JP5312290B2 - Portable electronic devices - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable electronic device whose waterproofness is hard to be impeded. <P>SOLUTION: The device is provided with a housing 11 in which the interior has airtightness and a part of surface has a light transmission window through which light penetrates, a radiation unit 42x which is installed inside of the housing to radiate the light from the light transmission window, a light receiving unit 42y which is installed inside of the housing to receive the light from the light transmission window, a reflection unit 43 which is fixed to the housing so as to be able to take a state to cover the light transmission window and a state not to cover the light transmission window for the housing and is capable of taking a first state to reflect the light from the radiation unit to the light receiving unit side and a second state not to reflect, and a discrimination unit which discriminates whether the device performs a predetermined operation or not based on whether there is light reception or not in the light receiving unit. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a mobile electronic device such as a mobile phone provided with a security buzzer.

  Conventionally, a buzzer for crime prevention has been provided in a portable electronic device such as a mobile phone. When such a security buzzer senses a danger, the user pulls the cover member that forms a part of the housing, so that the mechanical switch of the security buzzer operates to sound. .

  However, when the above-described technology is to be mounted on a cellular phone having a waterproof function, for example, the switch mechanism exposed by pulling the cover member and the waterproof property of the space in which the electrical circuit around the switch mechanism is arranged. It was difficult to keep.

  Accordingly, an object of the present invention is to provide a portable electronic device whose waterproofness is not easily inhibited.

The present invention includes a housing transparent window is provided for transmitting light to a portion of the front surface, is mounted on the inside of the casing, a radiation unit for radiating light from the transmission window, the interior of the housing Mounted on the casing so as to be able to take a state of covering and not covering the transmission window with respect to the casing, and a light receiving section that receives light from the transmission window. It is determined whether or not to perform a predetermined operation depending on whether the light is reflected by the light receiving unit or not and whether the light is received by the light receiving unit. A control unit; and a receiver, wherein the control unit varies the predetermined operation for each mode in the security mode and the second mode, which are the first mode, and the first mode. The predetermined operation is the buzzer sound emission operation by the receiver. A.

  The control unit may determine whether or not to perform a predetermined operation from information that the radiation unit has emitted light and information that the light receiving unit has received light.

  In addition, at least a first mode and a second mode may be provided, and the control unit may change the content of a predetermined operation for each mode.

  Moreover, a receiver is further provided, the first mode is a security mode, and the predetermined operation in the first mode is a buzzer sound emission operation by the receiver.

  In addition, the control unit may perform control so as not to perform a buzzer sound emission operation by the receiver in a mode other than the first mode regardless of whether the light receiving unit receives light.

  In addition, a communication unit may be further provided, and the second mode may be a communication mode, and the predetermined operation in the second mode may be an optical communication operation.

  In addition, when the user selects the second mode, the control unit receives an optical signal related to communication from another terminal by the light receiving unit, or an optical signal related to communication to another terminal by the radiating unit. It is good to send.

  In addition, when the user selects the second mode, the control unit may notify the user to move the reflecting unit so that the transmission window is not covered.

  According to the present invention, for example, the buzzer can be controlled while maintaining the airtightness of the inside of the housing, so that a portable electronic device with improved waterproofness can be provided.

FIG. 1 is a perspective view illustrating a schematic configuration of an embodiment of a portable electronic device. 2 is a block diagram showing a schematic configuration of the portable electronic device shown in FIG. 3 is a cross-sectional view of the portable electronic device shown in FIG. FIG. 4 is a flowchart illustrating an example of the operation of the mobile electronic device. FIG. 5 is a flowchart showing another example of the operation of the portable electronic device.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following description. In addition, constituent elements in the following description include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. In the following, a mobile phone will be described as an example of the mobile electronic device. However, the scope of application of the present invention is not limited to a mobile phone. For example, the present invention is applied to a PHS (Personal Handyphone System), a game machine, and the like. The invention is applicable.

  First, the external configuration of the portable electronic device will be described. FIG. 1 is a perspective view illustrating a schematic configuration of an embodiment of a portable electronic device. The mobile electronic device 10 is a mobile phone having a wireless communication function. The mobile electronic device 10 is a straight mobile phone in which each part is housed inside a single box-shaped housing 11. In the present embodiment, the casing 11 has a single box shape. However, the casing 11 may be a foldable casing constituted by two members connected by a hinge, or a casing in which two members are slid. A housing in which three or more members are connected can also be used.

  The housing 11 is provided with a display 12 shown in FIG. 1 as a display unit. The display 12 displays a standby image as a predetermined image when the portable electronic device 10 is in a standby state for reception, or displays a menu image used to assist the operation of the portable electronic device 10. To do.

  The casing 11 is provided with a plurality of operation keys 13 for inputting characters at the time of creating a mail, for example, a telephone number of a call partner. The operation keys 13 constitute an operation unit of the mobile electronic device 10. In addition, the housing 11 is provided with a microphone 15 that receives sound when the mobile electronic device 10 is in a call, and a receiver 16 that emits sound when the mobile electronic device 10 is in a call or functions as a buzzer in an emergency.

  Further, on the upper surface of the housing 11, an emission unit 34 a of a projector 34 that projects an image and an imaging unit 38 a of a camera 38 are provided.

  In addition, inside the casing 11 having airtightness, a radiation part 42x and a light receiving part 42y of the infrared sensor 42 are provided. And the radiation | emission part 42x and the light-receiving part 42y of the infrared sensor 42 are covered with the light transmissive permeation | transmission window 44 inserted by the opening of the housing | casing 11, and the said light transmissive permeation | transmission window 44 also comprises airtight space. ing. And the cover member 14 provided with the reflection part 43 on the inner surface is attached so as to be relatively movable with respect to the housing 11 so as to cover the transmission window 44.

  FIG. 2 is a block diagram showing a schematic configuration of functions of the portable electronic device shown in FIG. As shown in FIG. 2, the portable electronic device 10 includes a control unit 22, a storage unit 24, a transmission / reception unit 26, an operation unit 28, an audio processing unit 30, a display unit 32, a projector 34, and a camera 38. And an infrared sensor 42.

  The control unit 22 is a processing unit that controls the overall operation of the portable electronic device 10 such as a CPU (Central Processing Unit). That is, the transmission / reception unit 26 and the audio are performed so that various processes of the mobile electronic device 10 are executed in an appropriate procedure according to the operation of the operation unit 28 and the software stored in the storage unit 24 of the mobile electronic device 10. The operation of the processing unit 30, the display unit 32, and the like is controlled. Various processes of the portable electronic device 10 include, for example, a voice call performed via a circuit switching network, creation and transmission / reception of an electronic mail, browsing of an Internet Web (World Wide Web) site, and the like. Examples of operations of the transmission / reception unit 26, the audio processing unit 30, and the display unit 32 include transmission / reception of signals by the transmission / reception unit 26, input / output of audio by the audio processing unit 30, display of images by the display unit 32, and the like. .

  The control unit 22 executes processing based on a program (for example, an operating system program, application program, etc.) stored in the storage unit 24. The control unit 22 is configured by, for example, a microprocessor unit (MPU: Micro Processor Unit), and executes various processes of the portable electronic device 10 described above according to a procedure instructed by the software. That is, the control unit 22 sequentially reads instruction codes from an operating system program, application program, or the like stored in the storage unit 24 and executes processing.

  The control unit 22 has a function of executing a plurality of application programs. Examples of application programs executed by the control unit 22 include a plurality of application programs such as an application program for controlling driving of the projector and a game application program for operating various games.

  The storage unit 24 stores software and data used for processing in the control unit 22, and includes a task for operating the application program for controlling the driving of the projector and a task for operating various game application programs. Is saved.

  In addition to these tasks, the storage unit 24 stores, for example, communication, downloaded voice data, software used by the control unit 22 to control the storage unit 24, the telephone number and mail address of the communication partner, and the like. In addition, an address book to be managed, a voice file such as a dial tone and a ring tone, and temporary data used in a software processing process are stored. Note that computer programs and temporary data used in the software process are temporarily stored in the work area assigned to the storage unit 24 by the control unit 22. The storage unit 24 includes, for example, a nonvolatile storage device (nonvolatile semiconductor memory such as ROM: Read Only Memory, a hard disk device, etc.), and a readable / writable storage device (for example, SRAM: Static Random Access Memory, DRAM: Dynamic Random Access Memory).

  The transmission / reception unit 26 has an antenna 26a, establishes a radio signal line by a CDMA method or the like with the base station via a channel assigned by the base station, and performs telephone communication and information communication with the base station. .

  The operation unit 28 includes, for example, an operation key 13 and a dedicated key 14 to which various functions such as a power key, a call key, a numeric key, a character key, a direction key, a determination key, and a call key are assigned. When a key is input by a user operation, a signal corresponding to the operation content is generated. The generated signal is input to the control unit 22 as a user instruction.

  The audio processing unit 30 executes processing of an audio signal input to the microphone 15 and an audio signal output from the receiver 16. That is, the sound processing unit 30 amplifies the sound input from the microphone 15, performs AD conversion (Analog Digital conversion), and then performs signal processing such as encoding to convert it into digital sound data and control it. To the unit 22. Also, the audio data sent from the control unit 22 is subjected to processing such as decoding, DA conversion (Digital Analog conversion), amplification, etc. to convert it into an analog audio signal, which is then output to the receiver 16.

  The display unit 32 includes a display panel (such as the display 12 described above) configured by a liquid crystal display (LCD, Liquid Crystal Monitor), an organic EL (Organic Electro-Luminescence) panel, and the like, and an image supplied from the control unit 22. A video corresponding to the data and an image corresponding to the image data are displayed on the display panel. In addition to the display 12, the display unit 32 may provide a sub display at a position exposed to the outside even when the housing is closed, for example.

  The projector 34 is an image projection mechanism that projects an image, and as described above, the projection unit 34 a is provided with an image to be projected onto the upper surface of the housing 11. The portable electronic device 10 projects an image from the emission unit 34a of the projector 34, that is, emits light that constitutes the image, so that a fixed wall surface, a screen, or the like on a surface facing the upper surface of the housing 11 is fixed. An image can be projected onto a region (projection region). The operation of the projector 34 is controlled by the control unit 22, and various images such as movies and presentation materials sent from the control unit 22 are projected and displayed on the projection area.

  The camera 38 is an imaging mechanism that acquires an image of an area including a projection area by an imaging unit 38 a provided on the upper surface of the housing 11.

The infrared sensor 42 receives and emits infrared light R. The radiation part 42x of the infrared sensor 42 emits infrared light R by, for example, an LED or an infrared laser. The light receiving unit 42y converts the infrared light R received using a photodiode or the like into a voltage, detects a light intensity based on the converted voltage value, a photo-resistor whose resistance changes depending on the light intensity, or light dependence A detector that detects the intensity of light using a resistive resistor (LDR) can be used.
The light that can be detected by the light receiving unit 42y is radiated light from the radiating unit 42x, optical signals for infrared communication from other terminals, and the like.

  The transmission window 44 that transmits light is disposed above the radiation part 42x and the light receiving part 42y of the infrared sensor 42. The transmission window 44 is disposed so as to close the opening of the housing 11, and a packing 45 is disposed between the opening of the housing 11 and the transmission window 44. Thereby, the airtightness and waterproofness of the internal space can be easily maintained regardless of opening and closing of the cover member 14 described later. The transparent window 44 is made of, for example, a transparent resin plate or glass.

The cover member 14 is attached above the transmission window and at one corner of the casing so that the relative position thereof can be changed. A strap 35 is attached to one end of the cover member 14, and when the user pulls the strap 35, the cover member 14 slides and the relative position of the cover member 14 with respect to the housing 11 changes. Further, a reflection portion 43 is formed on the inner surface of the cover member 14. The reflecting portion 43 is formed by depositing, for example, metal plating or white pigment on the inner surface of the cover member 14. In addition, you may arrange | position reflection members, such as a mirror, separately. The cover member 14 is formed into a desired shape by resin molding, for example, and is configured to be slidable in the direction of the arrow shown in FIG. 1 along a groove provided in the housing 11. By sliding the cover member 14, the relative position of the reflecting portion 43 also changes.
When the cover member 14 is not pulled by the user, the infrared light R radiated from the radiation portion 42x of the infrared sensor 42 is transmitted through the transmission window 44, reflected by the reflection portion 43 of the cover member 14, and again. The light is transmitted through the transmission window 44 and received by the light receiving unit 42y.
On the other hand, when the cover member 14 is pulled by the user, the infrared light R radiated from the radiation portion 42 x of the infrared sensor 42 passes through the transmission window 44 and is not reflected by the reflection portion 43 of the cover member 14. Radiated to the outside. At this time, the infrared light R from the radiation part 42x is not normally received by the light receiving part 42y. With such a structure, the infrared light R propagates from the internal space having waterproofness to the external space without impairing the waterproof property, and from the external space where the reflecting portion 43 is disposed. It can propagate to the internal space that maintains waterproofness without impeding waterproofness.

  A determination unit (not shown) in the control unit determines the open / closed state of the cover member 14 based on information on whether the radiation unit 42x is irradiated with light and whether the light reception unit 42y receives light. The control unit changes the operation after determining the open / close state depending on whether the mode of the mobile phone is set to an infrared communication mode described later or a security mode.

  Specifically, in the infrared communication mode, infrared communication is performed when the cover member 43 is open, and no buzzer sound is emitted. On the other hand, in the crime prevention mode, a buzzer sound is emitted when the cover member 43 is open. As described above, the infrared sensor can be used as a security sensor in addition to the communication purpose.

Next, an example of control of the infrared sensor 42 will be described with reference to FIGS.
For the infrared sensor 42, either the security mode or the communication mode is selected.

As shown in FIG. 4, in the crime prevention mode, first, irradiation with infrared light R from the radiation part 42x is periodically performed (S1).
And it is determined whether the light-receiving part 42y detected the infrared light R radiated | emitted from the radiation | emission part 42x (S2).
When the infrared light R is detected, the determination unit of the control unit 22 determines that the cover member 14 is in the open state (S3).
The control unit emits a buzzer sound from the receiver 16 (S4).
The release of the buzzer sound may be sustained regardless of the subsequent change in the open / close state of the cover member 14. While the buzzer is sounding, it is detected whether or not a predetermined password has been input from the operation key 13 of the operation unit (S5).
Only when the correct password is input, the buzzer sound emission is stopped (S6), the user is informed to close the cover member 14 (original state) (S7), and the control is performed in S1. It will return to.
If the password is not entered or if the wrong password is entered, the buzzer sound is not stopped and the control returns to S4.
In addition, when the password is set, the user may be prompted to input the password, but during the security mode operation, the password is not displayed to prompt the user. Accordingly, it is possible to make it difficult to force a confession of the personal identification number from a person who does not know that the buzzer sound stops unless the personal identification number is input.
On the other hand, when the infrared light R is not detected, the determination unit determines that the cover member 14 is in the closed state (S8). At this time, the control unit does not release the buzzer sound from the receiver 16 (S9), and the control returns to S1.

In the case of the communication mode by the infrared sensor 42, first, the infrared light R is irradiated from the radiation part 42x (S1).
And it is determined whether the light-receiving part 42y detected the infrared light R irradiated from the radiation | emission part 42x (S2).
When the infrared light R is detected, the determination unit determines that the cover member 14 is in the closed state (S3).
The control unit notifies the user to change the cover member from the closed state to the open state, and repeats the control to return to S1 until the open state is detected (S4).
On the other hand, when the infrared light R is not detected, the determination unit determines that the cover member 14 is in the open state (S5).
The control is varied depending on whether the user has selected the transmission mode or the reception mode.
In the case of the transmission mode, transmission of data or the like is executed (S6). When the transmission is completed, the communication mode is terminated and the security mode is entered.
In the reception mode, data reception is executed (S7). When the reception is completed, the communication mode is terminated (S8), and the security mode is entered.
Although not shown here, if transmission or reception is not completed because the other party of communication is not found, etc., transmission or reception is repeated a predetermined number of times (usually three times), and then the communication failure is notified to the user via the display 12 Then, the communication mode is terminated and the security mode is entered.

In the above description, the infrared sensor is used to detect the opening / closing of the cover member 14 in the crime prevention mode and the infrared communication mode. However, the present invention is not limited to this. For example, the opening / closing detection of the cover member 14 may be performed using an optical sensor. Specifically, opening / closing detection of the cover member 14 is performed in the shooting mode and the security mode. In the shooting mode, when the cover member is in the open state, the ambient brightness at the time of shooting is measured by the optical sensor, Sometimes, as described above, a buzzer sound emission switch may be used.
In the above-described crime prevention mode, a buzzer sound is emitted when the cover member 14 is in an open state. In addition, a specific signal, an emergency signal, or the like may be transmitted by infrared light R.
Further, in the above-described embodiment, the setting is made to emit a buzzer sound when the infrared light R is not detected, but the setting may be made to emit a buzzer sound when the infrared light R is detected.
In the above-described embodiment, the case where both transmission and reception are performed as the communication mode has been described. However, the communication mode may be a case where only transmission is performed like a remote control function.

DESCRIPTION OF SYMBOLS 10 Mobile phone 11 Housing | casing 12 Display 13 Operation key 14 Cover member 15 Microphone 16 Receiver 22 Control part 24 Memory | storage part 26 Transmission / reception part 26a Antenna 28 Operation part 30 Audio | voice processing part 32 Display part 34 Projector 35 Strap 38 Camera 38a Image pick-up part 42 Infrared rays Sensor 43 Reflector 44 Transmitting window 45 Packing R Infrared light

Claims (7)

A housing transparent window for transmitting light is provided on a part of the front surface,
A radiating portion mounted inside the housing and emitting light from the transmission window;
A light receiving portion mounted inside the housing and receiving light from the transmission window;
A state of being attached to the housing and reflecting light from the radiating portion toward the light receiving portion and a state of not reflecting the light so as to be able to take a state of covering and not covering the transmission window with respect to the housing. A reflective part that can take
A controller that determines whether or not to perform a predetermined operation according to the presence or absence of light reception in the light receiver of the light emitted from the radiation unit;
With a receiver,
In the security mode and the second mode, which are the first mode, the control unit varies the predetermined operation for each mode,
The portable electronic device in which the predetermined operation in the first mode is a buzzer sound emission operation by a receiver .   2. The portable electronic device according to claim 1, wherein the control unit determines whether or not to perform a predetermined operation from information that the radiation unit has emitted light and information that the light receiving unit has received light. machine. Wherein, the at the first non-mode-mode, the portable electronic device according to claim 1, wherein regardless of the presence or absence of light reception in the light receiving portion is controlled so as not performed buzzer sound emitting operation by the receiver. A communication unit;
The portable electronic device according to claim 1 , wherein the second mode is a communication mode, and the predetermined operation in the second mode is an optical communication operation. When the user selects the second mode, the control unit receives an optical signal for communication from another terminal by the light receiving unit, or transmits an optical signal for communication to another terminal by the radiation unit. The portable electronic device according to claim 1 . 6. The control unit according to claim 4 or 5 , wherein when the user selects the second mode, the control unit notifies the user to move the reflecting unit so that the transmission window is not covered. Portable electronic devices. The portable electronic device according to claim 1, wherein the inside of the housing has airtightness.