KR100790075B1 - Method for displaying antenna-ba in digital broadcasting reception device - Google Patents

Abstract

The present invention provides a method for displaying an antenna bar of a digital broadcasting reception apparatus, the method comprising: receiving a digital broadcast signal, analyzing the received digital broadcast signal by a predetermined time unit, and detecting reception state information; Converting the status information into decibel values (dBm), decibeling the converted decibel values, determining the number of antenna bars to be displayed on the display unit screen according to the summed up result, and the determined number of antenna bars. It characterized in that it comprises a process of displaying on the screen. Accordingly, the present invention displays the antenna bar for the digital broadcast reception signal in consideration of the interference phenomenon and the bit error rate according to the surrounding environment of the digital broadcast reception device, so that the reception state by the antenna bar can be displayed more accurately, and users can more accurately grasp this. . In addition, the present invention can reduce the shaking of the antenna bar by updating and displaying the antenna bar every predetermined time (for example, 1.2 seconds).

Digital broadcast receiver, antenna bar (ANTENNA BA)

Description

How to display the antenna bar of a digital broadcasting receiver {{METHOD FOR DISPLAYING ANTENNA-BA IN DIGITAL BROADCASTING RECEPTION DEVICE}

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

2 is a flowchart illustrating a method for displaying an antenna bar by a digital broadcasting receiver according to an exemplary embodiment of the present invention.

3 is a diagram illustrating an example of a reference table for determining the number of antenna bars to be displayed by an antenna bar display method according to an exemplary embodiment of the present invention.

The present invention relates to a method for displaying an antenna bar of a digital broadcasting receiver, and more particularly, to a method for displaying an antenna bar in consideration of a received signal strength indicator (RSSI) of a digital broadcasting receiver and the surroundings of the digital broadcasting receiver. It is about.

In general, digital broadcasting refers to a broadcasting service that provides a user with high quality, high sound quality, and higher service in place of a conventional analog broadcasting, and is classified into satellite digital broadcasting and terrestrial digital broadcasting.

Satellite digital broadcasting is mainly intended for mobile services, and is a broadcast capable of watching multi-channel multimedia broadcasting anytime, anywhere through a portable receiver (mobile phone, personal digital assistant) or a vehicle receiver.

Conventional digital broadcast receivers (including mobile communication terminals, vehicle receivers, home receivers, and the like, which can be mounted on a portable terminal) include an antenna at a predetermined position of a display unit to provide a user with a reception state of a received digital broadcast signal in real time. Display the bar. That is, the digital broadcasting reception apparatus displays the reception state of the received signal by varying the number of antenna bars. In general, the greater the number of antenna bars, the better the reception state and the less the number of antenna bars, the poor reception state. Indicates.

An antenna bar display method of the conventional digital broadcasting receiver as described above is as follows.

The digital broadcast receiver receives a digital broadcast signal transmitted from the outside, such as a digital broadcast center, and detects a received field strength (RSSI).

Subsequently, the digital broadcasting receiver analyzes the received field strength (RSSI) to determine the number of antenna bars to be displayed on the display unit, and displays the determined number of antenna bars.

That is, the conventional digital broadcasting receiver determines the number of antenna bars based only on the received electric field strength without considering the surrounding conditions.

Therefore, even if the surrounding environment of the digital broadcasting receiver has a lot of noise and the bit error rate (BER) is high, the number of antenna bars is displayed when the surrounding is a strong electric field, and the surrounding environment of the digital broadcasting receiver has less noise and bit Even if the error rate is low, the number of antenna bars is small when the surroundings are weak electric fields.

For this reason, conventionally, even if the periphery of the digital broadcasting receiver is a strong electric field, if there is a lot of interference in the periphery, the actual reception state is not good, but the antenna bar is displayed a lot so that the reception state is good, or vice versa. Often cases have occurred.

Accordingly, an object of the present invention is to provide a method for displaying an antenna bar in consideration of the surrounding environment of a digital broadcast receiving apparatus.

Another object of the present invention is to provide a method for allowing a user to more accurately grasp a reception state of a digital broadcast signal received by a digital broadcast reception device.

In order to achieve the above object, the present invention provides a method for displaying an antenna bar of a digital broadcast receiving apparatus, the method including receiving a digital broadcast signal and analyzing the received digital broadcast signal by a predetermined time unit to detect reception state information. Converting the detected reception state information into decibel values (dBm), determining the number of antenna bars to be displayed on a display unit screen according to the sum of the converted decibel values, and And displaying the determined number of antenna bars on the display screen.

According to another aspect of the present invention, there is provided a digital broadcast receiving apparatus, comprising: a digital broadcast receiving unit for receiving and outputting a digital broadcast signal, analyzing the received digital broadcast signal by a predetermined time unit, and outputting reception state information; Requesting the broadcasting receiver to output the reception status information, converting the reception status information output from the digital broadcasting receiver into decibel values (dBm), and adding the received status information, respectively, and an antenna indicating a reception status of the digital broadcasting signal according to the sum result; And a display unit for determining the number of bars and a display unit for displaying the number of antenna bars determined by the control unit.

Preferably, the digital broadcast receiving apparatus further includes a memory storing a reference table for determining the number of antenna bars to be displayed on the display unit by the controller.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

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

The illustrated digital broadcast receiver 100 includes a digital broadcast receiver 110, a user interface 120, a memory 130, a controller 140, a display 150, and an audio processor 160.

The digital broadcast receiver 110 receives and demodulates the digital broadcast signal transmitted from the digital broadcast center 200 and outputs the demodulated signal to the controller 140.

In addition, the digital broadcast receiver 110 receives the reception state information of the digital broadcast signal received from the controller 140, that is, the received field strength (RSSI), the signal-to-noise ratio (SNR) of the interference signal with respect to the input signal, and When there is a request for outputting a loss ratio (ie, an error bit rate BER) for the input signal, the receiver 140 detects and transmits the reception state information of the received digital broadcast signal to the controller 140. At this time, the controller 140 preferably requests the output of the reception status information in predetermined time units (for example, 1.2 seconds). This is to reduce the shaking of the antenna bar by updating and displaying the antenna bar every predetermined time.

The user interface unit 120 receives a user manipulation signal such as a key input or a voice input and transmits the same to the controller 140.

The memory 130 stores various kinds of information necessary for controlling the operation of the digital broadcast receiving apparatus 100 according to the embodiment of the present invention. In addition, the memory 130 may store a reference table for determining the number of antenna bars to be displayed on the display unit 150 by the controller 140 according to an exemplary embodiment of the present invention.

The controller 140 controls the overall operation of the digital broadcast reception device 100 according to the embodiment of the present invention. In addition, the controller 140 requests the digital broadcast receiver 110 for reception state information on the digital broadcast signal received by the digital broadcast receiver 110 at a predetermined time (for example, 1.2 seconds).

When the reception state information is transmitted from the digital broadcasting receiver 110 in response to the request, the controller 140 determines the number of antenna bars to be displayed on the display unit 150 and displays the determined number of antenna bars by the display unit 150. Mark on. At this time, the control unit 140 converts the reception state information into decibel values (dBm) and sums the values, and compares the sum with the values of the reference table stored in the memory 130 to determine the number of antenna bars. Will be decided.

The display unit 150 outputs various display data generated by the digital broadcast receiving apparatus 100 under the control of the controller 140, and displays an operation state and external input items of the digital broadcast receiving apparatus 100. In addition, the display unit 150 displays the number of antenna bars determined by the controller 140.

The display unit 150 may include a liquid crystal display (LCD) or the like capable of sufficiently supporting the resolution of the digital broadcast signal received by the digital broadcast receiver 110. In this case, when the LCD is implemented in a touch screen manner, the display unit 150 may operate as an input unit.

The audio processor 160 modulates an electric signal input from a microphone and converts the electric signal into voice data. The audio processor 160 demodulates the digital broadcast signal received by the digital broadcast receiver 110 into an electric signal and outputs it to a speaker. In addition, the audio processor 160 may include a codec for converting and playing a digital audio signal received by the digital broadcast receiver 110 into an analog signal or converting an analog audio signal generated from a microphone into a digital audio signal. desirable. The codec includes a data codec for processing packet data and an audio codec for processing an audio signal such as voice, and may be included in the controller 140.

2 is a flowchart illustrating a method for displaying an antenna bar of a digital broadcasting receiver according to an embodiment of the present invention.

1 and 2, the controller 140 receives a predetermined digital broadcast signal according to a user's request through the digital broadcast receiver 110 (S110).

The digital broadcast receiver 110 analyzes the received digital broadcast signal when a request for output of the reception state information is received by the controller 140 to receive the reception state information, that is, the received field strength (RSSI) and the intensity ratio of the interference signal with respect to the input signal ( A signal to noise ratio (SNR) and a bit error rate (BER) for the input signal are detected and transmitted to the controller 140 (S120).

The controller 140 converts the detected received field strength RSSI, the strength ratio SNR of the interference signal to the input signal, and the loss ratio BEF to the input signal into decibels (dBm), respectively (S130). In this case, when the received electric field strength is converted into decibels or less, the weakest electric field means the weakest electric field, and when the value converted into the decibels is more than -40 dBm, it means the strong electric field.

       In addition, the control unit 140 is OdBm, 10% if the noise ratio of the intensity ratio (SNR) of the interference signal to the input signal (that is, the digital broadcast signal) and the error ratio of the loss ratio (BER) to the input signal are 0%, respectively. If it is -10dBm, 20% is -20dBm, 30% is -30dBm, 40% is -40dBm, and 50% is -50dBm.

On the other hand, the error rate of the BER value is, for example, 1% if one of the 10,000 data of the BER is an error, 10% if 10 out of 10,000 data is an error, 20 data of 10,000 data If is an error, it can be calculated as 20%.

The controller 140 determines the number of antenna bars by summing the respective converted values (S140). At this time, the controller 140 determines the number of antenna bars by referring to a predetermined reference table stored in the memory 130.

To this end, the memory 130 sums the received field strength (RSSI) of the digital broadcasting receiver 100, the decibel values of the interference ratio for the input signal (SNR) and the loss ratio (BER) for the input signal. According to the result, a predetermined reference table including information on the number of preset antenna bars is stored.

An example of such a reference table is shown in FIG. 3 below.

On the other hand, the control unit 140 does not simply sum each of the converted values, but rather weights the decibel conversion value of the received electric field strength, for example, by 90%, and then inputs the decibel conversion value of the interference signal ratio with respect to the input signal. The number of antenna bars may be determined by compensating the decibel conversion value of the received electric field strength by weighting the decibel conversion value of the signal loss ratio by 5%. In this case, it is obvious that the reference table shown in FIG. 3 may be changed.

3 is a diagram illustrating an example of a reference table for determining the number of antenna bars to be displayed by the antenna bar display method according to an exemplary embodiment of the present invention.

Referring to FIG. 3, decibel values according to the signal-to-noise ratio (SNR) and the bit error rate (BER), as well as the field strength (RSSI) of the digital broadcast receiver 100 as a condition for determining the number of antenna bars. It can also be seen that.

In FIG. 3, the decibel values of the reception state information, that is, the received field strength (RSSI), the decibel values of the interference ratio for the input signal (SNR) and the loss ratio (BER) for the input signal are summed. The total number of antenna bars is divided into six.

That is, if the sum of the decibel values of the reception state information is less than -90 dBm, the number of antenna bars is 0; , Two antenna bars, -70 dBm or more and less than -60 dBm, three antenna bars; -60 dBm or more and less than -50 dBm, four antenna bars; -50 dBm or more and less than -40 dBm, five antenna bars; If it is more than -40dBm, the number of antenna bars is decided as six. In this case, when the number of antenna bars is 0, it means that the area where the digital broadcast reception device 100 is located is a no-service area in which a digital broadcast signal is not received.

Meanwhile, it should be noted that the reference table illustrated in FIG. 3 is merely an example, and the present invention is not limited by FIG. 3.

The controller 140 displays the number of antenna bars determined by the process S140 on the display unit 150 (S150).

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined not only by the claims but also by the equivalents of the claims.

As described above, the present invention displays the antenna bar for the received signal in consideration of the interference phenomenon and the bit error rate according to the surrounding environment of the digital broadcasting receiver, thereby more accurately displaying the reception state of the antenna bar and allowing users to more accurately grasp the reception state. have.

In addition, the present invention can reduce the shaking of the antenna bar by updating and displaying the antenna bar every predetermined time (for example, 1.2 seconds).

Claims (7)

An antenna bar display method of a digital broadcast receiver, Receiving a digital broadcast signal, Analyzing the received digital broadcast signal by a predetermined time unit to detect reception state information; Converting the detected reception state information into decibel values (dBm), respectively; Determining the number of antenna bars to be displayed on a display unit screen according to the sum of the converted decibel values; And displaying the determined number of antenna bars on the display unit screen. The method of claim 1, wherein the reception status information is A method for displaying an antenna bar of a digital broadcasting receiver, characterized in that the strength ratio (SNR) of the interference signal with respect to the input signal (RSSI) and the loss ratio (BER) with respect to the input signal. delete In the digital broadcast receiver, A digital broadcast receiver for receiving and outputting a digital broadcast signal, and analyzing the received digital broadcast signal by a predetermined time unit and outputting reception state information; Request output of the reception status information to the digital broadcast receiver on a predetermined time basis, and convert the reception status information output from the digital broadcast receiver into decibel values (dBm), respectively, and add the digital broadcast signal according to the summed result. A control unit for determining the number of antenna bars indicating a reception state of the unit; And a display unit for displaying the number of antenna bars determined by the controller. The method of claim 4, wherein And a memory for storing, by the controller, a reference table for determining the number of antenna bars to be displayed on the display unit. The method of claim 4, wherein the reception status information is And a loss ratio (BER) of an input signal and an intensity ratio (SNR) of an interference signal with respect to an input signal strength (RSSI) and an input signal. The method of claim 5, wherein the control unit And determining the number of antenna bars by comparing the received state information with a decibel value (dBm), respectively, and comparing the sum value with a value of a reference table stored in the memory.

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