KR0168580B1 - Sub-screen searching apparatus in fllowed seeing and hearing time of television/cable television - Google Patents

Abstract

The present invention relates to a small screen search apparatus according to the viewing time of television / wired broadcasting, and in particular, when one mode of broadcasting, such as television broadcasting or cable broadcasting, is continuously watched for a predetermined time, the broadcasting of the other mode automatically returns to the small screen. It relates to a small screen search apparatus according to the viewing time to be able to search.

In other words, the mode switching unit 120 for switching between the broadcast mode of television broadcasting and cable broadcasting, a timer 130 for counting a predetermined time when watching television in one broadcasting mode and outputting a signal, and the timer 130 A main control unit 130 for controlling the second tuner 5 and the PIP processing module unit 20 as an output signal to output a control signal for outputting a small screen to the main screen, and a signal of the main control unit 130. OSD generation unit 110 for outputting a predetermined character information on the main screen, and the control data storage unit 140 connected to the main control unit 130 to switch the broadcast mode while watching TV or cable broadcasting ) To increase the convenience of viewers and improve the function of television.

Description

Small screen search device according to watching time of TV / Cable broadcasting

1 is a block diagram showing the structure of a conventional television receiver for outputting a small screen.

2 is a block diagram of a small screen search apparatus according to the viewing time of television / wired broadcasting according to the present invention;

3 is a flowchart of a small screen search apparatus according to the viewing time of television / wired broadcasting according to the present invention;

* Explanation of symbols for main parts of the drawings

1, 4: Antenna 2, 5: Tuner

3, 6: intermediate frequency amplifier 10: main signal processor

11: A / D converter 12: mixer

13: D / A converter 14: voice amplifier

15: Speaker 16: CRT drive part

17: CRT 20: PIP processing module

30: remote control 31: receiver

32,100: main control unit 33,110: OSD generation unit

120: mode switching unit 130: timer

140: data storage

The present invention relates to a small screen search apparatus according to the viewing time of television / wired broadcasting, and in particular, when one mode of broadcasting such as television broadcasting or cable broadcasting is continuously watched for a predetermined time, the other mode broadcasting is automatically brought to the small screen. It relates to a small screen search apparatus according to the viewing time to be able to search.

In general, a television is divided into a color signal, a contrast signal, and a synchronization signal, which are video signals. When a contrast signal and a color signal are mixed and converted, an image is formed in a CRT. The synchronization signal is a signal of an image transmitted from a broadcasting station, and a picture is represented by 525 lines, which is a conversion device necessary to prevent each line from being disturbed in the CRT.

In other words, it is the TV screen that we are seeing that is transmitted as a line and shown as a picture. The number of screens sent to the receiver in one second from the broadcasting station is 30, and the number of lines (scanning lines) that make one screen in one second is drawn with 525 strands X 30 sheets = 15,750 strands.

Therefore, since the contrast of the same place changes every 1/30 second, the movement can be fully expressed.

In short, the basic principle of television is hidden in transmission and reception. The first process is to divide one image into the minimum unit of appeal, photoelectrically convert one by one in a certain order, and then send them one by one. Then, the receiving side, on the contrary, converts light in electricity, and thus becomes a structure of the original image. This process is called an injection, and the injection is repeated one horizontal scan from the upper left to the lower right of the screen.

This is the process by which the program produced by the broadcasting station can be seen in the same place in the viewer's desired place.

Conventionally, a television receiver having a picture in picture (PIP) function includes first and second antennas (1) and (4) for receiving over-the-air broadcast signals, as shown in the attached first diagram, and the first and second antennas ( 1) the first and second tuners 2 and 5 for tuning the broadcast signal received by (4) and the respective intermediate frequency signals output from the first and second tuners 2 and 5, respectively. Processing the first and second intermediate frequency amplifiers 3 and 6 to amplify, and the image intermediate frequency signal PIF and the audio intermediate frequency signal SIF output from the first intermediate frequency amplifier 3. The main signal processor 10, the audio amplifier 14 for outputting the audio signal output from the main signal processor 10 to the speaker 15, and the video signal output from the main signal processor 10 CRT PIP processing for processing the CRT driver 16 outputted on the 17 and the video intermediate frequency signal PIF and the audio intermediate frequency signal SIF output from the second intermediate frequency amplifier 6; It consists of a module unit 20.

In addition, the viewer receives a remote control 30 and the infrared signal transmitted from the remote control 30 for controlling the output volume, channel switching or other devices remotely, converts it into an electrical signal and outputs it. A control unit corresponding to the receiving unit 31, a main control unit 32 for controlling the entire apparatus according to the code signal input from the receiving unit 31, and a corresponding control signal according to a predetermined control signal from the main control unit 32. By outputting a predetermined on-screen display pattern data corresponding to the OSD generation section 33 for informing the user of the overall operation status of the device, such as channel switching or volume control.

The main signal processor 10 includes an A / D converter 11 for converting an intermediate frequency signal, which is an analog signal input from the first intermediate frequency amplifier 4, into a digital signal, and the A / D converter ( 11) and a mixer 12 for processing signals input from the PIP processing module 20 and the OSD generator, and a D / A converter for converting and outputting digital signals output from the mixer 13 into analog signals. It consists of 13.

That is, in the television having the above-described configuration, when the viewer selects a channel with a plurality of selection buttons configured on the remote controller 30 or selects the volume, the image quality, or the function of the voice, the selected channel is executed. The channel broadcast signal tuned according to the control is processed by the main signal processor 10 and the PIP processing module 920 to output audio and video signals through the CRT 17 and the speaker 15.

In connection with this, when a viewer of a television is watching a TV broadcast or a cable broadcast, the user can select a selection button configured on the remote controller to switch the broadcast mode to view the broadcast mode. In addition, when watching a broadcast for a predetermined time in the current broadcast mode, even if the viewer prefers to broadcast in the other broadcast mode, the viewer can not easily recognize this, there is a problem that it is easy to miss a program to air to other broadcasts.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and automatically searches for a different broadcast mode through a small screen when watching one channel continuously for a predetermined time in either a broadcast mode of a television broadcast or a cable broadcast with a television receiver. The purpose is to increase the convenience of the viewer and to improve the function of the television receiver.

The above object is a mode for switching the broadcasting mode of television broadcasting and cable broadcasting in a television receiver equipped with a main signal processor and a PIP management module for processing the detected video and audio signals based on the broadcast signal received by the antenna. A switching unit, a timer for outputting a signal by counting a predetermined time when watching TV in one broadcasting mode, and outputting a small screen on the main screen by controlling the second tuner and the PIP processing module with the output signal of the timer. A main control unit for outputting a control signal, an OSD generating unit for outputting predetermined character information on the main screen as a signal of the main control unit, and a data storage unit for storing control data for switching a broadcasting mode while watching TV or cable broadcasting; It can be achieved by configuring.

That is, according to the present invention having the above-described configuration, when the cable broadcasting is connected to the television, the viewer can tune to a certain channel of the television broadcasting or the cable broadcasting to search for the other party's broadcasting on a small screen when a certain time has elapsed while watching. By doing so, it is possible to enhance the viewer's convenience by improving the function of the television receiver.

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

2 is a block diagram of a small screen search apparatus according to the viewing time of television / wired broadcasting according to the present invention. FIG. 2 is given the same reference numerals for the same elements configured in FIG. 1, and a detailed description thereof is omitted. do.

2, the viewer automatically selects a TV broadcast or cable broadcasting channel, receives an infrared signal transmitted from the remote controller 30 by the receiver 31, and converts the infrared signal into an electrical signal. 100), and the main controller 100 controls the first half of each device according to the code signal input from the receiver 31.

In addition, the OSD generating unit 110 is to output the character information on the main screen under the control of the main control unit 100, the mode switching unit 120 to switch each broadcast mode under the control of the main control unit 100. The timer 130 is to count a predetermined time after the tuning of one broadcast mode from the remote controller 30, and the data storage unit 140 stores the channel of the selected TV broadcast or cable broadcasting, or the TV broadcast or cable broadcasting. Control data for automatically switching the broadcast mode while watching a broadcast is stored.

According to the present invention configured as described above, when the television viewer selects the TV broadcasting or the cable broadcasting which is the broadcasting mode of the television by the remote controller 30, and watches a predetermined time, the main control unit 100 has a predetermined time counted from the timer 130. Judging by the elapsed time, and outputs a small screen on the main screen with the control data stored in the data storage unit 140.

That is, when a signal is input from the timer 130, the main control unit 100 controls the mode switching unit 120 to switch the broadcast mode of the opponent watching on the main screen, and tunes the second tuner 5 to the opponent. Search for channels in the broadcast. At this time, the main control unit 100 controls the OSD generating unit 110 to output a character information to search for the relative channel, because the channel is watched for a predetermined time in a predetermined broadcast mode on the main screen.

The broadcast signal tuned from the second tuner 5 is amplified to a predetermined level by the second intermediate frequency amplifier 6 and then input to the PIP processing module 20, and the PIP processing module 20 is broadcast. The signals are separated into video and audio signals, respectively, and output to the mixer 12 of the main signal processor 10. The mixer 12 outputs each video and audio signal outputting a small screen on the main screen as a digital signal. The digital signal is output to the speaker 15 and the CRT 17 via the CRT driver 16.

The timer 130 counts from the first time when one broadcasting mode is set from the remote controller 30 and outputs a signal to the main control unit 100, and when the viewer selects a mode of another broadcasting output on a small screen, It counts again and counts again for a certain time even when the current broadcasting mode is switched without continuing switching.

The small screen output on the main screen is automatically turned off after sequentially tuning the channels stored in the data storage 140 at predetermined time intervals. This state is made at a certain time interval, and while the viewer is watching the broadcast in the current broadcast mode, the channel broadcasted in the other broadcast mode is output on the small screen so that the viewer can find out whether the preferred broadcast is being broadcast. It can provide improved convenience to the.

Referring to the flowchart of the small screen search apparatus according to the viewing time of the television / wired broadcasting of FIG. 3, first, the control unit 120 performs normal television broadcasting while the television receiver is powered on. The signal is reproduced (S201). It is determined whether the viewer is a viewer for a predetermined time in a predetermined broadcast mode on the main screen without a small screen (S202). This determination occurs after counting the timer 130 for a predetermined time. If the broadcast is watched for a predetermined time in one broadcast mode in step S202, the second tuner 5 is tuned, and the PIP processing module 20 is controlled to output a small screen on the CRT 17. At this time, the broadcast channels tuned and stored in the data storage 140 start sequentially at predetermined time intervals (S203).

In addition, the main controller 100 controls the OSD generator 110 to output the character information indicating that the other party is searching for the broadcast because the user is watching the broadcast on the CRT 17 for a predetermined time (S204).

The main control unit 100 determines whether the small screen output on the main screen is tuned for a predetermined time and the tuning is completed for a predetermined time per stored channel (S205). If there is no broadcast preferred by the viewer in step S205, and there is no broadcast mode selection of the other party, the tuning state of the second tuner 5 is turned off (S206).

That is, in order to facilitate the viewer's convenience when watching the broadcasting mode of the television broadcasting or the cable broadcasting without switching for a predetermined time, the relative broadcasting mode of the current broadcasting mode is output on the small screen so as not to miss the broadcasting which the viewer prefers.

In addition, this invention is not limited to the said Example, It can implement in a various deformation | transformation in the range which does not deviate from the technical summary of this invention.

As described above, in the exemplary embodiment of the present invention, when the viewer watches one broadcast mode for a predetermined time, the viewer switches the fire mode to the other broadcast mode, tunes the second tuner, and controls the PIP processing module. By outputting a small screen on the CRT, the viewer outputs the other broadcast without any selection, thereby improving the convenience of the viewer and improving the function of the television.

Claims (1)

A television receiver comprising a main signal processing unit and a PIP processing module unit for processing video and audio signals detected on the basis of a broadcast signal received by an antenna, comprising: a mode switching unit for switching broadcast modes of television broadcasting and cable broadcasting; Timer outputs a signal by counting a predetermined time when watching TV in one broadcasting mode, and outputs a control signal for outputting a small screen on the main screen by controlling the second tuner and the PIP processing module with the output signal of the timer. A main control unit, an OSD generating unit for outputting predetermined character information on the main screen by a signal of the main control unit, and control data connected to the main control unit for switching broadcasting modes while watching TV or cable broadcasting. Small screen search apparatus according to the viewing time of the TV / cable broadcasting, characterized in that configured to include.