JP4437774B2 - Mobile phone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone set which has a call mode for making a telephone call as a communication mode and a data mode for performing a data communication, and which provides a superior user interface by fully utilizing the characteristics of both modes. <P>SOLUTION: The portable telephone set which has the call mode for making a telephone call as a communication mode and the data mode for performing data communication, comprises an instruction input part 14 for inputting an instruction of a user, a liquid crystal display 15 for displaying information to the user, a switching part 16a for switching between the speech mode and the data mode, a data communication condition monitoring part 16d for monitoring the condition of the data communication in the data mode, and a switching decision part 16g for deciding whether the communication mode should be switched to the speech mode, based on a monitored result of the data communication condition monitoring part 16d. <P>COPYRIGHT: (C)2006,JPO&amp;NCIPI

Description

  The present invention relates to a mobile phone having a call mode for performing a call and a data mode for performing data communication as communication modes.

  In the mobile data communication field, a system in which an external processing device is connected to a mobile phone and packets are transmitted and received via the mobile phone has been put into practical use. Examples of the external processing device include notebook type and book type computers, and PDAs (Personal Digital (Data) Assistants) such as electronic notebooks. In this system, the mobile phone is controlled by an external processing device and functions as a simple communication path.

  In addition, a communication terminal having a mobile phone function mounted on a PDA has been developed. This type of communication terminal normally has a mode for performing a call and a mode for performing data communication as operation modes, and the user of the communication terminal selects the operation mode as necessary. Use properly.

  By the way, in a system in which an external processing device is connected to a mobile phone, there is a problem in portability because it is necessary to carry the external processing device in addition to the mobile phone. Further, in normal calls, it is normal to use a mobile phone alone, so when performing data communication, the mobile phone must be connected to an external processing device. Although the labor involved in this connection is being simplified, there is no change in the occurrence of some work.

  On the other hand, the above-mentioned inconvenience does not occur in a communication terminal having a PDA with a mobile phone function. However, most of these types of communication terminals are devices in which a device for realizing a call and a device for realizing a data communication are simply integrated, and the user interface is used for the functions required for the call and the data communication. It is not an interface that takes into account the differences in required functions.

  The present invention has been made in view of the above-described circumstances, and has a call mode for performing a call and a data mode for performing data communication as communication modes, and is excellent by fully utilizing the characteristics of both modes. An object of the present invention is to provide a mobile phone that provides a user interface.

  A mobile phone according to a preferred aspect of the present invention is a mobile phone having a call mode for performing a call and a data mode for performing data communication as communication modes, and an instruction for inputting a user instruction Input means; information presentation means for presenting information to a user; switching means for switching between the call mode and the data mode; and an incoming call request for receiving a call incoming request from a mobile communication network in the data mode Receiving means.

In this aspect, there may be provided an incoming request notification means for notifying a user that the incoming request reception means has received the incoming call request in the data mode.
The information presenting means includes a liquid crystal display, and the incoming request notification means displays an image to the effect that the incoming request reception means has received the incoming call request in the data mode by the liquid crystal display. Also good.

  The information presenting means includes a lamp that can be turned on / off, and the incoming request notification means turns on / off the lamp, and the incoming request receiving means receives the incoming call request in the data mode. It may be characterized by notifying the user.

  Further, the information presenting means includes sounding means capable of sound generation, and the incoming call request notification means performs predetermined sound generation using the sounding means, whereby the incoming call request receiving means in the data mode causes the incoming call request to be received. The user may be notified that the request has been received.

  The information presenting means includes a vibration device that can vibrate, and the incoming request notification means uses that the incoming request reception means has received the incoming call request in the data mode by vibrating the vibration device. It is good also as a feature to notify a person.

A mobile phone according to another preferred aspect of the present invention is a mobile phone having a call mode for performing a call and a data mode for performing data communication as communication modes, and for inputting a user instruction. Instruction input means, information presentation means for presenting information to the user, switching means for switching between the call mode and the data mode, and receiving an incoming call request from the mobile communication network in the data mode Incoming request receiving means and information in use when the incoming request receiving means receives the incoming call request for the call in the data mode and the instruction input from the instruction input means is a predetermined instruction. Is stored as data mode return information, and call processing means for responding to the incoming call request in the call mode. Switching means, characterized in that switching the communication mode after completing storage of the data mode return information by the resumption information storage means in the call mode.

In this aspect, the information in use may be information indicating a storage position of information to be presented by the information presentation unit.
Further, the information in use may be information that the information presenting means intends to present.

Further, in the above restoration information storing means under conditions that stores the data mode return information, switching the automatic control means for shifting said communication mode prior Kide Tamodo by said switching means when the call in the call mode ends It is good also as comprising.

  When the switching unit switches the communication mode from the call mode to the data mode, the information presenting unit may present information corresponding to the data mode return information when the communication mode is switched from the call mode to the data mode.

  The continuation unit may cause the information presentation unit to present information corresponding to the data mode return information only when a preset condition is satisfied.

  A timer is provided, and the continuation means measures an elapsed time from the occurrence of a specific event using the timer, and returns to the data mode only when the measured value of the timer is equal to or less than a preset threshold value. Information corresponding to information may be presented by the information presenting means.

The specific event may be characterized in that the switching means switches the communication mode to the call mode after completion of the storage of the data mode return information by the return information storage means.
The specific event may be an end of a call in the call mode.

  A mobile phone according to another preferred aspect of the present invention is a mobile phone having a call mode for performing a call and a data mode for performing data communication as a communication mode, for inputting a user instruction. Instruction input means, a backlit liquid crystal display for presenting information to the user, switching means for switching between the call mode and the data mode, data receiving means for receiving data in the data mode, and the data Monitoring status of data received by the receiving means, and when the monitoring result is a result indicating that the reception of data by the data receiving means is completed, the monitor lighting means for lighting the backlight of the liquid crystal display is provided. It is characterized by that.

  A mobile phone according to another preferred aspect of the present invention is a mobile phone having a call mode for performing a call and a data mode for performing data communication as a communication mode, for inputting a user instruction. Instruction input means, information presentation means for presenting information to a user, switching means for switching between the call mode and the data mode, wireless strength detection means for detecting the strength of a wireless carrier, and the wireless strength A communication availability determination unit that determines whether communication is possible based on a detection result by the detection unit and a threshold value; and a threshold value change unit that changes the threshold value for each of the two modes of the call mode and the data mode. Features.

  In this aspect, the information presenting means may present information according to two types of determination results obtained by the communication availability determining means by the threshold changing means changing the threshold.

  The information presenting means presents information according to a determination result obtained by the communication availability determining means based on the threshold corresponding to the call mode in the call mode, and the data mode in the data mode. It is good also as presenting the information according to the determination result obtained by the said determination means based on the said threshold value according to.

  A mobile phone according to another preferred aspect of the present invention is a mobile phone having a call mode for performing a call and a data mode for performing data communication as a communication mode, for inputting a user instruction. Instruction input means, information presentation means for presenting information to the user, switching means for switching between the call mode and the data mode, and call mode wireless strength detection for detecting the strength of the radio carrier in the call mode A communication mode in the call mode based on a detection result by the call mode wireless strength detection means and a threshold value corresponding to the call mode. A call mode enable / disable determining unit that determines whether or not the communication mode is permitted; a detection result of the data mode wireless strength detecting unit; Characterized by comprising a data mode determination means for determining whether communication in the data mode based on the threshold value corresponding to.

  In this aspect, the information presentation unit may present information according to the determination result of the call mode availability determination unit and the determination result of the data mode availability determination unit.

  The information presenting means presents information according to the determination result of the call mode availability determination means in the call mode, and presents information according to the determination result of the data mode availability determination means in the data mode. It may be characterized by.

  A mobile phone according to another preferred aspect of the present invention is a mobile phone having a call mode for performing a call and a data mode for performing data communication as a communication mode, for inputting a user instruction. Instruction input means and switching means for switching the communication mode based on the instruction input by the instruction input means and the communication state, the switching means switches the communication mode from the instruction input means to the data mode. When an instruction to the effect is input, if communication is not performed in the call mode, the communication mode is switched to the data mode. If communication is performed in the call mode, the communication mode is set to the data mode. It may be characterized in that the process of switching to is not performed.

  According to the present invention, the data mode can be switched to the call mode based on the monitoring result by the data communication status monitoring unit or the operation status monitoring unit. If the monitoring result indicates, for example, a no-communication period or a no-input period, an increase in communication cost due to forgetting to disconnect in the data mode is prevented.

  Further, according to the present invention, it is possible to receive a call incoming request from the mobile communication network in the data mode. In addition, the user can be notified that the incoming call request has been received.

  Further, according to the present invention, the communication mode is switched to the call mode after the data in use in the data mode is stored as the data mode return information. For this reason, it becomes possible to use the data in use in the data mode later. Further, when the data mode return information is information indicating the storage position of the information to be presented by the information presenting means, the storage area of the data in use can be made small. Alternatively, when the data mode return information is not the data being displayed but the information that the information presenting means intends to present, it can be easily reused later. Alternatively, the communication mode can be automatically switched to the data mode when the call in the call mode after storing the data mode return information is terminated. Further, after switching to the data mode, information corresponding to the data mode return information can be presented by the information presenting means. In addition, information corresponding to the data mode return information can be presented by the information presenting means only under specific conditions.

  Further, according to the present invention, the backlight extinction condition of the liquid crystal display that is extinguished according to the operation status of the instruction input means can be switched for each communication mode. Therefore, backlight extinction control suitable for the characteristics of each communication mode can be performed. In particular, in the data mode in which the non-input period tends to be long, it is possible to avoid the inconvenience that the backlight is turned off while the display contents are not grasped.

  Further, according to the present invention, the backlight of the liquid crystal display can be turned on when the data reception is completed. That is, it is possible to reduce power consumption by turning on the backlight in an environment where the user's ability can be maximized.

  Further, according to the present invention, the threshold used for determining whether communication is possible can be changed for each communication mode. Therefore, it is possible to determine whether or not communication suitable for the characteristics of each communication mode is possible. Further, according to the present invention, when communication is performed in the call mode, the instruction for switching the communication mode is ignored. Therefore, it is possible to prevent a situation in which a call is unexpectedly disconnected due to unintentional switching of a communication mode due to an erroneous operation.

  In summary, according to the present invention, it is possible to provide an excellent user interface by fully utilizing the characteristics of the call mode and the data mode.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited to this embodiment, A various change is possible within the range of the technical idea.

A: Configuration of Embodiment First, the configuration of a mobile communication system using a mobile phone MS according to an embodiment of the present invention will be described.
A-1: Configuration of Mobile Communication System FIG. 1 is a block diagram showing a configuration of a mobile communication system using a mobile phone MS according to an embodiment of the present invention. In the figure, an MS is a mobile device that receives a packet communication service of the mobile packet communication network MPN. This mobile phone MS is connected to the mobile packet communication network MPN and the mobile telephone network MTN shown in this figure. Since the mobile telephone network MTN is a network that provides a general mobile telephone service, the mobile station MS can receive the service. The configuration of the mobile phone MS will be described later. The mobile telephone network MTN includes a base station BS, which will be described later, and a digital mobile communication exchange MLS that provides a circuit switching service.

  The mobile packet communication network MPN includes a base station BS, a packet subscriber processing device PS, a gateway server GWS, and a communication line connecting them. The base stations BS are arranged at predetermined intervals obtained by dividing the ground within a range of a radius of 500 m, for example, and perform radio communication with the mobile phone MS located in the radio zone formed by each. The packet subscriber processing device PS is a computer system provided in a packet subscriber switching center that accommodates a plurality of base stations BS, and accepts a packet switching request from the mobile phone MS and receives packets in the mobile packet communication network MPN. Relay the exchange.

  The gateway server GWS is a computer system provided in a mobile packet gateway relay switching center for interconnecting the mobile packet communication network MPN and other networks such as the Internet INET, and converts different communication protocols between the networks. . Specifically, mutual conversion is performed between a transmission protocol for a mobile packet communication network that the mobile packet communication network MPN follows and a TCP / IP (Transmission Control Protocol / Internet Protocol) that other networks such as the Internet INET follow. Further, the gateway server GWS performs control related to the information distribution service and various applications in cooperation with the IP server W.

  The gateway server GWS has an IP registration information file. In this IP registration information file, for each information provider (hereinafter referred to as IP) that has a contract for receiving a gateway service with a mobile packet communication network MPN business operator, the name of the business operator and the absolute on the network (For example, in the case of the Internet, a URL (Uniform Resource Locator) for specifying information resources on the WWW (World Wide Web). In the present embodiment, an absolute address on the network will be described as a URL). Accumulated.

  The IP server W is a server system operated by the IP, and sends information to be provided to the user as data in HTML (Hyper Text Markup Language) format to the network. The IP server W includes a server connected to the gateway server GWS via the Internet INET, a server connected to the gateway server GWS via a dedicated line, and a mobile packet communication network MPN provided in the gateway server GWS. Some of the companies themselves provide.

A-2: Configuration of Mobile Phone MS (1) Hardware Configuration FIG. 2 is a block diagram showing the hardware configuration of the mobile phone MS. As shown in this figure, the mobile phone MS is wireless with the base station BS. A transmitting / receiving unit (for example, having an antenna, a radio unit, a transmitter, a receiver, etc.) 11 for performing communication, a sound collecting unit (for example, a microphone) 12 for inputting sound, a sounding unit (for example, a speaker) 13 for generating sound An instruction input unit (for example, a keypad) 14 for performing an instruction input operation such as numeric input and character input, a liquid crystal display 15 having a liquid crystal panel and a backlight, and a control unit 16 for controlling these units are incorporated. In addition, the control unit 16 includes a CPU (Central Processing Unit) 161 that performs various controls, a ROM (Read Only Memory) 162 that stores an operation program to be executed by the CPU 161, and an SRAM that stores user data such as telephone directory data ( When a power (not shown) is turned on, the CPU 161 reads and executes a program stored in the ROM 162, and executes the SRAM 163, the transmission / reception unit 11, the sound collection unit 12, and the sound generation. Control unit 13, instruction input unit 14, and liquid crystal display 15.

  The mobile phone MS includes a communication mode for performing a call and a data mode for performing data communication as communication modes. When the communication mode is changed to the data mode, document data stored in the ROM 162 is stored. By reading the browsing software (so-called browser) and executing the browser, the liquid crystal display 15 receives the data in the HTML format (hereinafter referred to as HTML data) supplied from the IP via the mobile packet communication network MPN. Display an interactive screen. The acquisition of HTML data in the mobile phone MS is completed by transmitting an acquisition request designating the URL of the resource and storing the HTML data transmitted from the IP side corresponding to this in the work area of the SRAM 163. . In addition, the instruction input unit 14 and the liquid crystal display 15 are shared by the call mode and the data mode.

(2) Functional Configuration As described above, the mobile phone MS realizes various functions by the CPU 161 executing various programs. Here, the functions of the mobile phone MS having the above-described configuration will be described with respect to characteristic portions of the present invention. Note that other functions are provided in a general mobile phone and are well known, and thus the description thereof is omitted.

  FIG. 3 is a block diagram for explaining a functional configuration of the mobile phone MS with respect to a characteristic part of the present invention. In this figure, the wireless strength detection unit 11a for detecting the strength of the wireless carrier wave from the base station BS (hereinafter referred to as wireless strength) in the transmission / reception unit 11 always operates and does not depend on the operation program executed by the CPU 161. The obtained wireless strength is output to the control unit 16. In this communication system, the wireless channel used in the call mode and the wireless channel used in the data mode are the same, and the wireless strength detector 11a detects and outputs only one wireless strength.

  In the control unit 16, the switching unit 16a switches the communication mode (call mode / data mode) of the mobile phone MS based on an instruction supplied from the instruction input unit 14 and an automatic switching control unit 16b described later.

  The data communication processing unit 16c operates in cooperation with the transmission / reception unit 11 in the data mode, and performs transmission / reception processing of HTML data. The data communication status monitoring unit 16d monitors the status of transmission / reception processing (data communication status) by the data communication processing unit 16c. Specifically, the data communication status monitoring unit 16d uses the output data of the timer e that outputs the current time, measures the elapsed time since the last transmission / reception process by the data communication processing unit 16c, When the elapsed time exceeds a preset first no-communication time, a switching request for switching the communication mode to the call mode is output. Further, in the data mode, when the series of transmission / reception processing by the data communication processing unit 16c is completed in the data mode, the data communication processing unit 16c sends a lighting request for requesting lighting of the backlight of the liquid crystal display 15 to the on / off determining unit 16h. Supply. In the present embodiment, it is determined that a series of transmission / reception processing has been completed when the time during which the transmission / reception processing by the data communication processing unit 16c is not performed in the data mode has reached a preset second no-communication time. Is done. The length of the specified time is an appropriate design matter.

  The operation status monitoring unit 16f monitors input data from the instruction input unit 14 and outputs a monitoring result. Specifically, when the communication mode is the data mode, the operation status monitoring unit 16f uses the output data of the timer e and indicates the elapsed time since the last data input from the instruction input unit 14. When the elapsed time exceeds a preset first no-operation time, a switching request for switching the communication mode from the data mode to the call mode is sent to the switching determination unit 16g described later as a monitoring result. If the elapsed time exceeds the second no-operation time, a turn-off request for turning off the backlight is supplied to the turn-on / off determination unit 16h. In addition, when the communication mode is the call mode, the operation status monitoring unit 16f issues a turn-off request for turning off the backlight, which will be described later, when the elapsed time exceeds the third no-operation time. It supplies to the light extinction determination part 16h.

  In the data mode, the switching determination unit 16g determines whether to switch the communication mode to the call mode based on the data supplied from the data communication status monitoring unit 16d and the supply data from the operation status monitoring unit 16f. When a determination result indicating that the result should be switched is obtained, a switching request is output. Specifically, the switching determination unit 16g determines that the communication mode should be switched to the call mode when receiving a switching request from both the monitoring units 16g and 16f, and outputs the switching request.

  The call processing unit 16 i operates in cooperation with the transmission / reception unit 11, and performs call processing including call connection / disconnection processing in the call mode according to input data from the instruction input unit 14. In addition, the call processing unit 16i receives the incoming request supplied via the base station BS, generates an acoustic signal indicating that the incoming request is received, supplies the acoustic signal to the sound generation unit 13, and in the data mode. Then, information indicating that the incoming request is received (hereinafter referred to as incoming request reception information) is supplied to the switching determination unit 16g. In the data mode, the switching determination unit 16g receives a response instruction (for example, when a hook key is pressed) by the instruction input unit 14 while the incoming call request reception information is supplied from the call processing unit 16i. When an input instruction) is received, a switching and response request is supplied to the switching automatic control unit 16b and a save request is output.

  When the return information storage unit 16k receives a save request from the switching determination unit 16g in the data mode, the data used in the data mode (for example, the URL used last or the HTML data being displayed) is saved in the SRAM 163. The information is saved as data mode return information, and immediately after the saving process is completed, information indicating that the saving process is completed (saving process completion information) is supplied to the switching automatic control unit 16b and the continuation processing unit 16j.

  When receiving a switching request from the switching determination unit 16g in the data mode, the automatic control unit 16b supplies an instruction for switching the communication mode to the call mode to the switching unit 16a. When the automatic control unit 16b receives the switching and response request from the switching determination unit 16g, the automatic control unit 16b waits for the saving process completion information from the return information storage unit 16k, and receives the saving process completion information. An instruction to switch the communication mode to the call mode is supplied to 16a, and an instruction to respond to the incoming call request is supplied to the call processing unit 16i. When the call processing unit 16i receives the instruction from the switching automatic control unit 16b when receiving an incoming call request, the call processing unit 16i performs a response process for the incoming request.

  When the data mode return information exists, the continuation processing unit 16j uses the output data of the timer 16e, measures the elapsed time from the time when the save processing completion information is received from the return information storage unit 16k, and performs communication. If the elapsed time at the time when the mode is switched from the call mode to the data mode does not exceed the preset duration, the data mode return information saved by the return information storage unit 16k (for example, URL or HTML data) is restored. Note that “return” here means that if the data is a URL, it means that the resource specified by the URL is acquired. If the data is not a URL (for example, HTML data), the data Is moved to a predetermined work area on the SRAM.

  The communication enable / disable determining unit 16m includes a wireless strength detected by the wireless strength detecting unit 11a, a first threshold set in advance corresponding to the call mode, and a second threshold set in advance corresponding to the data mode. If the wireless strength exceeds the first threshold value and the second threshold value, a determination result indicating that communication in both modes is possible is made. The wireless strength is higher than the first threshold value. If it is lower than the second threshold, it is determined that only communication in the call mode is possible. If the strength is lower than the first threshold and the second threshold, it is determined that the communication is out of service. Output the result. Here, for the purpose of ensuring communication quality in the data mode, the second threshold corresponding to the data mode is set to be larger than the first threshold corresponding to the call mode.

  In the data mode, the image generation unit 16n generates an image based on data on a predetermined area (for example, a predetermined work area) of the SRAM 163 and the determination result of the communication availability determination unit 16m, and supplies the image to the liquid crystal display 15.

  The on / off determination unit 16h outputs an instruction to turn on / off the backlight of the liquid crystal display 15 based on the supply data from the data communication status monitoring unit 16d and the supply data from the operation status monitoring unit 16f. Specifically, the lighting / unlighting determination unit 16h receives a lighting instruction when receiving a lighting request from at least one of the monitoring units 16g and 16f, and receives a lighting request from at least one of the monitoring units 16g and 16f. Outputs a turn-off instruction. In addition, when the lighting request and the lighting request are received at the same time, the lighting / light-off determination unit 16h outputs a lighting instruction.

  The on / off controller 16p controls lighting / extinguishing of the backlight based on the instruction output from the on / off determining unit 16h and the current lighting state of the backlight of the liquid crystal display 15. Specifically, when a lighting instruction is received when the backlight is turned off, the backlight is turned on. When a lighting instruction is received when the backlight is turned on, Control to turn off the backlight is performed, and control to the backlight is not performed in other cases. Note that the lighting timing of the backlight adopted in a general mobile phone is common to the mobile phone MS, but the description thereof is omitted because it is not a characteristic part of the present invention.

B: Operation of Embodiment Next, the operation of the above-described communication system will be described. However, descriptions of operations other than the characteristic operations of the present invention are omitted.
B-1: Normal Mode Switching Operation In FIG. 3, when the user operates the instruction input unit 14 and inputs an instruction to switch the communication mode to the call mode, the switching unit 16a displays the current communication mode in the data mode. If there is, the communication mode is switched to the call mode, and if the current communication mode is the call mode, nothing is performed. When the user operates the instruction input unit 14 and inputs an instruction to switch the communication mode to the data mode, the switching unit 16a switches the communication mode to the data mode if the current communication mode is the call mode. If the communication mode is the data mode, nothing is done. When the communication mode is switched to the data mode by the switching unit 16a, the continuation processing unit 16j returns the return information when the elapsed time from the reception of the save process completion information does not exceed the preset continuation time. The data mode return information saved by the storage unit 16k is restored. An image based on the data thus restored on the work area of the SRAM 163 is generated by the image generation unit 16 n and displayed on the liquid crystal display 15. If the elapsed time exceeds the duration time, a preset image is displayed on the liquid crystal display 15.

B-2: Mode switching operation due to timeout In FIG. 3, in the data mode, the elapsed time since the last transmission / reception process by the data communication processing unit 16c exceeds the first no-communication time, and the instruction is input When the elapsed time from the last data input from the unit 14 exceeds the first no-operation time, a switching request is output from the switching determination unit 16g. Upon receiving this switching request, the switching automatic control unit 16b can switch the communication mode to the call mode by the switching unit 16a. Thereby, it is possible to suppress an increase in communication cost due to unnecessary connection in the data mode.

B-3: Mode switching operation by incoming request In FIG. 3, when a call incoming request is received in the data mode, a sound indicating that a call is being received is generated by the sound generation unit 13 and received from the call processing unit 16i. The request reception information is supplied to the switching determination unit 16g. When receiving the response request from the instruction input unit 14 while receiving the incoming request reception information, the switching determination unit 16g that has received the incoming request reception information supplies the switching and response request to the switching automatic control unit 16b. The save request is supplied to the return information storage unit 16k. Then, the return information storage unit 16k performs the above-described saving process, and the saving completion information is supplied to the switching automatic control unit 16b and the continuation processing unit 16j. Next, when the save completion information is supplied from the return information storage unit 16k, the switching automatic control unit 16b switches the communication mode to the call mode using the switching unit 16a and instructs the call processing unit 16i to respond. Supply. Upon receiving this response instruction, the call processing unit 16i performs response processing for the incoming call request. That is, the communication mode becomes the call mode, response processing for the incoming call request is performed, and a call can be made. In the continuation processing unit 16j, the elapsed time after receiving the saving completion information is counted.

B-4: Operation for determining whether communication is possible In FIG. 3, whether the communication is possible or not is determined by the communication availability determining unit 16m for the wireless strength detected by the wireless strength detecting unit 11a. As described above, the wireless strength indicates the strength of the wireless carrier wave common to the call mode and the data mode, and the communication availability determination unit 16m compares the wireless strength with the first threshold value and the second threshold value. The communication mode that can be used is determined. Then, an image corresponding to the determination result is generated by the image generation unit 16 n and displayed on the liquid crystal display 15. Therefore, the user can know the available communication modes by visually recognizing the liquid crystal display 15 in any communication mode.

B-5: Automatic extinction In FIG. 3, in the data mode, when the elapsed time since the last data input from the instruction input unit 14 exceeds the second no-operation time, the on / off determination unit A turn-off request is output from 16h. The turn-on / off control unit 16p that has received this turn-off request performs control to turn off the backlight when the backlight of the liquid crystal display 15 is turned on. In the data mode, when the elapsed time since the last data input from the instruction input unit 14 exceeds the third no-operation time, a turn-off request is output from the turn-on / off determination unit 16h. . The turn-on / off control unit 16p that has received this turn-off request performs control to turn off the backlight when the backlight of the liquid crystal display 15 is turned on. Here, if the third no-operation time is set longer than the second no-operation time, the no-operation time until the backlight is turned off in the data mode in which the user visually recognizes the image displayed on the liquid crystal display 15. Can be lengthened. That is, it is possible to reduce the probability of occurrence of a situation in which the backlight is turned off because no operation is performed despite viewing the image displayed on the liquid crystal display 15.

B-6: Automatic lighting In FIG. 3, when a series of transmission / reception processing by the data communication processing unit 16c is completed in the data mode, a lighting request for lighting the backlight of the liquid crystal display 15 is turned on / off determining unit 16h. To the lighting / extinguishing control unit 16p. Upon receiving this turn-off request, the turn-on / off control unit 16p performs control to turn on the backlight when the backlight is turned off. That is, it is guaranteed that the backlight is always turned on when the final image is displayed on the liquid crystal display 15. This means that the backlight may be turned off until a series of transmission / reception processes are completed. That is, it is not necessary to turn on the backlight during a period in which an intermediate image that is difficult to read is displayed, and power consumption can be reduced without reducing the quality of the user interface.

C: Supplement (1) The storage means in the controller 16 is not limited to ROM or SRAM. For example, an EEPROM (Electrically Erasable Programmable Read Only Memory), an EPROM (Erasable Programmable Read Only Memory), a DRAM (Dynamic Random Access Memory), or the like may be employed.
(2) Means for notifying that the incoming call request in the data mode is received is not limited to the sound generation unit. For example, the vibration device may be vibrated, an LED (Light Emitting Diode) may be turned on, or the fact may be displayed on a liquid crystal display.

(3) In the continuation processing unit 16j, when the data mode return information has already been saved and the call mode is switched to the data mode within a predetermined time after the end of the call that triggered the switch to the call mode, The data mode return information may be returned.
(4) When changing from the data mode to the call mode, information in use may be saved.
(5) The switching automatic control unit 16b may automatically switch the communication mode to the data mode at the end of a call made in response to an incoming call request triggered by the saving process.
(6) In the continuation processing unit 16j, the condition for returning the data mode return information is not limited to the elapsed time. For example, when a predetermined instruction is input from the instruction input unit 14 in the call mode, the data mode return information may not be returned regardless of the timing at which the communication mode is switched to the data mode.

(7) In the operation status monitoring unit 16f, the second threshold corresponding to the data mode may not be larger than the first threshold corresponding to the call mode. In short, various parameters may be set in consideration of user operation in each communication mode.
(8) In the above-described embodiment, the backlight lighting time in the data mode is set to be longer than the backlight lighting time in the call mode, but the reverse is also possible. In short, what is necessary is just to set suitably according to the characteristic of each communication mode.
(9) The turn-off / turn-off determination unit 16h may change the turn-off timing of the backlight according to not only the no-input time but also the communication status.
(10) The switching determination unit 16g may determine whether to switch the communication mode based on only one of the no-communication time and the no-operation time.

(11) In the communication availability determination unit 16m, the availability of communication for the two communication modes is determined at a time, but only the availability of communication for the currently used communication mode (or the communication mode not currently used) is determined. You may make it determine.
(12) You may use the determination result of the communication possibility in each communication mode for processes other than a display. For example, you may make it not change to the communication mode which cannot communicate.

(13) Various parameters are set in advance, but setting means for setting these parameters may be provided.
(14) Although the example in which the same radio carrier wave is used in the call mode and the data mode has been shown, it is needless to say that the present invention is not limited to this.
(15) Although HTML data is given as an example of data transmitted and received in the data mode, it goes without saying that the present invention is not limited to this.

It is a block diagram which shows the structure of the communication system using the mobile telephone MS by one Embodiment of this invention. 3 is a block diagram showing a hardware configuration of the mobile phone MS. FIG. 3 is a block diagram showing a functional configuration according to the present invention of the mobile phone MS. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Transmission / reception part, 11a ... Wireless intensity | strength detection part, 12 ... Sound collection part, 13 ... Sound generation part, 14 ... Instruction input part, 15 ... Liquid crystal display, 16 ... Control part, 16a ... Switching part, 16b ... Switching automatic control part , 16c ... Data communication processing unit, 16d ... Data communication status monitoring unit, 16e ... Timer, 16f ... Operation status monitoring unit, 16g ... Switching determination unit, 16h ... Light on / off determination unit, 16i ... Call processing unit, 16j ... Continuation processing , 16k ... Return information storage unit, 16m ... Communication availability determination unit, 16n ... Image generation unit, 16p ... Light on / off control unit, BS ... Base station, GWS ... Gateway server, INET ... Internet, MLS ... Digital mobile communication switch , MPN: mobile packet communication network, MS: mobile phone, MTN: mobile telephone network, PS: packet subscriber processing device, W: IP server

Claims (1)

A mobile phone having a call mode for performing a call as a communication mode and a data mode for performing data communication,
Instruction input means for inputting user instructions;
Information presenting means for presenting information to the user;
Switching means for switching between the call mode and the data mode;
An incoming request receiving means for receiving an incoming call request from a mobile communication network in the data mode;
In the data mode, when the incoming request reception means receives the incoming call request for the call and the instruction input from the instruction input means is a predetermined instruction, the information in use is used as the data mode return information. Return information storage means for saving and outputting save processing completion information ;
A call processing means for responding to an incoming call request in a call mode ;
; And a timer,
The switching means switches the communication mode to the call mode after completion of the storage of the data mode return information by the return information storage means ,
Using the timer, the elapsed time from the occurrence of a particular event that receives the saving process completion information output from said return information storage section is measured, the communication mode by the switching means again from the calling mode A continuation unit that causes the information presentation unit to present information corresponding to the data mode return information only when the measured value of the timer at the time of switching to the data mode is equal to or less than a preset threshold value. A mobile phone characterized by.

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