JP2008211287A - Portable apparatus and control method of same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a portable apparatus from falling a mount surface while making good use of a notification function using vibrations. <P>SOLUTION: The portable apparatus includes a vibration generating means (step S53) for generating vibrations to be transmitted to a housing, an angular velocity detecting means (steps S51 and S54) for detecting an angular velocity operating on the housing, and a vibration suppressing means (steps S56 to S58) for decreasing the intensity of the vibrations generated by the vibration generating means when the angular velocity detected by the angular velocity detecting means has an amplitude exceeding a predetermined set value when the vibration generating means generates the vibrations. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a portable device provided with vibration generating means for transmitting vibration to a casing at a predetermined cycle.

In this type of portable device, for example, in a mobile phone, a vibration is generated in the vibration generating unit to notify an incoming call in the manner mode or to notify the time set as an alarm timer, and this is transmitted to the housing. To inform the user.
By generating vibration at this vibration generator and transmitting it to the housing, there is an advantage that the user can be notified of the arrival of an incoming call or the arrival of a set time without being known by others. When vibration is generated in the vibration generator while placed on a flat surface with relatively high hardness such as a desk or table, the portable device moves due to the vibration of the housing, and the A situation occurs where the portable device falls from the edge and is damaged.

Therefore, in order to prevent the portable device from falling, for example, a bottom surface contact detection switch and a horizontal detection switch are provided in the first case portion of the portable phone, and the portable phone is placed on a substantially horizontal surface such as a desk by these switches. A mobile phone is known in which even if it is in a mode in which an incoming call is detected and a vibrator is activated, the operation of the vibrator is stopped so that a loud sound is not generated or dropped (Patent Document) 1).
JP 2004-274438 A

However, in the conventional example described in the above-mentioned Patent Document 1, it is detected that the bottom surface of the mobile phone is in contact with the bottom surface contact detection switch and that the mobile phone is placed horizontally with the horizontal sensor. Then, since it is determined that the mobile phone is placed on a substantially horizontal surface such as a desk and the operation of the vibrator is stopped, the surface of the mobile phone is different from the surface provided with the bottom contact detection switch. When placed on a horizontal surface, the vibrator operation cannot be stopped, and the mode is set to notify the incoming call with the corner vibrator, so the vibrator operation is stopped, so the incoming call notification function is also stopped. There is an unsolved problem that there is no way to notify the user of an incoming call.

Therefore, the present invention has been made paying attention to the unsolved problems of the above-described conventional example, and a portable device that can prevent the portable device from falling from the mounting surface while making use of a vibration notification function. It is intended to provide.

In order to achieve the above object, a portable device according to the first technical means of the present invention includes a vibration generating means for generating a vibration to be transmitted to a casing, and an angular velocity detecting means for detecting an angular velocity acting on the casing. And vibration suppression that reduces the strength of vibration generated by the vibration generating means when the angular velocity detected by the angular velocity detecting means has an amplitude greater than or equal to a predetermined set value when the vibration generating means generates vibration. And a means.

In the first technical means, when the vibration generated by the vibration generating means is transmitted to the housing, the angular velocity detected by the angular velocity detecting means is greater than a set value with which the housing may move. In addition, since the strength of the vibration generated by the vibration generating means is reduced, it is possible to prevent the portable device from falling while taking advantage of a notification function such as an incoming call.
The portable device according to the second technical means of the present invention is characterized in that, in the first technical means, the angular velocity detecting means is a gyro sensor.

In the second technical means, a gyro sensor that is mounted for detecting an azimuth in an autonomous positioning calculation process for calculating the current position and for preventing camera shake in a portable device equipped with an electronic camera such as a camera-equipped mobile phone is provided. The vibration suppressing function can be exhibited without increasing the number of parts.
Further, in the portable device according to the third technical means of the present invention, in the first or second technical means, the vibration suppressing means has the angular velocity when no vibration is generated by the vibration generating means. Vibration generated by the vibration generating means when the amplitude is less than the predetermined set value and the angular velocity when the vibration generating means generates vibration is greater than or equal to the predetermined set value. It is characterized by weakening.

In this third technical means, when the amplitude of the angular velocity during non-vibration is less than the set value, the portable device may be placed on a fixed object such as a desk or table away from the user's hand. When the angular velocity at the time of vibration generation is higher than the set value by the vibration generating means, it can be determined that the portable device is on a relatively hard plane that is easy to move by vibration of the desk, table, etc. It is possible to more accurately detect that a portable device such as a table is on a plane that is easy to move. For this reason, the strength of vibration generated by the vibration generating means can be reduced only when the portable device is likely to fall.

Furthermore, the portable device control method according to the fourth technical means of the present invention includes a vibration generating means for generating a vibration transmitted to the housing, an angular velocity detecting means for detecting an angular velocity acting on the housing, A control method for a portable device comprising: when the vibration generating means generates vibration, and the angular velocity detected by the angular velocity detecting means has an amplitude greater than or equal to a predetermined set value, the vibration generating means It is characterized by comprising a vibration suppressing step for reducing the strength of vibration to be generated.

  In the fourth technical means, the same effect as the first technical means described above can be obtained.

Hereinafter, an embodiment when the present invention is applied to a portable telephone will be described with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of the present invention. In the figure, CT is a portable telephone as a portable device, and a rectangular plate-like base member 1 and a cover that covers the upper surface of the base member 1. Member 2
Have a housing 4 connected through a hinge 3.
As shown in FIG. 1A, the base member 1 has a key input portion 5 having operation buttons on its upper surface, and a microphone 6 on the opposite side of the hinge 3. (
As shown in b), a radio communication antenna 7 that protrudes to the outside and communicates with the radio communication base station is attached to the end face on the hinge 3 side.

As shown in FIG. 1A, the lid member 2 is provided with an image display unit 9 on the surface facing the base member 1, and a speaker 10 is provided on the opposite side of the image display unit 9 from the hinge 3. It has been. Here, as the image display unit 9, for example, a liquid crystal panel, an organic EL panel, a plasma display panel, or the like can be applied.
Further, as shown in FIG. 1B, the imaging device 11 is attached to the back surface of the lid member 2, and the yaw and pitch of the imaging device 11 are placed inside the lid member 2 in the vicinity of the imaging device 11. Gyro sensors 12a and 12b are provided as direction angular velocity detection units.

The portable telephone set CT having the above configuration is configured as shown in FIG. That is, the mobile phone CT includes the CPU 22 and the clock unit 23 that calculates the current time.
And the like.
Detection signals from the gyro sensors 11 a and 11 b that detect the two-dimensional angular velocity described above are input to the arithmetic processing unit 24 via the A / D converter 30.

The arithmetic processing unit 24 includes a ROM 31 that stores various processing programs executed by the CPU 22 of the arithmetic processing unit 24 such as a mobile phone control processing program that exhibits a mobile phone function, and is necessary in the arithmetic process of the arithmetic processing unit 24. A RAM 32 for storing data to be stored and an address book memory 36 as a secret information storage unit including a flash memory or the like for storing an address book are connected.

Furthermore, the arithmetic processing unit 24 performs R communication with a nearby base station by a mobile phone function.
An F transmission / reception unit 33 is connected, and a display unit 34 including a liquid crystal display for displaying predetermined menu information, e-mail information, and the like is connected.
Furthermore, a key input unit 5, a microphone 6, a speaker 10, and a vibration motor 35 as vibration generating means are connected to the arithmetic processing unit 24.

In the arithmetic processing unit 24, the CPU 22 performs a mobile phone control process for performing voice transmission / reception processing and e-mail transmission / reception processing similar to those of a normal mobile phone, and a vibration process for generating a vibration for notifying an incoming call of the mobile phone CT. At least.
The mobile phone control process executed by the CPU 22 is executed as a main program, for example.
As shown in FIG. 3, first, in step S1, it is determined whether or not there is an incoming call. If there is an incoming call, the process proceeds to step S2 to determine whether or not the vibration mode as the manner mode is set. If the vibration mode is not set, the process jumps directly to step S4. If the vibration mode is set, the process proceeds to step S3, and a vibration process shown in FIG.
Migrate to

In step S4, it is determined whether the incoming call is a telephone function or an e-mail function. If the incoming call is a telephone function, the process proceeds to step S5 to execute a voice call process including a normal incoming call process, and an on-hook state ( When the telephone line is disconnected, the process returns to step S1, and when it is an e-mail, the process proceeds to step S6 to execute an e-mail receiving process, and then returns to step S1.

If the determination result in step S1 is that there is no incoming call, the process proceeds to step S7 to determine whether or not it is in a transmission state. If it is not in a transmission state, the process returns to step S1.
When it is in the transmission state, the process proceeds to step S8, where it is determined whether the transmission is a telephone function or an e-mail function. When the transmission is a telephone function, the process proceeds to step S9, and a normal transmission destination is set. When a voice call process including a telephone transmission process for transmitting a telephone number is executed and an on-hook state is entered, the process returns to step S1. When the transmission is an e-mail function, step S1 is performed.
The process proceeds to 0, and after executing the e-mail transmission process for transmitting the created e-mail to the corresponding address, the process returns to step S1.

Further, in the vibration process executed in step S3 of the mobile phone control process, as shown in FIG. 4, first, in step S51, reading of the angular velocities of the gyro sensors 12a and 12b is started. This angular velocity is read by turning on the power of the A / D converter 30 and starting reading the sensor output at regular intervals, and converting the angular velocity consisting of analog signals detected by the gyro sensors 12a and 12b into digital data. Are taken into the CPU 22 and stored in the RAM 32. For example, measurement is performed 100 times per second, and angular velocity data is sequentially written in the RAM 32.

Next, the process proceeds to step S52, and the normal drive mode in which the vibration motor 35 generates normal vibration is selected. Then, the process proceeds to step S53, and the selected drive mode in which the vibration motor 35 is rotationally driven every predetermined time. In response, a rotation drive command for rotating the vibration motor 35 for a predetermined time is output to the vibration motor 35, and then the process proceeds to step S54.
In this step S54, it is determined whether or not the rotational drive of the vibration motor 35 has been completed. If the rotational drive of the vibration motor 35 has not been completed, the process waits until the rotational drive is completed, and the rotational drive of the vibration motor 35 is completed. If so, the process proceeds to step S55.

In this step S55, the angular velocity data stored in the RAM 32 is evaluated. The angular velocity data is evaluated by separating the angular velocity data stored in the RAM 32 into a vibration motor operating section and a vibration motor non-operating section based on the operation timing information of the vibration motor 35, and obtaining the amplitude of the angular speed data in each section. The maximum level and the minimum level of the angular velocity data are obtained by the peak search of the amplitude of the angular velocity data and the average of the peaks, and the difference between them is used as the output amplitude.

Next, the process proceeds to step S56, where the output amplitude during operation of the vibration motor 35 is the set amplitude (
This is based on whether or not the data is measured by placing the mobile phone CT on a hard surface as a reference when manufacturing the device, and the mobile phone CT is placed on a hard surface that is easily moved by vibration. If the output amplitude during vibration is less than the set amplitude, it is determined that it is not placed on a hard surface that is easily moved by vibration, and will be described later.
Jump to 59 and continue the state where the output amplitude at the time of vibration is equal to or greater than the set amplitude, it is determined that the mobile phone CT is placed on a hard surface that is easily moved by vibration, and the process proceeds to step S58. To do.

In this step S58, it is determined whether the portable telephone set CT is mounted on a fixed object such as a table or not, depending on whether or not the amplitude of the angular velocity at the time of non-vibration is below a reference value. When the amplitude of the angular velocity during vibration exceeds the reference value, it is determined that the user possesses it and there is no risk of falling, and the process jumps to step S59 described later, and the amplitude of angular velocity during non-vibration is the reference value. When it is below, it is determined that the object is placed on a fixed object such as a desk or table, and the process proceeds to step S58.

In step S58, a suppression drive mode is selected in which the vibration motor 35 generates vibrations that are weaker than normal vibrations and do not move the casing 4 due to vibrations. Then, the process proceeds to step S59, and whether or not the incoming call continues. If the incoming call continues, the step S5
3 and when the incoming call ends, the process proceeds to step S59 and the gyro sensor 12a,
The measurement process of the angular velocity detected in 12b is finished, and the vibration process is finished.

In the process of FIG. 4, the processes of steps S51 and S54 and the gyro sensors 12a, 1
2b corresponds to the angular velocity detection means, and the processing from step S56 to step S58 corresponds to the vibration suppression means.
Next, the operation of the above embodiment will be described.
When a user makes a call with the portable telephone CT, the user inputs a destination telephone number with the key input unit 5 or selects a desired address from the address book stored in the address book memory 36 to obtain a predetermined address. By pressing the function key, the cellular phone control process shown in FIG. 3 is executed.

For this reason, since it is in the transmission state, the process proceeds from step S1 to step S7 to step S8, and since it is a telephone function, the process proceeds to step S9 and the voice call process is executed. When the call process and the call process are performed and the call is ended and the on-hook state is established, the voice call process is ended and the process returns to step S1.
Similarly, when transmitting an e-mail, the process proceeds from step S1 through steps S7 and s8 to step S10, the created e-mail is transmitted, and when the transmission process ends, the process returns to step S1.

Similarly, when there is an incoming call from an external telephone, the process proceeds from step S1 to step S2 in the process of FIG. 3, and when the vibration mode is not set, the process proceeds from step S4 to step S5. After the call process is performed, the call process is performed. When the call ends and the on-hook state is established, the voice call process is terminated and the process returns to step S1.
Even when an e-mail is received, if the vibration mode is not set, the process goes directly to step S6 through step S4 to perform the e-mail incoming process, and when this e-mail incoming process ends, the process returns to step S1.

However, when the vibration mode is set and an incoming call or e-mail is received from the outside, the process proceeds from step S1 to step S2 to step S3 to execute the vibration process shown in FIG. .
In this vibration process, first, the gyro sensors 12a and 12b are set in an operating state and the A / D converter 30 is set in an operating state to start reading the angular velocity.
52, the normal drive mode for generating vibration with a relatively large amplitude is selected for the vibration motor 35, and then the process proceeds to step S53, where the vibration motor 35 is in an operating state for a predetermined time. As described above, when the vibration motor 35 is activated, vibration is generated for a predetermined time, and this vibration is transmitted to the housing 4.

At this time, when the mobile phone CT is placed on, for example, a soft cloth, the housing 4 does not move when vibration is generated by the vibration motor 35, and the gyro sensors 12a and 12b at this time are not moved. As shown in FIG. 5, the angular velocity detected by the
s] is not exceeded.
On the other hand, when the mobile phone CT is placed on a hard horizontal surface such as a desk or table, the housing 4 moves when vibration is generated by the vibration motor 35. The gyro sensor 12a, As shown in FIG. 6, the angular velocity detected at 12b has an upper and lower amplitude of 150 [rad].
/ S] or more and reaches about 200 [rad / s].

On the other hand, when the user has the mobile phone CT in his hand, the angular velocity detected by the gyro sensors 12a and 12b at this time is as shown in FIG.
Although the amplitude is instantaneously large, the amplitude due to vibration generated by the vibration motor 35 at the time of incoming is 1
The amplitude is less than 50 [rad / s], and the amplitude is relatively large but small compared to the vibration by the vibration motor 35 in the state of waving just by holding it in the hand and in the absence of vibration at the time of incoming call.

Therefore, the threshold value determined in step S56 of FIG. 4 described above is set to, for example, 150 [rad / s] in order to detect vibration on a hard horizontal surface such as a desk or table, and the threshold value determined in step S57 is grasped by hand. Set the angular velocity to a value that can be detected.
For this reason, for example, when the mobile phone CT is gripped by hand or placed on a soft cloth, even when vibration is generated in the normal drive mode in which the vibration motor 35 generates relatively large vibrations. Since the amplitude is less than the threshold value 150, it is determined in step S55 in the vibration processing of FIG. 4 that the mobile phone CT does not move due to vibration, and the process proceeds to step S59 to determine whether the incoming call is continued. If the incoming call is continued, the process returns to step S58 to repeat driving the vibration motor 35 in the normal drive mode.

However, when the mobile phone CT is placed on a hard horizontal surface such as a desk or table, as described above, the vibration motor 35 is driven in the normal drive mode to generate vibration, and this is applied to the housing 4.
If it transmits to, housing | casing 4 will start a movement.
In this state, in the vibration process of FIG. 4, the normal drive mode is first set in step S52, so that the vibration motor 35 is driven to generate a large vibration in step S53. However, in step S54, the angular velocity is set. When the data is evaluated, the mobile phone CT itself is placed on a stationary object such as a desk or table when the vibration motor is not vibrating, so that there is almost no vibration and the gyro sensor 12a, The angular velocity detected at 12b also remains substantially zero. From this state, when the vibration motor 35 is driven in the normal drive mode in step S53, a large vibration is generated and placed on a hard horizontal surface such as a desk or table. The angular velocity detected by the gyro sensors 12a and 12b is equal to or higher than the threshold value 150 [rad / s].

For this reason, in the vibration process of FIG. 4, the process proceeds from step S56 to step S57, and the amplitude at the time of non-vibration is substantially zero. Therefore, the process proceeds to step S58 and the vibration motor 35 generates a vibration that is weaker than the normal vibration. When the suppression drive mode is selected and the incoming call is continued, the process returns to step S53.
In this step S53, since the vibration motor 35 is driven in the suppression drive mode, the vibration generated by the vibration motor is suppressed to a small level. Even if this is transmitted to the case 4, the case 4 is caused by vibration. It is restrained to move. This vibration suppression state is continued as long as the incoming call is continued.

Thereafter, when the incoming call ends, the process proceeds to step S60, where the gyro sensors 12a, 12
The angular velocity reading process from b is finished, and the vibration process is finished.
In the state where the mobile phone CT is held and shaken greatly at the time of an incoming call, the amplitude of the angular velocity detected by the gyro sensors 12a and 12b is 150 [rad] as shown in FIG.
/ S], but since the amplitude during non-vibration when the vibration motor 35 is not driven is large, the process does not proceed from step S57 to step S58, and the suppression vibration mode is surely set. Can be prevented.

Thus, according to the embodiment, when the vibration mode is selected when the mobile phone CT enters the incoming state, the normal drive mode is first set and a large vibration is generated by the vibration motor 35. Since this is transmitted to the housing 4, when the cellular phone CT is held by hand or accommodated in a bag or the like, the gyro sensor 12
Since the angular velocities detected at a and 12b are smaller than the threshold value 150 [rad / s], the normal drive mode of the vibration motor 35 is continued, and the user can be reliably notified of the incoming state.

However, when the mobile phone CT is placed on a hard horizontal surface such as a desk or table, when the vibration motor 35 is first driven in the normal drive mode, the gyro sensor 12a.
, 12b, an angular velocity with a large amplitude that is greater than or equal to the threshold value 150 [rad / s] is detected, and the amplitude of the angular velocity during non-vibration becomes substantially zero, so that the housing 4 is like a hard desk or table.
It is determined that the mobile phone CT is placed on a fixed object that is likely to move due to the vibration of the mobile phone, and the suppression drive mode that generates vibrations that are weaker than the normal drive mode and do not move the housing 4 is present. Selected. As a result, the movement of the housing 4 is surely stopped and the mobile phone CT can be reliably prevented from being dropped and damaged from the desk or table, and the incoming call notification function by vibration can be continued. .

In addition, when the angular velocity during vibration is equal to or greater than the threshold value and the angular velocity during non-vibration is equal to or less than the reference value, it is detected with high accuracy that the mobile phone CT is in an environment that is easy to move due to vibration of a desk or table. be able to.
Note that the gyro sensors 12a and 12b may be gyro sensors that are used for direction detection in the autonomous positioning calculation processing for calculating the current position or for correcting camera shake of image data captured by the imaging device 11. With such a configuration, it is not necessary to provide a separate gyro sensor, and an increase in the number of parts and an increase in manufacturing cost can be prevented.

In the above embodiment, the angular velocity detected by the gyro sensors 12a and 12b is
When the suppression drive mode is selected when the vibration region where the vibration motor 35 is driven is equal to or higher than the threshold value 150 [rad / s] and is equal to or less than the predetermined threshold value in the non-vibration region where the vibration motor 35 is stopped. Although described above, the present invention is not limited to this, and the above-described step S57 in FIG. Thus, it may be determined that the mobile phone CT is in an environment that is easily moved by vibration.

In the above-described embodiment, the case where the present invention is applied to the mobile phone CT has been described. However, the present invention is not limited to this, and other mobile devices such as PDA (Personal Digital Assistants) can receive an incoming call or wake up. Instead, the present invention can be applied to a case where vibration generating means for generating vibration is provided instead.

It is a perspective view which shows one Embodiment of this invention. It is a block diagram which shows the electric constitution of this invention. It is a flowchart which shows an example of the mobile telephone control processing procedure performed with CPU. It is a flowchart which shows an example of the vibration processing procedure performed with CPU. It is a wave form diagram which shows the angular velocity detection value at the time of the vibration generation | occurrence | production by a vibration motor when mounting a mobile telephone on a soft cloth. It is a wave form diagram which shows the angular velocity detection value at the time of the vibration generation | occurrence | production with a vibration motor when a portable telephone is mounted on a hard table. It is a wave form diagram which shows the angular velocity detection value in the state which hold | gripped the mobile telephone with the hand.

Explanation of symbols

CT: mobile phone, 4: housing, 5: key input unit, 6: microphone, 10: speaker, 11
... Imaging device, 12a, 12b ... Gyro sensor, 22 ... CPU, 23 ... Clock part, 24 ... Arithmetic processing part, 31 ... ROM, 32 ... RAM, 34 ... Display part, 35 ... Vibration motor

Claims (4)

Vibration generating means for generating vibration transmitted to the housing;
Angular velocity detection means for detecting angular velocity acting on the housing;
Vibration suppressing means for reducing the strength of vibration generated by the vibration generating means when the angular velocity detected by the angular velocity detecting means has an amplitude greater than or equal to a predetermined set value when the vibration generating means generates vibration; A portable device characterized by comprising: The portable device according to claim 1, wherein the angular velocity detection means is a gyro sensor. The vibration suppression means is configured such that the angular velocity when the vibration generating means generates no vibration is less than the predetermined set value and the vibration generating means generates vibration. The portable device according to claim 1 or 2, wherein the vibration generated by the vibration generating means is weakened when the amplitude is equal to or greater than the predetermined set value. A portable device control method comprising: vibration generating means for generating vibration transmitted to a housing; and angular velocity detecting means for detecting an angular velocity acting on the housing,
A vibration suppressing step of weakening the strength of vibration generated by the vibration generating means when the angular velocity detected by the angular velocity detecting means has an amplitude greater than or equal to a predetermined set value when the vibration generating means generates vibration; A method for controlling a portable device, comprising:

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