KR0166564B1 - Broadcasting mode switching apparatus for a frequent channel-tuning of tv/catv - Google Patents

Abstract

The present invention relates to a broadcasting mode switching device for TV / wired broadcasting during frequent channel selection, and in particular, the channel and other broadcasting channels are automatically switched by automatically switching the television broadcasting and cable broadcasting during frequent tuning for a predetermined number of times or more within a predetermined time. The present invention relates to a broadcast mode switching device.

That is, the selection means 100 provided with a selection button for the viewer of the TV to select the channel, the mode switching unit 130 for switching between the TV broadcasting and the cable broadcasting mode, and the input means from the selection means 100 A counter 140 for counting the number of selection buttons, a timer 150 for integrating a predetermined time in preparation for a signal input from the selection means 100, and television broadcasting selected by the selection of the selection means 100; And a TV / wired broadcasting tuning memory unit 170 for storing a channel of the cable broadcasting, and whether the operation of the channel tuning mode has been applied from the selecting means 100 at a predetermined number of times for a predetermined time. Switch the mode of television broadcasting and cable broadcasting, and control the control means 120 for controlling the tuner 2, and stores the signal input from the selection means 100 under the control of the control means 120, The counter ( 140 and the control data storage unit 160 for storing information from the timer 150 are configured to increase the convenience of the viewer and improve the function of the television.

Description

Broadcast mode switching device for TV / wired broadcasting during frequent channel selection

1 is a block diagram showing the configuration of a general television receiver.

2 is a block diagram of an apparatus for automatically switching a broadcast mode of television / wired broadcasting according to the present invention.

3 is a flowchart of a broadcast mode switching of television / wired broadcasting according to the present invention.

* Explanation of symbols for main parts of the drawings

1: antenna 2: tuner

3: Intermediate Frequency Amplifier 4: Video / Audio Frequency Signal Separator

5: voice detector 6: image detector

7,100: remote controller 8,110: receiver

9,120 control unit 10: voice processing unit

11: voice amplifier 12: speaker

13: OSD generation unit 14: Image processing unit

15 mixer 16 CRT drive unit

17: CRT 130: mode switching unit

140: Counter 150: Timer

160: control data storage unit 170: tuning memory unit

The present invention relates to a broadcasting mode switching device for TV / wired broadcasting during frequent channel selection, and in particular, the channel and other broadcasting channels are automatically switched by automatically switching the television broadcasting and cable broadcasting during frequent tuning for a predetermined number of times or more within a predetermined time. The present invention relates to a broadcast mode switching device.

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 one picture is represented by 525 strands, which may be referred to as a converter necessary for preventing each of these lines from being disturbed on 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 by the broadcasting station is 30, and the number of lines (scanning lines) that make one screen in one second is drawn with 525 strands × 30 scenes = 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 a single image into pixels of the minimum unit, 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.

Therefore, a general television receiver includes an antenna 1 for receiving an airwave broadcasting signal, a tuner 3 for tuning the broadcast signal received by the antenna 1, and the tuner 3 as shown in FIG. The intermediate frequency amplifier 3 for amplifying the intermediate frequency signal outputted from the) and the intermediate frequency signal outputted from the intermediate frequency amplifier 3 are converted into an image intermediate frequency signal PIF and an audio intermediate frequency signal SIF. An image / audio frequency signal separator 4 comprising a surface acoustic wave filter for separating and an audio detector 5 for detecting an audio signal from an audio intermediate frequency signal separated and output from the image / audio frequency signal separator 4 And an image detector 6 for detecting an image signal from an image intermediate frequency signal output from the image / audio frequency signal separator 4.

In addition, the viewer receives a remote control (7) for controlling the output volume and channel switching or other devices, and the infrared signal transmitted from the remote control (7) to convert it into an electrical signal and output it A receiving unit 8 and a control unit 8 for controlling the entire apparatus in accordance with the code signal input from the receiving unit 8 is composed of.

And a voice processing unit for performing voice processing such as bass, treble, and volume according to a control signal from the controller 9 with respect to the voice signal output from the voice detector 5 ( 10) and a voice amplifier 11 for amplifying and outputting the voice signal processed by the voice processor 10 to the speaker 12.

In addition, by outputting predetermined on-screen display pattern data corresponding to the corresponding control signal in accordance with the predetermined control signal from the control unit 9 to inform the user of the overall operation of the device such as channel switching or volume control. Color, tint, brightness, etc. according to a control signal from the controller 9 for the OSD generator 13 and the image signal output from the image detector 6. An image processor 14 for outputting R, G, B (red, green, blue; red, green, blue) and luminance (Y) signals corresponding to an image signal, and outputting from the image processor 14 A mixer 15 for mixing and outputting the R, G, B and luminance Y signals and the R ', G', B 'and on-screen display blanking signals Y' outputted from the OSD generator 13; And driving the CRT 17 based on the R, G, B and luminance (Y) signals output from the mixer 15. The key consists of the CRT driver 16.

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 7 or selects the volume, the image quality or the function of the voice, the tuner 9 performs the tuned broadcast. The channel broadcast signal tuned according to the control is detected by the voice detector 5 and the image detector 6 and output through the CRT 17 and the speaker 12.

In addition, since March 1, 1995, cable television (CATV) has begun to air in Korea, and this makes TVs provide infinite information.

Cable television refers to a broadcast that can transmit and receive a program by connecting to a broadcast station using a coaxial cable or an optical cable. In contrast, broadcasts transmitted from a plurality of broadcast stations transmit image information wirelessly, whereas cable broadcasting subscribes through a cable. The cable TV is called a comprehensive cable broadcasting system.

Originally, cable television receives airwaves transmitted from broadcasting stations by installing a repeater or antenna for receiving airwaves in a high mountain, such as a high mountain, and receives the received broadcast signals by cable. Or, it was to transmit television image of clearer picture quality by relaying airwaves to subscribers such as areas where airwaves are not received cleanly by interference.

In the beginning, it was merely a broadcast, but as the subscribers' desire for the sights increased, wired broadcasting stations producing and transmitting their own programs were expanding day by day.

Cable TV has been spotlighted as an important delivery and information medium in the information age in that it can supply various programs through multiple channels. Cable TV is a specialized channel with unique programs for each channel. You can watch.

For example, subscribers can provide a variety of information through television by watching news channels for those interested in current affairs, sports channels for sports or leisure, and movie channels for movie enthusiasts. In addition to being able to receive, it is a big advantage in that viewers can actively select and select their own channels.

Moreover, cable television has a wide range of applications in the information service field, and can handle home shopping and banking services by connecting to computers, including crime prevention, disaster prevention and automatic meter reading.

However, in case of receiving airwave broadcasting and cable broadcasting by connecting a wired cable to the television receiver, an automatic channel setting apparatus is used to automatically tune the channel transmitted by the TV broadcasting and the cable broadcasting by the remote controller so that only the tuned channel is received. There is a case.

That is, only signals that are currently received from television and output video and audio from the CRT and the speaker above a certain level are automatically tuned and stored in the memory, so that only the channels tuned by the channel up / down are output.

Therefore, when a viewer purchases a television for the first time or changes the position of the television, or when a new channel is subscribed to a specific channel, only the received channel should be tuned using the automatic channel setting device. At this time, the viewer frequently tunes in to find a preferred broadcast while watching TV, or in order to determine which channel is beneficial, the broadcast of other channels or the broadcast of multiple channels is frequently performed by up / down of the channel for a certain time. In the case of changing the channel or selecting a channel directly, the viewer has had to change the mode of TV broadcasting and cable broadcasting as well as the time taken to select various broadcasting channels.

That is, the viewer is inconvenient to automatically tune only the airwaves received from the television in the cable broadcasting mode, and then automatically tune only the cable broadcasting received from the cable in the cable broadcasting mode.

The present invention has been made in view of the above disadvantages, and when watching a TV broadcast or cable broadcasting, the mode of TV broadcasting and cable broadcasting automatically without input of a separate selection button when the channel is tuned more than a certain number of times for a predetermined time. It is an object of the present invention to provide a broadcast mode automatic switching device for switching the TV to increase the convenience of the television viewer.

In order to achieve the above object, in a television receiver equipped with video / audio processing means for processing video and audio signals detected on the basis of a broadcast signal received by an antenna, a selection button for viewers to select a channel is provided. A selection means provided, a mode switching unit for switching between TV broadcasting and cable broadcasting mode, a counter for counting the number of selection buttons input from the selection means, and a predetermined time for the signal input from the selection means. The cumulative timer, the TV / Cable broadcasting tuning memory unit for storing the channels of the TV broadcasting and the cable broadcasting tuned by the selection means, and the operation of the channel tuning mode from the selection means has been applied for a predetermined number of times. The mode switching unit to switch the mode of television broadcasting and cable broadcasting, and control the tuner Is characterized by control of the control means, the control means is configured to include a storage of a signal input from said selecting means, control data storage to store information received from the counters and timers.

That is, according to the present invention having the above-described configuration, the broadcasting mode of the television broadcasting or the cable broadcasting is automatically switched when the viewer selects the channel of the television broadcasting or the cable broadcasting a certain number of times for a predetermined time when the cable broadcasting is connected to the television. In order to improve the function of the television receiver it is possible to facilitate the viewer's convenience.

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

FIG. 2 is a block diagram of an apparatus for simultaneously setting channels of television / wired broadcasting according to the present invention. FIG. 2 is given the same reference numerals for the same elements as in FIG. 1, and detailed description thereof will be omitted.

The remote control unit 100, which is the selection means of FIG. 2, tunes a channel for a memorized broadcast with a setting button (not shown) separately configured for the viewer to automatically tune into a channel of television broadcasting and cable broadcasting. 110 receives an infrared signal transmitted from the remote control 100 and converts it into an electrical signal and outputs the electrical signal. The controller 120 controls the first half of the apparatus according to the code signal input from the receiver 110. will be.

In addition, the mode switching unit 130 is to switch the mode to the cable broadcasting or TV broadcasting under the control of the control unit 120, the counter 140 is to count the number of selection buttons input from the remote control 100. The timer 150 accumulates a predetermined time in preparation for the signal input from the remote controller 100, and the TV / Cable broadcasting tuning memory unit 170 selects the TV by selecting a selection button of the remote controller 100. Broadcasting and cable broadcasting channels are stored.

The control unit 120 determines whether the operation of the channel selection mode from the remote control 100 has been applied a predetermined number of times for a predetermined time to switch the mode of television broadcasting and cable broadcasting to the mode switching unit 130, the tuner (2) ), And a control data storage unit for storing a signal input from the remote controller 100 as a control signal of the controller 120 and storing information from the counter 14 and the timer 150. 160).

That is, when the viewer frequently presses a select button of the remote controller 100 to select a channel of a television broadcast or a cable broadcast received by the television receiver, the infrared signal of the remote controller 100 is transmitted to the receiver 110. The receiver 110 outputs information on the setting of the remote controller 100 to the controller 120 as an electrical signal. The controller 120 tunes the tuner 2 to tune the television broadcast and the cable broadcast by the channel order. At this time, the controller 120 counters the frequent selection of the input channel through the counter 140.

In addition, the timer 150 connected to the controller 120 accumulates a predetermined time from the first time of input from the remote controller 100. That is, the timer 150 integrates the electrical signal input from the remote controller 100 for a predetermined time, and the counter 140 counts an input signal of the remote controller 100. Therefore, when a certain number of times the remote controller 100 signal is input within a predetermined time, the control unit 120 controls the mode switching unit 130 to switch the television broadcasting to the cable broadcasting mode, the cable broadcasting to the television broadcasting mode. . The controller 120 determines that there is no broadcast preferred by the viewer and automatically switches from the current broadcast mode to another broadcast mode to increase the convenience of the viewer. Tuning the channel of the television broadcasting or the cable broadcasting by the control unit 120 sequentially tunes the channels preset in the tuning memory unit 170.

The control data storage unit 160 connected to the control unit 120 stores the information on the channel selection input from the remote controller 100 and information or data on the operation of the counter 140 and the timer 150. Input and output via the control signal of the control unit 120.

As such, when the viewer frequently tunes in a certain time while watching TV in one broadcasting mode, the controller 120 recognizes this and automatically switches the broadcasting mode so that the viewer does not switch the mode of the separate TV / wired broadcasting. It does not have to be a convenience.

This automatic switching is performed in the flowchart of broadcasting mode switching of television / wired broadcasting according to the present invention of FIG. 3, wherein the control unit 120 reproduces a broadcast signal of a normal television in a state where the television receiver is powered on. It is made (S201). In this case, the viewer presses a selection button (not shown) from the remote controller 100 to up or down the channel or directly tunes the channel (S202). In this case, the controller 120 receives the receiver 110 from the remote controller 100. In step S203, it is determined whether a channel is tuned or a channel is directly tuned a predetermined number of times during a predetermined time.

If it is determined in step S203 that a predetermined number of preset signals have been input within a predetermined time, the control unit 120 switches from the mode switching unit 130 to the television broadcasting mode, the cable broadcasting mode to the television broadcasting mode. Switching (S204).

In other words, while watching TV or cable broadcasting, the viewer automatically considers that there is no broadcasting channel preferred by the viewer when the channel is tuned a certain number of times for a certain period of time and automatically switches from the current broadcasting mode to another broadcasting mode. You do not have to switch modes.

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, according to the exemplary embodiment of the present invention, when the viewer selects a TV broadcast or a cable broadcast while watching TV, the broadcasting mode is automatically switched when the channel is tuned at a certain number of times during a predetermined time, and thus, without a separate selection button input. By automatically switching the mode of cable broadcasting, the convenience of the viewer is increased, and the function of the television is improved.

Claims (1)

A television receiver equipped with video / audio processing means for processing video and audio signals detected on the basis of a broadcast signal received by an antenna, comprising: selection means having a selection button for the viewer to tune into a channel; And a mode switching unit for switching a cable broadcasting mode, a counter for counting the number of selection buttons input from the selection means, a timer for integrating a predetermined time against a signal input from the selection means, and the selection means. A TV / wired broadcasting tuning memory unit for storing the channels of the TV broadcast and the cable broadcasting tuned by the selection of the channel, and determining whether the operation of the channel tuning mode has been applied a predetermined number of times for a predetermined time from the selection means. Control means for switching the modes of broadcasting and cable broadcasting, and controlling the tuner; The language choice storing the signal input from the means and the counter and timer-controlled to store the information from the data storing TV / wired broadcast broadcasting mode at the time of frequent channel selection, characterized in that configured to include a switching device.