JPWO2006112503A1 - Computer system, mobile phone, input / output device, input / output method and program - Google Patents

Abstract

The present invention combines a microprocessor 301, a data communication function, and a keyboard 11 in order to virtually realize the functions of a personal computer by combining a high-performance microprocessor mounted on a mobile phone and an input / output device. The mobile phone 1 having the LCD 12 and the changeover switch 13, and the input / output device 2 having the keyboard 21 and the LCD 22, the keyboard 11 and the LCD 12 of the mobile phone 1 are disabled by the changeover switch 13. The keyboard 21 and the LCD 22 can be operated, an input signal from the keyboard 21 is transmitted to the microprocessor 301, a predetermined process corresponding to the input signal is executed, and a processing result is output to the LCD 22.

Description

  The present invention relates to a computer system, a mobile phone, an input / output device, an input / output method, and a program capable of inputting a user operation via a keyboard and displaying on a display unit.

  In recent years, mobile phones have become widespread so that everyone has one. The functions of so-called third-generation mobile phones are not limited to voice communication, but include a wide range of functions such as mail, groupware connected to the Internet, information browsing and use in addition to still images, moving images, music, and data communication. As a result, functions that were previously possible only with a personal computer (hereinafter referred to as a PC) are now possible with mobile phones, and the functions are being expanded. In order to realize such many kinds of advanced functions, it is necessary to mount a very high-speed and high-performance microprocessor in a mobile phone. Up to now, many high-performance microprocessors having an architecture dedicated to mobile phones have been developed, and recently, a model in which a plurality of microprocessors are mounted on one mobile phone has also appeared.

  However, as the user group expands and becomes more sophisticated, a small keyboard and a user interface represented by a small display are becoming problems. This restriction hinders the introduction, especially when it is applied to business use. From the user's point of view, while it is the same information device, data and program compatibility, operation methods, and inconsistency between sophisticated mobile phones and PCs are becoming major issues. .

In order to solve some of these, there are measures to use a mobile phone as a gateway function with the center system and display it on a large display, connect to a printing device with a wireless LAN, or connect with a portable information terminal by infrared communication. Has been taken. In addition, a data input device provided with a one-touch key group registers a telephone number in a mobile phone through infrared communication (see, for example, Patent Document 1), or connects a PC keyboard to the mobile phone (see, for example, Patent Document 2). ) Was taken. As another solution, an expansion card having a communication function (for example, a PCMCIA card or a compact flash (registered trademark) card) is inserted into the PC, or the mobile phone itself is connected to the PC.
JP 11-215551 A JP 2001-217950 A

  However, these methods are not intended to effectively utilize the high-performance microprocessor and other resources of the mobile phone as a total system and to improve the compatibility with the PC. Remained a local measure to improve or reinforce.

  The mobile phone is in a standby mode when it is not communicating or playing a game. In this mode, only a part of the functions of the high-performance microprocessor is used, and an idle state occurs in the computing resources.

  The present invention has been made in view of the above circumstances, and an object thereof is to virtually realize the functions of a personal computer by combining a high-performance microprocessor mounted on a mobile phone and an input / output device. It is an object to provide a computer system, a mobile phone, an input / output device, an input / output method, and a program.

  In order to solve the above-described problem, a computer system according to a main aspect of the present invention is a computer system including a mobile phone and an input / output device. The mobile phone includes a microprocessor and a first operation by a user operation. A first keyboard for inputting an input signal; a first display unit for displaying a first display signal generated by the microprocessor based on the input first input signal; A restriction signal for restricting input of the first input signal by the first keyboard and display of the first display signal by the first display section; A restriction signal input unit for inputting to the microprocessor, and the input / output device inputs the restriction signal to the microprocessor. A second keyboard for inputting a second input signal by the user's operation, and a second display signal generated by the microprocessor based on the second input signal. A second display and the second input signal for the second keyboard to transmit to the microprocessor and the second display for the second display to receive from the microprocessor; A second interface unit connected to the first interface unit;

  With this configuration, input / output can be performed only with the mobile phone using the first keyboard and the first display unit, and the second signal of the input / output device is input by the microprocessor by inputting the restriction signal to the microprocessor. The keyboard and the second display unit can be operated, and the mobile phone and the input / output device can function as a virtual personal computer. Here, the “display” in the second display section is not only for displaying the second display signal on the display surface of the input / output device itself, but also for a screen or other screen different from the input / output device. The case where the second display signal is displayed on the display surface of the display device is also included. The first and second interface units are constituted by, for example, network cards.

  In the computer system, the first keyboard has a first number of keys, the first display unit has a first display area area, and the second keyboard has the first number. The second display unit may have a second display area area that is equal to or larger than the first display area area.

  Thereby, the second input signal is input by the second keyboard having higher operability than the first keyboard of the mobile phone, and the second display unit has a larger display area than the first display unit of the mobile phone and is easy to see. By displaying the second display signal, the input / output device can be used like a keyboard or display unit of a PC.

  In the computer system, the mobile phone includes a communication unit that performs wireless communication via a network, and the microprocessor performs the communication based on the second input signal from the second keyboard. Control may be performed so that wireless communication is performed and the second display signal is displayed on the second display unit based on a communication result of the wireless communication.

  Here, the wireless communication refers to, for example, connecting to a network such as the Internet or a LAN (Local Area Network), sending and receiving e-mails and data, downloading Web pages and data from a Web server, and the like. This makes it possible to use an input / output device like a PC having a network connection function, such as displaying a Web page or moving image created on the assumption that it is displayed on the display unit of the PC on the second display unit. can do.

  In the computer system, the microprocessor controls the communication unit to receive a program to be executed by the microprocessor based on the second input signal or the second display signal. May be.

  As a result, a program such as an application that is not stored in the mobile phone and the input / output device and created on the assumption that it is used on the PC can be downloaded and executed via the input / output device to make the input / output device PC Can be used as

  In the above computer system, the input / output device includes a third interface unit for connecting to an external device, and the microprocessor is connected to the program via the second keyboard or the second display unit. The device driver for operating the external device may be controlled to be received by the communication unit via the network.

  Here, the external device is a storage device such as an external HDD (Hard Disk Drive), CD (Compact Disc) drive, or DVD (Digital Versatile Disc) drive, or an output device such as a printer. As a result, even if the device driver of the external device is not stored in the mobile phone and the input / output device, the external device connected to the input / output device can be connected to the PC by receiving (downloading) via the network. Can be used like external equipment.

  In the above computer system, the microprocessor has means for detecting a connection between the external device and the third interface unit, and controls to receive the device driver when the connection is detected. Good.

  Accordingly, the device driver can be received by a so-called plug and play function, and the external device can be used, and convenience is improved.

  In the computer system, the mobile phone stores a first storage unit for storing the received program and the program stored in the first storage unit in a state where the restriction signal is input. You may have the 2nd memory | storage part for loading and memorize | storing temporarily.

  Here, the first storage unit is a non-volatile memory such as a ROM (Read Only Memory) or a flash memory, or a storage device such as an HDD. The second storage unit is a temporary storage area such as a RAM (Random Access Memory). Thereby, even when the program is not stored in the input / output device, when the input / output device is used, the microprocessor loads the program from the first storage unit to the second storage unit, thereby It is possible to execute the program via

  In the computer system, the input / output device includes a first storage unit for storing the received program via the first and second interface units, and the mobile phone includes the restriction signal. A second storage unit for loading the program stored in the first storage unit via the first and second interface units and temporarily storing the program. It does not matter.

  Here, the first storage unit is a non-volatile memory such as a ROM or a flash memory, and the second storage unit is a temporary storage area such as a RAM. Thus, even when the mobile phone does not store a program to be used via the input / output device (that is, even without customizing the mobile phone to use the input / output device), the mobile phone and the input / output device The microprocessor can load the program from the first storage unit to the second storage unit via the first and second interfaces so that the program can be executed via the input / output device. Become.

  In the computer system, the first storage unit of the cellular phone stores a basic input / output system (BIOS) for operating the input / output device, and the microprocessor includes the first interface unit and the first interface unit. There may be provided means for detecting that the second interface unit is connected, and control may be performed so that the BIOS is loaded when the connection is detected.

  As a result, even if the BIOS is not stored in the input / output device, it is stored in the first storage unit of the mobile phone, and when the mobile phone and the input / output device are connected, the microprocessor performs so-called plug and play. By loading the BIOS into the second storage unit, the input / output device can be operated, and convenience is improved.

  In the computer system, the first storage unit of the input / output device stores a BIOS for operating the input / output device, and the microprocessor includes the first interface unit, the second interface unit, and the like. It is also possible to control that the BIOS is loaded via the first and second interface units when the connection is detected.

  Thus, even if the BIOS is not stored in the mobile phone to use the input / output device, the microprocessor can connect the BIOS from the input / output device by so-called plug and play when the mobile phone and the input / output device are connected. It is possible to read and make the input / output device operable, and convenience is improved.

  In the computer system, the first storage unit of the mobile phone stores first identification information for identifying the mobile phone and second identification information for identifying the input / output device. The output device includes a third storage unit that stores the first identification information and the second identification information, and the microprocessor outputs the second display signal together with the second identification information to the second display signal. The second keyboard may transmit the second input signal together with the first identification information to the microprocessor.

  Here, the identification information is, for example, an IP (Internet Protocol) address or a MAC (Media Access Control) address. As a result, a plurality of mobile phones and input / output devices can be connected, and identification information can be specified for each mobile phone and each input / output device to exchange the second input signal and the second display signal. Become. Therefore, when one mobile phone and a plurality of input / output devices are connected, a simultaneous broadcast communication system can be realized by constructing a system based on so-called server computing or network computing. Also, when multiple mobile phones and one input / output device are connected, parallel processing called multiple programming or multiple processing is possible, and from one input / output device to multiple mobile phones. It is also possible to implement a command system that issues commands. Further, when a plurality of mobile phones and a plurality of input / output devices are connected, so-called grid computing is possible, and for example, a conference system can be realized.

  The mobile phone further includes a third storage unit that stores first identification information for identifying the mobile phone and second identification information for identifying the input / output device, and the input / output device. The first storage unit stores the first identification information and the second identification information, and the microprocessor displays the second display signal together with the second identification information in the second display. The second keyboard may transmit the second input signal together with the first identification information to the microprocessor. This also enables parallel processing by connecting a plurality of mobile phones and a plurality of input / output devices as described above.

  In the computer system, the input / output device includes a first housing that houses the second keyboard, a second housing that houses the second display unit, the first housing, and the You may have a hinge part which connects a 2nd housing | casing so that rotation is possible.

  As a result, the input / output device can be used as if it were a notebook PC by using the microprocessor of the mobile phone by making the input / output device similar in appearance to a general notebook PC. it can.

  In the computer system, the input / output device may be a projector capable of projecting and displaying the second display signal on an external screen by the second display unit. This makes it possible to edit the content displayed on the external screen, for example, using the second keyboard. For example, the presentation content displayed on the external screen during the conference can be modified as appropriate, and the presentation can proceed smoothly. Can do.

  A mobile phone according to another aspect of the present invention is a mobile phone that can be connected to an input / output device having a first keyboard for inputting a first input signal and a first display unit for displaying the first display signal. A second keyboard for inputting a second input signal by the user's operation, and a second display unit for displaying a second display signal based on the input second input signal; A restriction signal input section for inputting a restriction signal for restricting input of the second input signal by the second keyboard and display of the second display signal by the second display section; and the input / output device; In a state where the interface unit to be connected and the restriction signal are not input, the second display signal is generated based on the second input signal and displayed on the second display part, and the restriction signal is In the input state, The first input signal is received from the keyboard through the interface unit, the first display signal is generated based on the first input signal, and the first display signal is transmitted through the interface unit. And a microprocessor for controlling to display on the first display portion.

  An input / output device according to still another aspect of the present invention is an input / output device connectable to a mobile phone having a microprocessor, a first keyboard, and a first display unit. And a second keyboard generated by the microprocessor based on the second input signal, in a state in which the operation of the keyboard and the first display unit of the second keyboard are restricted. A second display unit for displaying the display signal, and the input signal is transmitted from the second keyboard to the microprocessor, and the second display unit receives the display signal from the microprocessor. And an interface unit connected to the mobile phone.

  In the input / output device, the second keyboard has a number of keys equal to or greater than the number of keys of the first keyboard, and the second display unit has a display area area of the first display unit or greater. The display area may be as follows.

  The input / output device includes a first housing that houses the second keyboard, a second housing that houses the second display unit, the first housing, and the second housing. You may further comprise the hinge part which connects a body so that rotation is possible.

  In the input / output device, the second display unit may be capable of projecting and displaying the second display signal on an external screen.

  An input / output method according to still another aspect of the present invention is an input / output device including a cellular phone having a microprocessor, a first keyboard, and a first display unit, and a second keyboard and a second display unit. The microprocessor and the input / output device are connected, the input by the first keyboard and the display by the second display unit are regulated, and the second keyboard is used. Are transmitted to the microprocessor, a display signal is generated by the microprocessor based on the input signal, and the generated display signal is displayed on the second display unit.

  A program according to still another aspect of the present invention is a mobile phone having a first keyboard and a first display unit, and can be connected to an input / output device having a second keyboard and a second display unit. Inputting a first input signal to the telephone by the first keyboard; generating a first display signal based on the input first input signal; and generating the generated first A step of displaying a display signal by the first display unit; and a restriction signal for restricting the input of the first input signal by the first keyboard and the display of the first display signal by the first display unit. Receiving a second input signal from the second keyboard in a state in which the restriction signal is input, and a step of inputting, a step of connecting to the input / output device, and a second input signal based on the second input signal It generates a display signal, and is for executing and controlling to display the second display signal to the second display unit.

  As described above, according to the present invention, it is possible to virtually realize the functions of a personal computer by combining a high-performance microprocessor mounted on a mobile phone and an input / output device.

  Embodiments according to the present invention will be described below with reference to the drawings.

(First embodiment)
First, a first embodiment of the present invention will be described. In the drawings, the same reference numerals represent the same functions. FIG. 1 is a diagram schematically showing a configuration of a computer system according to the present embodiment.

  FIG. 4A is a diagram showing an example in which a mobile phone and an input / output device are connected by wire. As shown in the figure, the mobile phone 1 includes a keyboard 11, an LCD (Liquid Crystal Display) 12, a changeover switch 13, and an external device interface 14. The input / output device 2 includes a keyboard 21, an LCD 22, an input / output interface 23, and a circuit and a power source therein. The input / output device 2 is configured such that a first housing 2 a that accommodates an LCD 22 and a second housing 2 b that accommodates a keyboard 21 are rotatably connected via a hinge portion 24. In appearance, it has the same shape as a general notebook PC.

  As will be described later, the cellular phone 1 has a microprocessor and data communication functions such as voice (music) data, text data, still image data, and moving image data. The cellular phone 1 and the input / output device 2 are connected by an interface cable 15 via the external device interface 14 and the input / output interface 23, and function as a virtual PC.

  FIG. 2B is a diagram showing an example in which the mobile phone 1 and the input / output device 2 are connected wirelessly. In the figure, an external device interface 14 and an input / output interface 23 are interfaces for performing wireless communication. The mobile phone 1 and the input / output device 2 are connected wirelessly via the external device interface 14 and the input / output interface 23, and function as a virtual PC. At the time of wireless connection, Bluetooth standard, wireless Universal Serial Bus (abbreviated as USB) standard, IEEE802.1 standard or the like can be adopted.

  The mobile phone 1 is also provided with a changeover switch 13 for switching between the operation of the keyboard 11 and the LCD 12 of the mobile phone 1 and the operation of the keyboard 21 and the LCD 22 of the input / output device 2. When the changeover switch 13 enables the keyboard 11 and the LCD 12 of the mobile phone to operate, the mobile phone is operated by the keyboard 11 and the LCD 12 like a general mobile phone. When the changeover switch 13 disables the operation of the input / output device 2 by disabling the keyboard 11 and LCD of the mobile phone, the input / output device can be operated, and the input signal from the keyboard 21 is input / output interface. 23 and the external device interface 14 via the cable 15 or wirelessly to the internal microprocessor to execute processing related to the communication function and predetermined processing corresponding to the input signal. The image is displayed on the LCD 22 by the cable 15 or wirelessly via the external device interface 14 and the input / output interface 23. In this manner, a virtual computer system is realized by the microprocessor of the mobile phone 1 and the input / output device 2.

  FIG. 2 is a diagram showing an example in which a plurality of peripheral device interfaces 25 are provided so that peripheral devices can be connected to the input / output device 2 and operated. With this configuration, various peripheral devices connected to the peripheral device interface 25 can be operated by the microprocessor of the mobile phone 1. In this example, for example, the auxiliary storage device 26 including the HDD, the CD drive, the DVD drive, and the like and the printer 27 are operated. In the mobile phone 1 and the input / output device 2, when the auxiliary storage device 26 and the printer 27 are connected to the input / output device, settings necessary for operating the auxiliary storage device 26 and the printer 27 are automatically set by the plug and play function. Done.

FIG. 3 is a block diagram showing a configuration of the mobile phone 1 in the present embodiment.
As shown in the figure, a mobile phone 1 includes an interrupt control unit 302, a timer 303, a DMAC (Direct Memory Access Controller) 304, a microprocessor 301 including a CPU (Central Processing Unit) 305, an antenna 306, and an RF (Radio Frequency). Signal processing unit (hereinafter referred to as RF unit) 307, baseband modem 308, switching control unit 309, DSP (Digital Signal Processor) 310, RAM 311, ROM 312, audio control unit 313, speaker 314, microphone 315, MPEG-4 (Moving Picture Experts Group
phase 4) Consists of a control unit 316, a camera 317, the keyboard 11 and LCD 12, a DMA bus 320, a program IO (Input / Output) bus 321, an external device interface 14, and a power supply 323. Each unit is connected via an interface. ing. The RAM 311 is used as a temporary storage device during the processing of the microprocessor 301, downloaded from a communication partner (for example, a Web server on the center side that provides various services), or from an external storage device such as a CD drive. The read application program is stored. The ROM 312 supplies a BIOS necessary for the operation of the mobile phone 1, device drivers for peripheral devices connected to the input / output device 2, and necessary initial setting values (default values). The power supply 323 is supplied to and operated by all functions of the mobile phone 1.

  The incoming call operation of the cellular phone 1 is received by the RF unit 307 that processes a high-frequency analog signal when a call radio wave arrives at the antenna 306, undergoes analog-digital conversion, is demodulated by the baseband modem 308, and is processed by the microprocessor. This is performed by being transmitted to 301. When the reception signal is transmitted to the microprocessor 301, the CPU 305 performs a series of reception operations. The interrupt control unit 302 performs incoming interrupt control, and the timer 303 monitors the communication time.

  When the incoming call is a voice call, the microprocessor 301 controls the audio control unit 313 and the speaker 314 to reproduce via the program IO bus 321. When the audio signal is compressed in the case of music or the like, it is decompressed by the DMAC 304 and the DSP 310. When the incoming call is a video (moving image), the microprocessor 301 controls the MPEG-4 control unit 316 and the LCD 12 to display the video via the program IO bus 321. When the video signal is compressed, it is decompressed and displayed by the DMAC 304, the DSP 310, and the MPEG-4 control unit 316. When the incoming call is data, the DMAC 304 operates to store the data in the RAM 311 via the DMA bus 320, and controls the MPEG-4 control unit 316 and the LCD 12 to display the data via the program IO bus 321.

  The transmission operation of the mobile phone 1 is performed by transmitting a transmission signal to the microprocessor 301. When the transmission signal is transmitted to the microprocessor 301, the CPU 305 performs a series of transmission operations. The outgoing signal is modulated by the baseband modem 308, converted from digital to analog by the RF unit 307, and emitted from the antenna 306. In the microprocessor 301, transmission interrupt control is performed by the interrupt control unit 302 under the control of the CPU 305, and the communication time is monitored by the timer 303.

  When the call is a voice call, a voice signal is sent to the microprocessor 301 via the microphone 315, the audio control unit 313, and the program IO bus 321, and the above call operation is performed. When the transmission is an image from the camera 317, a signal is sent to the microprocessor 301 via the MPEG-4 control unit 316 and the program IO bus 321, and the above transmission operation is performed. If the transmission is data input from the keyboard 11, the data is sent to the microprocessor 301 via the program IO bus 321, and the transmission operation is performed. For example, when the transmission is a mail stored in the RAM 311, data is sent to the microprocessor 301 via the DMA bus 320 and the transmission operation is performed.

  The switching control unit 309 selects the operation of the input / output device 2 and part or all of the keyboard 11 and the LCD 12 of the mobile phone 1. The external device interface 14 connects the mobile phone 1 and the input / output device 2.

FIG. 4 is a diagram illustrating a configuration of the switching control unit 309 according to an embodiment of the present invention.
As shown in the figure, the AND circuit 401 is connected to a cellular phone keyboard interrupt signal and the signal of the changeover switch 13. The AND circuit 402 is connected to the mobile phone LCD interrupt signal and the signal of the changeover switch 13. After the logical operation is performed, these output signals are sent to the interrupt control unit 302 as an authorized mobile phone keyboard interrupt signal and an authorized mobile phone LCD interrupt signal.

  The AND circuit 403 is connected to the input / output device interrupt signal and the signal of the changeover switch 13. After the logical operation is performed, this output signal is sent to the interrupt control unit 302 as a permitted input / output device interrupt signal. Either the AND circuits 401 and 402 or the AND circuit 403 is selectively operated by the operation of the changeover switch 13. The keyboard 11 and the LCD 12 of the mobile phone 1 can operate when the interrupt signal is permitted. Similarly, the input / output device 2 becomes operable when the interrupt signal is permitted. Conversely, the keyboard 11 and LCD 12 of the mobile phone 1 that cannot send an interrupt signal cannot operate, and similarly, the input / output device 2 that cannot send an interrupt signal cannot operate. Thus, by operating the changeover switch 13, the keyboard 11 and LCD 12 of the mobile phone 1 and the input / output device 2 can be selectively operated.

  FIG. 5 is a block diagram showing the configuration of the input / output device 2 in the present embodiment.

  As shown in the figure, the input / output device 2 includes the input / output interface 23, a PnP control unit 702, a ROM 703, a graphic control unit 704, the keyboard 21 and the LCD 22, a program IO bus 707, and a power source 708. Connected through. The power supply 708 is supplied to and operated by all functions of the input / output device 2.

  As described above, the external device interface 14 of the mobile phone 1 and the external device interface 14 of the input / output device 2 are connected by wire or wirelessly, and the microprocessor 301 includes the program IO bus 321 of the mobile phone 1 and the input / output device. The input / output device 2 is operated via the second program IO bus 707 to transfer data.

  The PnP control unit 702 transmits and receives signals to and from the microprocessor 301 when the input / output device 2 is turned on, and the device address, interrupt address and priority of the input / output device 2, allocation of resources, allocation of device drivers, and the like are necessary. The setting is automatically performed so that the microprocessor 301 can operate the input / output device 2. Further, even when peripheral devices such as the auxiliary storage device 26 and the printer 27 are connected to the peripheral device interface 25 when the power of the input / output device 2 is turned on, the input / output device 2 exchanges signals with the microprocessor 301. And the necessary settings are automatically performed so that the microprocessor 301 can operate the input / output device 2 and peripheral devices.

  The ROM 703 stores a BIOS necessary for operating the input / output device 2 and a device driver necessary for operating the input / output device 2 and peripheral devices. The microprocessor 301 is activated when the input / output device 2 is started. Is loaded into the RAM 311 and used. Depending on the peripheral device, the ROM 703 may not have a device driver. At that time, the microprocessor 301 searches the ROM 312 of the mobile phone 1 and, if there is not, downloads it from the communication partner (center side) of the mobile phone 1.

  The graphic control unit 704 has a video memory, generates RGB signals from display data sent from the mobile phone 1, and sends them to the LCD 22 for display. The keyboard 21 sends an input signal to the microprocessor 301 of the mobile phone 1 to start processing related to a communication function or a program determined in advance corresponding to the input signal to execute processing. The processing result output from the microprocessor 301 is displayed on the LCD 22.

  Next, operations of the mobile phone 1 and the input / output device 2 in the present embodiment will be described. FIG. 6 is a diagram showing a basic operation flow of the mobile phone 1 and the input / output device 2 in the present embodiment.

  As shown in the figure, in this embodiment, the priority of the communication function of the mobile phone 1 is set high. When the mobile phone 1 receives an incoming call, communication processing is performed (step 1201), and the state of the changeover switch 13 is checked. If the mobile phone 1 is selected by the changeover switch 13, the display is made on the LCD 12 of the mobile phone 1 (step 1202). If the input / output device 2 is selected by the changeover switch 13, the display is made on the LCD 22 of the input / output device 2. If there is a peripheral device operation request, the peripheral device is operated (step 1204).

  Subsequently, it is checked whether there is an input by a user operation (step 1205). If the cellular phone 1 is selected by the changeover switch 13 and there is a key input from the cellular phone 1, a key input process on the keyboard 11 of the cellular phone 1 is performed (step 1206). If the input / output device 2 is selected by the changeover switch 13 and there is a key input from the input / output device 2, a key input process is performed on the keyboard 21 of the input / output device 2 (step 1207). The peripheral device is operated (step 1208).

  Note that the above is a basic flow, and emergency processing can be performed by interrupt processing without depending on this flow. These flows are controlled by the microprocessor 301.

  Hereinafter, operations of the mobile phone 1 and the input / output device 2 will be described in more detail. FIG. 7 is a flowchart showing an operation main routine of the mobile phone 1 and the input / output device 2 in the present embodiment.

  As shown in the figure, when the mobile phone 1 is turned on (Yes in step 1301), the microprocessor 301 checks the power supply of the input / output device 2. If it is turned on (Yes in step 1302), the microprocessor 301 performs PnP processing between the input / output device 2 and peripheral devices connected to the input / output device 2 (step 1303).

  Subsequently, the microprocessor 301 checks whether or not there is an incoming call to the mobile phone 1, and if there is an incoming call (Yes in step 1304), the microprocessor 301 performs a process for mobile communication (step 1305), and a display process to be described later. A subroutine is executed (step 1306), and a peripheral device operation subroutine described later is executed (step 1307). When the series of processing ends (Yes in step 1308), the microprocessor 301 executes a key input processing main routine (described later) when the input / output device 2 is powered on (step 1309). Even when there is no incoming call from the mobile phone 1 (No in step 1304), the microprocessor 301 executes a key input processing main routine when the power of the input / output device 2 is turned on (step 1309).

  On the other hand, when the input / output device 2 is not powered on (No in step 1302), the microprocessor 301 checks whether there is an incoming call to the mobile phone 1, and if there is an incoming call (Yes in step 1310), the microprocessor The mobile communication processing is performed by step 301 (step 1311), the display processing subroutine is executed (step 1312), and the peripheral device operation subroutine is further executed (step 1313). When the series of processing ends (Yes in step 1314), the microprocessor 301 executes a key input processing main routine (described later) when the power of the input / output device 2 is turned off (step 1315). Even when there is no incoming call from the mobile phone (No in step 1310), the key input processing main routine when the power of the input / output device 2 is turned off is executed (step 1315).

  FIG. 8 is a flowchart showing a key input processing main routine when the input / output device 2 is powered on in the present embodiment.

  As shown in the figure, when there is a key input (Yes in step 1401), the microprocessor 301 checks whether the input is a key input of the mobile phone 1, and in the case of the key input of the mobile phone 1 (in step 1402). Yes), it is checked by the microprocessor 301 whether the change-over switch 13 is set to be able to operate the mobile phone. If the mobile phone is operable (Yes in step 1403), the microprocessor 301 performs key input processing of the mobile phone 1 via the keyboard 11 (step 1404), and then the peripheral device operation subroutine is executed (step 1404). Step 1405).

  If the change-over switch 13 is set to disable the mobile phone operation (N in step 1403), the microprocessor 301 will indicate to the LCD 22 of the input / output device 2 that “the mobile phone key is invalid. Is displayed (step 1408), the key input process is interrupted (step 1409), and the process proceeds to the main operation routine of the mobile phone 1 shown in FIG. When the series of processing is completed (Yes in step 1406), the microprocessor 301 checks whether the power of the mobile phone is turned off, and when it remains on (Yes in step 1407), the mobile phone in FIG. 1 moves to the main operation routine. If turned off (N in S1406), the process ends.

  If the key input is not for the mobile phone 1 (No in step 1402), since the key input is from the input / output device 2, is the changeover switch 13 set to disable the mobile phone (that is, the input / output device 2 can be operated)? Is examined by the microprocessor 301. If the input / output device 2 is operable (No in step 1411), key input processing is performed via the keyboard 21 of the input / output device 2 (step 1412), and the peripheral device operation subroutine is subsequently executed. If the change-over switch 13 is set to be able to operate the mobile phone (Yes in step 1411), the microprocessor 301 (determines that the setting is wrong) to the LCD 12 of the mobile phone 1 "I / O device is invalid. An error message such as “Setting” is displayed (step 1413), the key input processing is interrupted (step 1414), and the operation shifts to the operation main routine of the mobile phone 1 shown in FIG.

  FIG. 9 is a flowchart showing a key input processing main routine when the input / output device 2 is turned off in the present embodiment.

  As shown in the figure, when there is a key input (Yes in step 1501), the microprocessor 301 checks whether the change-over switch 13 is set to enable the mobile phone 1. If the mobile phone 1 is operable (Yes in step 1502), key input processing via the keyboard 11 of the mobile phone 1 is performed under the control of the microprocessor 301 (step 1503). When the series of processing is completed (Yes in step 1506), the microprocessor 301 checks whether the power of the mobile phone is turned off, and when the power is kept on (Yes in step 1507), FIG. The operation main routine of the mobile phone 1 is moved to. If it is turned off (No in step 1507), the process ends.

  When the change-over switch 13 is set to be inoperable for the mobile phone (No in step 1502), the microprocessor 301 (determines that the setting is incorrect) via the speaker 314 of the mobile phone 1 A voice message such as “Telephone key is invalid” is output (step 1504), the key input process is interrupted (step 1505), and the process proceeds to the main operation routine of the mobile phone 1 shown in FIG.

FIG. 10 is a flowchart showing a subroutine of display processing in the present embodiment.
As shown in the figure, when there is a display process (Yes in step 1601), the microprocessor 301 checks whether the changeover switch 13 is set to be operable in the mobile phone. If the mobile phone is operable (Yes in step 1602), the microprocessor 301 performs display processing on the LCD 12 of the mobile phone 1 (step 1603), and returns to the main routine that called the subroutine.

  If the change-over switch 13 is set to be inoperable (No in step 1602), the microprocessor 301 checks whether the power of the input / output device 2 is ON. If it is ON (Yes in step 1604), the micro switch Display processing on the LCD 22 of the input / output device 2 is performed by the processor 301 (step 1605), and the process returns to the main routine that called the subroutine. When the power supply of the input / output device 2 is OFF (when the power supply is turned OFF for some reason such as out of charge or incorrect operation), the microprocessor 301, for example, “There is a display request to the input / output device. A voice message such as “the device is turned off” is output via the speaker 314 of the mobile phone 1 (step 1606), the display process is interrupted (step 1607), and the main operation routine of the mobile phone 1 from FIG. Move on.

FIG. 17 is a flowchart showing a subroutine of peripheral device operation in the present embodiment.
As shown in the figure, when there is a peripheral device operation request (Yes in Step 1701), the microprocessor 301 checks whether the power supply of the input / output device 2 is ON. When it is ON (Yes in Step 1702), It is checked whether the peripheral device is powered on. When the power is on (Yes in step 1703), it is checked whether the changeover switch 13 is set to be able to operate the mobile phone. If the mobile phone is inoperable (No in step 1704) (because the input / output device 2 can operate), the microprocessor 301 performs the peripheral device operation processing including loading the peripheral device driver (step 1705), the process returns to the main routine that called the subroutine.

  When the power of the input / output device 2 is OFF (No in step 1702), the microprocessor 301 sends an error message to the LCD 12 of the mobile phone 1 such as “There is a peripheral device operation request but the input / output device power is OFF”. Display is performed (step 1710), operation processing of peripheral devices is interrupted (step 1711), and the operation main routine of the mobile phone 1 is started.

  When the power supply of the peripheral device is OFF (No in Step 1703), the microprocessor 301 checks whether the changeover switch 13 is set to be able to operate the mobile phone. When the mobile phone is operable (Yes in Step 1707), the microprocessor 301 displays an error display on the LCD 12 of the mobile phone 1 such as “I / O device is disabled” or “Peripheral device power is OFF”. (Step 1708), the operation processing of the peripheral device is interrupted (step 1711), and the operation main routine of the mobile phone 1 is started.

  If the mobile phone is inoperable (No in step 1707), the microprocessor 301 displays, for example, “Peripheral device power is OFF” on the LCD 22 of the input / output device 2 (step 1709), and performs peripheral device operation processing. The operation is interrupted (step 1711), and the operation main routine of the mobile phone 1 is started.

  If the mobile phone is operable (Yes in step 1704), the microprocessor 301 displays an error message on the LCD 12 of the mobile phone 1 such as "I / O device is invalid" (step 1706) The operation processing of the device is interrupted (step 1711), and the operation main routine of the mobile phone 1 is started.

  Above, description of operation | movement of the mobile telephone 1 in this embodiment and the input / output device 2 is complete | finished.

  With the configuration and operation described above, the computer system according to the present embodiment has the following effects.

  The first effect is the superiority of technical or intellectual assets such as various standards, functions, interfaces, programs, data, data representations, peripheral devices, and operation methods established so far in the PC and mobile phone fields. It is possible to create new value by selectively inheriting and utilizing the products. For example, a communication function of a mobile phone allows a large-scale application program that has been impossible to achieve with a mobile phone to be downloaded to an input / output device and executed. In addition, in order to use Internet browsers, games and business software developed for PCs on mobile phones, it has been necessary to redesign programs and data in accordance with mobile phone display devices. By adopting a screen of the same standard as the PC (referred to as VGA, SGA, XGA, etc. in the technical field) for the display device of the input / output device, the porting work can be greatly reduced. Furthermore, since each function including the keyboard is released from physical restrictions, the user interface and accessibility can be greatly improved.

  The second effect is that the computing resources of the mobile phone in the standby mode can be utilized to the maximum extent. The mobile phone and the input / output device can perform parallel processing by establishing not only one-to-one connection but also one-to-multiple, multiple-to-one, and multiple-to-multiple connections. In a typical example, in a computing system called “server computing” or “network computing” in the computer technology field in the case of one-to-many, computing of a mobile phone or a communication partner (center side) A system with high cost performance using resources as a server can be realized. In the case of multiple one-to-one, parallel processing called “multiple programming multiple processing” in the computer technology field can be realized. In the case of multiple-to-multiple, a high-speed and large-capacity information processing system that simultaneously uses multiple computing resources called “grid computing” in the computer technology field can be realized.

  The third effect is that a “simultaneous broadcast communication” system can be realized when the mobile phone and the input / output device are connected in a one-to-multiple manner using the characteristic that the mobile phone is owned by each individual. is there. In the case of multiple one-to-one, a “command system” can be realized. Furthermore, in the case of multiple to multiple, a “conference system” can be realized.

  The fourth effect is an energy saving effect. Much of the power consumption of the PC is due to the mounted microprocessor. By saving this and sharing it with the microprocessor mounted on the mobile phone, significant energy saving can be realized.

  A fifth effect is that the functions and functions of the mobile phone and the input / output device are shared, so that the architecture and implementation of each can be simplified and simplified. As a result, the mobile phone can be further enhanced in function, lightness, and smallness, and the input / output device can be equipped with all necessary functions according to applications such as business use and hobby use.

  The sixth effect is that the input / output device can be used on the lap while the mobile phone is put in a pocket or a bag by adopting wireless for the interface between the mobile phone and the input / output device.

  The seventh effect is that not only a conventional pay OS but also an OS that becomes open source software can be adopted as the OS (Operating System) of the computer system in the present embodiment. A wide variety of application programs can be developed by making full use of technologies adopted in mobile phones called Java (registered trademark) and BREW.

  The eighth effect is that the OS of the computer system in this embodiment and the OS for operating the communication function of the mobile phone may be the same or different, and a so-called Dual-OS system can be obtained. . For example, a high-speed and robust real-time OS can be used as an OS for operating a communication function, and a multi-task OS that emphasizes compatibility with a PC can be used as an OS for a virtual personal computer system or virtual personal computer device.

  The ninth effect is improvement of the business model. First, by physically separating the mobile phone and the input / output device, it was possible to develop and develop the input / output device of the present invention for companies that have not been able to enter the development and manufacturing of mobile phones due to the complexity of the system. The manufacturing door will be greatly opened. Next is the eradication of illegal copies of content or software. Since the input / output device of the present invention does not have a microprocessor for executing a program, it is necessary to always use a mobile phone for copying. In this case, for example, in the case of paid software, if a mechanism that enables copying for the first time after confirmation with the communication partner (center side) is incorporated into the mobile phone, proper distribution of content or software, including charging problems, will be carried out. Can be promoted.

  The tenth effect is that so-called TCO (Total Cost of Ownership) such as upgrade costs, labor costs of system departments and system administrators is improved and compatible. The BIOS, driver, OS, and application program stored in the mobile phone or input / output device can be managed and updated in a batch by downloading from the center using the mobile phone communication function, so TCO can be significantly improved. . Even if an input / output device manufactured by a manufacturer different from the input / output device manufactured or certified by the mobile phone manufacturer is not guaranteed to operate as it is, an appropriate BIOS, driver, OS, and application program are input from the center side. Compatibility can be ensured by downloading to the output device.

  The eleventh effect is information protection. For example, when a mobile phone is lost, information leakage can be prevented by deleting the memory of the mobile phone from the center side. Also, in case the input / output device is lost, information leakage can be prevented by setting the mobile phone of the connection partner and the encryption key so that other people cannot use the input / output device. At the same time, if the mobile phone and the input / output device are lost, information storage can be prevented by deleting both memories from the center and locking the download.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. FIG. 12 is a diagram showing the configuration of the input / output device 2 in the present embodiment. Note that in the present embodiment and the embodiments described below, the same reference numerals are given to the same components and functions as in the first embodiment, and the description will be omitted or simplified.

  As shown in the figure, in this embodiment, the input / output device 2 is equipped with a USB interface 801 and a wireless LAN interface 802 so that peripheral devices can be connected and operated. Connect and operate peripheral devices wirelessly. As in the case of the first embodiment, the device driver necessary for the operation is downloaded by the communication function of the mobile phone 1, stored in advance in the ROM 312 of the mobile phone 1, or the input / output device 2 The data is loaded from the ROM 703 to the RAM 311 by one of the methods, and is executed by the microprocessor 301.

  In the present embodiment, the configuration of the mobile phone 1 and the other operations of the microprocessor 301 are the same as those in the first embodiment, and a description thereof will be omitted.

(Third embodiment)
Next, a third embodiment of the present invention will be described. FIG. 13 is a diagram showing the configuration of the input / output device 2 in the present embodiment.

  As shown in the figure, in the present embodiment, a wireless Bluetooth interface (hereinafter referred to as BT interface) 903 is connected to the audio control unit 902, and a hands-free receiver 904 and a microphone 905 are connected. Voice communication can be performed while operating the keyboard 11. A camera 901 is also connected to the graphic control unit 704, and can capture and process a captured image.

  In the present embodiment, the configuration of the mobile phone 1 and the other operations of the microprocessor 301 are the same as those in the first embodiment, and a description thereof will be omitted.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. In this embodiment, a new interface is provided for each of the mobile phone 1 and the input / output device to improve the throughput of the entire system.

FIG. 14 is a diagram showing a configuration of the mobile phone 1 according to the present embodiment.
As shown in the figure, in this embodiment, in addition to the external device interface 322 connected to the program IO bus 321 in the first embodiment, the external device interface 16 connected to the DMA bus 320 is added. ing. The external device interface 14 connected to the program IO bus 321 is simple in terms of logical circuit structure, but for example, by high-speed and large-capacity data transfer between the mobile phone 1 and the input / output device 2 such as when transferring moving images. As a result, a load is applied to the program IO bus 321, which may adversely affect the operation of the mobile phone 1. In order to avoid this, an external device interface 16 connected to the DMA bus 320 is added, and high-speed and large-capacity data transfer is performed via the external device interface 16.

FIG. 15 is a diagram showing a configuration of the input / output device 2 in the present embodiment.
As shown in the figure, a program IO bus 321 and a program IO bus 707 are connected via an external device interface 14 and an input / output interface 23 of the mobile phone 1, and a DMA bus 320 of the mobile phone 1 is A DMA bus 1006 is realized by connecting to the external device interface 16 via the input / output interface 23 of the input / output device 2, and in addition to the PnP control unit 702 and ROM 703, a DSP 1002, RAM 1003, and auxiliary storage control unit 1004 are provided. The auxiliary storage device 26 is connected via the auxiliary storage control unit 1004.

  Transfer of large-capacity data between these units and the DSP 310, RAM 311 and ROM 312 of the mobile phone 1 is performed via the DMA bus 1006 under the control of the DMAC 304. The DSP 1002 is used via the DMA bus 1006 during audio data processing and graphic data processing. Thus, the overall throughput can be improved by controlling the microprocessor 301 so that high-speed and large-capacity data transfer is performed not via the program IO bus 707 but via the DMA bus 1006.

  In addition to data such as music, still images, and moving images, the RAM 1003 can store an application program downloaded from a communication partner (center side) or read from the auxiliary storage device 26. There are two ways to execute the stored program.

  The first method is a method in which the physical addresses of the RAM 311 of the mobile phone 1 and the RAM 1003 of the input / output device 2 are made continuous and called to the microprocessor 301 for each instruction. In order to reduce the influence of the delay time of the DMA bus 320 and the external device interface 16 of the mobile phone 1, the input / output interface 28 of the input / output device 2 and the DMA bus 1006, the microprocessor 301 adopts an instruction cache method, Burst transfer is performed from the RAM 1003 to the instruction cache memory.

  In the second method, the RAM 1003 of the input / output device 2 is configured as a virtual memory (including the auxiliary storage device 26 if necessary), and a logical address is assigned while swapping with the RAM 311 of the mobile phone 1. It is a method to execute. For further high-speed processing, each program in the RAM 1003 is transferred to the RAM 311 and executed. In order to shorten the response time of each program, each program process is transferred to the RAM 311 (loaded into the RAM 311) to execute parallel processing.

  In the present embodiment, the configuration of the mobile phone 1 and the other operations of the microprocessor 301 are the same as those in the first embodiment, and a description thereof will be omitted.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. In the present embodiment, a device for further improving the throughput is provided as compared with the case of the fourth embodiment.

FIG. 16 is a diagram showing a configuration of the mobile phone 1 according to the present embodiment.
As shown in the figure, in this embodiment, in addition to the external device interface 14 connected to the program IO bus 321 in the first embodiment, the external device interface connected to the high-speed bus 601 directly connected to the CPU 305. 17 has been added. The external device interface 17 is logically combined with the external device interface 14 to form three types of low-speed, medium-speed, and high-speed dedicated buses inside the input / output device 2, and further transfer large-capacity and high-speed data. To be able to. This function is particularly effective when a tuner is connected to the input / output device 2 to receive TV broadcasts such as satellite digital TV broadcasts and mobile broadcasts.

FIG. 17 is a diagram showing a configuration of the input / output device 2 in the present embodiment.
As shown in the figure, the microprocessor 301 connects the program IO bus 321 of the mobile phone 1 and the program IO bus 707 of the input / output device 2, the external device interface 14 of the mobile phone 1 and the input / output interface of the input / output device 2. 23, and the external device interface 17 connected to the high-speed bus 601 in the mobile phone 1 and the input / output interface 29 of the input / output device 2 are connected to operate the bus management unit 1102. The bus management unit 1102 implements a DMA bus 1105, a medium speed bus 1104, and a program IO bus 1103. A DMA bus 1105 is used for high-speed and large-capacity data transfer such as the auxiliary storage device 26 connected via the ROM 703, DSP 1002, RAM 1003, and auxiliary storage control unit 1004. The medium-speed bus 1104 is used for medium-speed and medium-capacity data transfer such as the audio control unit 902, the USB interface 801, and the wireless LAN interface 802. The program IO bus 1103 is used for low-speed and small-capacity data transfer such as the keyboard 21.

  With this configuration, the load on the DMA bus 320 and the program IO bus 321 of the mobile phone 1 can be reduced, and the input / output device 2 uses different buses according to the characteristics of high-speed, medium-speed, and low-speed devices or devices. Therefore, the overall throughput can be further improved.

  In the present embodiment, the configuration of the mobile phone 1 and the other operations of the microprocessor 301 are the same as those in the first embodiment, and a description thereof will be omitted.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described. In the present embodiment, it is assumed that a plurality of mobile phones 1 and input / output devices 2 are used, and address designation for each device is performed. Note that in this embodiment, the configurations of the mobile phone 1 and the input / output device 2 are the same as those in the first embodiment, so that the description thereof will be omitted and only the operation will be described.

  FIG. 18 is a flowchart showing a key input processing main routine when the input / output device 2 is powered on in this embodiment. In addition, the same code | symbol is attached | subjected about the process similar to FIG. 8 of the said 1st Embodiment, and description is abbreviate | omitted.

  As shown in the figure, when there is a key input of the input / output device 2, the microprocessor 301 checks whether there is an address designation for the cellular phone 1, and when there is an address designation (Yes in step 1801), the input / output device. When the key input routine of No. 2 operates and there is no address designation (No in Step 1801), the microprocessor 301 moves to the mobile phone main routine. With this configuration, it is possible to specify a specific mobile phone from the input / output device 2 and input an input signal from the keyboard 21, for example, from one input / output device 2 to a plurality of mobile phones 1. Parallel processing called multiple programming and multiple processing can be realized.

  FIG. 19 is a flowchart showing a display processing subroutine in the present embodiment.

  As shown in the figure, when there is a display process on the input / output device 2, the microprocessor 301 checks whether there is an address designation for the input / output device 2, and if there is an address designation (Yes in step 1901), When the display processing subroutine for the output device 2 operates and there is no address designation (No in step 1901), the microprocessor 301 moves to the mobile phone main routine. With this configuration, it is possible to designate a specific input / output device 2 from the mobile phone 1 and display a display signal on the LCD 22 of the input / output device 2. Simultaneous broadcast communication to the device 2 becomes possible.

FIG. 20 is a flowchart showing a peripheral device operation subroutine according to the present embodiment.
As shown in the figure, when there is a peripheral device operation request, the microprocessor 301 checks whether there is an address designation for the input / output device 2. When there is an address designation (Yes in step 2001), the input / output device 2 is checked. When the operation subroutine of the connected peripheral device operates and there is no address designation (No in step 2001), the microprocessor 301 moves to the mobile phone main routine. With this configuration, it is possible to designate a specific input / output device 2 from the mobile phone 1 and operate peripheral devices connected to the input / output device 2.

  The present invention is not limited to the above-described embodiments and the like, and various modifications are possible.

  In each of the embodiments described above, the input / output device 2 is capable of rotating the first casing 2a in which the LCD 22 is accommodated and the second casing 2b in which the keyboard 21 is accommodated by the hinge portion 24. Although it had the connected form, it is not restricted to this form.

  FIG. 21 is a diagram schematically showing the configuration of another input / output device 2 according to another embodiment of the present invention. As shown in the figure, in the present embodiment, the mobile phone 1 and the input / output device 2 are connected wirelessly, and the input / output device 2 has a keyboard 21, LCD 22, input / output interface 23 as in the above embodiments. However, the configuration of the keyboard 21 is different from the above embodiments. That is, the keyboard 21 is configured to have the same or similar key arrangement as that of the keyboard 11 of the mobile phone 1 for some or all of the input functions, and is stored on the back surface of the LCD 22 when not in use. Like that. With this configuration, the user can operate the input / output device 2 with one hand, and the key layout of the keyboard 21 is familiar with mobile phones, so it is easy to use and convenient to carry.

  In the above-described embodiment, the display signal generated by the microprocessor 301 of the mobile phone 1 is displayed on the LCD 22. However, the keyboard 21 and other devices capable of displaying the display signal are combined for input / output. The apparatus 2 may be configured.

  FIG. 22 is a diagram illustrating an example in which the input / output device 2 is configured by applying a projector as a display unit. As shown in the figure, the input / output device 2 includes a keyboard 21 and a liquid crystal projector 31. The cellular phone 1 and the keyboard 21 are connected via the external device interface 14 and the input / output interface 23, and the keyboard 21 and the liquid crystal projector 31 are connected via the peripheral device interface 25. A display signal generated by the microprocessor 301 of the mobile phone 1 based on an input signal from the keyboard 21 is output to the projector 31 via the keyboard 21, and a liquid crystal panel (not shown) inside the liquid crystal projector 31 and the lens 33. Is projected and displayed on an external screen (not shown).

  With this configuration, for example, during a presentation in a meeting, the content projected and displayed on the external screen can be edited (corrected) with the keyboard 21 and displayed on the external screen, and this is appropriately handled when there is an error in the presentation content. Can make presentations go smoothly.

  Further, as shown in FIG. 23, a keyboard 21 may be incorporated in a liquid crystal projector 31. In this case, the liquid crystal projector 31 may be provided with a cover 32 for covering the keyboard 21 when not in use to prevent malfunction.

  FIG. 24 is a diagram illustrating an example in which the input / output device 2 is configured by applying a liquid crystal television as a display unit. As shown in the figure, the input / output device 2 includes a keyboard 21 and a liquid crystal television 41. The cellular phone 1 and the keyboard 21 are connected via the external device interface 14 and the input / output interface 23, and the keyboard 21 and the liquid crystal television 41 are connected via the peripheral device interface 25. A display signal generated by the microprocessor 301 of the mobile phone 1 based on an input signal from the keyboard 21 is output to the liquid crystal television 41 through the keyboard 21 and displayed on the LCD 42 of the liquid crystal television 41.

  This makes it possible to construct a virtual PC system simply by carrying the mobile phone 1 and the keyboard 21 in a place where a liquid crystal television is present, such as a living room in the home.

  In the above-described embodiment, the LCD is used for the display unit, but other display devices such as a CRT may be used. Further, the mobile phone 1 is a so-called straight type mobile phone in which the LCD 11 and the keyboard 12 are provided on the same surface. However, the mobile phone 1 may take various forms such as a so-called folding type, a slide type, and a rotary open type.

1 is a diagram schematically illustrating a configuration of a computer system according to a first embodiment of the present invention. It is the figure which showed schematically the other structure of the computer system which concerns on 1st Embodiment. It is the figure which showed the structure of the mobile telephone 1 in 1st Embodiment. It is the figure which showed the structure of the switching control part 309 in 1st Embodiment. It is the figure which showed the structure of the input / output device 2 in 1st Embodiment. It is a figure which shows the flow of a basic operation | movement of the computer system in 1st Embodiment. It is a flowchart which shows the operation | movement main routine of the computer system which concerns on 1st Embodiment. It is a flowchart which shows the key input processing main routine at the time of the power supply of the input / output device 2 in the computer system which concerns on 1st Embodiment. It is a flowchart which shows the key input process main routine at the time of the power supply OFF of the input / output device 2 in the computer system which concerns on 1st Embodiment. It is a flowchart which shows the subroutine of the display process in the computer system which concerns on 1st Embodiment. Stable peripheral device operation in the computer system according to the first embodiment It is the figure which showed the structure of the input / output device 2 in the 2nd Embodiment of this invention. It is the figure which showed the structure of the input / output device 2 in the 3rd Embodiment of this invention. It is the figure which showed the structure of the mobile telephone 1 in the 4th Embodiment of this invention. It is the figure which showed the structure of the input / output device 2 in the 4th Embodiment of this invention. It is the figure which showed the structure of the mobile telephone 1 in the 5th Embodiment of this invention. It is the figure which showed the structure of the input / output device 2 in the 5th Embodiment of this invention. It is a flowchart which shows the key input processing main routine at the time of the power supply ON of the input / output device 2 in the 6th Embodiment of this invention. It is a flowchart which shows the display processing subroutine in the 6th Embodiment of this invention. It is a flowchart which shows the peripheral device operation subroutine in the 6th Embodiment of this invention. It is the figure which showed schematically the structure of the other input / output device 2 which concerns on other embodiment of this invention. In other embodiment of this invention, it is the figure which showed the example which applied the projector as a display part and comprised the input / output device 2. FIG. It is the figure which showed the example which incorporated the keyboard 21 in FIG. 22 in the projector. In other embodiment of this invention, it is the figure which showed the example which applied the liquid crystal television as a display part, and comprised the input / output device 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mobile phone 2 ... Input / output device 2a ... 1st housing | casing 2b ... 2nd housing | casing 11, 21 ... Keyboard 12, 22, 42 ... LCD
DESCRIPTION OF SYMBOLS 13 ... Changeover switch 14, 16, 17 ... External device interface 15 ... Interface cable 23, 28, 29 ... Input / output interface 24 ... Hinge part 25 ... Peripheral device interface 26 ... Auxiliary storage device 27 ... Printer 31 ... Liquid crystal projector 301 ... Micro Processor 302 ... Interrupt control unit 303 ... Timer 304 ... DMAC
305 ... CPU
309: switching control unit 311, 1003 ... RAM
312 703 ROM
322 ... External device interface 702 ... PnP control unit

Claims (21)

A computer system comprising a mobile phone and an input / output device,
The mobile phone is
A microprocessor;
A first keyboard for inputting a first input signal by a user operation;
A first display unit for displaying a first display signal generated by the microprocessor based on the input first input signal;
A first interface unit for connecting the microprocessor and the input / output device;
A regulation signal input unit that inputs a regulation signal that regulates the input of the first input signal by the first keyboard and the display of the first display signal by the first display unit to the microprocessor; ,
The input / output device is
A second keyboard for inputting a second input signal by the user's operation in a state where the restriction signal is input to the microprocessor;
A second display unit for displaying a second display signal generated by the microprocessor based on the second input signal;
The second keyboard transmits the second input signal to the microprocessor, and the second display unit is connected to the first interface unit in order to receive the second display signal from the microprocessor. And a second interface unit. The computer system of claim 1,
The first keyboard has a first number of keys;
The first display unit has a first display area area;
The second keyboard has a second number of keys equal to or greater than the first number;
The computer system, wherein the second display unit has a second display region area that is equal to or larger than the first display region area. The computer system of claim 1,
The mobile phone has a communication unit that performs wireless communication via a network,
The microprocessor performs the wireless communication by the communication unit based on the second input signal from the second keyboard, and generates the second display signal based on a communication result of the wireless communication. The computer system characterized by controlling to display on the display part. The computer system according to claim 3.
The microprocessor controls the program executed by the microprocessor based on the second input signal or the second display signal to be received by the communication unit via the network. Computer system. The computer system according to claim 4.
The input / output device includes a third interface unit for connecting to an external device,
The microprocessor controls the communication unit to receive, as the program, a device driver for operating the external device via the second keyboard or the second display unit via the network. A computer system characterized by that. The computer system according to claim 5, wherein
The microcomputer has means for detecting a connection between the external device and the third interface unit, and controls to receive the device driver when the connection is detected. . The computer system according to claim 4.
The mobile phone is
A first storage unit for storing the received program;
A computer system comprising: a second storage unit for loading and temporarily storing the program stored in the first storage unit in a state where the restriction signal is input. The computer system according to claim 4.
The input / output device includes a first storage unit for storing the received program via the first and second interface units,
The mobile phone is configured to load and temporarily store the program stored in the first storage unit via the first and second interface units in a state where the restriction signal is input. A computer system comprising a second storage unit. The computer system according to claim 7.
The first storage unit stores a BIOS for operating the input / output device,
The microprocessor has means for detecting that the first interface unit and the second interface unit are connected, and controls to load the BIOS when the connection is detected. A featured computer system. The computer system according to claim 8.
The first storage unit stores a BIOS for operating the input / output device,
The microprocessor has means for detecting that the first interface unit and the second interface unit are connected, and the BIOS is connected to the first and second interfaces when the connection is detected. A computer system characterized by being controlled to be loaded via an interface unit. The computer system according to claim 7.
The first storage unit stores first identification information for identifying the mobile phone and second identification information for identifying the input / output device;
The input / output device includes a third storage unit that stores the first identification information and the second identification information,
The microprocessor transmits the second display signal together with the second identification information to the second display unit,
The computer system, wherein the second keyboard transmits the second input signal together with the first identification information to the microprocessor. The computer system according to claim 8.
The mobile phone has a third storage unit that stores first identification information for identifying the mobile phone and second identification information for identifying the input / output device,
The first storage unit stores the first identification information and the second identification information,
The microprocessor transmits the second display signal together with the second identification information to the second display unit,
The computer system, wherein the second keyboard transmits the second input signal together with the first identification information to the microprocessor. The computer system of claim 1,
The input / output device is
A first housing that houses the second keyboard;
A second housing for accommodating the second display section;
A computer system comprising: a hinge portion that rotatably connects the first housing and the second housing. The computer system of claim 1,
The computer system, wherein the input / output device is a projector capable of projecting and displaying the second display signal on an external screen by the second display unit. A mobile phone connectable to an input / output device having a first keyboard for inputting a first input signal and a first display for displaying a first display signal,
A second keyboard for inputting a second input signal by the user's operation;
A second display unit for displaying a second display signal based on the input second input signal;
A restriction signal input unit for inputting a restriction signal for restricting input of the second input signal by the second keyboard and display of the second display signal by the second display part;
An interface unit connected to the input / output device;
In a state where the restriction signal is not input, the second display signal is generated based on the second input signal and displayed on the second display unit, and the restriction signal is input. The first input signal is received from the first keyboard via the interface unit, the first display signal is generated based on the first input signal, and the first display signal is transmitted to the interface. And a microprocessor that controls the display to be displayed on the first display unit via the unit. An input / output device connectable to a mobile phone having a microprocessor, a first keyboard, and a first display unit,
A second keyboard for inputting an input signal by a user operation in a state where operations of the first keyboard and the first display unit are restricted in the mobile phone;
A second display unit for displaying a second display signal generated by the microprocessor based on the second input signal;
An interface unit that transmits the input signal from the second keyboard to the microprocessor, and the second display unit receives the display signal from the microprocessor; Characteristic input / output device. The input / output device according to claim 16,
The second keyboard has a number of keys equal to or greater than the number of keys of the first keyboard;
The input / output device, wherein the second display section has a display area area larger than a display area area of the first display section. The input / output device according to claim 17,
A first housing that houses the second keyboard;
A second housing for accommodating the second display section;
An input / output device further comprising: a hinge portion that rotatably connects the first housing and the second housing. The input / output device according to claim 17,
The input / output device, wherein the second display unit can project and display the second display signal on an external screen. A method of performing input / output by a cellular phone having a microprocessor, a first keyboard and a first display unit, and an input / output device having a second keyboard and a second display unit,
Connecting the microprocessor and the input / output device;
Restricting input by the first keyboard and display by the second display unit;
Sending an input signal from the second keyboard to the microprocessor;
Generating a display signal by the microprocessor based on the input signal;
The input / output method, wherein the generated display signal is displayed on the second display unit. A mobile phone having a first keyboard and a first display unit, which can be connected to an input / output device having a second keyboard and a second display unit,
Inputting a first input signal with the first keyboard;
Generating a first display signal based on the input first input signal;
Displaying the generated first display signal on a first display unit;
Inputting a restriction signal for restricting input of the first input signal by the first keyboard and display of the first display signal by the first display unit;
Connecting to the input / output device;
In a state where the restriction signal is input, a second input signal is received from the second keyboard, a second display signal is generated based on the second input signal, and the second display signal is And a step of controlling to display on the second display unit.

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