KR100765763B1 - Broadcast receiving method and apparatus for providing broadcasting service by power level - Google Patents

Abstract

The present invention relates to a broadcast receiving apparatus and method for providing a broadcast service according to a power level. The present invention relates to a broadcast service mode setting unit and a broadcast receiving apparatus which preset a plurality of broadcast service modes performed according to a power level of a broadcast receiving apparatus. A power level detection unit for detecting a power level of the power level; an execution unit for executing a corresponding broadcast service mode among preset broadcast service modes based on the detected current power level; and whether the power level detected by the power level detection unit is changed; The controller may be configured to control an execution unit to convert the currently executed broadcast service mode according to the changed power level, thereby providing a broadcast service optimized at the power level of the current broadcast receiving apparatus.

Description

Broadcast receiving apparatus and method for providing a broadcast service according to the power level {broadcast receiving method and apparatus for providing broadcasting service by power level}

1 is a block diagram of a broadcast receiving apparatus providing a broadcast service according to a power level according to an embodiment of the present invention;

FIG. 2 is a block diagram illustrating the broadcast signal processing unit 110 of FIG. 1 in more detail.

3 is a flowchart illustrating a broadcast receiving method for providing a broadcast service according to a power level according to an embodiment of the present invention;

4A to 4D illustrate examples of providing a broadcast service according to a power level applied in FIG. 1 or 3.

The present invention relates to a broadcast receiving apparatus and method for providing a broadcast service according to a power level, and more particularly, to a power level in order to use a power source more efficiently in a digital multimedia broadcasting (DMB) receiving apparatus. Accordingly, the present invention relates to a broadcast receiving apparatus and method for allowing a broadcast service to operate differentially.

Recently, as digital audio equipment with excellent sound quality such as CD and DVD has been widely spread and popularized, the demand of listeners for digital broadcasts requiring high quality sound is increasing day by day, and thus the limitation of sound quality that existing FM broadcast can provide To overcome, Digital Audio Broadcasting (DAB) is being implemented in Europe, Canada, and the United States.

Digital audio broadcasting system uses technology that is completely different from current AM broadcasting and FM broadcasting to show not only high quality sound but also excellent reception on the go, and it can transmit digital data such as video and text at high speed. Have.

Recently, Digital Multimedia Broadcasting (DMB), which emphasizes various multimedia services including video rather than audio broadcasting, has been provided. Digital multimedia broadcasting is a digital multimedia broadcasting capable of providing audio services, data services, and video services having a CD level sound quality and providing excellent fixed and mobile reception quality.

The digital multimedia broadcasting receiver performs various broadcasting service operations such as video service, audio service, and data service, but uses a battery having a limited power capacity as a power source.

In order to use the limited power capacity more effectively, the conventional digital multimedia broadcasting receiver measures power of the remaining battery and immediately saves power by operating in a power saving mode when it is determined that the threshold value is less than the threshold. There is this. In other words, this method divides the current power state of the digital multimedia broadcasting receiver by a threshold value and operates in a power saving mode when it is lowered below the threshold value.

However, in the above scheme, since the broadcast service in digital multimedia broadcasting consumes different power for each of the video service, the audio service, and the data service, it is necessary to differentially operate the broadcast service according to the current power level.

The technical problem to be achieved by the present invention is to differentially set a broadcast service that can operate according to the power level in order to use the power source more efficiently in the broadcast receiving device, and according to the change in the power level of the broadcast receiving device The present invention provides a broadcast receiving apparatus and method for operating a broadcast service.

In order to solve the above technical problem, the broadcast reception device providing a broadcast service according to the power level of the present invention is configured to set a broadcast service mode in which a plurality of broadcast service modes are performed according to the power level of the broadcast reception device. part; A power level detector for detecting a power level of the broadcast reception device; An execution unit configured to execute a corresponding broadcast service mode among the preset broadcast service modes based on the detected current power level; And a controller configured to determine whether the power level detected by the power level detector is changed and to control the execution unit to convert the broadcast service mode being executed according to the changed power level.

Preferably, the plurality of broadcast service modes set in the setting unit may include some information among video information, audio information, and data information included in the broadcast signal received by the broadcast reception device according to the power level of the broadcast reception device. It is characterized in that the predetermined mode whether to provide a broadcast service in combination.

Preferably, the broadcast receiving device is a digital multimedia broadcasting (DMB) receiving device.

In addition, the broadcast receiving method for providing a broadcast service according to the power level of the present invention for solving the technical problem, (a) pre-set a plurality of broadcast service mode according to the power level of the broadcast receiving device; (b) detecting a power level of the broadcast reception device; (c) determining whether a broadcast service mode preset in step (a) is converted by determining a change in power level detected in step (b); And (d) executing the converted broadcast service mode when it is determined in step (c) that the broadcast service mode has been converted.

Preferably, the plurality of broadcast service modes are set according to the power level of the broadcast reception apparatus to determine what kind of information among video information, audio information, and data information included in the received broadcast signal is combined. It is characterized by the preset mode.

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

1 is a block diagram of a broadcast receiving apparatus providing a broadcast service according to a power level according to an embodiment of the present invention. Referring to FIG. 1, the broadcast receiving apparatus 100 providing a broadcast service according to a power level includes a broadcast signal processor 110, a controller 120, a power level detector 130, a broadcast service mode setting unit 140, It is configured to include the execution unit 150 and the display unit 160. Here, the broadcast receiving device 100 may be a digital multimedia broadcasting (DMB) receiving device as an example.

The broadcast signal processor 110 receives a broadcast signal through a broadcasting station base station, decodes a broadcast service signal included in the received broadcast signal, and outputs the same to the execution unit 150.

Typically, the broadcast service signal includes a video broadcast service element, an audio broadcast service element and a data broadcast service element. Furthermore, the broadcast service signal may include at least one of the video broadcast service element, the audio broadcast service element, and the data broadcast service element. More details about the broadcast signal processor 110 will be described with reference to FIG. 2 below.

The power level detector 130 measures the power remaining in the battery of the broadcast reception device 100, determines which power level corresponds to the power level among the preset power levels, and transmits the same to the controller 120.

Here, an example in which the power level detector 130 classifies power levels into five criteria will be described. That is, the power level classification of the broadcast reception device 100 classified by the power level detection unit 130 may be a first level at which the video broadcast service component, the audio broadcast service component, and the data broadcast service component may operate. And a second level at which the data broadcast service can operate, a third level at which the audio broadcast service element and the data broadcast service element can operate, a fourth level at which only the data broadcast service element can operate, and all broadcast service elements operate. The fifth level is impossible.

The power level classification of the power level detection unit 130 described above is an example, and various changes may be made according to each application example.

The broadcast service mode setting unit 140 presets and stores a broadcast service mode to be provided according to the power level of the broadcast reception device 100. In the above example in which the power levels are based on five standards, the broadcast service mode set by the broadcast service mode setting unit 140 is a video broadcast service element and an audio broadcast service when the power level is the first level. The first broadcast service mode in which both the element and the data broadcast service element can operate, the second broadcast service mode in which the video broadcast service element and the data broadcast service can operate when the power level is the second level, the power level A third broadcast service mode that enables the audio broadcast service element and the data broadcast service element to operate at the third level, and a fourth broadcast service to operate only the data broadcast service element when the power level is the fourth level Fifth to disable all broadcast service elements when the mode and power level is a fifth level; It is made in the broadcast service mode.

The classification of the broadcast service mode of the broadcast service mode setting unit 140 described above is just an example and may be variously changed according to each application example.

The broadcast service mode setting unit 140 receives a power level signal of the current broadcast receiving apparatus 100 from the execution unit 150 and outputs a corresponding broadcast service mode signal to the execution unit 150. .

The execution unit 150 receives the current power level signal from the control unit 120 and loads the broadcast service mode according to the received power level from the broadcast service mode setting unit 140 so that the corresponding broadcast service mode is executed.

In addition, when the execution unit 150 receives the power level conversion signal from the control unit 120, the broadcast service mode according to the converted power level is loaded from the broadcast service mode setting unit 140 to determine the currently executed broadcast service mode. Convert it to run.

The display unit 160 displays the broadcast service mode so that the user can know whether the broadcast service mode is currently operating in accordance with the power level of the broadcast reception device 100. Specifically, for example, in the above example, the power level corresponding to the predetermined position of the liquid crystal display window may be displayed through a bar graph or the like. Herein, in connection with the method of displaying the power level on the display unit 160, various forms such as a method of using a message, a method of adjusting the amount of light emitted from the LED, or a color of emitted light may be changed.

The display unit 160 is preferably implemented as a conventional liquid crystal display (LCD), but is not limited thereto, and may be implemented as a plasma display panel (PDP).

The controller 120 receives the power level signal from the power level detector 130 and outputs the power level signal to the execution unit 150.

The controller 120 compares the power level signal input from the power level detector 130 to determine whether the power level signal is changed, and generates a power level conversion signal to the execution unit 150 when it is determined that the power level signal is changed. Output

In addition, the control unit 120 also controls the overall operation of the broadcast reception device 100 by providing a user interface function such as selecting a function of a user and decoding high-speed information channel information.

FIG. 2 is a block diagram illustrating the broadcast signal processor 110 of FIG. 1 in more detail. Referring to FIG. 2, the broadcast signal processor 110 includes an antenna 111, a tuner 112, an A / D converter 113, a demodulator 114, a deinterleaver 115, and a decoder 116. It is configured to include. The decoder 116 includes a video decoder 1161, an audio decoder 1162, and a data decoder 1163.

The tuner 112 tunes only an RF signal in which a broadcast service that a user wants to receive exists among a plurality of RF signals received by the antenna 111 and converts the signal into an intermediate frequency (IF) signal and then converts it into an A / D converter. Output to (Analog / Digital Converter: ADC) 113.

The tuner 112 selects a frequency band of an ensemble modulated signal in which a broadcast service desired by a user is multiplexed.

The A / D converter 113 digitizes the analog IF signal tuned by the tuner 112 and outputs it to the demodulator 114.

The demodulator 114 performs FFT (Fast Fourier Transform) and differential demodulation on the digital signal output from the A / D converter 113 and outputs the de-interleaver 115.

The deinterleaver 115 performs deinterleaving on the demodulated signal in the frequency domain, and then decodes a fast information channel (FIC) signal, which is a control channel, and a main service channel (MSC) signal, which is a data channel. Isolate.

Here, after the main service channel signal is deinterleaved in the time domain again, the video service element is output to the video decoder 1161 and decoded, and the audio service element is output to the audio decoder 1162 and decoded, and the data service. The element is output to the data decoder 1163 and decoded. At the same time, the high speed information channel signal is output to the control unit 120 and decoded.

In FIG. 2, the antenna 111, the tuner 112, the A / D converter 113, the demodulator 114, the deinterleaver 115, and the decoder 116 are related to the broadcast signal processor 110. Although described as an example, but not limited to this can be configured in a variety of ways.

3 is a flowchart illustrating a broadcast receiving method for providing a broadcast service according to a power level according to an embodiment of the present invention.

First, a plurality of broadcast service modes are preset according to the power level of the broadcast reception device (reference numeral 100 of FIG. 1) (S300). More specifically, the power level classification of the broadcast receiving apparatus (reference numeral 100 of FIG. 1) may be classified into a first level, a video broadcasting service component, and a data broadcasting in which a video broadcasting service component, an audio broadcasting service component, and a data broadcasting service component may operate. The second level at which the service can operate, the third level at which the audio broadcast service element and the data broadcast service element can operate, the fourth level at which only the data broadcast service element can operate, and all the broadcast service elements are unable to operate. The fifth level.

 In addition, in this example, in which the power levels are based on five standards, the broadcast service mode preset by the broadcast reception device includes the video broadcast service element, the audio broadcast service element, and the data broadcast when the power level is the first level. A first broadcast service mode in which all of the service elements can operate; a second broadcast service mode in which the video broadcast service element and data broadcast service can operate when the power level is a second level; and the power level is a third level. The third broadcast service mode for enabling the audio broadcast service component and the data broadcast service component to operate, and the fourth broadcast service mode and power level for enabling only the data broadcast service component to operate when the power level is the fourth level. The fifth broadcast service module which makes all broadcast service elements inoperable at this fifth level. It consists of.

Next, the power level of the broadcast reception device is detected (S310). In this case, the power level of the broadcast reception device is measured by measuring the power remaining in the battery and detecting the power level corresponding to the power level among the preset power levels.

Next, a corresponding broadcast service mode is executed among preset broadcast service modes according to the currently detected power level (S320).

Next, it is determined whether the preset broadcast service mode is converted by changing the power level (S330). As a result of the determination in step S330, if it is determined that the broadcast service mode should be changed by the change in the power level, the flow proceeds to step S340. On the other hand, if it is determined in step S330 that the power level does not change and the broadcast service mode does not need to be converted, the process returns to step S320.

In step S340, the converted broadcast service mode is executed.

Next, it is determined whether or not the power level of the broadcast reception device is equal to or less than a predetermined reference value (S350). Here, whether or not the predetermined reference value or less is for determining whether the power of the broadcast reception device is smaller than the minimum operating power level. That is, in the example described above, it is determined whether the power level corresponds to the fifth level. If it is determined in step S350 that the power level of the broadcast reception device is less than or equal to the predetermined reference value, the flow proceeds to step S360 to cut off the power of the broadcast reception device. On the other hand, when it is determined in step S350 that the power level of the broadcast reception device is not less than or equal to the predetermined reference value, the process returns to step S330.

Parts not described in FIG. 3 will be referred to FIGS. 1 and 2.

4A to 4D illustrate examples of providing a broadcast service according to a power level applied in FIG. 1 or 3. 4A to 4D, the power levels shown in FIGS. 1 and 3 correspond to the first to fourth criteria when divided into five criteria.

FIG. 4A illustrates that the power level corresponds to the first level. In this state, the video broadcast service element, the audio broadcast service element, and the data broadcast service element may operate in the first broadcast service mode.

4B is a screen in which the power level corresponds to the second level, and in this state, the second broadcast service mode in which the video broadcast service element and the data broadcast service element can operate is performed.

4C shows a power level corresponding to a third level. In this state, the audio broadcast service element and the data broadcast service element may operate in the third broadcast service mode.

4D illustrates that the power level corresponds to the fourth level. In this state, the fourth broadcast service mode in which only the data broadcast service element is operated may be executed.

4A to 4D show that when the power levels are divided into five standards, the power levels are classified into first to fourth levels. However, the power levels can be classified not only into five criteria but also by more diverse criteria.

The invention can also be embodied as computer readable code on a computer readable recording medium. Computer-readable recording media include all types of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD_ROM, magnetic tape, floppy disks, and optical data storage, and may also include those implemented in the form of carrier waves (e.g., transmission over the Internet). . The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

As described above, optimal embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the present invention relates to a broadcast receiving apparatus and method for providing a broadcast service according to a power level, and to classify various broadcast services differentially according to power consumption, according to the power level of a current broadcast receiving apparatus. The broadcast service optimized in the current power state can be provided by operating the corresponding broadcast service among various broadcast services. In addition, by more efficiently using the battery of the broadcast reception device, the usable time of the broadcast reception device can be increased.

Claims (5)

A broadcast service mode setting unit which presets a plurality of broadcast service modes for different broadcast service elements to be executed according to a power level of the broadcast reception device; A power level detector for detecting a power level of the broadcast reception device; An execution unit configured to execute a corresponding broadcast service mode among the preset broadcast service modes based on the detected current power level; And And a controller configured to determine whether a power level detected by the power level detector is changed and to control the execution unit to convert the broadcast service mode being executed according to the changed power level. Broadcast receiving device providing a service. The method of claim 1, The plurality of broadcast service modes set in the setting unit include: According to the power level of the broadcast receiving device is a mode of pre-set whether to provide a broadcast service by combining any of the video information, audio information and data information included in the broadcast signal received by the broadcast receiving device; A broadcast receiving device providing a broadcast service according to a power level. The method of claim 1, The broadcast receiving device provides a broadcast service according to a power level, characterized in that the digital multimedia broadcasting (DMB) receiving device. (a) presetting a plurality of broadcast service modes for different broadcast service elements to be executed according to a power level of the broadcast reception device; (b) detecting a power level of the broadcast reception device; (c) determining whether a broadcast service mode preset in step (a) is converted by determining a change in power level detected in step (b); And (d) if it is determined in step (c) that the broadcast service mode has been converted, executing the converted broadcast service mode; and a broadcast receiving method for providing a broadcast service according to a power level comprising a; . The method of claim 4, wherein The plurality of broadcast service modes set as described above The broadcast mode is a preset mode in which a combination of video information, audio information, and data information included in the received broadcast signal is performed according to the power level of the broadcast reception device. Broadcast receiving method providing a service.

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