KR100818247B1 - Digital broadcast receiving device and channel selection method - Google Patents

Abstract

A digital broadcasting receiving device and a channel selecting method thereof are provided to enable a user to select a digital broadcasting channel easily by using panel keys installed in the digital broadcasting receiving device even in case that there is no remote controller, thereby increasing convenience of a user. A channel selecting method comprises the following steps of: confirming whether plural panel keys of panel keys installed in a broadcasting receiving device are simultaneously selected(S410); and if so, selecting a digital broadcasting channel where at least one number of channel numbers of a current digital broadcasting channel is changed(S420). The channel number is continuously changed according to a frequency of simultaneous selection.

Description

Digital broadcast receiving device and channel selection method {Digital broadcast receiving device and channel selection method}

1 is a block diagram showing the configuration of a digital broadcast receiving apparatus according to an embodiment of the present invention;

2A to 2D are views illustrating channel switching by the digital broadcast receiving apparatus shown in FIG. 1;

3 is a view for explaining the operation of the panel key included in the digital broadcast receiving device shown in FIG. 1;

4 is a flowchart illustrating a channel tuning method according to an embodiment of the present invention;

5 is a flowchart illustrating a channel tuning method according to an embodiment of the present invention in more detail.

Explanation of symbols on the main parts of the drawing

100: digital broadcast receiving device 110: input unit

120: control unit 130: station selection unit

The present invention relates to a digital broadcast receiver and a channel tuning method thereof. More particularly, the present invention relates to a digital broadcast receiver and a channel for facilitating a user's digital broadcast channel tuning even without a remote controller using a plurality of panel keys. It is about a station selection method.

In today's twenty-first century, the color TV market has reached saturation and the TV receiver replacement cycle of 20 years has created the necessity of a new broadcast receiver market. There is a need for a broadcast receiving apparatus having another format capable of storing and reproducing external video signals and exchanging various information through a transmission medium such as a cable, away from the conventional color TV having a simple monitor function.

In response to the changing demands of the times, in order to satisfy various needs of viewers and to form a new TV market, digital TVs with multimedia functions have been introduced to overcome the limitations of existing analog technologies.

On the other hand, multi-channel television broadcasts, such as digital TV broadcasts, provide programs in an unpredictably large number of channels, whereas previous analog TV broadcasts have provided programs on fewer than ten channels. In particular, in the case of a broadcast receiving device that processes analog / digital broadcast signals using the National Television Systems Committee (NTSC) / Advanced Television Systems Committee (ATSC) method adopted as a standard in the Americas, a digital broadcasting channel is provided to provide a large number of channels. Is assigned a channel number in the form of "-" between the main channel number and the sub channel number. Therefore, even in the case of digital broadcasting channels having the same main channel number, many digital broadcasting channels exist according to the sub channel numbers, so it is inconvenient to select a channel using the channel up / down keys provided on the remote controller or the key panel. There is a ham. On the other hand, if you have a remote control, you can switch directly to the desired channel when using the numeric keys provided on the remote control, but if you do not have a remote control, channel adjustment is required only by the channel up / down keys on the key panel. There was this.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a digital broadcast reception device that makes it easy for a user to tune to a digital broadcast channel even when there is no remote control using a panel key provided in the digital broadcast reception device. The present invention provides a channel tuning method.

The channel tuning method according to an embodiment of the present invention for achieving the above object provides a function for changing the main / sub channel number using a plurality of panel keys provided in the digital broadcast receiving apparatus.

To this end, the present digital broadcasting channel selecting method includes (a) checking whether a plurality of panel keys are simultaneously selected among the panel keys provided in the broadcast receiving apparatus, and (b) when the plurality of panel keys are simultaneously selected. And tuning the digital broadcast channel whose at least one of the channel numbers of the current digital broadcast channel has been changed.

Preferably, in step (b), the digital broadcast channel of the current digital broadcast channel is changed and the sub channel number is the same, or the digital channel is changed and the sub channel number is the same. Characterized in that.

More preferably, in the step (b), when a predetermined first key and a channel control key of the plurality of panel keys are simultaneously selected, the main channel number is changed and the sub channel number is tuned to the same digital broadcast channel. When a predetermined second key and a channel control key are selected simultaneously among the plurality of panel keys, the digital broadcasting channel having the same main channel number and the sub channel number may be tuned.

On the other hand, the digital broadcast receiver according to an embodiment of the present invention, the input unit having a plurality of panel keys, the channel selection unit for tuning the channel according to the selection of the panel key, and at least two panel keys of the plurality of panel keys And simultaneously controlling the tuner to tune to the digital broadcast channel whose at least one of the channel numbers of the current digital broadcast channel has been changed.

Preferably, the controller controls the channel selection unit to tune the digital broadcast channel whose main channel number is changed and the sub channel number is the same, or tune the digital broadcast channel whose main channel number is the same and the sub channel number is changed. It is done.

More preferably, when the predetermined first key and the channel adjustment key of the plurality of panel keys are simultaneously selected, the main channel number is changed and the sub channel number is tuned to the same digital broadcast channel. When a predetermined second key and a channel control key of the panel keys are simultaneously selected, the channel selector may be controlled to tune to a digital broadcast channel having the same main channel number and a changed subchannel number.

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

1 is a block diagram illustrating a configuration of a digital broadcast receiving apparatus according to an embodiment of the present invention. According to FIG. 1, the digital broadcast receiving apparatus 100 includes an input unit 110, a controller 120, and a tuner 130.

The digital broadcast reception device 100 allows a user to easily adjust a digital broadcast channel using a panel key provided in the digital broadcast reception device 100 even without a TV remote control.

The input unit 110 provides an interface between the broadcast receiving device 100 and the user and includes a plurality of panel keys. The plurality of panel keys may include a menu key, an info key, a channel up / down key, and the like.

The tuner 130 tunes the digital broadcast channel according to the selection of the panel key input through the inputter 110.

If at least two panel keys of the plurality of panel keys included in the input unit 110 are selected at the same time, the controller 120 selects a digital broadcasting channel to tune to a digital broadcast channel whose at least one of the channel numbers of the current digital broadcast channel has been changed. 130) to control.

For example, according to the ATSC method, the digital broadcast channel number is displayed as "main channel number-sub channel number", and the control unit 120 is a combination of panel keys selected from a plurality of panel keys provided in the input unit 110. The channel selection unit 130 may control the channel selection unit 130 so that the main channel number is changed and the sub channel number is tuned to the same digital broadcast channel, or the main channel number is the same and the sub channel number is tuned to the changed digital broadcast channel.

Specifically, the controller 120 changes the main channel number when the predetermined first key and the channel adjustment key are simultaneously selected among the plurality of panel keys included in the input unit 110, and the sub channel number is the same as the digital broadcast channel. The tuner 130 may be controlled to tune, and when a predetermined second key and a channel control key are simultaneously selected among a plurality of panel keys included in the input unit 110, the main channel number is the same and the sub channel number is changed. The tuner 130 may be controlled to tune to the digital broadcast channel. Here, the simultaneous selection does not necessarily have to be selected at the same physical time, but allows an error range in which the user can simultaneously press two or more keys. In addition, the predetermined first key and the second key may be any one of the MENU key and the INFO key, and the channel adjusting key may be any one of the CH UP / DOWN keys.

2A to 2D are diagrams illustrating channel switching by the digital broadcast receiver shown in FIG. 1.

2A and 2B illustrate a process in which a main channel number of a current digital broadcasting channel is changed according to a predetermined combination of a plurality of panel keys included in the digital broadcasting receiver 100, and a subchannel number is tuned to the same digital broadcasting channel. Figure is an illustration.

FIG. 2A shows a case where the main channel number of the current digital broadcast channel 9-1 is channeled up, and the sub channel numbers are tuned in sequence to the same digital broadcast channel 10-1, 11-1. In this case, the screen may be directly switched from the 9-1 channel to the 10-1 channel and the 10-1 channel to the 11-1 channel. In addition, after the channel number of 9-1, 10-1, 11-1, etc. is displayed on the OSD and a predetermined time has elapsed, that is, the channel switching by the combination of the key panels is finished, the broadcast signal of the tuned digital broadcasting channel Can be displayed to reduce the time required to switch screens.

2B shows a case where the main channel number of the current digital broadcast channel 9-1 is channeled down, and the sub channel numbers are tuned in sequence to the same digital broadcast channels 8-1 and 7-1.

2C and 2D illustrate a process of selecting a digital broadcast channel in which the main channel number of the current digital broadcast channel is the same and whose subchannel number is changed according to a predetermined combination of a plurality of panel keys included in the digital broadcast reception apparatus 100. Figure is an illustration.

FIG. 2C shows a case in which the main channel numbers of the current digital broadcast channels 9-1 are the same, and the sub channel numbers are tuned in sequence with the channeled up digital broadcast channels 9-2 and 9-3. In this case, the screen may be directly switched from the 9-1 channel to the 9-2 channel and the 9-3 channel to the 11-1 channel. In addition, channel numbers such as 9-1, 9-2, and 9-3 are displayed on the OSD, and after a predetermined time, the broadcast signal of the tuned digital broadcasting channel is displayed to reduce the time required for screen switching. have.

FIG. 2D shows a case where the main channel numbers of the current digital broadcast channels 9-1 are the same, and the sub channel numbers are tuned in sequence to the channel-down digital broadcast channels 9-0.

In addition, in the present embodiment, in the case of an America-type broadcast receiving device (broadcasting device processing an analog / digital broadcast signal by NTSC (National Television Systems Committee) / ATSC (Advanced Television Systems Committee) method adopted as a standard in the Americas) As described above, the structure of the European-style broadcast receiver (PAL (Phase Alternate Line) / DVB-T (Digital Video Broadcasting-Terrestrial) method that processes analog / digital broadcast signals) is adopted as a standard in Europe. This may also apply.

FIG. 3 is a view for explaining an operation of a panel key included in the digital broadcast receiving apparatus shown in FIG. 1. According to FIG. 3, the input unit 110 included in the digital broadcasting receiver 100 includes a plurality of panel keys such as a MENU key 310, a CH UP / DOWN key 320 and 330, an INFO key 340, and the like. do.

For example, when the MENU key 310 and the CH UP key 320 are simultaneously selected, as shown in FIG. 2A, the main channel number of the current digital broadcast channel is channeled up, and the same digital channel is used. When the MENU key 310 and the CH DOWN key 330 are selected at the same time, as shown in FIG. 2B, the main channel number is channeled down and the same digital channel can be tuned to the sub channel number. .

In addition, when the INPO key 340 and the CH UP key 320 are selected at the same time, as shown in Figure 2c, the main channel number is the same and the sub-channel number can be tuned to the channel-up digital broadcast channel, INFO When the key 340 and the CH DOWN key 330 are selected at the same time, as shown in FIG. 2D, a digital broadcast channel in which the main channel number is the same and the sub channel number is channeled down may be selected.

4 is a flowchart illustrating a channel tuning method of a digital broadcast receiving apparatus according to an embodiment of the present invention.

Referring to FIG. 4, it is checked whether a plurality of panel keys are simultaneously selected among panel keys provided in the digital broadcast receiving apparatus (S410).

When a plurality of panel keys are simultaneously selected (S410: Y), the digital broadcast channel whose at least one number of the channel numbers of the current digital broadcast channel is changed is tuned (S420). If a plurality of panel keys are not simultaneously selected (S410: N), the digital broadcast receiver operates according to the original key function. The plurality of panel keys may include a MENU key, a CH UP / DOWN key, an INFO key, and the like.

5 is a flowchart illustrating a channel tuning method of a digital broadcast receiver according to an embodiment of the present invention in more detail.

Referring to FIG. 5, it is checked whether a plurality of panel keys are simultaneously selected among panel keys provided in the digital broadcasting reception apparatus (S510).

When a plurality of panel keys are simultaneously selected (S510: Y), it is checked whether a predetermined first key and a channel adjustment key are simultaneously selected (S520). When the predetermined first key and the channel adjustment key are simultaneously selected (S520: Y), the main channel number is changed and the subchannel number is tuned to the same digital broadcast channel (S530).

If the predetermined first key and the channel adjustment key are not simultaneously selected (S520: N), it is checked whether the predetermined second key and the channel adjustment key are simultaneously selected (S540). When the predetermined second key and the channel adjustment key are simultaneously selected (S540: Y), the digital broadcast channel whose main channel number is the same and whose subchannel number is changed is tuned (S550). If the second predetermined key and the channel adjustment key are not simultaneously selected (S540: N), the current channel is maintained. The predetermined first key and the second key may be any one of a MENU key and an INFO key, and the channel adjusting key may be a CH UP / DOWN key. For example, when the MENU key and the CH UP / DOWN key are selected at the same time, the main channel number is changed and the sub channel number can be tuned to the same digital broadcasting channel, and the INPO key and the CH UP / DOWN key are simultaneously selected. In this case, the digital broadcast channel whose main channel number is the same and whose sub channel number has been changed can be tuned.

Accordingly, it is possible to easily tune a user's digital broadcast channel even when there is no remote controller by using a plurality of panel keys provided in the digital broadcast receiver.

As described above, according to the present invention, the digital broadcast channel can be easily tuned by using the panel key provided in the digital broadcast receiver even without the remote controller. Accordingly, the user's convenience is increased.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the above-described specific embodiment, the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

Claims (6)

In the channel tuning method of the digital broadcast receiver, (a) checking whether a plurality of panel keys are simultaneously selected among panel keys provided in the broadcast receiving device; And, (b) when the plurality of panel keys are simultaneously selected, selecting a digital broadcast channel whose at least one number of the channel numbers of the current digital broadcast channel is changed;  And the channel number is continuously changed according to the number of simultaneous selections. The method of claim 1, In step (b), And tuning a digital broadcast channel whose main channel number of the current digital broadcast channel is changed and whose subchannel number is the same, or tuning a digital broadcast channel whose main channel number is the same and whose subchannel number is changed. The method according to claim 1 or 2, In step (b), If a predetermined first key and a channel control key of the plurality of panel keys are simultaneously selected, the main channel number is changed and the sub channel number is tuned to the same digital broadcast channel. And when a predetermined second key and a channel control key are simultaneously selected among the plurality of panel keys, selecting a digital broadcast channel having the same main channel number and changing the sub channel number. An input unit having a plurality of panel keys; Tuning unit for tuning the channel according to the panel key selection; And, And a controller configured to control the tuner to tune to a digital broadcast channel in which at least one of the channel numbers of the current digital broadcast channel is changed when at least two panel keys are simultaneously selected from the plurality of panel keys. And the channel number is continuously changed according to the number of simultaneous selections. The method of claim 4, wherein The control unit, And controlling the channel selection unit to tune the digital broadcasting channel whose main channel number is changed and the sub channel number is the same, or that tunes the digital broadcasting channel whose main channel number is the same and whose sub channel number is the same. The method according to claim 4 or 5, The control unit, If a predetermined first key and a channel control key of the plurality of panel keys are simultaneously selected, the main channel number is changed and the sub channel number is tuned to the same digital broadcast channel. And when the preset second key and the channel adjustment key are selected simultaneously among the plurality of panel keys, the channel selection unit controls the channel selection unit to tune to a digital broadcast channel having the same main channel number and a changed subchannel number. .

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