JPH11272167A - Portable terminal device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a portable terminal device in which display information is automatically enlarged / reduced in accordance with attachment / detachment to an attachment unit distant from the hand. SOLUTION: An in-vehicle adapter 1 of a portable terminal device main body 2 is provided.
The usage status signal is output from the usage status signal generation circuit 10 in response to the mounting or release from the usage status signal, is transmitted from the usage status signal transmission circuit 8, is received by the usage status signal receiving circuit 11, and is input to the CPU 13. Data determination unit 13
a, the display data is enlarged / reduced by the display data creation unit 13b and displayed on the display unit 5b by the display data generation unit 13b. When mounted on the display unit 1, the display unit 5b displays enlarged display information. When the apparatus main body is at hand, reduced display information is displayed on the display unit 5b. The magnification of the display information of the unit 5b automatically changes, and the reading of the display unit can always be performed under the optimal visual condition without any burden on the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for detachably mounting an apparatus main body on a mounting unit provided at a position distant from a user's hand, and displaying display information on a display section of the apparatus main body. The present invention relates to a mobile terminal device.

[0002]

2. Description of the Related Art In recent years, the development of portable terminal devices has been remarkable.
Various devices that have developed functions such as personal computers, electronic organizers, mobile phones, and pagers have been proposed. This type of portable terminal device is usually used at the user's hand, but also when used indoors, the device main body is mounted and mounted on a tabletop remote from the user's hand. In some cases, when used in a vehicle, the device body is mounted and mounted on an in-vehicle adapter provided in the vehicle. Further, in this type of portable terminal device, at the time of charging, the device main body is mounted on a desktop charging stand, and the device main body is charged.

When this kind of portable terminal device is used by being attached to a desktop charging stand or an in-vehicle adapter, or when being charged by being attached to a desktop charging stand, the distance between the user and the device body is increased. Becomes relatively large, making it difficult for the user to see the display information displayed on the display unit of the apparatus main body.

[0004]

In the conventional portable terminal device, when the portable terminal device is used by being attached to a desktop charging stand or an in-vehicle adapter, or when being charged by being attached to the desktop charging stand, the user is required to carry out the charging in advance. By performing a display enlargement operation on the operation unit of the apparatus main body, the display information is enlarged and displayed on the display unit. Even when the distance between the user and the apparatus main body becomes relatively large, the display of the apparatus main body is performed. In order to prevent the display information of the unit from becoming difficult to see, and to use the apparatus main body again at hand, a display reduction operation is performed on the operation unit to return the display of the display unit to the original state.

However, it is difficult for the user to perform an operation from the operation unit every time the portable terminal device is attached to the desktop charging stand or the vehicle-mounted adapter, or each time the portable terminal device is attached to the desktop charging stand and charged. It is complicated and burdensome, and when using it in a car, you may forget to operate it,
In this case, if the operation unit is operated while the vehicle is driving,
Problems also occur in safe driving.

[0006] The present invention has been made in view of the current state of operation of the portable terminal device as described above, and has as its object the purpose of mounting to a mounting unit disposed at a position distant from the hand. An object of the present invention is to provide a portable terminal device in which display information on a display unit is automatically enlarged / reduced in response to release.

[0007]

In order to achieve the above-mentioned object, the present invention provides an apparatus main body which is detachably mounted on a mounting unit disposed at a position distant from a user's hand. And a use state signal output unit that outputs a use state signal in response to attachment of the device body to the attachment unit or removal from the attachment unit. Determining means for determining the use state of the apparatus main body by detecting the use state signal; storage means for storing enlarged / reduced data corresponding to the use state determined by the determination means; Enlargement corresponding to the usage status determined by
Control means for reading reduced data from the storage means and performing enlargement / reduction processing on the display information.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing the overall configuration of the present embodiment, FIG. 2 is a block diagram showing the configuration of the usage signal generator of FIG. 1, and FIG. 3 is a block diagram showing the configuration of the usage signal transmitter of FIG. 4, FIG. 4 is a block diagram showing the configuration of the use status signal receiving circuit of FIG. 1, FIG. 5 is a flowchart showing the operation of the use status signal determination unit of FIG. 1, and FIG. 6 shows the operation of the display data creation unit of FIG. It is a flowchart.

[0009] Portable terminal device body 2 according to the present embodiment.
1 comprises a signal processing unit 3 and a display unit 5 as shown in FIG. 1, and the portable terminal device main body 2 is detachably mounted on a mounting unit disposed at a position away from the user. FIG. 1 shows a case where it is mounted on a vehicle-mounted adapter 1 and used in a vehicle. When the portable terminal device main body 2 is attached to this in-vehicle adapter 1 or when the attachment is released from the attached state, the use status signal generation circuit detects the attachment or the release of the attachment and outputs a corresponding use status signal. 10 are provided,
Further, a usage signal transmission circuit 8 for transmitting a usage signal from the usage signal generation circuit 10 to the portable terminal device main body 2 is provided so as to be connected to the usage signal generation circuit 10.

The signal processing section 3 of the portable terminal device main body 2 is provided with a use state signal receiving circuit 11 for receiving a use state signal from the use state signal generating section 7. , An I / O circuit 12 connected to a CPU 13 that controls the entire operation.
Includes a usage data determination unit 13a for determining usage data and a display data generation unit 1 for generating display data.
3b. The CPU 13 determines whether the portable terminal device main body 2 is used at hand of the user, is mounted on a mounting unit, and is used.
The mounted unit is connected to a usage data memory 15 which stores usage data corresponding to one of an in-vehicle adapter, a desktop table, and a desktop charger. Similarly, the CPU 13 has a determination RAM 1 in which data is written and read during a use state determination operation.
4 and a display I / O circuit 16 for performing an interface operation of display data.

Further, the display section 5 of the portable terminal device main body 2
Is provided with a display controller 5a for controlling display of display data from the display I / O circuit 16, and a display unit 5 for displaying display information is provided on the display controller 5a.
b is connected.

By the way, the usage signal generating circuit 10
The configuration shown in FIG. 2 is used to select and output usage data indicating the usage status of the device main body in response to the mounting of the portable terminal device main body 2 to the vehicle-mounted adapter 1 or the release of the mounting. A situation data selection circuit 10a is provided;
The usage status data selection circuit 10a includes a usage status signal conversion circuit 10 for converting usage status data into a usage status signal.
b, and an interface circuit 10c that performs an interface operation of the obtained usage signal is connected to the usage signal conversion circuit 10b.

The use status signal transmitting circuit 8 has the configuration shown in FIG. 3, and is provided with an interface circuit 8a for performing an operation of interfacing the use status signal. The interface circuit 8a modulates the use status signal. The use condition signal modulation circuit 8b is connected, and the use condition signal modulation circuit 8b is connected to the transmission circuit 8c for transmitting the modulated use condition signal.

The usage signal receiving circuit 11 has a configuration shown in FIG. 4 and is provided with a receiving circuit 11a for receiving a modulated usage signal.
a is connected to a usage signal demodulation circuit 11b that demodulates a usage signal, and the usage signal demodulation circuit 11b includes:
A usage data conversion circuit 11c for converting the usage signal into usage data is connected to the usage data conversion circuit 11c, and an interface circuit 11d for interfacing the usage data is connected to the usage data conversion circuit 11c.

The operation of the embodiment having such a configuration will be described. When the portable terminal device main body 2 is attached to the in-vehicle adapter 1 or the attachment is released from the attached state, the corresponding usage data is output from the usage data selection circuit 10a of the usage signal generator 7, and this usage data is output. The status data is converted into a usage signal by the usage signal conversion circuit 10b. The usage status signal thus obtained is input to the usage status signal modulation circuit 8b via the interface circuits 10c and 8a, where the usage status signal is modulated and the modulated usage status signal is modulated. The status signal is transmitted to the signal processing unit 3 via the transmission circuit 8c.

In the signal processing section 3, the receiving circuit 11a
Is used, the usage signal is demodulated by a usage signal demodulation circuit 11b, and the usage signal is converted into usage data by a usage data conversion circuit 11c. The usage data is input to the CPU 13 via the O-circuit 12, and the usage data determination unit 13a determines usage data extracted from the usage signal received from the usage signal generation unit 7.

The judging operation of the usage data judging section 13a will be described with reference to the flowchart of FIG. In step S1, the usage data input from the I / O circuit 12 is stored at the address x of the determination RAM 14, and the process proceeds to step S2, where the usage data memory 15 is used.
, The usage status registration number is read as a variable y, the process proceeds to step S3, and the head address of the usage status registration table is read from the usage data memory 15 as a variable z.

Next, the process proceeds to step S4, where it is determined whether or not the variable y is 0. In step S4, the variable y is set to 0.
If not, the process proceeds to step S5, where the variable x
= It is determined whether or not the contents of the address indicated by the variable z match, and if the contents do not match in the determination of step S5, the process proceeds to step S6, the variable y is decremented, and the process proceeds to step S7, where the variable z Is updated to the next address, and the process returns to step S4 to repeat the same processing.

On the other hand, if it is determined in step S5 that the contents of the address indicated by the variable x = variable z match, the process proceeds to step S5.
In step S8, it is determined whether or not the usage status data read from the usage status data memory 15 is different from the current display status. It is determined whether display is to be performed. If it is determined in step S9 that enlarged display is to be performed, the process proceeds to step S10, where the display data creation unit 13b
In step S9, if it is determined that enlarged display is not to be performed, the process proceeds to step S11, where a reduced display instruction is issued to the display data creation unit 13b, and the process ends. In step S4, the variable y is set to 0.
If it is determined that the current display state is not different from the current display state in step S8, the processing is terminated.

Here, the display data creation operation in the display data creation section 13b will be described with reference to the flowchart of FIG. In step S21, it is determined whether or not there is an enlargement / reduction display instruction. If it is determined that there is no enlargement / reduction instruction, the process ends. If it is determined that there is an enlargement / reduction instruction, the process proceeds to step S22. Then, it is determined whether or not an enlargement instruction has been issued. If it is determined in step S22 that the enlargement instruction has been issued, step S23 is performed.
The display data creation unit 13b creates data obtained by enlarging the current display information, and proceeds to step S22.
If it is determined that the enlargement instruction has not been issued, the process proceeds to step S24, data in which the current display information is reduced is created, and the process ends.

Then, the display data creation unit 13
b is input to the display controller 5a of the display unit 5 via the display I / O circuit 16, and the display controller 5a generates display information based on the display data created in the display unit 5b. Is displayed.

Thus, according to the present embodiment,
The portable terminal device main body 2 is attached to the vehicle-mounted adapter 1,
Alternatively, when the mounting is released from the mounting state, a usage signal corresponding to the usage state is output from the usage signal generation circuit 10 of the usage signal generation unit 7, and the usage signal is transmitted to the usage signal transmission circuit 8. Is transmitted to the signal processing unit 3 and received by the usage signal receiving circuit 11. Then, the data is input to the CPU 13 via the I / O circuit 12, and is used by the use state data determination unit 13a to determine the RAM 14 for determination.
Is compared with the usage data stored in the usage data memory 15, and based on the display status of the corresponding usage data, the display data creation unit 13b enlarges or reduces the display data. Display information based on the created data is displayed on the display unit 5b by the display controller 5a. For this reason, according to the present embodiment, when the user detaches the portable terminal device main body 2 from his / her hand and attaches it to the vehicle-mounted adapter 1, the display unit 5b automatically displays the enlarged display information. ,
When the portable terminal device main body 2 is detached from the in-vehicle adapter 1 and placed at hand, reduced display information is automatically displayed on the display unit 5b. The magnification of the display information of the display unit 5b automatically changes in accordance with the distance, and the user can always read the display unit under the optimal visual condition without any operational burden.

In the above description, the case where the portable terminal device main body 2 is used by mounting it on the vehicle-mounted adapter 1 or releasing the mounting from the mounted state is described, but the present invention is limited to this description. Not the portable terminal device body 2
If you do not use the car, you can use it in your house indoors, or attach it to a desktop table and use it if necessary, attach it to a desktop charger. Also, the magnification of the display information on the display unit 5b automatically changes according to the distance between the user and the main body of the portable terminal device.

[0024]

According to the present invention, the apparatus main body is used in a detachable state with respect to the mounting unit disposed at a position distant from the user's hand.
A use state signal is output in response to attachment or detachment of the apparatus body to or from the attachment unit, and the use state of the apparatus body is determined by the determination means based on the detection of the use state signal. Thus, the scaled data corresponding to the use state determined by the determination unit is
The enlargement / reduction processing is automatically performed on the display information read out from the storage unit in which the enlargement / reduction data corresponding to the use state is stored and displayed on the display unit. For this reason, according to the present invention, when the apparatus main body is mounted on the mounting unit and used away from the user's hand, the display information is enlarged and displayed on the display section of the apparatus main body, and the apparatus main body is placed at hand. When used, the display information is displayed in a reduced size on the display unit, and the magnification of the display information on the display unit automatically changes according to the distance between the user and the apparatus main body. Without this, it is possible to always read the display section under optimal visual conditions.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a use status signal generating circuit of FIG. 1;

FIG. 3 is a block diagram illustrating a configuration of a use status signal transmission circuit of FIG. 1;

FIG. 4 is a block diagram illustrating a configuration of a usage signal receiving circuit of FIG. 1;

FIG. 5 is a flowchart showing an operation of a use status signal determination unit in FIG. 1;

FIG. 6 is a flowchart showing the operation of the display data creation unit in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... In-vehicle adapter, 2 ... Portable terminal device main body, 3 ... Signal processing part, 5 ... Display part, 7 ... Usage status signal generation part, 8 ... Usage status signal transmission circuit, 10 ... Usage status signal generation circuit, 1
1 ... Usage signal receiving circuit, 13 ... CPU, 14 ... RAM for determination, 15 ... Usage data memory.

Claims (1)

[Claims] 1. A portable terminal device in which an apparatus main body is detachably used in a mounting unit disposed at a position distant from a user's hand, and display information is displayed on a display unit of the apparatus main body. A use state signal output unit that outputs a use state signal in response to mounting of the apparatus main body on the mounting unit or removal from the mounting unit; and using the apparatus main body by detecting the use state signal. Determination means for determining a state; storage means for storing enlarged / reduced data corresponding to the use state determined by the determination means; and storage of the enlarged / reduced data corresponding to the use state determined by the determination means. Control means for reading from the means and performing enlargement / reduction processing on the display information.