JP2009213030A - Broadcasting receiving apparatus, control method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a broadcasting receiving apparatus capable of performing channel setup fitted to a current position promptly in impaired receive state. <P>SOLUTION: A control unit 14 specifies a broadcasting area at the current position based on location information of a mobile terminal unit, and the specified broadcasting area is stored in a memory A15. A DTV control unit 23 measures a receive level of the broadcasting and compares the receive level with a predetermined threshold. When the receive level is smaller than the threshold, the DTV control unit 23 obtains frequency setting information, which in turn corresponds to the broadcasting area memorized in the memory A15, from a DTV memory unit B in which the broadcasting area and the frequency setting are memorized in matched state, and stores it in the DTV memory unit C that memorizes the frequency setting in the case of broadcast receive. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a broadcast receiving device, a receiving method, and a program, and more particularly, to a broadcast receiving device mounted on a mobile terminal or a car, and a broadcast receiving method and program in such a broadcast receiving device. .

  There are broadcast receivers such as an in-vehicle television and a television mounted on a portable terminal device. In these broadcast receiving apparatuses, when the broadcast service area changes with movement, it is necessary to perform channel setting according to the area after movement. As a technique for performing this channel setting automatically, there is a technique described in Patent Document 1. In Patent Document 1, it is determined whether or not the reception reception of the broadcast has deteriorated, and if it has deteriorated, the current position (latitude and longitude) is determined using the GPS function. Thereafter, broadcast station information is acquired from a server on the Internet from the latitude and longitude. Further, the new broadcast station series and the old broadcast station series are compared, and the reception channel is switched to the matching channel.

Japanese Patent Laying-Open No. 2004-23579 (FIG. 3, paragraph 0019)

  In Patent Document 1, after detecting the deterioration of the reception state, the latitude and longitude are determined, and broadcast station information is acquired from the server. In this case, there is a problem that there is a time lag between the detection of the deterioration of the reception state and the reception of the broadcast station information, and the user cannot watch the broadcast during that time. Especially in digital broadcasting, unlike analog broadcasting, if the reception state deteriorates, the broadcast cannot be seen at all, so it is slow to receive broadcast station information after detecting the deterioration of the reception state. It becomes. Further, in Patent Document 1, since broadcast station information is acquired from a server on the Internet, there is also a problem that network communication is required when setting a channel.

  An object of the present invention is to provide a broadcast receiving apparatus, a receiving method, and a program capable of quickly setting a channel according to the current position when the reception state deteriorates.

  In order to achieve the above object, the broadcast receiving apparatus of the present invention acquires position information, specifies a broadcast area at the current position based on the acquired position information, and stores the specified broadcast area in the first storage unit. When the reception level of the broadcast is measured and the reception level is determined to be smaller than a predetermined threshold, the frequency setting information corresponding to the broadcast area stored in the first storage unit is A broadcast reception control unit that is obtained from the second storage unit that stores the broadcast area and the frequency setting in association with each other, and that is stored in the third storage unit that stores the frequency setting at the time of broadcast reception. To do.

  A portable terminal device according to the present invention includes the broadcast receiving device according to the present invention.

  The method for controlling a broadcast receiving apparatus according to the present invention is a method for controlling a broadcast receiving apparatus that performs broadcast reception according to frequency setting information, wherein the broadcast receiving apparatus acquires position information and based on the acquired position information. Specifying the broadcast area at the current position, storing the specified broadcast area in the first storage unit, and the broadcast receiving apparatus measures the reception level of the broadcast, and the reception level is lower than a predetermined threshold value. If it is determined that the frequency is small, the frequency setting information corresponding to the broadcast area stored in the first storage unit is acquired from the second storage unit that stores the broadcast area and the frequency setting in association with each other. And storing the frequency setting in a third storage unit for storing the frequency setting.

  The program of the present invention is a program for causing a broadcast receiving apparatus that performs broadcast reception according to frequency setting information to execute a process of performing frequency setting. The broadcast receiving apparatus acquires position information, and the acquired position information is included in the acquired position information. When the broadcast area at the current position is identified based on the received broadcast area, the received broadcast area is measured in the first storage unit, the broadcast reception level is measured, and the reception level is determined to be smaller than a predetermined threshold value. The frequency setting information corresponding to the broadcast area stored in the first storage unit is acquired from the second storage unit that stores the broadcast area and the frequency setting in association with each other, and the frequency setting at the time of broadcast reception is performed. And a process of storing in a third storage unit to be stored.

  The broadcast receiving apparatus, receiving method, and program of the present invention can quickly set a channel according to the current position when the reception state deteriorates.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a portable terminal device including a broadcast receiving device according to a first embodiment of the present invention. The portable terminal device includes a wireless unit 11, a key operation unit 12, a display unit 13, a control unit 14, a storage unit A (first storage unit) 15, a determination circuit 16, a DTV wireless unit 20, and a DTV storage unit B (second storage). Storage unit) 21, DTV storage unit C (third storage unit) 22, DTV control unit 23, and GPS unit 30. The broadcast receiving device receives a digital television broadcast. The wireless unit 11 communicates with the base station. The key operation unit 12 includes a key input unit, and accepts an operation by a user when operating a mobile phone or a digital TV. The display unit 13 displays information input using the key operation unit 12 and a digital TV program.

  The DTV wireless unit 20 receives digital TV radio waves. The DTV storage unit B21 stores broadcast channel setting (frequency setting) information for each broadcast area (prefecture). The DTV storage unit C22 stores a broadcast channel setting to be set in the mobile terminal device. The DTV control unit 23 controls reception of digital TV broadcasts.

  FIG. 2 shows the stored contents of the DTV storage unit B21. In the DTV storage unit B21, a relationship (broadcast station list) between prefectures and broadcast channels is stored in advance. For example, in the DTV storage unit B21, information (setting 1) regarding the broadcast area “Hokkaido”, such that 1ch is “** broadcast” and 2ch is “++ broadcast” is stored. For the broadcast area “Okinawa Prefecture”, information (setting 47) in which 1ch is “** broadcast” and 2ch is “xx broadcast” is stored. The DTV storage unit C22 stores channel settings (any of settings 1 to 47) of the broadcast area corresponding to the current position.

  The GPS unit 30 is a position measurement function unit, and performs position measurement of the mobile terminal device. The storage unit A15 stores the position information (prefecture) measured by the GPS unit 30. The determination circuit 16 compares the prefecture stored in the storage unit A15 with the broadcast channel setting prefecture stored in the DTV storage unit C22, and determines whether or not they match. The control unit 14 controls the GPS unit 30 and the mobile phone.

  FIG. 3 shows an operation procedure. The user operates the key operation unit 12 to turn on the digital TV (step S1). When the digital TV is turned on, the control unit 14 activates the GPS unit 30 and measures the current position (step S2). The control unit 14 determines the prefecture where the mobile terminal device is located from the current position that has been measured (step S3). In step S3, the control unit 14 refers to the latitude / longitude information that defines the range of the prefecture for each prefecture, and determines the prefecture where the mobile terminal device is located from the position (latitude / longitude) measured in step S2. to decide. The control unit 14 stores the area information Ie corresponding to the prefecture determined in step S3 in the storage unit A15.

  The DTV wireless unit 20 receives the digital TV radio wave in response to the digital TV ON in step S1. The DTV control unit 23 determines whether or not the level Sr of the radio wave received by the DTV radio unit 20 is a level that can be demodulated (step S4). When the received radio wave level Sr is lower than a predetermined threshold value corresponding to the demodulatorable level, the DTV control unit 23 stores the channel setting prefecture set in the DTV storage unit C22, and the storage unit The area information Ie stored in A15 is compared (step S5). When the two do not match, the DTV control unit 23 acquires the channel setting of the prefecture indicated by the area information Ie from the DTV storage unit B21, and sets this in the DTV storage unit C22 (step S6).

  When the DTV control unit 23 determines that the channel setting prefecture set in the DTV storage unit C22 matches the area information Ie stored in the storage unit A15, the DTV control unit 23 sets the channel setting in the DTV storage unit C22. No change is made (step S7). When the DTV control unit 23 determines in step S5 that the received radio wave level Sr is equal to or higher than the demodulating level, the DTV control unit 23 proceeds to step S7 without performing area determination in step S5, and the DTV storage unit C22. Do not change the channel setting. The portable terminal device repeatedly executes the processes of steps S2 to S7, and changes the area information Ie in the storage unit A15 and the channel setting of the DTV storage unit C22.

  FIG. 4 shows a broadcast area. FIG. 4 shows two digital TV broadcast areas (broadcast area A and broadcast area B). The control unit 14 stores the area information Ie corresponding to the broadcast area A in the storage unit A15 when the current position of the mobile terminal device measured using the GPS satellite is within the latitude / longitude range corresponding to the broadcast area A. To do. When the current position is within the latitude / longitude range corresponding to the broadcast area B, the control unit 14 stores the area information Ie corresponding to the broadcast area B in the storage unit A15.

  Consider a case where the user moves from broadcast area A to broadcast area B. First, area information corresponding to the broadcast area A is stored in the storage unit A15, and channel setting information in the broadcast area A is stored in the DTV storage unit C22. When the user moves to the broadcast area B, the control unit 14 stores the area information Ie corresponding to the broadcast area B in the storage unit A15 in step S3 of FIG. At this time, if the reception level of the radio wave transmitted from the digital TV antenna in the broadcast area A is equal to or higher than the demodulatable level, the DTV control unit 23 can detect the DTV storage unit C22 even if the user moves to the broadcast area B. Do not make any changes.

  When the user moves away from the broadcast area A and the level of the radio wave transmitted from the digital TV antenna in the broadcast area A falls below the level that can be demodulated, the DTV control unit 23 performs the broadcast set in the DTV storage unit C22 in step S5. The area is compared with the area information Ie stored in the storage unit A15. As a result of the comparison, both are different, and in step S6, the DTV control unit 23 sets the channel setting of the broadcast area B indicated by the area information Ie in the DTV storage unit C22. The user can continue the television reception with the radio wave from the digital TV antenna in the broadcast area B by changing the channel setting of the DTV storage unit C22.

  In the present embodiment, the area information Ie based on the position information is stored in the storage unit A15, and the broadcast area stored in the storage unit A15 is stored in the DTV storage unit C22 when the radio wave reception level falls below the threshold value. Set channel settings. By doing in this way, even when the user moves across the broadcasting area, if the user can receive television in the broadcasting area before the movement, the user can continue to receive the television in the broadcasting area. If the reception level is reduced, the channel setting of the current broadcast area is automatically performed. Therefore, even when the reception state deteriorates, the user does not need to perform complicated operations. Can continue.

  In the present embodiment, the current broadcast area is determined before the reception level is lowered, and the determined area information Ie is stored in the storage unit A15 in advance. However, when the current broadcast area is determined, even if the determined broadcast area does not match the broadcast area currently set in the DTV storage unit C22, the channel setting of the DTV storage unit C22 is not changed. When the reception level is lowered, the broadcast area that has been discriminated in advance is set in the DTV storage unit C22, so that the position is determined after the reception level is lowered, and the setting change is performed compared to Patent Document 1 in which the broadcast area is discriminated. Can be done quickly. In addition, this embodiment has an advantage that network communication is not necessary because it is not necessary to acquire channel setting information from a server on the Internet.

  FIG. 5 shows a portable terminal device including the broadcast receiving device according to the second embodiment of the present invention. The mobile terminal device includes a radio unit 11, a key operation unit 12, a display unit 13, a control unit 14, a storage unit A15, a determination circuit 16, a radio radio unit 40, a radio storage unit B41, a radio storage unit C42, a radio control unit 43, The GPS unit 30 is included. The mobile terminal device of the present embodiment is the same as the mobile terminal device of the first embodiment except that the received broadcast is radio.

  The radio radio unit 40 receives radio broadcast radio waves. The radio storage unit B41 stores radio frequency setting information for each broadcast area (prefecture). The radio storage unit C42 stores frequency settings to be set in the mobile terminal device. The radio control unit 43 controls radio broadcast reception.

  FIG. 6 shows an operation procedure. The operation procedure in this embodiment is the same as the operation procedure in the first embodiment shown in FIG. 3 except that the broadcast is replaced with a radio broadcast. That is, the control unit 14 turns on the radio in step S11, performs position positioning in step S12, and stores the area information Ie in the storage unit A15 in step S13. In step S14, the radio control unit 43 compares the reception level with the threshold value. When the reception level is lower than the threshold value, the radio control unit 43 compares the broadcast area set in the radio storage unit C42 and the storage unit A15 in step S15. The area information Ie is compared.

  When the radio control unit 43 does not match as a result of the comparison in step S15, the radio control unit 43 proceeds to step S16 to set the frequency of the broadcast area indicated by the area information Ie in the radio storage unit C42. The process proceeds to step S17, and the radio storage unit C42 is not changed. Even when the radio control unit 43 determines in step S14 that the reception level is equal to or higher than the threshold value, the radio control unit 43 proceeds to step S17 and does not change the frequency setting.

  Similarly to the digital TV, the radio frequency is determined for each broadcast area. In this embodiment, the same effect as that of the first embodiment can be obtained with a mobile phone with a radio reception function.

  In the above description, the position of the mobile terminal device is measured by the GPS function. However, the position positioning is not limited to this, and other position positioning methods can be used. Further, although an example in which the broadcast receiving device is mounted on the mobile phone has been described, the device on which the broadcast receiving device is mounted is not limited to the mobile phone.

  As described above, the present invention has been described based on the preferred embodiment. However, the broadcast receiving apparatus, the control method, and the program of the present invention are not limited to the above embodiment, and the configuration of the above embodiment. Various modifications and changes are also included in the scope of the present invention.

The block diagram which shows the portable terminal device containing the broadcast receiving apparatus (television receiving apparatus) of 1st Embodiment of this invention. The figure which illustrates a broadcast station list. The flowchart which shows an operation | movement procedure. The figure which shows a broadcast area. The block diagram which shows the portable terminal device containing the broadcast receiver (radio receiver) of 2nd Embodiment of this invention. The flowchart which shows the operation | movement procedure in 2nd Embodiment.

Explanation of symbols

11: Radio unit 12: Key operation unit 13: Display unit 14: Control unit 15: Storage unit A
16: Determination circuit 20: DTV wireless unit 21: DTV storage unit B
22: DTV storage unit C
23: DTV control unit 30: GPS unit 40: Radio radio unit 41: Radio storage unit B
42: Radio storage unit C
43: Radio control unit

Claims (6)

A control unit that acquires position information, specifies a broadcast area at the current position based on the acquired position information, and stores the specified broadcast area in a first storage unit;
When the broadcast reception level is measured and it is determined that the reception level is lower than a predetermined threshold value, the frequency setting information corresponding to the broadcast area stored in the first storage unit is set to the broadcast area and the frequency setting. A broadcast receiving apparatus having a broadcast reception control unit that is acquired from a second storage unit that stores the information in association with each other and that is stored in a third storage unit that stores a frequency setting at the time of broadcast reception.   The broadcast reception according to claim 1, wherein the control unit specifies a broadcast area at a current position based on the acquired position information with reference to information in which a broadcast area and a position range of the broadcast area are associated with each other. apparatus.   The broadcast reception control further includes a determination circuit that determines whether or not a broadcast area stored in the first storage unit and an area corresponding to a frequency setting stored in the third storage unit match. When the determination unit determines that the determination circuits do not match, the unit acquires frequency setting information corresponding to the broadcast area stored in the first storage unit from the second storage unit, and the third storage unit The broadcast receiving apparatus according to claim 1, wherein the broadcast receiving apparatus is stored in the receiver.   A portable terminal device comprising the broadcast receiving device according to any one of claims 1 to 3. A method of controlling a broadcast receiving apparatus that performs broadcast reception according to frequency setting information,
The broadcast receiving device acquires position information, specifies a broadcast area at the current position based on the acquired position information, and stores the specified broadcast area in a first storage unit;
When the broadcast receiving device measures the reception level of the broadcast and determines that the reception level is lower than a predetermined threshold, the frequency setting information corresponding to the broadcast area stored in the first storage unit is broadcast. A method for controlling a broadcast receiving apparatus, comprising: acquiring from a second storage unit that stores an area and a frequency setting in association with each other and storing the frequency setting at the time of broadcast reception in a third storage unit. A program for causing a broadcast receiving device that performs broadcast reception according to frequency setting information to execute a process for performing frequency setting, the broadcast receiving device
Processing for acquiring position information, specifying a broadcast area at the current position based on the acquired position information, and storing the specified broadcast area in the first storage unit;
When the broadcast reception level is measured and it is determined that the reception level is lower than a predetermined threshold value, the frequency setting information corresponding to the broadcast area stored in the first storage unit is set to the broadcast area and the frequency setting. A program that is acquired from a second storage unit that is stored in association with each other, and that executes processing to be stored in a third storage unit that stores frequency settings at the time of broadcast reception.

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