search function of the program to be watched when the television is turned off by the remote control 81 operation in the user's function setting unit 80, it is detected by the KBPS detection unit 60. Each channel is searched using the KBPS signal, and when the set program is searched, the television turns on and outputs the searched program.

In the method of searching for a program when the TV is powered off according to the present invention, as shown in FIG. 2, the control unit 70 searches for a program broadcast in each channel when the viewer turns off the television through the function setting unit 80. It is determined whether the search mode is set (step 101). That is, it is determined whether the KBPS signal indicating the type of program that the viewer wants to watch and the search function for the program to be watched at the time of turning off the television are set through the remote controller 81 of the function setting unit 80. If the viewer has set the search mode in this step, the control unit 70 determines whether the television is turned off (step 102). Since the search mode input by the viewer in step 101 is a mode for searching for a program field set by the viewer, that is, a drama field, a news field, and a movie field, in a turn-off state of the television, that is, the television is in a standby state. 70 determines whether the television is turned off. If the television is turned off in step 102, the controller 70 determines whether the KBPS signal is input from the KBPS detector 60 (step 103). When the KBPS signal is input in step 103, the controller 70 searches for each channel to determine whether the program type set by the viewer is received based on the KBPS signal transmitted from the broadcasting station (step 104). In step 104, the controller 70 searches each channel based on the KBPS signal and determines whether the type of the program input by the viewer is searched (step 105). When the type of the program input by the viewer is found in step 105, the control unit 70 turns the television on, that is, converts it into an operating state (step 106), and then outputs the program found in step 105 (step 107). .

According to the present invention, when a television inputs a KBPS signal indicating a type of a program that a viewer wants to watch and then turns off the television, the television automatically receives a KBPS signal transmitted from a broadcasting station, searches for each channel, and then sets the viewer. When the type of the program is received, the television is automatically turned on to output the program set by the viewer. Thus, it increases the usability of the viewer and provides the television with improved function.

As described above, one embodiment of the present invention has been described with reference to the accompanying drawings, but the present invention is not limited thereto, and modifications and improvements are possible within the ordinary knowledge of those skilled in the art.

Claims (2)

An antenna 10 for receiving a television signal transmitted from a broadcasting station, a tuner 20 connected to an output terminal of the antenna 10 for tuning a frequency selected by a viewer, and a television signal connected to and tuned to an output terminal of the tuner 20 IF circuit 30 for detecting the intermediate frequency band of the audio signal output unit 40, which is connected to one output terminal of the IF circuit 30 to amplify the audio signal from the input signal through the speaker 43, The video signal output unit 50 is connected to the other output terminal of the IF circuit 30, amplifies the video signal from the input signal and outputs it through the CRT 55, and outputs the character information to the television including the OSD generator 53. A television comprising: a function setting unit (80) for receiving a key operation of a viewer and setting a program search mode when the television is turned off; A KBPS detector (60) connected to an output terminal of the IF circuit (30) to detect a KBPS signal for a program transmitted from a broadcasting station; And a control unit 70 connected to an output terminal of the KBPS detection unit 60 to read a KBPS signal and control the search of a program set by the viewer at the time of turning off the television and the output of the program. Program search device at power off. In a program search method of a television receiving a KBPS signal transmitted from a broadcasting station and performing predetermined control, determining whether the viewer has set the program search mode, and if the program search mode is set, determining whether the television is turned off. (101-102); Determining whether a KBPS signal is detected if the television is turned off after the program search mode is set in the above step, and if the KBPS signal is detected, searching for a field of a program received for each channel (103-104); Determining whether the program field set by the viewer is searched, and if the program set by the viewer is found, operating the television and outputting the found program (105-107). Program search method when off.