JP3992632B2 - Mobile device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile terminal, and more particularly to a mobile terminal having a content receiving function for receiving content from a broadcasting system and a mobile communication function for performing communication between mobile communication systems.
[0002]
[Prior art]
In this type of portable terminal, a plurality of icons indicating the remaining battery level, reception sensitivity, and the like are displayed on the screen, whereby it is possible to easily grasp the battery life and the reception state of radio waves. Therefore, in the conventional portable terminal, such an icon was always displayed on the screen.
[0003]
[Problems to be solved by the invention]
However, the conventional technique has a problem that the screen is limited by the icon and the viewing of the video content is hindered. This problem can be solved by stopping the display of the icon when viewing the video content. However, depending on the video content, there may be a case where comfortable viewing is hindered. In other words, when the video content is interactive content such as a viewer participation quiz, a response to the transmission source is necessary, and therefore the video content cannot be viewed with peace of mind unless the reception sensitivity is grasped.
[0004]
Therefore, a main object of the present invention is to provide a portable terminal that can comfortably enjoy content.
[0005]
[Means for Solving the Problems]
The portable terminal according to the present invention is capable of viewing content information receiving means for receiving video content from a broadcasting system, mobile communication means for communicating with a mobile communication system, and sensitivity information indicating reception sensitivity of radio waves transmitted from the mobile communication system. Information output means for outputting in the state, content output means for outputting the video content received by the content receiving means in response to the content output operation, and disabling of the information output means when the content output means outputs the video content And when the reception sensitivity of the radio wave transmitted from the mobile communication system falls below a threshold value while the interactive video content requesting response using the mobile communication system is being output by the content output means, the warning is made visible Warning means for outputting is provided.
[0006]
[Action]
The content receiving means receives video content from the broadcasting system, and the mobile communication means communicates with the mobile communication system. Sensitivity information indicating the reception sensitivity of radio waves transmitted from the mobile communication system is output in a visible state by the information output means. The video content received by the content receiving unit is output by the content output unit in response to the content output operation. The disabling unit disables the information output unit when the content output unit outputs the video content . Further, the warning means warns when the reception sensitivity of the radio wave transmitted from the mobile communication system falls below a threshold value in a state in which the interactive video content for requesting a response using the mobile communication system is output by the content output means. Output in the visible state.
[0007]
Preferably, the warning means includes content determination means for determining whether the video content output by the content output means is bidirectional video content, and sensitivity determination for determining whether the radio wave reception sensitivity is below a threshold value. Including means.
[0008]
More preferably, the warning means stops outputting the warning when a predetermined period has elapsed.
[0009]
In one aspect, the broadcast system broadcasts a plurality of video contents through a plurality of channels, and the content output means outputs the video contents of the channel selected by the channel switching operation. The warning means determines whether or not a warning should be output every time a channel switching operation is performed.
[0010]
Preferably, the content output unit displays the video content on the screen, and the warning unit displays the warning on the screen.
[0014]
【The invention's effect】
According to the present invention, since it is possible to recognize from the output of the warning that the response directed to the interactive video content is impossible, the interactive video content can be enjoyed with peace of mind.
[0015]
The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.
[0016]
【Example】
Referring to FIG. 1, a mobile communication terminal 10 of this embodiment includes a mobile communication circuit 12 that performs mobile communication using a mobile communication system, and a broadcast program that receives program content broadcast using a television broadcast system. A receiving circuit 14 and a CPU 36 that controls both the mobile communication circuit 12 and the broadcast program receiving circuit 14 are included. All of the mobile communication circuit 12, the broadcast program receiving circuit 14, and the CPU 36 are driven by power output from the power supply circuit 32 based on the battery 34.
[0017]
When a dial operation is performed through the operation panel 38, the CPU 36 instructs the radio circuit 18 provided in the mobile communication circuit 12 to perform call processing. When a connection with the other party is established by this call processing, a call can be made. When a call signal is received through the antenna 16, the radio circuit 18 notifies the CPU 36 of an incoming call. The CPU 36 instructs the sound generator 56 provided in the broadcast program receiving circuit 14 to generate a ringing tone signal, and instructs the character generator 64 provided in the broadcast program receiving circuit 14 to generate a character signal representing the calling message. . As a result, a ringing tone is output from the speaker 58 and a calling message is output from the monitor 66. When an incoming call operation is performed by the operation panel 38 in response to the output of the ringing tone and the call message, a connection with the other party is established, and a call can be made.
[0018]
When a call-ready state is entered, the audio signal captured by the microphone 30 is amplified by the amplifier 28 and converted into audio data that is a digital signal by the AD / DA conversion circuit 22. The converted voice data is encoded into packet data, that is, a voice packet by the signal processing circuit 20, and the encoded voice packet is modulated by the radio circuit 18. The modulated voice packet is transmitted to the other party via the antenna 16. Voice packets sent from the other party are received by the antenna 16 and demodulated by the radio circuit 18. The demodulated audio packet is decoded into audio data by the signal processing circuit 20, and the decoded audio data is converted into an audio signal which is an analog signal by the AD / DA conversion circuit 22. The converted audio signal is output from the speaker 26 via the amplifier 24.
[0019]
When a mail is created and a transmission operation is performed by the operation panel 38, the CPU 36 instructs the wireless circuit 18 to connect to a site that manages the destination mailbox, and performs signal processing to encode the created mail data. Command circuit 20. The created mail data is converted into packet data, that is, a mail packet by the signal processing circuit 20, and the converted mail packet is transmitted to a desired site through the radio circuit 18 and the antenna 16.
[0020]
If a mail packet exists in his / her mailbox, the mail packet is received through the antenna 16. The received mail packet is demodulated by the radio circuit 18 and decoded by the signal processing circuit 20. In response to the mail arrival notification from the radio circuit 18, the CPU 36 stores the mail data decoded by the signal processing circuit 20 in the flash memory 40 and instructs the character generator 64 to output a character signal indicating the arrival of the mail data. To do. As a result, an icon indicating mail reception, that is, a mail icon is displayed on the monitor 66.
[0021]
In connection with the character display process, the CPU 36 always detects the remaining amount of the battery 34 and the reception sensitivity of the antenna 16, and the character generator 64 determines the remaining amount of the battery 34 in addition to the display of the telephone call message and the mail icon. A battery remaining amount icon and a reception sensitivity icon representing the reception sensitivity of the antenna 16 are displayed on the monitor 66. Referring to FIG. 2, battery remaining amount icon Ib, mail icon Im, and reception sensitivity icon Is are displayed on icon bar BAR. The call message CM is displayed at the center of the screen.
[0022]
When the program viewing mode is selected by operating the operation panel 38 and a desired channel is selected, the CPU 36 activates the program receiving circuit 14 and instructs the tuner 44 to select a desired channel. The tuner 44 extracts a high-frequency signal of a desired channel from the high-frequency signal of the television broadcast captured by the antenna 42, and performs a demodulation process according to the MPEG format on the extracted high-frequency signal. As a result, digital broadcast data of a desired channel is output from the tuner 44. The output digital broadcast data is given to the demultiplexer 48 via the buffer memory 46.
[0023]
The demultiplexer 48 extracts audio packets and video packets from the supplied digital broadcast data, and the AV selector 50 supplies the extracted audio packets and video packets to the MPEG2-AAC audio decoder 52 and the MPEG4 video decoder 60, respectively.
[0024]
The MPEG2-AAC audio encoder 52 decodes a given audio packet to generate audio data. The generated audio data is converted into an audio signal which is an analog signal by the D / A converter 54, and the converted audio signal is given to the speaker 58. As a result, the sound of the program content broadcast on the desired channel is output from the speaker 58.
[0025]
The MPEG4 video decoder 60 decodes the supplied video packet to generate video data, and supplies the generated video data to the NTSC encoder 62. This video data is converted into a composite video signal by the NTSC encoder 62, and the converted composite video signal is output to the monitor 66. As a result, the video of the program content broadcast on the desired channel is displayed on the monitor 66 screen.
[0026]
Among program contents received by television broadcasting, in addition to one-way contents that are simply viewed, there are two-way contents that require a response from an operator such as a viewer participation type quiz. When viewing such interactive content, the CPU 36 instructs the radio circuit 18 to connect to a specific site managed by the broadcast station in response to the operation of the operation panel 38 by the operator, and outputs a packet according to the operation mode. To the signal processing circuit 20. The packet is transmitted from the antenna 16 to a specific site. Thereby, a response to interactive content is realized.
[0027]
However, if the icon bar BAR shown in FIG. 2 is always displayed when viewing the program content, a part of the program video is blocked by the icon bar BAR. In addition, displaying the program video so as to avoid the icon bar BAR reduces the size of the program video and reduces the visibility. Therefore, in this embodiment, the display of the icon bar BAR is interrupted when viewing the program content. However, for interactive content, since both the television broadcasting system and the mobile communication system are used as described above, if the display of the icon bar BAR is always interrupted during viewing, the following problem occurs. .
[0028]
That is, due to the difference in system, a difference also occurs between the area covered by the television broadcasting system and the area covered by the mobile communication system. Then, although the television broadcasting system can be covered, the operator cannot easily recognize that transmission to a specific site is impossible when moving to a place where the mobile communication system cannot cover. Therefore, in this embodiment, a warning message is displayed on the screen when the program content being viewed is interactive content and the reception sensitivity of the antenna 16 falls below a threshold value.
[0029]
Specifically, when a viewer participation quiz program as shown in FIG. 3A is being viewed, if the reception sensitivity falls below a threshold value, an output command of a character signal representing a warning message is sent from the CPU 36 to the character generator. 64. As a result, the warning message AM “Unable to receive interactive service” shown in FIG. As a result, the operator can easily recognize that the answer to the quiz is impossible, and can view the quiz program with peace of mind.
[0030]
The CPU 36 is a multitasking CPU equipped with a multitasking OS such as μITRON. In relation to the character display processing, the CPU 36 has a reception sensitivity detection task shown in FIG. 4, a battery remaining amount detection task shown in FIG. The incoming call detection task, the incoming mail detection task shown in FIG. 7, the channel switching task shown in FIG. 8, and the display control task shown in FIGS.
[0031]
First, referring to FIG. 4, the reception sensitivity of antenna 16 is detected in each of steps S1, S3 and S5. If the reception sensitivity is greater than the threshold THs3, YES is determined in step S1, the variable SST indicating the reception sensitivity is saved as the register value Pre_SST in step S7, and the variable SST is set to “3” in step S9. When the reception sensitivity is equal to or less than the threshold value THs3 and greater than the threshold value THs2, YES is determined in step S3, the variable SST indicating the reception sensitivity is saved as the register value Pre_SST in step S11, and the variable SST is set to “2” in step S13. Set to "".
[0032]
If the reception sensitivity is equal to or lower than the threshold value THs2 and greater than the threshold value THs1, YES is determined in step S5, the variable SST indicating the reception sensitivity is saved as the register value Pre_SST in step S15, and the variable SST is set to “1” in step S17. Set to "". If the reception sensitivity is less than or equal to the threshold THs1, it is determined NO in step S5, the variable SST indicating the reception sensitivity is saved as the register value Pre_SST in step S19, and the variable SST is set to “0” in step S21.
[0033]
When the process of step S9, S13, S17 or S21 is completed, it is determined in step S23 whether the register value Pre_SST and the variable SST are equal to each other. If Pre_SST = SST, the process directly returns to step S1. If Pre_SST ≠ SST, the flag Fsst is set to “1” in step S25, and then the process returns to step S1. Therefore, the flag Fsst is set to “1” when the reception sensitivity changes.
[0034]
Referring to FIG. 5, in steps S31 and S33, the remaining amount of battery 34 is determined. If the remaining amount value is larger than the threshold value THb2, YES is determined in step S31, and the variable BTR is set to “2” in step S35. If the remaining amount value is less than or equal to threshold value THb2 and greater than threshold value THb1, YES is determined in step S33, and variable BTR is set to “1” in step S37. If the remaining amount value is equal to or less than the threshold value THb1, NO is determined in step S33, and the variable BTR is set to “0” in step S39. When the process of step S35, S37 or S39 is completed, the process returns to step S31.
[0035]
Referring to FIG. 6, in step S41, it is determined whether there is an incoming call. If YES is determined, the flag Ftel is set to “1” in step S43, and then the process returns to step S41.
[0036]
Referring to FIG. 7, it is determined in step S51 whether an incoming mail has been received. If YES is determined, the flag Fml is set to “1” in step S53, and then the process returns to step S51.
[0037]
Referring to FIG. 8, in step S61, it is determined whether or not an operation for switching a reception channel for program content has been performed. If YES is determined here, tuning is performed in step S63, and it is determined in step S65 whether the received program content is unidirectional content or bidirectional content. This determination is made based on the program identifier included in the digital broadcast data. If it is determined that the content is bidirectional content, the flags Fprg1 and Fprg2 are set to “1” in step S67. If it is determined that the content is unidirectional content, the flags Fprg1 and Fprg2 are set to “0” in step S69. When the process of step S67 or S69 is completed, the process returns to step S61.
[0038]
Referring to FIG. 9, in step S71, it is determined whether the program viewing mode is selected, that is, whether the operator is viewing the program content. If it is determined NO, the icon bar BAR is displayed on the monitor 66 in step S73. On the icon bar BAR, a battery remaining amount icon Ib indicating the current remaining amount of the battery 34 and a reception sensitivity icon Is indicating the current reception sensitivity of the antenna 16 appear. When a mail is received, a mail icon Im appears on the icon bar BAR.
[0039]
In step S75, the setting value of the flag Ftel is determined. If the setting value is “0”, the process directly returns to step S71, but if the setting value is “1”, it is considered that there is an incoming call, and the processing after step S77 is performed. Proceed to First, in step S77, a flag Ftel is set to “0”, and a call message CM is displayed in step S79. In step S81, it is determined whether there is an incoming call operation. When the incoming call operation is performed, the display of the call message CM is stopped in step S83. When the call ends, YES is determined in the step S85, and the process returns to the step S71.
[0040]
If YES is determined in the step S71, the display of the icon bar BAR is stopped in a step S87, and the states of the flag Fprg1, the variable SST, and the flag Fprg2 are determined in steps S89, S91, and S93. Step S89 is processing for determining whether the program content being viewed is bidirectional content or unidirectional content, and step S91 is processing for determining whether communication using the mobile communication system is possible. Step S93 is processing for determining whether or not the warning message AM has already been output for the interactive content being viewed.
[0041]
If the program content being viewed is one-way content, NO is determined in step S89, and the process directly proceeds to step S105. If the program content being viewed is interactive content, but communication using the mobile communication system is possible, YES is determined in step S91, and the process directly proceeds to step S105. If the program content being viewed is interactive content and communication using the mobile communication system is impossible, but the warning message AM has already been output, NO is determined in step S93, and the process directly proceeds to step S105.
[0042]
If the program content being viewed is interactive content, communication using the mobile communication system is not possible, and the warning message AM has not been output, YES is determined in step S93, and the warning message AM is monitored in step S95. 66. In step S97, the flag Fprg2 is set to “0”, and in step S99, the flag Fsst is set to “0”. By setting the flag Fprg2 to “0”, it is possible to determine that the warning message AM has been output. The reason for setting the flag Fsst to “0” will be described later. In step S101, it is determined whether a predetermined time has elapsed. If YES is determined, the display of the warning message AM is stopped in step S103, and then the process proceeds to step S105.
[0043]
In step S105, the setting value of the flag Ftel is determined. If the setting value is “1”, it is considered that there is an incoming call, and the processing of steps S107 to S115 is executed. However, since this series of processing is the same as the processing in steps S77 to S85 described above, a duplicate description is omitted.
[0044]
If the set value of the flag Ftel is “0”, NO is determined in step S105, and the flags Fsst, Fml, and variable BTR are determined in steps S117, S119, and S121, respectively. Step S117 is a process for determining whether or not the reception sensitivity of the antenna 16 has changed. Step S119 is a process for determining whether or not an incoming mail has been received. Step S121 is whether or not the remaining amount of the battery 34 is small. This is a process for determining.
[0045]
If the reception sensitivity of the antenna 16 has changed, YES is determined in step S117, the flag Fsst is set to “0” in step S123, and the process proceeds to step S127. If there is an incoming mail, YES is determined in the step S119, the flag Fml is set to “0” in a step S125, and then the process proceeds to a step S127. If YES is determined in the step S121, the process proceeds to a step S127 as it is. In step S127, the icon bar BAR is displayed on the monitor 66 in the same manner as in step S73. In step S129, it is determined whether or not a predetermined time has elapsed. When the predetermined period has elapsed, the display of the icon bar BAR is stopped in step S131, and the process returns to step S71.
[0046]
Since the flag Fsst is set to “0” in step S99 described above, when the warning message AM is displayed in step S95, YES is not determined in step S117, and the icon bar is displayed in step S127. The BAR display process is not executed. That is, the situation where the icon bar BAR is displayed in addition to the warning message AM is avoided by the process of step S99.
[0047]
As can be understood from the above description, the program content broadcast by the television broadcasting system is received by the broadcast program receiving circuit 14. Communication with the mobile communication system is performed by the mobile communication circuit 12. The video of the program content obtained by the broadcast program receiving circuit 14 is output from the monitor 66. However, when the program content is interactive content and a failure occurs in communication with the mobile communication system, a warning message AM is output from the monitor 66. The operator recognizes from this warning message AM that it is impossible to respond to the interactive content. Occurrence of the warning message AM allows the operator to view the interactive content with peace of mind.
[0048]
When the warning message AM is output once, the warning message AM is not output again as long as the same bidirectional content is received. This does not interfere with the comfort of the operator who is aware that there is a communication failure and continues to receive the same interactive content.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is an illustrative view showing an example of a display mode of an icon bar and an incoming message.
3A is an illustrative view showing an example of a display mode of interactive content, and FIG. 3B is an illustrative view showing another example of a display mode of interactive content.
FIG. 4 is a flowchart showing a part of the operation of FIG. 1 embodiment;
FIG. 5 is a flowchart showing another part of the operation of FIG. 1 embodiment;
6 is a flowchart showing another part of the operation of the embodiment in FIG. 1; FIG.
FIG. 7 is a flowchart showing still another part of the operation of the embodiment in FIG. 1;
FIG. 8 is a flowchart showing another part of the operation of FIG. 1 embodiment;
FIG. 9 is a flowchart showing still another part of the operation of FIG. 1 embodiment;
10 is a flowchart showing still another portion of the operation of the embodiment in FIG. 1; FIG.
FIG. 11 is a flowchart showing another part of the operation of the embodiment in FIG. 1;
12 is a flowchart showing another part of the operation of FIG. 1 embodiment; FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Mobile communication terminal 12 ... Mobile communication circuit 14 ... Broadcast program receiving circuit 18 ... Radio circuit 20 ... Signal processing circuit 36 ... CPU
60 ... MPEG4 video decoder 64 ... Character generator 66 ... Monitor

Claims (7)

Content receiving means for receiving video content from a broadcasting system;
Mobile communication means for communicating with a mobile communication system;
Information output means for outputting sensitivity information indicating reception sensitivity of radio waves transmitted from the mobile communication system in a visible state;
Content output means for outputting video content received by the content receiving means in response to a content output operation;
The disabling means for disabling the information output means when the content output means outputs the video content , and a state in which the interactive video content for requesting a response using the mobile communication system is output by the content output means A portable terminal comprising warning means for outputting a warning in a visible state when reception sensitivity of a radio wave transmitted from the mobile communication system falls below a threshold value.   The warning means determines whether the video content output by the content output means is the bidirectional video content, and determines whether the radio wave reception sensitivity is below the threshold value. The mobile terminal according to claim 1, further comprising a sensitivity determination unit.   The portable terminal according to claim 1, wherein the warning unit stops outputting the warning when a predetermined period has elapsed. The broadcasting system broadcasts a plurality of video contents through a plurality of channels,
The content output means outputs the video content of the channel selected by the channel switching operation,
The portable terminal according to claim 3, wherein the warning means determines whether or not a warning should be output every time the channel switching operation is performed. The content output means displays the video content on a screen,
The portable terminal according to claim 1, wherein the warning unit displays the warning on the screen. Content receiving means for receiving video content from a broadcasting system, mobile communication means for communicating with a mobile communication system, and information output for outputting sensitivity information indicating reception sensitivity of radio waves transmitted from the mobile communication system in a visible state And a processor of a portable terminal provided with content output means for outputting video content received by the content receiving means in response to a content output operation,
The disabling step of disabling the information output means when the content output means outputs the video content , and a state in which the content output means outputs bidirectional video content for requesting a response using the mobile communication system An output control program for executing a warning step of outputting a warning in a visible state when reception sensitivity of a radio wave transmitted from the mobile communication system falls below a threshold value. Content receiving means for receiving video content from a broadcasting system, mobile communication means for communicating with a mobile communication system, and information output for outputting sensitivity information indicating reception sensitivity of radio waves transmitted from the mobile communication system in a visible state And an output control method executed by a portable terminal comprising content output means for outputting video content received by the content receiving means in response to a content output operation,
The disabling step of disabling the information output means when the content output means outputs the video content , and a state in which the content output means outputs bidirectional video content for requesting a response using the mobile communication system An output control method comprising a warning step of outputting a warning in a visible state when reception sensitivity of a radio wave transmitted from the mobile communication system falls below a threshold value.

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