JP2008306426A - Cellular phone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cellular phone for always acquiring the capacity of a cell required for communication processing by monitoring capacity of the cell when watching a television receiver and reproducing dynamic images. <P>SOLUTION: The cellular phone for reproducing dynamic images includes an image watching battery capacity calculation means (S209) for calculating remaining capacity of a cell and remaining capacity for watching images required for reproducing process of dynamic images on the basis of the capacity of cell required for communication processing, an image watching ON/OFF determination means (S211) for determining whether dynamic image reproduction processing is possible on the basis of the calculated remaining capacity of cell for image watching, and a warning means (S219) for generating a warning when the dynamic image reproduction processing is determined to be impossible. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mobile phone that reproduces a moving image, and more specifically, to a mobile phone that constantly monitors a remaining battery level when a moving image is reproduced and always secures a battery amount for performing call processing.

  When using a TV viewing function for a mobile phone equipped with a TV viewing function such as terrestrial digital broadcasting, the battery consumption is more than normal, and the voltage up to a low voltage before the user notices after watching TV for several hours. As a result, there was a problem that the call time of the voice call was lost.

Conventionally, when the remaining amount of the battery falls below a predetermined level, specific data is displayed on the display unit and presented to the user so that the user who sees the data can immediately perform work such as battery replacement. (See Patent Document 1).
JP 2006-217258 A

  However, when using the TV viewing function or the moving image playback function, a large amount of battery is consumed where the user does not expect. In some cases, not only incoming calls) but also incoming calls could not be made.

  The present invention has been made in view of the above problems, and monitors a remaining battery level when watching TV or playing back a moving image, and can always secure a battery amount necessary for call processing. The purpose is to provide a telephone.

  In order to solve the above problems, a mobile phone according to the present invention is a mobile phone that receives a moving image signal and reproduces a moving image, and is based on a remaining battery level and a battery amount required for call processing. Viewing battery remaining amount calculation means for calculating a viewing battery remaining amount value required for moving image reproduction processing, and whether or not moving image reproduction processing is possible based on the viewing battery remaining amount value calculated by the viewing battery remaining amount calculation means A viewing permission / non-permission determining unit that determines whether or not a moving image reproduction process is impossible by the viewing permission / non-permission determining unit, and a warning unit that generates a warning.

  According to the mobile phone of the present invention, when watching a television or playing back a moving image, the remaining battery level is monitored in consideration of the amount of battery for performing the call process for a predetermined time. It becomes possible to always secure the required battery amount.

  An embodiment of a mobile phone according to the present invention will be described with reference to the accompanying drawings. As an example of the cellular phone according to the present invention, a cellular phone 1 having a reproduction function for receiving a moving image signal of terrestrial digital broadcasting (including terrestrial digital one-segment broadcasting) and reproducing the moving image will be described. To do.

  As shown in FIG. 1, the mobile phone 1 includes a main control unit 11, a power supply circuit unit 12, an operation input control unit 13, an LCD control unit 14, a storage unit 15, an audio codec 16, a modulation / demodulation circuit unit 17, and a television control unit 18. A demultiplexing unit 19 and an image decoder 20.

  The main control unit 11 includes a CPU (Central Processing Unit) that performs various data processing and computations, performs overall control of the mobile phone 1, and performs battery remaining amount monitoring processing, which will be described later, and other various computations. Processing and control processing are performed. The power supply circuit unit 12 switches the power on / off state based on an input by the user via the operation key 21 and supplies power to each unit from a power supply source (battery or the like) when the power is on. Thus, the mobile phone 1 is made operable. The power supply circuit unit 12 manages the remaining battery level of the power supply source and transmits this remaining battery level value in response to a request.

  The operation input control unit 13 transmits data input by the operation keys 21 to the main control unit 11. The LCD control unit 14 performs processing for displaying document data, image data, and the like on the liquid crystal display 22 based on the control of the main control unit 11. The storage unit 15 temporarily stores a ROM (Read Only Memory) storing a processing program for processing performed by the main control unit 11 and a magnetic storage device such as a hard disk, and data used when the main control unit 11 performs processing. And an electrical storage device such as a random access memory (RAM).

  The sound codec 16 generates an analog sound signal from the sound collected by the microphone 23 based on the control of the main control unit 11. When an analog signal is input from the voice codec 16 during a voice call, the modem circuit unit 17 converts the signal into a digital signal and transmits the digital signal to the transmission / reception circuit unit 25. The transmission / reception circuit unit 25 transmits this digital audio signal via the antenna 26.

  Further, the modem circuit unit 17 converts the digital audio signal received via the transmission / reception circuit unit 25 into an analog audio signal. The voice codec 16 acquires an analog voice signal from the modulation / demodulation circuit unit 17 and outputs it as a voice from the speaker 24 during a voice call.

  The television control unit 18 is a tuner 30 that receives a moving image signal of terrestrial digital broadcasting (including terrestrial digital one-segment broadcasting), and a remaining battery level monitoring unit 31 that monitors the remaining battery level during reproduction of the terrestrial digital broadcasting. The computer 32 includes a calculation unit 32 that calculates the terrestrial digital broadcast viewable time from the remaining battery level of the mobile phone 1.

  The demultiplexing unit 19 performs a multiplexing process for generating a multiplexed signal by superimposing a plurality of signals, and a separating process for separating the multiplexed signal into a plurality of signals. For example, the demultiplexing unit 19 inputs a multiplexed moving image signal of terrestrial digital broadcasting received by the television control unit 18, separates the input moving image signal into an image signal and an audio signal, and outputs the image signal. Are transmitted to the image decoder 20 and the audio signal is transmitted to the audio codec 16.

  The image decoder 20 receives the image signal from the demultiplexing unit 19 and decodes the image signal by a decoding method corresponding to a predetermined encoding method to generate a reproduced moving image signal. When the image decoder 20 transmits the reproduced moving image signal to the LCD control unit 14, the LCD control unit 14 displays the moving image of the terrestrial digital broadcast on the liquid crystal display 22.

  Note that the processing program used by the main control unit 11 may be installed in the storage unit 15 in advance or downloaded via the antenna 26.

  When a conventional mobile phone with a TV viewing function receives a moving image signal of terrestrial digital broadcasting and plays the moving image, the battery runs out before the user notices, and the call processing and mail transmission / reception processing are performed. There is a risk that it may become impossible to perform such processing. Therefore, the mobile phone 1 according to the present invention monitors the remaining battery level in order to keep the minimum battery level when receiving the moving image signal of terrestrial digital broadcasting and reproducing the moving image. The remaining battery level monitoring process is performed.

  Note that the mobile phone 1 monitors the remaining battery level so that the remaining battery level is not less than a preset value of the remaining battery level. This battery remaining amount regulation value is stored in the storage unit 15 in advance. In addition, the mobile phone 1 monitors the remaining battery level so as to always secure a battery amount that can perform call processing for a predetermined call time. The predetermined call time is set as a call time setting value, for example, according to the procedure shown in the flowchart of FIG.

  Here, a procedure for setting the call time setting value in the mobile phone 1 will be described with reference to FIG. Hereinafter, for example, “step S101” is described as “S101”, and “step” is omitted.

  First, the main control unit 11 of the mobile phone 1 determines whether or not the user has instructed the setting of the call time setting value (S101). When the setting of the call time set value is instructed, the main control unit 11 displays the call time set value setting screen 40 as shown in FIG. 3 on the liquid crystal display 22 (S103). The setting screen 40 includes a time input field 41 for inputting a minimum call time, a determination button 42 for setting the time input in the time input field 41 as a call time set value, and a call time set value. A return button 43 for ending without setting is provided. The user inputs a desired call time setting value in the time input field 41 using the operation keys 21.

  The main control unit 11 determines whether or not the return button 43 has been pressed (S105). When the return button 43 is pressed (Yes in S105), the main control unit 11 ends the process without setting the call time setting value.

  When the return button 43 has not been pressed (No in S105), the main control unit 11 determines whether or not the call time has been input and the decision button 42 has been pressed (S107). When the call time is input and the determination button 42 is not pressed (No in S107), the process returns to S105 and waits until the return button 43 or the determination button 43 is pressed.

  When the call time is input and the enter button 42 is pressed (Yes in S107), the main control unit 11 stores the time input in the time input field 41 as the call time set value (for example, 30 minutes). (S109). The input time is stored in the storage unit 18 as a call time set value, so that the call time set value is set.

  Next, a procedure when the mobile phone 1 performs the battery remaining amount monitoring process at the time of reproducing the terrestrial digital broadcast based on the set call time setting value will be described based on the flowcharts shown in FIGS. 4 and 5. To do.

  First, as shown in FIG. 4, the battery remaining amount monitoring unit 31 determines whether or not the TV playback function of the mobile phone 1 has been activated (S201). When the playback function of the television is activated (Yes in S201), the battery remaining amount monitoring unit 31 acquires the battery remaining amount value from the power supply circuit unit 12 (S203). Further, the battery remaining amount monitoring unit 31 acquires the battery remaining amount specified value from the storage unit 15 (S205).

  The remaining battery charge monitoring unit 31 compares the remaining battery charge value acquired in S203 with the specified remaining battery charge value in S205, and determines whether or not the remaining battery charge value is greater than the specified remaining battery charge value ( S207).

  If the remaining battery level is greater than the specified remaining battery level (Yes in S207), the remaining battery level monitoring unit 31 determines that there is sufficient remaining battery level to perform the terrestrial digital broadcast reproduction process. Then, the calculation unit 32 performs a viewability determination process for determining whether or not there is a sufficient remaining battery capacity for performing the reproduction process (S209).

  FIG. 5 is a flowchart illustrating the procedure of the viewing permission / inhibition determination process. First, the calculation unit 32 acquires the remaining call time setting value stored in the storage unit 15 in S109 (S301). Moreover, the calculating part 32 acquires the battery remaining charge value which the battery remaining charge monitoring part 31 acquired by S203 (S303). At this time, the calculation unit 32 may acquire the battery remaining amount value from the power supply circuit unit 12.

  The computing unit 32 calculates a callable time indicating a time during which the call process can be performed (S305). This call possible time is calculated, for example, by using the amount of battery required for performing a call process for a predetermined time as a count, and dividing the remaining battery value acquired in S303 by this coefficient. This count may be a variable depending on the state, such as the distance from the base station.

  The computing unit 32 calculates a viewing battery remaining amount value indicating the amount of battery that can be used for the terrestrial digital broadcast reproduction process (S306). This viewing battery remaining amount value is calculated, for example, by subtracting the amount of battery used for the call processing for the callable time calculated in S305 from the remaining battery value acquired in S303.

  The computing unit 32 calculates a viewable time indicating a time during which the terrestrial digital broadcast reproduction process is possible (S307). The viewable time is calculated based on the viewing battery remaining amount value calculated in S306. The calculation unit 32 uses the amount of battery required for performing the terrestrial digital broadcast reproduction process for a predetermined time as a count, and for example, is calculated by dividing the viewing battery remaining value by this count. This count may be a variable depending on the state, such as the illuminance of the screen displayed on the liquid crystal display 22.

  The computing unit 32 compares the callable time calculated in S305 with the call time setting value set in S109, and determines whether or not the callable time is larger than the call time setting value (S309).

  When the callable time is longer than the call time set value (Yes in S309), the calculation unit 32 determines that the terrestrial digital broadcast reproduction process is possible, and can be viewed indicating that the reproduction (viewing) is possible. Information is notified to the battery remaining amount monitoring unit 31 (S311).

  When the callable time is smaller than the call time set value (No in S309), the calculation unit 32 determines that the terrestrial digital broadcast reproduction process is impossible and indicates that reproduction (viewing) is impossible. The information indicating that viewing is impossible is notified to the battery remaining amount monitoring unit 31 (S313).

  The battery remaining amount monitoring unit 31 determines whether or not digital terrestrial broadcasting can be viewed on the mobile phone 1 (S211). This is determined based on the viewable information or the unviewable information viewed through the calculation unit 32 in S311 or S313.

  When the viewable information is acquired from the calculation unit 32 (Yes in S211), it is determined that the terrestrial digital broadcast can be viewed, so the terrestrial digital broadcast is received and reproduced (S213). FIG. 6 shows a playback screen 50 displayed on the liquid crystal display 22 when the mobile phone 1 receives and plays back a terrestrial digital broadcast. The reproduction screen 50 includes a callable time display unit 51 that displays a callable time and a viewable time display unit 52 that displays a viewable time. The callable time display unit 51 displays “90 m” as the callable time, and the viewable time display unit 52 displays “120 m” as the viewable time. From these, it can be seen that the callable time is 90 minutes and the viewable time is 120 minutes.

  The main control unit 11 displays the viewable time calculated by the calculation unit 32 in S307 on the viewable time display unit 52 of the playback screen 50 (S215). Further, the main control unit 11 displays the callable time calculated by the calculation unit 32 in S305 on the callable time display unit 51 of the reproduction screen 50 (S217).

  When the unviewable information is acquired from the calculation unit 32 (No in S211), or when the battery remaining amount value is smaller than the specified battery remaining amount (No in S207), the battery remaining amount monitoring unit 31 is the main control unit 11. The main control unit 11 displays a warning on the liquid crystal display 22 (S219). At this time, a warning may be generated by vibrating or ringing the mobile phone 1 to alert the user.

  Further, the main control unit 11 displays a warning and prompts the user to determine whether or not to view the terrestrial digital broadcast (S221). When the user instructs viewing of the terrestrial digital broadcast (Yes in S221), the main control unit 11 receives and reproduces the terrestrial digital broadcast (S213). Further, the main control unit 11 displays the viewable time calculated by the calculation unit 32 in S307 (S215). The main control unit 11 displays the available call time calculated by the calculation unit 32 in S305 (S217).

  If the user has not instructed viewing of the terrestrial digital broadcast (No in S221), the main control unit 11 ends the process without receiving and reproducing the terrestrial digital broadcast. In step S221, the main control unit 11 prohibits reception and reproduction of the terrestrial digital broadcast without prompting the user to determine whether or not to view the terrestrial digital broadcast. good.

  As described above, the mobile phone 1 calculates the viewable time from the remaining battery power in consideration of the battery capacity that can be processed during a predetermined call time when the terrestrial digital broadcast reproduction process is started. Then, it is determined whether or not the terrestrial digital broadcast can be viewed. When the mobile phone 1 determines that viewing is impossible, the mobile phone 1 issues a warning to the user.

  The mobile phone 1 performs a battery remaining amount monitoring process even when receiving and playing back a terrestrial digital broadcast. The procedure of the battery remaining amount monitoring process at this time will be described based on the flowchart shown in FIG.

  When the mobile phone 1 receives and reproduces the terrestrial digital broadcast, the battery remaining amount monitoring unit 11 determines whether or not a certain time (for example, 60 seconds) has elapsed (S401). This fixed time may be a time previously stored in the storage unit 18 or a time input by the user via the operation key 21. When the predetermined time has not elapsed (No in S401), the battery remaining amount monitoring unit 11 stands by until the predetermined time elapses.

  When the predetermined time has elapsed (Yes in S401), the battery remaining amount monitoring unit 11 acquires the battery remaining amount value from the power supply circuit unit 12 (S403). Further, the battery remaining amount monitoring unit 11 acquires the battery remaining amount specified value from the storage unit 15 (S405).

  The battery remaining amount monitoring unit 11 determines whether or not the battery remaining amount value acquired in S403 is larger than the battery remaining amount specified value acquired in S405 (S407). When the battery remaining amount value is larger than the battery remaining amount prescribed value (S407), the call time determination process of S301 to S311 (or S313) is performed. Since this call time determination process has been described above, a description thereof will be omitted.

  The battery remaining amount monitoring unit 11 determines whether or not digital terrestrial broadcasting can be viewed on the mobile phone 1 (S411). This determination is made based on whether the viewable information is notified or the unviewable information is notified by the call time determination process of the calculation unit 32, as in S221.

  When the viewable information is notified from the calculation unit 32 (Yes in S411), it is determined that the terrestrial digital broadcast can be continuously viewed, and thus the main control unit 11 continues the reproduction of the terrestrial digital broadcast. The main control unit 11 displays the viewable time calculated by the calculation unit 32 in S307 on the viewable time display unit 52 of the reproduction screen 50 (S413). Further, the main control unit 11 displays the call time set value calculated by the calculation unit 32 in S305 on the callable time display unit 51 of the playback screen 50 (S415).

  FIG. 8 shows a playback screen 50 displayed on the liquid crystal display 22 when the mobile phone 1 receives and plays back a terrestrial digital broadcast. The callable time display unit 51 displays “90 m” as the callable time, and the viewable time display unit 52 displays “001 m” as the viewable time. With these displays, the user can recognize that the callable time is 90 minutes and the viewable time is 1 minute. At the time of the playback screen 50 shown in FIG. 6 (when terrestrial digital broadcast playback processing is started), the viewable time is 120 minutes, but the remaining battery level is reduced by the terrestrial digital broadcast playback processing. It can be seen that the viewable time is reduced to 1 minute at the time of the playback screen 50 shown in FIG.

  When the unviewable information is acquired from the calculation unit 32 (No in S411) or when the remaining battery level is smaller than the specified remaining battery level (No in S407), the remaining battery level monitoring unit 31 is the main control unit 11. The main control unit 11 displays a warning on the liquid crystal display 22 (S417). At this time, the main control unit 11 may generate a warning by vibrating or ringing the mobile phone 1 to call attention to the user. Alternatively, the user may be alerted by changing the display color or blinking of the viewable time display unit 52.

  In addition, the main control unit 11 displays a warning and prompts the user to determine whether or not to finish viewing the terrestrial digital broadcast (S419). If the user has not instructed the end of viewing of the terrestrial digital broadcast (No in S419), the main control unit 11 continues the reproduction of the terrestrial digital broadcast. Further, the main control unit 11 displays the viewable time calculated by the calculation unit 32 in S307 (S413). The main control unit 11 displays the available call time calculated by the calculation unit 32 in S305 (S415).

  When the user gives an instruction to end viewing of the terrestrial digital broadcast (No in S419), the main control unit 11 ends the reception and playback processing of the terrestrial digital broadcast (S421). In S419, the main control unit 11 prohibits the reception and reproduction of the terrestrial digital broadcast without prompting the user to determine whether or not to view the terrestrial digital broadcast. good.

  In this way, the mobile phone 1 is able to view from the remaining battery level in consideration of the amount of battery that can be processed during a predetermined call time every predetermined time when receiving and playing a terrestrial digital broadcast. By calculating the possible time, it is determined whether or not the terrestrial digital broadcast can be viewed. When the mobile phone 1 determines that viewing is impossible, the mobile phone 1 issues a warning to the user.

  Note that, as an embodiment of the mobile phone 1, the viewable time is calculated based on the viewing battery remaining amount that is the battery amount obtained by subtracting the call battery remaining amount that is the battery amount used for the call processing from the entire battery remaining amount. Although an example has been described, the present invention is not limited to this, and the viewable time may be calculated from the total remaining battery power and displayed.

  Moreover, although the example which ensures the telephone call battery remaining amount which is the battery amount for a telephone call process was demonstrated as embodiment of the mobile telephone 1, it is not restricted to this, Various application processes, such as a music, a game, wireless LAN communication, etc. You may make it ensure the battery amount for performing.

  When a warning is generated in S219, the characters and images displayed on the viewable time display unit 52 are displayed larger than usual, or the callable time display unit 51 and the viewable time display unit 52 are scrolled. (Telop) may be displayed. This scroll display also has an effect of preventing burning of the liquid crystal display 22. Alternatively, the processing of S215, S217, S413, and S415 may be performed only when the battery remaining amount value or the viewing battery remaining amount value is equal to or less than a predetermined value without performing the processing in general.

  Furthermore, when an alarm is generated in S219, an alarm sound may be generated via the earphone when the earphone is connected to the mobile phone 1.

  According to the mobile phone 1 of the present invention, when a moving image signal such as terrestrial digital broadcasting is received and the moving image is reproduced, the remaining battery level is monitored in consideration of the battery amount for performing the call processing for a predetermined time. By doing so, it is possible to always ensure the amount of battery required for call processing.

  In addition, according to the mobile phone 1 of the present invention, the battery remaining amount value is calculated and displayed from the battery remaining amount value, so that the user can determine the remaining battery amount. It becomes possible to recognize and adjust the viewing time of terrestrial digital broadcasting.

  Note that the process in step S306 is a viewing battery remaining amount calculation unit, the processes in steps S211 and S309 to S313 are viewing availability determination units, and the process in step S219 is a warning unit.

  Further, the process in step S307 is a viewable time calculating unit, the process in step S215 is a viewable time display process, the process in step S305 is a callable time calculating unit and a call battery remaining amount calculating unit, and step S217. This process is a callable time display means.

  The mobile phone has been described as an embodiment. However, the present invention is not limited to this, but a PHS (Personal Handyphone System), a PDA (Personal Digital Assistant), a portable video playback device, a personal computer, etc. The present invention can be applied to any information processing apparatus having a viewing function.

  Furthermore, in the embodiment of the present invention, the steps of the flowchart show an example of processing performed in time series in the order described, but parallel or individual execution is not necessarily performed in time series. The processing to be performed is also included.

1 is a system configuration diagram of a mobile phone according to the present invention. The flowchart which shows the procedure at the time of the mobile telephone which concerns on this invention performing call time setting value setting processing. The screen figure which shows the setting screen of call time setting value. The flowchart which shows the procedure at the time of the portable telephone which concerns on this invention performing battery remaining charge monitoring processing. The flowchart which shows the procedure at the time of the mobile telephone based on this invention performing call time determination processing. The screen figure which shows the reproduction | regeneration screen during the moving image reproduction | regeneration in the mobile telephone based on this invention. The flowchart which shows the procedure at the time of the portable telephone which concerns on this invention performing battery remaining charge monitoring processing. The screen figure which shows the reproduction | regeneration screen during the moving image reproduction | regeneration in the mobile telephone based on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cellular phone 11 Main control part 12 Power supply circuit part 13 Operation input control part 14 LCD control part 15 Storage part 16 Voice codec 17 Modulation / demodulation circuit part 18 Television control part 19 Demultiplexing part 20 Image decoder 21 Operation key 22 Liquid crystal display 23 Microphone 24 Speaker 25 Transmission / Reception Circuit Unit 26 Antenna 30 Tuner 31 Battery Level Monitoring Unit 32 Calculation Unit 33 Antenna 40 Setting Screen 50 Playback Screen 51 Callable Time Display Unit 52 Viewable Time Display Unit

Claims (5)

A mobile phone for playing moving images,
Viewing battery remaining amount calculating means for calculating a viewing battery remaining amount value necessary for moving image playback processing based on a battery remaining amount value and a battery amount necessary for call processing;
Viewing permission / inhibition determining means for determining whether or not moving image reproduction processing is possible based on the viewing battery remaining charge value calculated by the viewing battery remaining charge calculating means;
Warning means for generating a warning when it is determined by the viewability determination means that moving image reproduction processing is impossible;
A mobile phone comprising: Viewable time calculating means for calculating a viewable time that is a time during which a moving image reproduction process is possible based on the viewing battery remaining charge value calculated by the viewing battery remaining charge calculating means;
The mobile phone according to claim 1, further comprising: a viewable time display unit that displays the viewable time calculated by the viewable time calculation unit. A callable time calculating means for calculating a callable time based on a remaining battery level;
The mobile phone according to claim 2, further comprising: a callable time display means for displaying the callable time calculated by the callable time calculation means.   The mobile phone according to claim 1, further comprising a call battery remaining amount calculation unit that calculates a battery amount required for the call processing based on an input call time.   2. The mobile phone according to claim 1, wherein the warning unit prohibits the reproduction of a moving image when the viewing / non-viewing determination unit determines that the moving image reproduction process is impossible.

Images