JP4149391B2 - Portable wireless terminal, display control method for the terminal, display control program, and recording medium recording the program - Google Patents

Description

  The present invention relates to a display control method for a portable wireless terminal typified by a mobile phone, a display control program, and a recording medium on which the program is recorded.

  Portable wireless terminals used for cellular phone systems, PHS (Personal Handy-phone System), wireless LANs, and the like are currently widely used because of their convenience of making calls and communications without connecting cables. On the other hand, there are concerns about adverse effects on various electronic devices caused by radio waves transmitted from portable wireless terminals.

  In particular, since a mobile phone has a larger transmission output than a PHS terminal or a wireless LAN terminal, for example, it is recommended that the distance between the mobile phone and the implantable cardiac pacemaker be 22 cm or more. Further, in some or front portions of hospitals, airplanes, trains, etc., it is desired to turn off the power of the mobile phone so as not to transmit radio waves.

  On the other hand, since the PHS terminal has a smaller transmission output than the mobile phone, it is considered that the PHS terminal has almost no influence on the inspection equipment and treatment equipment in the hospital. For this reason, an increasing number of hospitals perform communication between staff members using PHS terminals. In addition, portable wireless terminals used in wireless LANs such as IEEE802.12b, Bluetooth (registered trademark), UWB (Ultra Wide Band), etc. have a smaller transmission output than mobile phones, so in hospitals, airplanes, trains It is expected that it will be used in the future.

  However, the mobile phone and the PHS terminal are similar in appearance, and it is difficult for people around the terminal to determine which terminal is the terminal. In addition, a portable PC (Personal Computer) such as a PDA (Personal Digital Assistant) is provided with a function capable of wireless communication with various wireless communication systems such as a mobile phone system, a PHS, and a wireless LAN. . For this reason, when the portable PC performs wireless communication, it is difficult for people around the terminal to determine which wireless communication system is used.

  A portable wireless terminal also has a function that operates without outputting radio waves. Examples of such functions include browsing received mail, browsing electronic phone books, viewing recorded music, and running computer games. In particular, along with the recent improvements in performance and functionality of portable wireless terminals, portable wireless terminals with cameras are becoming popular, and portable wireless terminals with a built-in TV tuner are becoming more popular. There is a tendency to further enhance the functions.

  For this reason, many recent portable wireless terminals have a radio wave transmission stop function for stopping only radio wave transmission. If this radio wave transmission stop function is used, radio waves are not transmitted even in hospitals, trains, etc., so that portable radio terminals can be used without affecting various electronic devices. However, even in this case, it is difficult for people around the terminal to determine whether or not the transmission of radio waves is stopped.

With respect to this problem, in the portable wireless terminal described in Patent Document 1 below, the lighting color of the LED provided at the end of the terminal housing is periodically changed during the operation of the transmission restriction function that restricts the transmission of radio waves. To change. Thereby, it is possible to notify the surrounding people that the transmission restriction function is operating and the transmission of radio waves is restricted.
JP 2002-190853 A (released July 5, 2002)

  However, in the portable wireless terminal described above, if the LED lighting color is changed periodically, for those who do not know that the transmission restriction function is operating, it is still unknown whether or not the output of radio waves is stopped. Absent.

  In addition, the state of whether or not the output of radio waves is stopped is displayed on the display of the mobile phone terminal, but since such a status display can be reported to the user of the portable wireless terminal, It is difficult to see from the surrounding people.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a portable wireless terminal that can notify a person around the terminal user that transmission of radio waves is being restricted. It is in.

In order to solve the above problems, a portable wireless terminal according to the present invention is a portable wireless terminal including wireless communication means for performing wireless communication by transmitting and receiving electromagnetic waves. Second display means having a display direction different from the means, transmission restriction means for restricting transmission of the electromagnetic wave, the transmission restriction means for restricting transmission of the electromagnetic wave, and the first display means performing display. Display control means for controlling the transmission of the electromagnetic wave to be displayed on the second display means, and the wireless communication means may perform a plurality of types of wireless communication. In addition to restricting the transmission of electromagnetic waves related to all wireless communication methods , the transmission restriction means restricts the transmission of electromagnetic waves for at least one wireless communication method, while controlling the transmission of electromagnetic waves for at least one method. Also Ri also der allowing transmission of the electromagnetic wave for wireless communication of a small type of signal output, the display control means, a communication scheme in which the transmission regulation means regulates the transmission of electromagnetic waves, the second The display means is further controlled to display.

  Here, regulating the transmission of electromagnetic waves means stopping the transmission of electromagnetic waves or reducing the transmission output of electromagnetic waves to a predetermined level.

  According to the above configuration, when the transmission restricting means restricts the transmission of electromagnetic waves and the first display means performs display, the fact that the transmission of electromagnetic waves is restricted by the control of the display control means is described. 2 display means displays. By the way, since the display directions of the first display means and the second display means are different, when the terminal user is viewing the display content of the first display means, a person other than the terminal user is the second. The display contents of the display means can be viewed. Therefore, when the terminal user is performing any operation such as composing mail while referring to the display content of the first display means during the restriction of electromagnetic wave transmission, the person other than the terminal user By looking at the display content of the display means, it is possible to know that the transmission of electromagnetic waves in the mobile phone terminal is restricted.

By the way, the greater the transmission output, the higher the possibility that electromagnetic waves will affect various electronic devices. Conversely, the smaller the transmission output, the lower the possibility that electromagnetic waves will affect various electronic devices. Therefore, it is desirable that the transmission output of the electromagnetic wave whose transmission is restricted by the transmission restricting means is not less than a predetermined value.
In addition, when there is information to notify people around the terminal user, such as the type of communication method when wireless communication is performed, the information to be notified is sent to the terminal via the second display means. It may be communicated to people around the user.

  Moreover, the portable wireless terminal according to the present invention further includes an operation unit that is operated by a terminal user on the side on which the first display unit performs display in the above configuration, and the display control unit includes: The transmission restricting means restricts the transmission of the electromagnetic wave, the first display means is displaying, and the operation is performed by the operating means, the transmission of the electromagnetic wave is restricted. Is controlled to be displayed on the second display means.

  Generally, when a terminal user performs an operation with an operation means, the terminal user often exists in the display direction of the first display means. For this reason, when the operation is performed by the operation means, there are many people other than the terminal user in the display direction of the second display means. Therefore, a person other than the terminal user can surely know that the transmission of electromagnetic waves in the mobile phone terminal is restricted by looking at the display content of the second display means.

  The display control means is preferably controlled to blink on the second display means. By blinking the display, not only the attention of surrounding people can be drawn, but also the power consumption of a light emitting element such as a backlight can be suppressed.

  Further, it is not necessary to dare to display that the transmission of electromagnetic waves in the mobile phone terminal is restricted in places other than hospitals, airplanes, and trains, or places that are not congested. Therefore, it is desirable to further include display setting means for setting whether or not to display the second display means under the control of the display control means. As a result, it is possible to prevent an increase in power consumption due to display that does not need to be performed.

  In addition, when there is no person other than the terminal user nearby, it is useless to display that the transmission of electromagnetic waves in the mobile phone terminal is restricted. For this reason, it further comprises human body detecting means for detecting whether or not a person other than the terminal user is nearby, and the display control means detects the person other than the terminal user. If not, it is desirable to control the display of the second display means to stop. Thereby, an increase in power consumption due to unnecessary display can be prevented. As the human body detection means, various sensors such as an infrared sensor and a radar can be used, but it is desirable to have directivity in order to detect a person other than the terminal user.

  Further, in the portable wireless terminal according to the present invention, in the configuration described above, the second display means includes a sub-screen that displays that the transmission of electromagnetic waves in the cellular phone terminal is restricted. The display direction is opposite to that of the first display means.

  By the way, in mobile phones currently on the market, a main screen is often provided on one surface of the casing, and a sub-screen is often provided on the opposite surface. Therefore, according to the above configuration, it is possible to display on the sub-screen that the transmission of electromagnetic waves in the mobile phone terminal is restricted, and to change the display control to the presently available mobile phone. The invention can be applied.

  Note that the sub screen is not always in a position where it can be seen by people. For example, if the sub screen is tilted in a horizontal direction, it will be difficult for people near the terminal user to see, and electromagnetic waves will be transmitted from the mobile phone terminal. It is useless to display on the sub-screen that the content is regulated.

  Therefore, the image display device further includes an inclination detection means for detecting an inclination angle from a horizontal plane with respect to the display surface of the second display means, and the display control means has an inclination angle detected by the inclination detection means equal to or less than a predetermined angle. In that case, it is desirable to control the display of the second display means to stop. Thereby, an increase in power consumption due to unnecessary display can be prevented.

  In the portable wireless terminal according to the present invention, in the above configuration, the first and second display means perform display from the same display surface, and the first display means includes the display surface. The second display means displays in an oblique direction from the display surface.

  As an example of realizing the above configuration, the image area of the display screen is cut vertically and divided into strip-shaped small areas, and the divided small areas are alternately displayed as front display areas and diagonal display areas. On the other hand, a plurality of slits are provided on the front side or the back side of the display screen so that the light from the front display area travels in the front direction, and the light from the diagonal display area tilts from the front direction to the horizontal direction. It is conceivable to arrange the slits so as to proceed in the direction.

  According to the above configuration, the people present next to the terminal user existing in front of the portable wireless terminal are restricted from transmitting electromagnetic waves in the cellular phone terminal by looking at the display content of the second display means. I can know that.

Further, the display control method in the portable wireless terminal according to the present invention includes a wireless communication means capable of performing a plurality of types of wireless communication by transmitting and receiving electromagnetic waves, a first display means, and the first display. a second display means display a direction different from the unit, in addition to regulating the transmission of the electromagnetic wave in accordance with any wireless communication system, the regulation while restricting the transmission of the electromagnetic wave for wireless communication of at least one type A display control method in a portable wireless terminal comprising transmission restriction means capable of permitting transmission of electromagnetic waves for wireless communication of a method having a smaller transmission output than the method according to claim 1, wherein the transmission restriction means is the above When the transmission of electromagnetic waves is regulated and the first display means is displaying, the fact that the transmission of electromagnetic waves is regulated and the wireless communication system that regulates the transmission of electromagnetic waves are described above. 2 It is characterized by controlling so as to display on the display means.

  According to the above method, when the transmission restricting means restricts the transmission of electromagnetic waves and the first display means performs display, the second display means displays that the transmission of electromagnetic waves is restricted. Display control is performed as follows. By the way, since the display directions of the first display means and the second display means are different, when the terminal user is viewing the display content of the first display means, a person other than the terminal user is the second. The display contents of the display means can be viewed. Therefore, when the terminal user is performing any operation such as composing mail while referring to the display content of the first display means during the restriction of electromagnetic wave transmission, the person other than the terminal user By looking at the display content of the display means, it is possible to know that the transmission of electromagnetic waves in the mobile phone terminal is restricted.

  The display control means in the portable wireless terminal can be executed on a computer by a display control program. Furthermore, the display control program can be executed on an arbitrary computer by storing the display control program in a computer-readable recording medium.

  As described above, in the portable wireless terminal according to the present invention, when the transmission restriction unit restricts the transmission of electromagnetic waves and the first display unit performs display, the display control unit controls the electromagnetic wave. Since the second display means displays that the transmission is restricted, while the electromagnetic wave transmission is restricted, the terminal user refers to the display content of the first display means and performs some operation such as composing mail. In the case where the user is performing, it is possible for a person other than the terminal user to see that the transmission of electromagnetic waves in the mobile phone terminal is restricted by looking at the display content of the second display means.

[Embodiment 1]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the following, the case where the present invention is applied to a mobile phone suitable as a portable wireless terminal will be described. However, the present invention is not limited thereto, and any device having a wireless communication function such as PHS, PDA, etc. It can be applied to any portable terminal.

  FIG. 1 shows the appearance of a mobile phone 1 according to an embodiment of the present invention. The mobile phone 1 according to the present embodiment is a so-called clamshell type, and is shown in an open state in FIG. FIG. 5A shows a portion that becomes an inner side when the cellular phone 1 is closed, and a side that is mainly used by a user when the cellular phone 1 is opened. Therefore, in this application, the side shown in FIG. FIG. 5B shows a portion that is on the outside when the cellular phone 1 is closed, and is on the opposite side to the side in FIG. 5A when the cellular phone 1 is opened. Therefore, in the present application, the side shown in FIG.

  As shown in FIG. 1, the mobile phone 1 includes a main body 2 and a lid 3, and the main body 2 and the lid 3 are connected in a hinge shape. The lid 3 is provided with a main screen 4 on the front side and a sub screen 5 on the back side. Although not shown in the figure, an antenna is provided in the lid 3.

  The main body 2 is provided with a main operation button group 6 on the front side. The main operation button group 66 includes a function button group 7 for performing various settings and function switching in the mobile phone 1 and an input button group 8 for inputting symbols such as numbers and letters. Specifically, the function button group 7 includes a power button for switching on / off the power of the mobile phone, a camera button for starting a shooting mode, a mail button for starting a mail mode, and moving a selection target in the vertical and horizontal directions. For example, and a determination button which is arranged at the center of the cross button and determines various selections. The input button group 8 is a numeric keypad.

  In general, the user of the mobile phone 1 performs various operations while referring to the main screen 4. The sub-screen 5 is used to provide the user with various information such as a call, incoming mail, and time when the cellular phone 1 is closed. For this reason, in general, the display of the sub screen 5 starts when the mobile phone 1 is closed, and ends when the mobile phone 1 is opened.

  On the other hand, in this embodiment, as shown in FIG. 1, even when the cellular phone 1 is opened, when the transmission of radio waves is restricted, such as when the transmission of radio waves is stopped, This is displayed on the sub-screen 5.

  Thereby, when the terminal user is operating the mobile phone 1 while referring to the main screen 4, people on the opposite side of the terminal user with respect to the mobile phone 1 see the display of the sub screen 5. Thus, it is possible to know that the transmission of radio waves in the mobile phone 1 is restricted.

  In the state in which the cellular phone 1 is closed, the sub screen 5 has the upper side on the shaft side of the lid 3 and the lower side on the end side. On the other hand, in the state where the cellular phone 1 is opened, as shown in FIG. 1B, the sub screen 5 has the end side of the lid 3 on the upper side and the shaft side on the lower side. Therefore, in this embodiment, it is necessary to change the vertical direction of the sub screen 5 according to the open / closed state of the mobile phone 1.

  Next, a detailed configuration of the mobile phone 1 will be described with reference to FIGS. FIG. 2 shows a schematic configuration of the mobile phone 1. The cellular phone 1 includes a first antenna 10, a wireless processing unit 11, an audio processing unit 12, an audio input unit 13, an audio output unit 14, a data processing unit 15, an operation unit 16, a storage unit 17, a main display unit 18, and a sub display. The unit 19 includes a second antenna 20, a tuner unit 21, a signal processing unit 22, a sensor unit 23, a power supply unit 24, and a control unit 25.

  The first antenna 10 is for sending radio waves to the outside and receiving radio waves from the outside. Specifically, the first antenna 10 is for transmitting and receiving radio waves for mobile phones in the 800 MHz band or 1.5 GHz band.

  The radio processing unit 11 converts the data received from the audio processing unit 12 or the data processing unit 15 into a format suitable for radio transmission, transmits the converted radio signal to the outside via the first antenna 10, and from the outside The radio signal received via the first antenna 10 is converted into the original format, and the converted data is transmitted to the voice processing unit 12 or the data processing unit 15. Specifically, the wireless processing unit 11 performs channel codec processing, baseband signal processing, data modulation / demodulation processing, RF (Radio Frequency) processing, and the like.

  The audio processing unit 12 converts the audio signal from the audio input unit 13 into predetermined audio data and transmits it to the radio processing unit 11, and converts the audio data from the radio processing unit 11 into an audio signal and converts it into an audio output unit. 14 is transmitted. Specifically, the audio processing unit 12 includes an A / D converter, a D / A converter, an amplifier, and an audio codec circuit.

  The sound input unit 13 converts sound waves input from the outside into sound signals that are electrical signals and transmits the sound signals to the sound processing unit 12. Specifically, the voice input unit 13 includes a microphone.

  The audio output unit 14 converts the audio signal from the audio processing unit 12 into a sound wave and outputs it to the outside. Specifically, the audio output unit 14 includes a speaker and an earphone. Note that the mobile phone 1 uses an earphone when making a call and a speaker when notifying an incoming call.

  In the case of a telephone, it is desirable that the user's voice input to the voice input unit 13 is heard from the voice output unit 14. For this reason, it is desirable that the audio processing unit 12 adjusts the audio signal from the audio input unit 13 to a predetermined volume level and then transmits it to the audio output unit 14.

  The data processing unit 15 encodes data from the control unit 25 into data of a predetermined format and transmits the data to the wireless processing unit 11, and also decodes data from the wireless processing unit 11 and transmits the data to the control unit 25. .

  The operation unit 16 creates operation data and transmits it to the control unit 25 when a user operates an input device such as the main operation button group 6 provided on the surface of the mobile phone 1. Examples of the input device include a touch panel in addition to the button switch.

  The storage unit 17 stores various data and programs. As the storage unit 20, for example, a ROM (Read Only Memory) that is a read-only semiconductor memory that stores fixed data such as a program necessary for operation of the control unit 25 and communication control data, barcode recognition and communication, and the like. RAM (Random Access Memory) as a so-called working memory for temporarily storing data related to data, data used for calculation, calculation results, and the like.

  The main display unit 18 and the sub display unit 19 receive image data from the control unit 25 and display an image based on the received image data. Specifically, the main display unit 18 and the sub display unit 19 include display elements such as a PDP (Plasma Display Panel), an LCD (Liquid Crystal Display), and an EL (Electroluminescence) display, and display elements based on received image data. And a driver circuit for driving the.

  The second antenna 20 is for receiving radio waves from the outside. Specifically, the second antenna 20 is for receiving radio waves for TV (television) in a VHF (very high frequency) band.

  The tuner unit 21 selects and receives TV radio waves of a desired channel from the outside via the second antenna 20, and transmits the received signal to the signal processing unit 22. The signal processing unit 22 converts the signal from the tuner unit 21 into video data and audio data in a predetermined format, and transmits the converted video data and audio data to the control unit 25. The converted video data is transmitted to the main display unit 18 via the control unit 25, whereby the TV video is displayed on the main screen 4. Further, the converted audio data is transmitted to the audio output unit via the control unit 25 and the audio processing unit 12, whereby the TV audio is output from the speaker.

  The sensor unit 23 performs human body detection for detecting whether or not there is a person other than the user around the mobile phone 1 and tilt detection for detecting the tilt angle of the lid 3 of the mobile phone 1 with respect to the horizontal plane. . As a sensor used for human body detection, a known sensor such as a sensor for detecting infrared rays emitted from the human body can be used. As a sensor used for tilt detection, a known sensor such as a sensor that detects the direction of gravity acting on an object can be used. In the case of human body detection, in order to remove the user from the detection target, it is desirable to detect whether or not there is a person on the back side using a directional sensor.

  The power supply unit 24 supplies appropriate power to the above-described units, and is configured by a rechargeable secondary battery such as a lithium ion battery, for example.

  The control unit 25 comprehensively controls various components in the mobile phone 1. The function of the control part 25 is implement | achieved when CPU (Central Processing Unit) runs the program memorize | stored in memory | storage devices, such as RAM and flash memory, for example.

  Next, details of the control unit 25 in the mobile phone 1 will be described with reference to FIG. In the following description, among various configurations included in the control unit 25, only the configuration related to radio wave transmission restriction will be described, and the description of other configurations will be omitted.

  By the way, the possibility that a radio wave has some influence on an electronic device such as a medical device or an aircraft device depends on the transmission output of the radio wave. That is, the possibility becomes high when the transmission output is large, and the possibility becomes low when the transmission output is small.

  Therefore, not only stop transmission of all radio waves, but also stop transmission of radio waves with a large transmission output, such as mobile phone radio waves (about 1 W), wireless LAN radio waves (about 100 mW), PHS Allow transmission of radio waves with low transmission power, such as radio waves for radio (about 10 mW), radio waves for Bluetooth (registered trademark) (about 1 mW), radio waves for UWB (Ultra Wide Band) (about 100 μW), etc. In addition, there may be a case where transmission of radio waves of a specific communication method is stopped.

  Therefore, in the present application, when the transmission of radio waves is restricted, the case where transmission of all radio waves is stopped and the case where transmission of specific radio waves is stopped are included. Further, the restriction of radio wave transmission includes the case where radio wave transmission output is limited to a predetermined value or less.

  FIG. 3 shows a schematic configuration of the control unit 25. As illustrated, the control unit 25 includes a transmission restriction operation detection unit 30, a radio wave transmission control unit 31, a human body detection unit 32, an inclination detection unit 33, and a transmission restriction display control unit 34.

  The transmission restriction operation detection unit 30 detects whether or not the operation unit 16 has performed an operation for restricting transmission of radio waves or an operation for canceling the operation, and notifies the radio wave transmission control unit 31 and the transmission restriction display control unit 34 to that effect. Notice.

  The radio wave transmission control unit 31 controls the wireless processing unit 11 based on the notification from the transmission restriction operation detection unit 30. That is, when the transmission restriction operation detection unit 30 detects an operation for restricting the transmission of radio waves, the radio wave transmission control unit 31 controls the wireless processing unit 11 to limit the transmission of radio waves. When stopping the transmission of radio waves, the radio wave transmission control unit 31 may control the power supply unit 24 to stop the power supply to the wireless processing unit 11.

  When the transmission restriction operation detection unit 30 detects an operation for releasing the restriction on the transmission of radio waves, the radio wave transmission control unit 31 controls the wireless processing unit 11 to release the restriction on the transmission of radio waves. When restarting the transmission of the stopped radio wave, the radio wave transmission control unit 31 may restart the power supply to the wireless processing unit 11 by controlling the power supply unit 24.

  Based on the detection signal from the sensor unit 23, the human body detection unit 32 detects whether or not a person other than the user exists in the vicinity, and notifies the transmission restriction display control unit 34 to that effect. Further, the tilt detection unit 32 detects the tilt angle of the lid 3 of the mobile phone 1 based on the detection signal from the sensor unit 23, and notifies the transmission restriction display control unit 34 of the detected tilt angle.

  The transmission restriction display control unit 34 controls the sub display unit 19 based on notifications from the transmission restriction operation detection unit 30, the human body detection unit 32, and the inclination detection unit 32. That is, when the transmission restriction operation detection unit 30 detects an operation for restricting the transmission of radio waves, the transmission restriction display control unit 34 controls the sub display unit 19 to indicate that the transmission of radio waves is restricted. To display.

  At this time, if the human body detection unit 32 detects that no person other than the user exists in the surroundings, the transmission restriction display control unit 34 controls the sub display unit 19 to stop the display of the sub screen 5. On the other hand, if the sub screen 5 is not in a position where the person can see it based on the tilt angle detected by the tilt detection unit 33, the transmission restriction display control unit 34 controls the sub display unit 19 to display the sub screen 5. Cancel the display. When the transmission restriction operation detection unit 30 detects an operation for releasing the restriction on the transmission of radio waves, the transmission restriction display control unit 34 controls the sub display unit 19 to stop displaying the sub screen 5.

  A processing operation in the mobile phone 1 having the above configuration will be described with reference to FIG. FIG. 4 shows a processing operation performed by the control unit 25 when the user of the mobile phone 1 performs an operation of restricting transmission of radio waves.

  First, it waits until the transmission restriction operation detection unit 30 detects that the operation unit 16 has performed an operation for restricting the transmission of radio waves (step S10 (hereinafter may be abbreviated as “S10”). The same applies to.)). When the transmission restriction operation detection unit 30 detects, the radio wave transmission control unit 31 controls the radio processing unit 11 to limit radio wave transmission (S11).

  Next, the human body detection unit 32 detects whether or not there is a person around based on the signal from the sensor unit 23 (S12). If there is no person around (NO in S12), even if it is displayed on sub-screen 5 that the transmission of radio waves is restricted, nobody sees it, which is useless. Therefore, in this case, the transmission restriction display control unit 34 controls the sub display unit 19 to stop displaying the sub screen 5 (S15). Thereby, an increase in power consumption due to the display of the sub screen 5 can be prevented.

  On the other hand, if there is a person around (YES in S12), tilt detection unit 33 detects whether sub screen 5 is in a position where it can be seen by a person based on a signal from sensor unit 23. (S13). If sub-screen 5 is not in a position where it can be seen by humans (NO in S13), even if it is displayed on sub-screen 5 that the transmission of radio waves is restricted, no one can see it, which is useless. Therefore, in this case, the transmission restriction display control unit 34 controls the sub display unit 19 to stop displaying the sub screen 5 (S15). Thereby, an increase in power consumption due to the display of the sub screen 5 can be prevented.

  On the other hand, if the sub screen 5 is in a position where it can be seen by a person (YES in S13), the transmission restriction display control unit 34 controls the sub display unit 19 to indicate that the transmission of radio waves is restricted. It blinks on the screen 5 (S14). Thereby, it is possible to notify people who can see the sub screen 5 that the mobile phone 1 restricts the transmission of radio waves.

  In addition, by making the display of the sub screen 5 blinking, it is possible to call attention of surrounding people. Furthermore, since the time during which a light emitting element such as a backlight emits light can be reduced, an increase in power consumption due to display of the sub screen 5 can be suppressed.

  After step S14 or step S15, the transmission restriction operation detection unit 30 detects whether or not an operation for canceling the restriction of radio wave transmission has been performed by the operation unit 16 (S16). If the canceling operation has not been performed (NO in S16), the process returns to step S12 and the above processing operation is repeated. On the other hand, if an operation to cancel is performed (YES in S16), transmission limit display control unit 34 controls sub display unit 19 to stop display of sub screen 5 (S17), and radio wave transmission control. The unit 31 controls the wireless processing unit 11 to release the restriction on the transmission of radio waves (S18). Thereafter, the processing operation is terminated.

[Embodiment 2]
Next, another embodiment of the present invention will be described with reference to FIGS. The mobile phone 1 of the present embodiment is different from the mobile phone 1 shown in FIGS. 1 to 4 in the configuration of the control unit, and the other configurations are the same. In addition, the same code | symbol is attached | subjected to the structure which has the function similar to the structure demonstrated in the said embodiment, and the description is abbreviate | omitted.

  In the present embodiment, a TV broadcast is viewed on the mobile phone 1. In this case, since the power consumption required for viewing TV broadcasts is large, it is desirable to reduce or eliminate the power consumption of sections unrelated to TV broadcast viewing. Therefore, the control unit 25 of the mobile phone 1 according to the present embodiment performs a process of stopping the transmission of radio waves when viewing a TV broadcast.

  FIG. 5 shows a schematic configuration of the control unit 25 in the present embodiment. As illustrated, the control unit 25 includes a human body detection unit 32, an inclination detection unit 33, a TV viewing operation detection unit 40, a TV reception availability determination unit 41, a radio wave transmission stop control unit 42, and a transmission stop display control unit 43. It is a configuration.

  The TV viewing operation detection unit 40 detects whether or not the TV viewing operation has been performed by the operation unit 16, and notifies the TV reception availability determination unit 41 to that effect. Further, the TV viewing operation detection unit 40 detects whether or not the TV viewing cancellation operation has been performed by the operation unit 16, and accordingly, the TV reception availability determination unit 41, the radio wave transmission stop control unit 42, and the transmission stop display control. Notify the unit 43.

  When the TV viewing operation detection unit 40 detects a TV viewing operation, the TV reception availability determination unit 41 determines whether a TV broadcast can be received based on the TV video signal and the TV audio signal received from the signal processing unit 22. Determine. When reception of TV broadcast is impossible due to poor reception of TV radio waves, the main display unit 18 is controlled to display an error message on the main screen 4.

  On the other hand, when the TV broadcast can be received, the radio wave transmission stop control unit 42 and the transmission stop display control unit 43 are notified of that. The TV reception availability determination unit 41 transmits a TV video signal to the main display unit 18 to display the TV video on the main screen 4, and transmits a TV audio signal to the audio processing unit 12 to transmit the TV video signal from the audio output unit 14. TV sound is output. Then, when the TV viewing operation detection unit 40 detects the TV viewing release operation, the TV reception availability determination unit 41 stops the display of the TV video and the output of the TV sound.

  The radio wave transmission stop control unit 42 controls the wireless processing unit 11 based on the notification from the TV viewing operation detection unit 40 or the TV reception availability determination unit 41. That is, when the TV reception availability determination unit 41 determines that the TV broadcast can be received, the radio wave transmission stop control unit 42 controls the radio processing unit 11 to stop the radio wave transmission. At this time, the radio wave transmission stop control unit 42 may control the power supply unit 24 to stop the power supply to the wireless processing unit 11.

  When the TV viewing operation detection unit 40 detects a TV viewing release operation, the radio wave transmission stop control unit 42 controls the wireless processing unit 11 to resume radio wave transmission. At this time, the radio wave transmission stop control unit 42 may restart the power supply to the wireless processing unit 11 by controlling the power supply unit 24.

  The transmission stop display control unit 43 controls the sub display unit 19 based on notifications from the TV viewing operation detection unit 40, the TV reception availability determination unit 41, the human body detection unit 32, and the tilt detection unit 32. That is, when the TV reception availability determination unit 41 determines that the TV broadcast can be received, the transmission stop display control unit 43 controls the sub display unit 19 to indicate that the transmission of radio waves is stopped. 5 is displayed.

  At this time, when the human body detection unit 32 detects that no person other than the user exists in the surroundings, the transmission stop display control unit 43 controls the sub display unit 19 to stop the display of the sub screen 5. On the other hand, if the sub screen 5 is not at a position where a person can see based on the tilt angle detected by the tilt detection unit 33, the transmission stop display control unit 43 controls the sub display unit 19 to display the sub screen 5. Cancel the display. When the TV viewing operation detection unit 40 detects the TV viewing release operation, the transmission stop display control unit 43 controls the sub display unit 19 to stop displaying the sub screen 5.

  A processing operation in the mobile phone 1 having the above configuration will be described with reference to FIG. FIG. 6 shows a processing operation performed by the control unit 25 when the user of the mobile phone 1 performs an operation of viewing a TV broadcast.

  First, it waits until the TV viewing operation detection unit 40 detects that the operation unit 16 has performed an operation of viewing a TV broadcast (S20). When the TV viewing operation detection unit 40 detects this operation, the TV reception availability determination unit 41 determines whether or not a TV broadcast can be received (S21). When it is determined that the TV broadcast cannot be received (NO in S21), the TV reception availability determination unit 41 controls the main display unit 18 to display an error message on the main screen 4 (S22), and then performs the processing. finish. On the other hand, when it is determined that the TV broadcast can be received (YES in S21), the radio wave transmission stop control unit 42 controls the wireless processing unit 11 to stop the transmission of the radio wave (S23) and determines whether or not the TV can be received. Under the control of the unit 41, TV video is displayed on the main screen 4 and TV audio is output from the audio output unit 14 (S24).

  Next, as in step S12, the human body detection unit 32 detects whether there is a person around based on the signal from the sensor unit 23 (S25). If there is no person around (NO in S25), the transmission stop display control unit 43 controls the sub display unit 19 to stop the display of the sub screen 5 (S28) as in step S15. Thereby, an increase in power consumption due to the display of the sub screen 5 can be prevented.

  On the other hand, if there is a person around (YES in S26), the tilt detection unit 33 is positioned at a position where the sub screen 5 can be seen by the person based on the signal from the sensor unit 23 as in step S13. It is detected whether or not there is (S26). If sub screen 5 is not in a position where it can be seen by humans (NO in S26), transmission stop display control unit 43 controls sub display unit 19 to display sub screen 5 in the same manner as in step S15. Cancel (S28). Thereby, an increase in power consumption due to the display of the sub screen 5 can be prevented.

  On the other hand, when sub screen 5 is in a position where it can be seen by a person (YES in S26), transmission stop display control unit 43 controls sub display unit 19 to indicate that transmission of radio waves is stopped. It blinks on the screen 5 (S27). As a result, it is possible to notify people who can see the sub screen 5 that the mobile phone 1 has stopped transmitting radio waves.

  In addition, by making the display of the sub screen 5 blinking, it is possible to call attention of surrounding people. Furthermore, since the time during which a light emitting element such as a backlight emits light can be reduced, an increase in power consumption due to display of the sub screen 5 can be suppressed.

  After step S27 or step S28, the TV viewing operation detection unit 40 detects whether or not a TV viewing release operation has been performed by the operation unit 16 (S29). If the release operation has not been performed (NO in S29), the process returns to step S24 and the above processing operation is repeated.

  On the other hand, when the release operation is performed (YES in S29), the TV image display and the TV sound output are stopped by the control of the TV reception availability determination unit 41 (S30), and the transmission stop display control unit 43 controls the sub display unit 19 to stop the display of the sub screen 5 (S31), and the radio wave transmission stop control unit 42 controls the radio processing unit 11 to resume transmission of radio waves (S32). Thereafter, the processing operation is terminated.

  As described above, the cellular phone 1 according to the present embodiment automatically stops the transmission of radio waves when the user selects viewing of TV broadcasting and viewing of TV broadcasting is possible. The power consumption required for transmission can be turned to watch TV broadcasts. In addition, while the terminal user is watching TV broadcast, people on the opposite side of the terminal user from the mobile phone 1 see the display on the sub screen 5 to stop the transmission of radio waves in the mobile phone 1. I can know that.

[Embodiment 3]
Next, still another embodiment of the present invention will be described with reference to FIGS. Compared with the mobile phone 1 shown in FIGS. 1 to 4, the mobile phone 1 of the present embodiment is different in that the transmission of radio waves is displayed in an oblique direction from the main screen, and the other configurations are the same. is there. In addition, the same code | symbol is attached | subjected to the structure which has the function similar to the structure demonstrated in the said embodiment, and the description is abbreviate | omitted.

  7 and 8 schematically show a structure in which the main display unit 50 according to the present embodiment displays two images in the front direction and the oblique direction, respectively. The main display unit 50 includes a backlight (not shown), an image display unit 51, and a slit display unit 52 from the back side (upper side in FIG. 7) to the front side. The main display unit 50 of the present embodiment includes a normal mode for displaying one image and a dual mode for displaying two images.

  The image display unit 51 functions as a light valve for displaying an image. The slit display portion 52 is entirely transparent in the normal mode, but in the dual mode, an opaque portion is formed in a slit shape in the column direction. As the image display unit 51 and the slit display unit 52, for example, an LCD is used.

  FIG. 8 shows a state of pixels driven by the image display unit 51 in the dual mode. As shown in the figure, in the dual mode, the image area of the image display unit 51 is cut along the column direction and divided into strip-shaped small areas, and the divided small areas are alternately used for front display. It becomes a region and an oblique display region. That is, the small area indicated by the dot portion in FIG. 8 becomes the front display area, and the small area indicated by the hatched area becomes the oblique display area. The image display unit 51 is driven so that the front image 53 is displayed in the front display area, and the oblique image 54 is displayed in the oblique display area.

  In the slit display unit 52, the light from the pixels in the dot portion of the image display unit 51 travels in the front direction as indicated by the solid line arrow in FIG. A slit-shaped opaque portion is formed so as to proceed in an oblique direction as indicated by an alternate long and short dash line arrow in FIG. Accordingly, as shown in FIG. 7, the person A who is in front of the main screen 4 (main display unit 50) sees the front image 53, and the person B / B who is in the diagonal direction of the main screen 4 'Will see the oblique image 54.

  Next, details of the control unit 25 in the mobile phone 1 will be described with reference to FIG. FIG. 9 shows a schematic configuration of the control unit 25. As illustrated, the control unit 25 includes a transmission restriction operation detection unit 30, a radio wave transmission control unit 31, a human body detection unit 32, a transmission restriction display control unit 60, and a front display control unit 61 that have the same configuration as in FIG. , An oblique display control unit 62 and a slit display control unit 63. In the present embodiment, as described above, since the main screen 4 displays that the transmission of radio waves is restricted, the tilt detection unit 33 that detects the tilt of the sub screen 5 is unnecessary.

  The transmission restriction display control unit 60 controls the oblique display control unit 62 and the slit display control unit 63 based on notifications from the transmission restriction operation detection unit 30 and the human body detection unit 32. That is, when the transmission restriction operation detection unit 30 detects an operation for restricting the transmission of radio waves, the transmission restriction display control unit 60 controls the slit display control unit 63 to form a slit-like opaque portion in the slit display unit 52. To do. Further, the transmission restriction display control unit 60 controls the front display control unit 61 and the oblique display control unit 62 to divide the display area of the image display unit 51 into a front display area and an oblique display area, and for oblique display. Display in the area that radio wave transmission is restricted.

  At this time, when the human body detection unit 32 detects that no person other than the user is present in the surroundings, the transmission restriction display control unit 60 controls the slit display control unit 63 so that the opaque portion of the slit display unit 52 is transparent. Change to part. Further, the transmission restriction display control unit 60 controls the front display control unit 61 and the diagonal display control unit 62 to release the division of the display area and display the front image 53 in the display area.

  Similarly, when the transmission restriction operation detection unit 30 detects an operation for canceling the restriction on the transmission of radio waves, the transmission restriction display control unit 60 controls the slit display control unit 63 so that the opaque portion of the slit display unit 52 is transparent. While changing to a part, the front display control part 61 and the diagonal display control part 62 are controlled, the division | segmentation of a display area is cancelled | released, and the image 53 for fronts is displayed on a display area.

  The processing operation in the mobile phone 1 having the above configuration will be described with reference to FIG. FIG. 10 shows a processing operation performed by the control unit 25 when the user of the mobile phone 1 performs an operation for limiting the transmission of radio waves. The processing operation in the present embodiment is different only in steps S13 to S15 and S17 among the processing operations S10 to S18 shown in FIG.

  In the processing operation (S12) in which the human body detection unit 32 detects whether there is a person around based on the signal from the sensor unit 23 (NO in S12), transmission restriction is performed. The display control unit 60 controls the front display control unit 61 and the oblique display control unit 62 to release the division of the display area and display the front image 53 in the display area (S43). Next, the transmission restriction display control unit 60 controls the slit display control unit 63 to change the opaque portion of the slit display unit 52 to a transparent portion, thereby turning off the slit display (S44). Thereby, all the pixels of the image display part 51 can be utilized for the display of the front image 53, and a display with high resolution can be performed.

  On the other hand, when there is a person around (YES in S12), the transmission restriction display control unit 60 controls the slit display control unit 63 to form a slit-like opaque portion in the slit display unit 52. Then, the slit display is turned on (S40). Next, the transmission restriction display control unit 60 controls the front display control unit 61 and the oblique display control unit 62 to divide the display area of the image display unit 51 into a front display area and an oblique display area (S41). . Next, the transmission restriction display control unit 60 controls the oblique display control unit 62 to display in the oblique display area that transmission of radio waves is restricted. Thereby, it is possible to notify people next to the user that the mobile phone 1 restricts the transmission of radio waves.

  After step S42 or step S44, the transmission restriction operation detection unit 30 detects whether or not the operation unit 16 has performed an operation for releasing the restriction on the transmission of radio waves (S16), and the operation for releasing is performed. In this case (YES in S16), transmission restriction display control unit 60 controls front display control unit 61 and oblique display control unit 62 to cancel the division of the display area, and display front image 53 in the display area. Is displayed (S45). Next, the transmission restriction display control unit 60 controls the slit display control unit 63 to change the opaque portion of the slit display unit 52 to a transparent portion, thereby turning off the slit display (S46). Then, the radio wave transmission control unit 31 controls the radio processing unit 11 to release the restriction of radio wave transmission (S18), and thereafter the processing operation is terminated.

  As described above, the mobile phone 1 according to the present embodiment is used when the terminal user is operating the mobile phone 1 while referring to the front display image displayed in the front direction from the main screen 4. The people next to the person can know that the transmission of the radio wave in the mobile phone 1 is restricted by viewing the display of the oblique display image displayed in the oblique direction from the main screen 4.

  Further, in the present embodiment, it is not necessary to display the sub screen 5 as compared with the above embodiment, so that an increase in power consumption due to the display of the sub screen 5 can be suppressed. Further, the slit display unit 52 switches the display between one direction such as a display only in the front direction and the display in a plurality of directions such as the display in the front direction and the diagonal direction by turning on / off the slit display. The switching can be easily performed.

  In the present embodiment, the fact that the transmission of radio waves is regulated is performed on the display in the oblique direction. In addition to such notification information, various information such as advertisements are displayed on the display in the oblique direction. By doing so, it is possible to provide various information to the person next to the terminal user.

  In addition, this invention is not limited to said embodiment, A various change is possible in the range shown to the claim.

  For example, in the above embodiment, wireless communication using radio waves is shown, but the present invention can also be applied to wireless communication using other electromagnetic waves, such as IrDA, which is a wireless communication system using infrared rays.

  Further, in the above embodiment, the display indicating that the transmission of radio waves is restricted is detected by human body detection or tilt detection, but the display is forcibly stopped by the terminal user operating the operation unit. It can also be set to do.

  Each block of the mobile phone 1 and the control unit 25 may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the mobile phone 1 includes a storage device (recording device) such as a CPU that executes instructions of a control program that realizes each function, a ROM that stores the program, a RAM that expands the program, a memory that stores the program and various data, and the like. Medium). An object of the present invention is to provide a recording medium in which a program code (execution format program, intermediate code program, source program) of a control program for the mobile phone 1 which is software for realizing the above-described functions is recorded so as to be readable by a computer. This can also be achieved by supplying the mobile phone 1 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a disk system including a magnetic disk such as a flexible disk / hard disk and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R, and an IC card. A card system such as an optical card (including a memory card) or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  The mobile phone 1 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a carrier wave or a data signal sequence in which the program code is embodied by electronic transmission.

  As described above, the portable wireless terminal according to the present invention displays the fact that the transmission of electromagnetic waves is restricted on the second display means having a display direction different from that of the first display means. A person other than the terminal user who is referring to the display means can know that the transmission of electromagnetic waves in the mobile phone terminal is restricted by looking at the display content of the second display means. Therefore, for example, when there is information to notify people around the terminal user, such as the type of communication method when wireless communication is performed, the information to be notified by applying the present invention Can be transmitted to the people around the terminal user via the second display means.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the external appearance in the state which opened the mobile telephone regarding the mobile telephone which is one Embodiment of this invention, The figure (a) is a front view, The figure (b) is a rear view. It is a block diagram which shows schematic structure of the said mobile telephone. It is a block diagram which shows schematic structure of the control part in the said mobile telephone. It is a flowchart which shows the flow of the restriction | limiting process of the radio wave transmission performed by the said control part. It is a block diagram which shows schematic structure of the control part in the mobile telephone which is another embodiment of this invention. It is a flowchart which shows the flow of the viewing-and-listening process of TV broadcasting performed by the said control part. The structure of the main display part in the mobile phone which is other embodiment of this invention, the image which the person in the front direction of the display surface of a main display part sees, and the image which the person in the diagonal direction of this display surface sees FIG. It is the schematic which shows the state by which the display area in the image display part of a main display part was divided | segmented into the area | region for front display, and the area | region for diagonal display. It is a block diagram which shows schematic structure of the control part in the said mobile telephone. It is a flowchart which shows the flow of the restriction | limiting process of the radio wave transmission performed by the said control part.

Explanation of symbols

1 Mobile phone (portable wireless terminal)
16 Operation part (operation means)
18 Main display section (first display means)
19 Sub display section (second display means)
23 Sensor part (human body detection means, inclination detection means)
31 Radio wave transmission control unit (transmission control means)
32 Human body detection part (human body detection means)
33 Inclination detection unit (inclination detection means)
34 Transmission Limit Display Control Unit (Display Control Unit)
42 Radio wave transmission stop control unit (transmission control means)
43 Transmission stop display control unit (display control means)
50 Main display section (first display means, second display means)
60 Transmission restriction display control unit (display control means)
61 Front display control unit (display control means)
62 Oblique display control unit (display control means)
63 Slit display control unit (display control means)

Claims (12)

In a portable wireless terminal provided with wireless communication means for performing wireless communication by transmission and reception of electromagnetic waves,
First display means;
Second display means having a display direction different from that of the first display means;
Transmission regulation means for regulating transmission of the electromagnetic wave;
When the transmission restricting means restricts the transmission of the electromagnetic wave and the first display means is displaying, the fact that the transmission of the electromagnetic wave is restricted is displayed on the second display means. Display control means for controlling,
The wireless communication means can perform wireless communication of a plurality of systems,
In addition to restricting transmission of electromagnetic waves related to all wireless communication methods , the transmission restriction means restricts transmission of electromagnetic waves for at least one wireless communication method, while transmitting output more than the method related to the restriction. Ri also der allowing transmission of the electromagnetic wave for wireless communication of a small system,
The portable wireless terminal characterized in that the display control means controls the second display means to further display the method in which the transmission restricting means restricts the transmission of electromagnetic waves.   The portable radio terminal according to claim 1, wherein the electromagnetic wave whose transmission is restricted by the transmission restricting means has a transmission output of a predetermined value or more.   On the display side of the first display means, the terminal user further comprises operation means for operation,
  The display control means controls transmission of the electromagnetic wave when the transmission restriction means restricts transmission of the electromagnetic wave, the first display means performs display, and an operation is performed by the operation means. 2. The portable wireless terminal according to claim 1, wherein control is performed so that the restriction is displayed on the second display means.   2. The portable wireless terminal according to claim 1, wherein the display control unit controls the second display unit to blink.   2. The portable wireless terminal according to claim 1, further comprising display setting means for setting whether or not to display the second display means under the control of the display control means.   It further comprises human body detecting means for detecting whether or not a person other than the terminal user exists nearby,
  The display control means controls the display of the second display means to be stopped when the human body detecting means has not detected a person other than the terminal user. The portable wireless terminal described in 1.   2. The portable wireless terminal according to claim 1, wherein the display direction of the second display means is opposite to that of the first display means.   An inclination detection means for detecting an inclination angle from a horizontal plane with respect to the display surface of the second display means;
  8. The display control means according to claim 7, wherein when the inclination angle detected by the inclination detection means is equal to or less than a predetermined angle, the display control means controls to stop the display of the second display means. Portable wireless terminal.   The first and second display means perform display from the same display surface,
  The first display means performs display in the front direction from the display surface,
  The portable wireless terminal according to claim 1, wherein the second display means performs display in an oblique direction from the display surface.   Wireless communication means capable of performing wireless communication of a plurality of systems by transmission and reception of electromagnetic waves, first display means, second display means having a display direction different from the first display means, and all In addition to restricting the transmission of electromagnetic waves according to a wireless communication method, it restricts the transmission of electromagnetic waves for at least one method of wireless communication, while for the wireless communication of a method having a smaller transmission output than the method according to the restriction A display control method in a portable wireless terminal comprising transmission restriction means capable of permitting transmission of electromagnetic waves,
  When the transmission restricting means restricts the transmission of the electromagnetic wave and the first display means is displaying, the fact that the transmission of the electromagnetic wave is restricted and the wireless that restricts the transmission of the electromagnetic wave. A display control method for a portable wireless terminal, characterized in that the communication method is controlled to be displayed on the second display means.   A display control program for operating the portable wireless terminal according to any one of claims 1 to 9, wherein the display control program causes a computer to function as the display control means.   A computer-readable recording medium on which the display control program according to claim 11 is recorded.

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