JP3328919B2 - Input subsystem for information equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention supports data input to the portable information device, relates to the input subsystem information equipment to be able to use mobile information device, in particular the display of the mobile information device It is intended to provide an input resource which is used as it is and which is not provided in the portable information device.

[0002]

2. Description of the Related Art In recent years, ultra-small portable information devices smaller than notebook-sized or sub-note-sized portable information devices (personal computers, personal word processors), such as personal data assistants and personal handy devices. -The phone system has been actively developed and commercialized. Note-sized or sub-note-sized portable information devices have a full keyboard, but generally require a bag that can hold A4 or larger materials when moving. It is difficult to go out and carry easily. Ultra-small portable information devices are small enough to fit in clothing pockets and are easy to carry. However, ultra-small portable information devices generally do not have a full keyboard, and are not suitable for inputting and editing coherent character strings. In the case of personal information management using paper, notebooks and notebooks are often used in combination as portable devices. Using them together improves the usability in that they can be used properly depending on the data to be handled and the portability.

[0003] In information devices, data availability and consistency are important. Therefore, even when data is input using different types of information devices depending on the application or the like, data is mutually exchanged. Exchange / communicate,
It is preferable to make a backup. Such data exchange / communication and backup impose a time or psychological burden on the user. Further, when different types of information devices are used together, data may be individually input to another type of information device even for the same purpose. For example, data that is originally handled using a notebook-type information device may be handled using an ultra-small information device in some cases. In the analogy of the relationship between a notebook and a notebook, if the small size is more important even if the productivity is a little lower, writing in a notebook even if it is usually written in a notebook There is. In this way, not only for different purposes but also for the same purpose, if the information is separately input to different types of information devices, the demand for maintaining data consistency, consistency and backup is further increased. . As described above, using different types of information devices depending on the case has a problem in data availability and consistency.

[0004] The present inventors have conducted intensive research on how to achieve good usability according to the case without using different types of information equipment, and have obtained the following findings.

That is, notebook-type and sub-note-type portable information devices (mainly notebook-type personal computers and notebook-type word processors) are often operated in a multi-window system. In general, if there are exceptions, when multiple windows are displayed on a laptop or sub-note type portable information device display with a small area, one window will fill the display even if there is overlap. And the size of each window is much smaller than the size of the display.

On the other hand, in a pocket-type ultra-compact information device,
Although the specific display area is small, there is no particular problem if the application specifies it. For example, calculators, ebooks, electronic dictionaries, and schedule applications require a small area display.

[0007] Therefore, by combining a plurality of displays of pocket type ultra-small information devices, it can be used as a substitute for displays of notebook and sub-note type information devices. The only thing needed for notebook and sub-note type applications is a full keyboard.

The present invention has been made in view of the above findings and aims to combine a plurality of ultra-small information devices with a full keyboard and to reliably perform backup and data consistency between the ultra-small information devices.

[0009] The following technologies related to the present invention include a light sizing technology and a backup technology.
There are data integrity technology and multi-display technology.

[0010] 1. Light sizing technology Computers and their peripherals are also being downsized, called downsizing, due to technological innovations aimed at making them lighter, lighter and shorter. Even notebook personal computers and pocket personal computers have considerable capabilities. However, here, physical conditions of a human being, such as a user, such as the size and visual acuity of a finger, and physical conditions of a target to be handled, such as a case where a document is displayed horizontally wide and a case where a document is displayed long vertically There is a need for a technology that can be harmonized with the above. This is called a light sizing technique.

A first example of light sizing is a Fujitsu Oasis pocket (trade name or trademark) that is sized to fit in a small bag or jacket pocket and equipped with full keys. This is not just reduced in size, but also made in consideration of the size of the user's finger. The idea was to find a compromise between a size that can be carried in a bag or carried aside (such as an A4 notebook size) and a size that fits in a clothes pocket. It can be said that it leads to the claim that it is OK.

[0012] As a second example, B5 size when stored,
IB with a keyboard that expands to A4 size when opened
Company M's notebook personal computer ThinkPa
d701c (trade name or trademark). This is an example that resolves two conflicting items: downsizing, which improves portability and ease of storage, and the fact that it is better to have a certain size keyboard.

As a third example, there is a word processor Darwin of Casio Computer which can rotate a display and use it vertically or horizontally. This can be regarded as one of the techniques adapted to the circumstances of the operation target.

As a fourth technology, a portable type larger or higher-performance facility can be used by storing a portable information device used during or on the move in a base installed in an office or home. There is a combination technology of Duo / Duo-Doc (both trade names or trademarks) by Macintosh of Apple Computer. The Duo is used as a normal notebook personal computer while moving or at the destination, while the Duo-Doc is returned to the office or the like.
The idea is to use a Duo-disc for the disk and CPU as it is, while using a Duo-Doc larger size for the human interaction system such as the display and keyboard. However, when using Duo, Duo-Doc is idle, so I hate having more than necessary.

As described above, efforts for light sizing according to human beings and work targets have already started.
Speaking of the fusion of the notebook / subnote / pocket type, one solution for this purpose is found in the Fujitsu Oasis pocket. However, it is clear that the Fujitsu Oasis Pocket does not move to the idea of a combination of a full keyboard and multiple portable information devices. The idea of storing a Duo in a Duo-Doc is similar in form to the idea of storing a portable information device in a full keyboard having a mounting portion, but the former assumes only one Duo. However, the latter has a decisive difference in that it assumes two or more pocket devices. The former has one Duo, so 2
There is no purpose to measure data consistency when two information devices are attached.

2. Backup and matching technologies Portable personal word processors and personal computers
With the spread of computers, the importance of backup from the viewpoint of data protection is increasing. Magazines related to personal computers also discuss various backup timings and methods. Until now, backup has not been possible unless the user explicitly gives instructions, and a file server on a network or the like has only been provided as a backup means. In recent years, a large hard disk has been commercialized for portable transportation in such a manner that it can be easily connected, but this is only a recording medium and cannot be used alone.

Further, the exchange of data between a portable information device and a desktop device at a home position in an office or home is increasing. In other words, data input during or at the destination is performed using a portable information device, and after returning to the office or home, uploading to a desktop information device to organize and process the data. In this case, the data created in step (1) is downloaded to a portable information device, and is taken out during use or at a destination. However,
Consistency or consistency when data is independently added, deleted, or edited between the two is not directly supported. As software technology,
Although a system for maintaining consistency found in a distributed database on a network or the like is known, there is no known device that automatically performs consistency upon mounting.

As described above, the idea of automatically / semi-automatically performing data consistency / consistency / backup when two independent portable information devices are mounted cannot be conceived from the prior art.

3. Multi-display technology In the present invention, for example, there is an effect that two information devices are combined to obtain a double display area as a result. Formally, the present invention is related to a multi-display in that it has two displays. However, the present invention is not to the extent conceivable from multi-display technology as described below.

Today, multi-window systems have become widespread, and various operating objects are simultaneously displayed to perform cooperative work. For a user who works in this manner, the current display area of the computer display is not always sufficient. In addition, when using a display when interacting with a person, such as a customer contact of a bank or a travel agency, it has been inconvenient to control the direction in which to look at the display and control the display contents. Further, in the case of a display of a portable device, when the display area is small and the display amount is large, the usability is reduced.

Multi-display technology has cast light on such a problem (Flat Panel Display 1994, pp. 80-82). Conventional techniques relating to the multi-display can be roughly classified according to the above three problems.

First, the idea of the multi-display itself is disclosed in Japanese Patent Application Laid-Open No. H5-265029. Further, Japanese Patent Application Laid-Open No. Hei 5-61567 discloses a technique relating to a usage method in which a keyboard is slid to set an easily viewable angle when heading to any display. Although the above example is based on the assumption that a multi-display is fixedly and integrally formed, an additional display is connected to an existing computer (usually having one display). A technology for realizing a multi-display by means of Nikkei Microdevice, No. 116, pp62-
65, February 1995).

Next, a technique in which the direction of the two display screens is reversed so that a person who is in front of the screen and interacts with the user can view the display screen in the same posture is disclosed in, for example, JP-A-5-197444. The idea is to fold a normal display in half and fold it away. In this case, the number of displays is apparently two, but the display screen is not enlarged as usual. In the method proposed in Japanese Patent Application Laid-Open No. 5-61635, the second display is pulled out of the storage portion and spreads upward. May be folded forward so that the other party can see it. Furthermore, IEICE EID9
4-100, HC94-74 (December 1994) also introduces an idea of realizing a folding two-screen display for a portable information device and using one as a display facing the other. Thus, it can be said that the two-screen user interface has a possibility of being effectively used in a place of communication.

Lastly, especially for portable information equipment, the problem of the display being small and difficult to use is solved by the above-mentioned IEICE EID94-100 and HC94-74.
(December 1994) provides an idea of providing a folding two-screen display, digitizing and displaying a keyboard and the like, and using the maximum spread area as the display. A similar idea is proposed in Japanese Patent Application Laid-Open No. Hei 4-369027. These are characterized in that the operation system (such as a keyboard) is also digitized and that the operation system is folded.

The effectiveness of the multi-display technology has been sought from the viewpoint of the user interface as a whole, and many ideas have already been proposed. Multi-display technology installs multiple displays,
Alternatively, it is a technique of adding a plurality. When this technology is applied to mobile devices in particular, if consideration is given to the operation during movement or in a limited space at the destination, the actual system is disclosed in Japanese Unexamined Utility Model Publication No. 2-7022.
There is a possibility that the area enlargement method disclosed in Japanese Patent Application Laid-Open No. 5-265650 or Japanese Patent Application Laid-Open No. 5-265029 may not always be convenient. Nevertheless, as a result of subdividing the originally limited display area (for example, see
(197444), there is a possibility that the cost may not be justified depending on the purpose. From the above considerations, it can be said that the adoption of the multi-display technology is inappropriate for solving the general demand for a wide screen in a portable device, particularly in a notebook size having a full keyboard. The present invention is not based on the purpose of increasing the display area in the first place, but rather, by arranging two (plural) portable information devices and using the displays of the two portable information devices to cooperate. Or one integrated operation.
In other words, the concept is closer to a multi-computer than a multi-display. Therefore, there is no possibility of reaching this invention with a natural idea from the multi-display technology.

[0026]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above circumstances, and combines a plurality of ultra-small information devices with a keyboard, and performs backup and data transfer between the ultra-small information devices. They also try to ensure consistency.

[0027]

According to a first aspect of the present invention, a plurality of mounting stations for mounting a portable information device having a keyboard and a display are provided. A selection unit for selecting one or more portable information devices from the portable information devices mounted on the mounting station, and a unit for inputting a key input from the keyboard to the portable information device selected by the selection unit. It is provided in the input subsystem for equipment.

According to a second aspect of the present invention, a plurality of mounting stations each for mounting a portable information device having a keyboard, a display, and one or more portable information devices mounted on the mounting station. Selecting means for selecting a portable information device; means for inputting a key input from the keyboard to the portable information device selected by the selecting means; and data between the portable information device mounted on the mounting station. A means for performing communication is provided in the input subsystem for information equipment.

In the first and second aspects, the means for controlling the displays of the plurality of portable information devices mounted on the mounting station in cooperation with each other to display a single output display is further provided. It may be provided in the device input subsystem.

Further, according to a third aspect of the present invention, there are provided data input means for inputting data, a plurality of mounting stations each for mounting a portable information device having a display, and a portable type mounted on the mounting station. A selecting device for selecting one or more portable information devices from the information devices and a device for inputting data from the data input device to the portable information device selected by the selecting device are provided in the information device input subsystem. Like that. In this case, the data input means corresponds to all input systems such as a mouse device, a scanner, a microphone, a modem, and a touch input system. The above aspects and aspects of the present invention
Other aspects of the invention are set forth in the following claims.
This will be described in detail using the following embodiment.

[0031]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment will be described with reference to FIGS.

FIG. 1 shows the entire appearance of the first embodiment, and FIG. 2 shows the internal structure of the first embodiment. In FIGS. It comprises a keyboard 22 and mounting stations 23 and 24. Mounting stations 23 and 2
Reference numeral 4 denotes a shape for accommodating the portable information devices 25 and 26, and a transparent protective plate such as plastic glass is formed on the front surface. The input subsystem 21 is particularly described in FIG.
As shown in FIG.
7 and a keyboard circuit section 22a is connected to the circuit sections of the portable information devices 25 and 26 via the switching device 27. The portable information device 25 has a CPU 28, a storage device 29, a video controller 30, a video memory 31, a display 32, a keyboard interface 33, and a communication interface 34, and exchanges data between these components via a bus 35. Is going. The other portable information device 26 is similarly configured. When the portable information devices 25 and 26 are attached to the input subsystem 21, the information devices 25 and 2
6 are connected to each other, realizing communication between the portable information devices 25 and 26, and performing data consistency maintenance procedures and backup processing. Specifically, two portable information devices 25, 26
Is installed in the input subsystem 21, software for checking data consistency and consistency is executed by one of the portable information devices 25 or 26. The activation of the software may be automatically performed according to the attachment of the portable information devices 25 and 26, or may be performed by an instruction from the keyboard 22.

The switching device 27 is for selectively supplying a key input from the keyboard 22 to one of the portable information devices 25 and 26. The switching device 27 may be a hardware or mechanical or electrical switch using a contact or the like, or may be a switch function implemented by software.

FIGS. 3 and 4 show a specific configuration of the switching device 27. In these drawings, push button switches 27A, 27B and 27C are provided on the operation surface of the input / output subsystem 21. Push button switch 2
The contacts of 7A, 27B and 27C are connected to the keyboard 22 and the portable information devices 25 and 26 as shown in FIG. 4, so that one or both of the portable information devices 25 and 26 can be connected to the keyboard 22. ing. When the push button switch 27A is operated, a key input is supplied to the portable information device 25. On the other hand, when the push button switch 27C is operated, the key input is supplied to another portable information device 26. In response to the key input, the generated display data may be displayed on one of the portable information devices 25 and 26, and the display data is transferred using the communication interface 34, and both the portable information devices 25 and 26 are displayed. 26 displays 3
The display may be performed with 2. When the push button switch 27C is operated, the same key input is supplied to both the portable information devices 25 and 26, and the two portable information devices 25 and 26 can be operated at the same time. In this case, the same database software or the like is operated on both portable information devices 25 and 26, different search conditions are given, speeds are compared,
You can run different database software under the same search conditions and compare speeds as well. There is also an advantage that software for comparing data can be easily executed.

5 and 6 show the mounting station 23,
FIG. 5 shows a state in which the portable information devices 25 and 26 are stored in the storage device 24. In FIG. 5, an insertion port is provided on the side of the mounting station so that the portable information devices 25 and 26 can be stored from the side. Has become. In FIG. 6, an insertion port is provided at the upper end of the mounting stations 23 and 24, and the portable information devices 25 and 26 are accommodated from top to bottom.

The keyboard 22 of the input subsystem 21
And the mounting stations 23 and 24 are composed of different members,
As shown in FIG. 7, both can be folded, and the mounting stations 23 and 24 and thus the portable information devices 25 and 2
The keyboard 6 may be arranged at an angle with respect to the keyboard 22, may be folded in two to save space, or may be easily carried.

As shown by the broken lines in FIG. 2, various input resources 36 such as a mouse device, a scanner, a modem, a microphone, and a touch input system are connected to the input subsystem 21 and are carried via a corresponding interface. Connected to the type information devices 25 and 26,
6 may be made available to the portable information devices 25 and 26.

FIG. 8 shows a second embodiment of the input subsystem of the present invention.
In this embodiment, portions corresponding to those in FIG. 2 are denoted by corresponding reference numerals, and detailed description thereof is omitted. In FIG. 8, the input subsystem 21 mainly includes a keyboard 22 (keyboard circuit unit 22a), and the keyboard circuit unit 22a is connected to only one portable information device 25 via a keyboard interface 33. . Basically, the key input from the keyboard 22 is supplied to only one portable information device 25, which communicates with the other portable information device 26 via a communication interface, and Processing such as exchange, comparison, and interlocking is performed. The portable information device 25 connected to the keyboard 22 is provided with an event redirection function (software) 37 as shown by a broken line in FIG. 8, and any of the portable information devices 25 and 26 ( An event such as a key input may be supplied to both. Also in this example, various input resources 36 such as a mouse device, a scanner, a modem, a microphone, and a touch input system are connected to the input subsystem 21 and connected to the portable information devices 25 and 26 via the corresponding interfaces. The input resources 36 can be made available to the portable information devices 25 and 26.

When the portable information device 26 is additionally stored, software for checking consistency and consistency between the two portable information devices 25 and 26 is executed to execute the two portable information devices 25. , 26 may realize data consistency. The activation of the software may be automatically performed according to the attachment of the additional portable information device 26, or may be performed by the user using the keyboard 22.

FIG. 9 shows a third embodiment of the present invention. In this figure, parts corresponding to those in FIG. 2 or FIG. In FIG. 9, the keyboard 22 (keyboard circuit unit 22a)
In addition to the switching device 27 and the CPU 38, the storage device 3
9, a video controller 40, a video memory 41, a display 42, and a bus 43, and have the functions of a normal computer. The input subsystem 21 operates alone as a computer. Input subsystem 21
May be configured as a display separate from the main body of the input subsystem 21, or as shown in FIG. 12, may be an integrated type such as a notebook personal computer. Also, as shown in FIG. 10 or FIG. 11, the mounted portable information devices 25 and 26 and the computer of the input subsystem 21 may share the display 42 of the input subsystem 21. FIG. 10 shows an example in which the display 42 has two screens, and FIG. 11 shows an example in which the display 42 has one screen.

In FIG. 9, the display mode can be set by using the switching device 27. As the display mode,
A mode in which a display for the main computer (computer function of the input subsystem 21) is displayed on the display 32 of one portable information device 25, and a display for the main computer is the display 3 of the other portable information device 26.
2, the two windows of the main computer are individually displayed on the displays 32 of the two portable information devices 25 and 26, and the keyboard 22 of the input subsystem 21 is connected to one of the portable information devices 25. A mode in which a display of the portable information device 25 is displayed on the display 32 for inputting, and an input subsystem 2
There is a mode in which one keyboard 22 is used for input to the other portable information device 26 and the display of the portable information device 26 is displayed on the display 32. In this case, the switching device 27 may be configured by hardware or software.

As shown in FIG. 12, when the input subsystem 21 has a unique display 42, the main display of the input subsystem 21 is exclusively used for display on the main computer. 25,
The display 32 of the portable display device 25, 2
6 can be used.

When the portable information devices 25 and 26 are stored, the main computer of the input subsystem 21 and the software for checking the consistency and consistency between the portable information devices 25 and 26 are executed to execute the main process. Data consistency and consistency between the computer and the portable information devices 25 and 26 may be realized. The activation of the software may be automatically performed according to the attachment of the portable information devices 25 and 26, or may be performed by the user using the keyboard 22.

FIG. 13 shows a fourth embodiment of the present invention. In this figure, an application 44 is mounted on portable information devices 25 and 26. The application 44 is, for example, a database application, and includes a database function unit 45 and a screen control function unit 4.
6 and a communication function unit 47. The screen control function unit 46 controls the display 3 of the portable information devices 25 and 26.
2 in cooperation with each other so that more data can be displayed at a time. The communication function unit 47 exchanges data and status between the portable information devices 25 and 26 and enables cooperative display.

FIG. 14 illustrates the operation of the embodiment of FIG. 13 by taking a database application as an example. In FIG.
When the portable information devices 25 and 26 are mounted on the portable information device 1, a consistency maintaining procedure is executed between the portable information devices 25 and 26 (steps S101 and S102). When the display mode is set to the cooperative mode by key input (the cooperative mode may be set using a switch), the screen control unit is initialized and the display indicator is set to A ( Steps S103 and S104). The value A of the display indicator corresponds to the portable information device 25, and the other value B corresponds to the portable information device 26. Next, the user enters the input subsystem 2
When a search command is input using the first keyboard 22, the portable information device 25 executes a search (step S105).
And S106). Screen control unit 4 of portable information device 25
In No. 6, since the display indicator is A, the display data of the search result is written in the video memory 31 of the portable information device 25, and the search result is displayed on the display 32 of the portable information device 25 (step). S
107). When the data of one page of the display 32 is written, the display indicator is switched from A to B (steps S108 and S109), and the screen control unit 46 of the portable information device 25 communicates with the other via the communication function unit 47. The status of whether or not the display 32 of the portable information device 26 can be displayed is read (step S11).
0). If the display is possible, the data of the search result is transferred to the portable information device 26 via the communication function unit 47, and the data is written in the video memory 31 of the portable information device 26, and the data of the portable information device 26 is written. It is displayed on the display 32 (step S111). When one page of data of the portable information device 26 is written to the video memory 31,
The display indicator is switched from B to A (steps S112 and S113). In addition, the user inputs a next page display instruction.
2, it is checked whether or not the display page remains (steps S114 and S115). If the display page remains, the process returns to step S107 to return to the portable information device 25.
The new data is displayed while updating the display contents of the display 32. On the other hand, if the display 32 of the portable information device 26 is not in a displayable state, step S
Proceeding to 113, the display indicator is returned to A, and the display is continued on the display 32 of the portable information device 25.

Although the display screen is automatically switched to the display 32 of the portable information devices 25 and 26 in the example of FIG. 14, the display screen may be switched according to the designation from the keyboard 22 of the user. Alternatively, the switching may be performed according to a predetermined reference according to a display space or a display target. Of course, an application other than the database application can also perform the cooperative display.

In the examples of FIGS. 13 and 14, the application 44 is provided with the screen control function unit 46 and the communication function unit 47. However, as shown in FIG. The function unit 47 may be realized.

[0048]

As described above, according to the present invention, a plurality of portable information devices are housed in an input subsystem having input means such as a keyboard, and the input means of the input subsystem and the portable information A user-friendly environment can be provided by effectively using the display of the device. The portable information device itself can be carried and used, and can achieve consistency and consistency while being attached to the input subsystem. It can be used in an office or at home depending on the situation.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall appearance of a first embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of the first embodiment.

FIG. 3 is a diagram illustrating a configuration example of a switching device according to the first embodiment.

FIG. 4 is a block diagram illustrating a configuration example of a switching device according to the first embodiment.

FIG. 5 is a diagram illustrating how to use the first embodiment.

FIG. 6 is a diagram for explaining how to use the first embodiment.

FIG. 7 is a diagram showing a modification of the first embodiment.

FIG. 8 is a block diagram showing a second embodiment of the present invention.

FIG. 9 is a block diagram showing a third embodiment of the present invention.

FIG. 10 is a diagram for explaining how to use the third embodiment.

FIG. 11 is a diagram illustrating how to use the third embodiment.

FIG. 12 is a diagram for explaining how to use the third embodiment.

FIG. 13 is a block diagram showing a fourth embodiment of the present invention.

FIG. 14 is a flowchart for explaining the operation of the fourth embodiment.

FIG. 15 is a block diagram illustrating a modified example of the fourth embodiment.

[Explanation of symbols]

 21 Input Subsystem 22 Keyboard 23, 24 Mounting Station 25, 26 Portable Information Equipment 27 Switching Device 32 Display 33 Keyboard Interface 34 Communication Interface

Continuation of front page (56) References JP-A-2-45835 (JP, A) JP-A-6-215040 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 3 / 02 G06F 1/16 G06F 15/02

Claims (5)

(57) [Claims] 1. A plurality of mounting stations for mounting independently operable portable information devices each having a keyboard, a display, and one or more portable information devices from the portable information devices mounted on the mounting stations. An input subsystem for an information device, comprising: a selection unit for selecting a device; and a unit for inputting a key input from the keyboard to the portable information device selected by the selection unit. 2. A plurality of mounting stations for mounting individually operable portable information devices having a keyboard, a display, and one or more portable information devices from the portable information devices mounted on the mounting stations. Selecting means for selecting a device; means for inputting a key input from the keyboard to the portable information device selected by the selecting means; and performing data communication between the portable information devices mounted on the mounting station. Means for an information device. 3. The apparatus according to claim 1, further comprising means for controlling each display of the plurality of portable information devices mounted on the mounting station in cooperation with each other to display a single output display.
Or the input subsystem for information equipment according to 2. 4. A data input means for inputting data, a plurality of mounting stations for mounting independently operable portable information devices each having a display, and a portable information device mounted on the mounting station. An information device input sub-unit comprising: a selection unit for selecting one or more portable information devices; and a unit for inputting data from the data input unit to the portable information device selected by the selection unit. system. 5. A display having a display and capable of operating independently
Portable information equipment without keyboard can be attached
Mounting bracket with keyboard And Key input from the keyboard to the portable information device
Input means for information equipment characterized by having an input means.
Power subsystem.