JP2019193127A - Mobile terminal - Google Patents

Abstract

To provide a mobile terminal which does not require the separate provision of a side trigger substrate and an antenna pattern.SOLUTION: Antenna patterns 35AP, 28AP are provided on side trigger substrates 52, 54, thus eliminating the need to separately prepare the side trigger substrates and the antenna patterns. Since a right side face 14R and a left side face 14L of a housing 11 are not covered with a palm, the antenna pattern 35AP provided on the side trigger substrate 52 on the right side face 14R and the antenna pattern 28AP provided on the side trigger substrate 54 on the left side face 14L are hardly affected by a human body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mobile terminal.

  In recent years, some mobile terminals have a plurality of communication functions such as a GPS function, a wireless LAN function, and a wireless tag reading function in addition to telephone communication. In addition to a telephone communication antenna, a GPS antenna, a wireless LAN antenna, a wireless Plural types of antennas such as tag reading antennas are built in the housing. Patent Document 1 discloses a configuration in which a side trigger switch and an antenna are provided on a side surface of a casing.

JP 2000-151774 A

  By the way, it is thought that the structure like the said patent document 1 has provided the side trigger board | substrate for a side trigger switch detection, and an antenna separately. Since the side trigger substrate and the antenna are provided separately, there is a problem of increasing the size in order to save space.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a portable terminal that does not need to separately provide a side trigger substrate and an antenna pattern.

In the portable terminal of the present invention, the side trigger switch (25R) is provided on the side surface of the flat cubic housing (11). And
A side trigger board (52, 54) for detecting an operation of the side trigger switch (25R);
An antenna pattern (35AP, 28APP) is provided on the side trigger substrate (52, 54).
In addition, the code | symbol in each said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.

  In the portable terminal according to the first aspect, since the antenna pattern is provided on the side trigger board, it is not necessary to provide the side trigger board and the antenna pattern separately, and the integration contributes to downsizing. Even if the antenna pattern for wireless communication is provided on the front and back surfaces of the housing, the antenna pattern provided on the side trigger board on the side surface of the housing can avoid interference with the antenna pattern for wireless communication. it can. Further, since the side surface of the housing is not covered with the palm, the antenna pattern provided on the side trigger substrate is hardly affected by the human body.

  In the portable terminal according to claim 2, since the antenna pattern is placed over the peripheral edge of the pair of long sides and at least one short side of the side trigger substrate, the length is sufficient to allow the antenna pattern to correspond to the wavelength. It is adjustable.

  In the portable terminal according to the third aspect, since the antenna pattern is provided outside the polydome so as to avoid interference with the polydome, the antenna function can be ensured while the side trigger substrate functions reliably.

  In the portable terminal according to claim 4, since the antenna pattern is at least one for wireless LAN or GPS and is provided on the side trigger board, the side trigger board and the antenna pattern for wireless LAN or GPS are provided separately. There is no need. Even if the antenna pattern for wireless communication is provided on the front and back surfaces of the housing, the antenna pattern for wireless LAN or GPS provided on the side trigger board on the side surface of the housing is the antenna pattern for wireless communication. Interference with can be avoided.

  In the portable terminal according to claim 5, even if the antenna pattern for wireless communication is provided on the front surface and the back surface of the housing, the antenna patterns for wireless LAN and GPS provided on the side trigger board on the side surface of the housing are Interference with the antenna pattern for wireless communication can be avoided.

  In the portable terminal according to the sixth aspect, since the side trigger board is a flexible printed circuit board, it is extremely thin and can be bent freely. Therefore, a slight gap or a three-dimensional arrangement in the portable terminal is possible.

  In the portable terminal according to the seventh aspect, the antenna pattern provided on the side trigger substrate on the side surface of the housing can avoid interference with the antenna pattern for wireless communication provided on the front surface and the back surface of the housing.

It is a perspective view which shows the structure outline | summary of the portable terminal which concerns on embodiment. It is the perspective view which removed the back cover of the portable terminal of FIG. 1, and was seen. FIG. 3 is a block diagram illustrating the electrical configuration of the mobile terminal of FIG. 4A is a block diagram schematically illustrating the RFID tag processing unit in FIG. 3, and FIG. 4B is a block diagram schematically illustrating the information code reading unit in FIG. FIG. 5A is a plan view of a side trigger board on which an antenna pattern for GPS is provided, and FIG. 5B is a plan view of a side trigger board on which an antenna pattern for wireless LAN is provided.

Hereinafter, an embodiment in which a mobile terminal according to the present invention is embodied will be described with reference to the drawings.
The mobile terminal 10 according to the present embodiment is configured as a mobile information terminal that is carried by a user and used in various places, in addition to a mobile phone function using a normal public line, via an antenna. In addition to the function of reading and writing information stored in the wireless tag (RFID tag) T through the transmitted and received radio waves, it also has a function as an information code reader that reads an information code C such as a barcode or a two-dimensional code, External information can be read by two methods. Furthermore, a GPS function and a wireless LAN function are provided.

  As shown in FIGS. 1 and 2, the flat cubic mobile terminal 10 has an outer case formed by a casing 11, and the surface 12 of the casing 11 has a narrow frame (narrow bezel). The display screen 24a thus enlarged is arranged. In addition, the rear surface 13 of the housing 11 is provided with a battery replacement back cover 13a that is attached and detached when the battery 29a accommodated in the housing 11 is replaced. The housing 11 includes a front surface 12 and a back surface 13, a right side surface 14R, a left side surface 14L, a front surface 15F, and a rear surface 15B.

A side trigger switch (side trigger) 25R is provided on the right side surface 14R. A side trigger switch (not shown) is also provided on the left side surface 14L.
On the right side surface 14R, as a side trigger switch 25R, a power on / off side trigger switch 25Ra, an information code reading side trigger switch 25Rb for starting information code reading, a volume increasing side trigger switch 25Rc, and a volume decreasing side trigger switch 25Rd are provided. ing.

  As shown in FIG. 2, a side trigger board 52 for detecting the operation of the side trigger switch 25R on the right side surface 14R is provided on the right side (front side in FIG. 2) of the back cover 13a. Although not shown in FIG. 2, a side trigger board 54 (see FIG. 5B) for detecting the operation of the side trigger switch on the left side surface 14L is provided on the left side (the front side in FIG. 2) of the back cover 13a. ) Is provided. The side trigger boards 52 and 54 are flexible printed circuit boards. For this reason, since it is very thin and can be bent freely, a slight gap or a three-dimensional arrangement in the portable terminal is possible. The side trigger board 52 is provided with a polydome 55 that detects the operation of the side trigger switch 25R. As the polydome 55, a power supply polydome 55a that detects the operation of the power on / off side trigger switch 25Ra, a reading polydome 55b that detects the operation of the information code reading side trigger switch 25Rb, and a volume raising polydome that detects the operation of the volume raising side trigger switch 25Rc 55c, a volume reduction polydome 55d for detecting an operation of the volume reduction side trigger switch 25Rd is provided.

  As shown in FIG. 3, a control unit 21 that controls the entire mobile terminal 10 is provided in the housing 11 of the mobile terminal 10. The control unit 21 is composed mainly of a microcomputer, has a CPU, a system bus, an input / output interface, and the like, and constitutes an information processing apparatus together with the memory 22. In the memory 22, a predetermined program for executing wireless communication processing or the like is stored in advance so as to be executable by the control unit 21.

  The control unit 21 is connected to an LED 23, a touch panel 24, an operation unit 25, a vibrator 26, a buzzer 27, an external interface 28, a GPS unit 35, a telephone communication unit 36, and the like. The touch panel 24 is configured as a known touch panel type display device, and overlaps the display screen 24a of the display unit configured as a known display device such as a liquid crystal display and the display unit on the display screen 24a. On the other hand, a transparent operation panel that functions as a detection unit capable of detecting a range in which the pressing operation (contact) is performed is provided. In the touch panel 24, the display content of the display unit is controlled by the control unit 21. The operation unit 25 is configured to include the operation panel, so that a pressing operation (a touch range or the like) on the display screen 24a of the touch panel 24 can be detected. The operation unit 25 is further configured to detect the operation of the side trigger switch. Further, the LED 23, the vibrator 26 and the buzzer 27 are configured to be controlled by the control unit 21 and operate in response to a command from the control unit 21. The external interface 28 includes a wireless LAN antenna 28A, and is configured as an interface for performing data communication with an external device such as a server via a network or the like. It is configured to do. In addition, a power supply unit 29 is provided in the housing 11, and power is supplied to the control unit 21 and various electric components by the power supply unit 29 and the battery 29 a.

  The GPS unit 35 includes a GPS antenna 35A and detects the current position of the mobile terminal. The telephone communication unit 36 causes the mobile terminal to function as a mobile phone via a public line. The mobile communication antennas 36A and 36B provided on the front surface 12 side of the housing 11 and the mobile phone provided on the back surface 13 side. The communication antenna 36C and the three antennas are provided, and the three antennas are configured to perform communication by switching according to the communication status.

The control unit 21 is connected to a wireless tag processing unit 30 and an information code reading unit 40 that function as an information reading unit capable of reading external information.
First, the wireless tag processing unit 30 will be described with reference to FIG.
The wireless tag processing unit 30 performs electromagnetic wave communication with the wireless tag T in cooperation with the antenna 30A and the control unit 21, reads data stored in the wireless tag T, or writes data to the wireless tag T. It functions to perform. The wireless tag processing unit 30 is configured as a circuit that performs transmission by a known radio wave system, and includes a transmission circuit 31, a reception circuit 32, a matching circuit 33, and the like as schematically illustrated in FIG. Have.

  The transmission circuit 31 includes a carrier oscillator, an encoding unit, an amplifier, a transmission unit filter, a modulation unit, and the like, and is configured to output a carrier (carrier wave) having a predetermined frequency from the carrier oscillator. The encoding unit is connected to the control unit 21, encodes transmission data output from the control unit 21, and outputs the transmission data to the modulation unit. The modulation unit is a part to which the carrier (carrier wave) from the carrier oscillator and the transmission data from the encoding unit are input. The carrier (carrier wave) output from the carrier oscillator is encoded at the time of command transmission to the communication target. A modulated signal that is ASK (Amplitude Shift Keying) modulated by the encoded transmission code (modulated signal) output from the encoding unit is generated and output to the amplifier. The amplifier amplifies the input signal (the modulated signal modulated by the modulation unit) with a predetermined gain, and outputs the amplified signal to the transmission unit filter. The transmission unit filter filters the amplified signal from the amplifier. The transmission signal is output to the antenna 30A via the matching circuit 33. When the transmission signal is output to the antenna 30A in this way, the transmission signal is radiated to the outside from the antenna 30A as a transmission radio wave.

  On the other hand, the response signal received by the antenna 30 </ b> A is input to the receiving circuit 32 via the matching circuit 33. The reception circuit 32 includes a reception unit filter, an amplifier, a demodulation unit, a binarization processing unit, a decoding unit, and the like. After the response signal received through the antenna 30A is filtered by the reception unit filter, The signal is amplified by an amplifier, and the amplified signal is demodulated by a demodulator. Then, the demodulated signal waveform is binarized by the binarization processing unit, decoded by the decoding unit, and then the decoded signal is output to the control unit 21 as received data.

Next, the information code reading unit 40 will be described with reference to FIG.
The information code reading unit 40 functions to optically read the information code C, and as shown in FIG. 4B, a light receiving sensor 43 comprising a CCD area sensor, an imaging lens 42, and a plurality of LEDs. And an illumination unit 41 including a lens and the like, and cooperates with the control unit 21 to read the information code C (bar code or two-dimensional code) attached to the reading object R. Function.

  When reading is performed by the information code reading unit 40, first, the illumination light Lf is emitted from the illumination unit 41 instructed by the control unit 21, and the illumination light Lf passes through a reading port (not shown) to be read R. Is irradiated. Then, the reflected light Lr reflected by the information code C from the illumination light Lf is taken into the apparatus through the reading port, and is received by the light receiving sensor 43 through the imaging lens 42. The imaging lens 42 disposed between the reading port and the light receiving sensor 43 is configured to form an image of the information code C on the light receiving sensor 43, and the light receiving sensor 43 forms an image of the information code C. The corresponding light reception signal is output. The light reception signal output from the light reception sensor 43 is stored in the memory 22 (FIG. 3) as image data, and is used for decoding processing for acquiring information included in the information code C. The information code reading unit 40 is provided with an amplifying circuit for amplifying the signal from the light receiving sensor 43 and an AD converting circuit for converting the amplified signal into a digital signal. Is omitted.

FIG. 5A is a plan view of the side trigger board 52 for detecting the operation of the side trigger switch 25R on the right side surface 14R of the housing 11 shown in FIG.
The side trigger board 52 has a rectangular shape having a pair of long sides 52L and 52L and a pair of short sides 52S and 52S, and detects the operation of the polydome 55 described above, that is, the power on / off side trigger switch 25Ra. Polydome 55a, reading polydome 55b for detecting the operation of the information code reading side trigger switch 25Rb, volume raising polydome 55c for detecting the operation of the volume raising side trigger switch 25Rc, volume lowering polydome 55d for detecting the operation of the volume lowering side trigger switch 25Rd Is provided. A wiring 56 is connected to each polydome 55. The antenna pattern 35AP of the GPS antenna 35A is placed around the periphery of the pair of long sides 52L and 52L and the pair of short sides 52S and 52S while avoiding interference with the polydome 55 outside the polydome 55. Therefore, the GPS antenna pattern 35AP can be adjusted to a length corresponding to the wavelength. The GPS unit 35 uses 1.5 GHz band radio waves, and the pattern length of the antenna pattern 35AP is set to about 10 cm, which is a half wavelength of 1.5 GHz. The circuit wiring such as the wiring 56 is 1 mm or more from the antenna pattern 35AP of the GPS antenna 35A, and the influence on the antenna characteristics is suppressed as much as possible.

FIG. 5B is a plan view of the side trigger board 54 for detecting the operation of the side trigger switch on the left side surface 14L shown in FIG.
The side trigger substrate 54 has a rectangular shape having a pair of long sides 54L and 54L and a pair of short sides 54S and 54S, and a plurality of polydomes 55 are provided. A wiring 56 is connected to each polydome 55. The antenna pattern 28AP of the wireless LAN antenna 28A is placed around the periphery of the pair of long sides 54L and 54L and the pair of short sides 54S outside the polydome 55 to avoid interference with the polydome 55. Therefore, the wireless LAN antenna pattern can be adjusted to a length corresponding to the wavelength. The external interface 28 uses 2.4 GHz band radio waves, and the pattern length of the antenna pattern 28AP is set to about 6.25 cm, which is a half wavelength of 2.4 GHz. The circuit wiring such as the wiring 56 is 1 mm or more from the antenna pattern 28AP of the wireless LAN antenna 28A, and the influence on the antenna characteristics is suppressed as much as possible.

  In the mobile terminal 10 of the embodiment, the GPS antenna pattern 35AP is placed on the periphery of the pair of long sides 52L and 52L and at least one short side 52S of the side trigger board 52, and the wireless LAN antenna pattern 28AP is the side trigger. Since the pair of long sides 54L, 54L and at least one short side 54S of the substrate 54 are provided around the periphery, the length can be taken sufficiently and the antenna pattern can be adjusted to the length corresponding to the wavelength.

  In the portable terminal 10 of the embodiment, the antenna patterns 35AP and 28AP are provided outside the polydome 55 so as to avoid interference with the polydome 55, so that the side trigger boards 52 and 54 function reliably and the antenna function is also secured. can do.

  In the mobile terminal according to the embodiment, the antenna patterns 35AP and 28AP are provided on the side trigger boards 52 and 54, so that it is not necessary to provide the side trigger board and the antenna pattern separately. Even if the mobile communication antennas 36A, 36B, and 36C are provided on the front surface 12 and the back surface 13 of the housing 11, the antenna pattern 35AP provided on the side trigger board 52 on the right side surface 14R of the housing 11 and the housing 11 The antenna pattern 28AP provided on the side trigger board 54 on the left side surface 14L can avoid interference with the mobile communication antennas 36A, 36B, 36C. Further, since the right side surface 14R and the left side surface 14L of the housing 11 are not covered with the palm, the antenna pattern 35AP provided on the side trigger substrate 52 on the right side surface 14R and the side trigger substrate 54 on the left side surface 14L are provided. The antenna pattern 28AP is hardly affected by the human body.

  In the portable terminal of the embodiment, the antenna pattern is at least one for wireless LAN or GPS, and is provided on the side trigger board. Therefore, it is necessary to provide the side trigger board and the antenna pattern for wireless LAN or GPS separately. There is no. Even if the mobile communication antennas 36A, 36B, and 36C are provided on the front surface 12 and the rear surface 13 of the housing 11, the wireless LAN provided on the side trigger boards 52 and 54 on the right side surface 14R and the left side surface 14L of the housing 11 is provided. The antenna pattern for GPS or GPS can avoid interference with the antenna pattern for mobile communication.

In the above-described embodiment, the mobile terminal that reads the information code is exemplified. However, the configuration of the present invention is applicable to a mobile terminal that cannot read the information code.

DESCRIPTION OF SYMBOLS 10 Mobile terminal 11 Case 14L Left side surface 14R Right side surface 25R Side trigger switch 28A Wireless LAN antenna 28AP Antenna pattern 35A GPS antenna 35AP Antenna pattern 36A, 36B, 36C Mobile communication antenna 52 Side trigger board 54 Side trigger board 55 Polydome

Claims (7)

In a portable terminal equipped with a side trigger switch on the side of a flat cubic housing,
A side trigger board for detecting the operation of the side trigger switch;
A portable terminal comprising an antenna pattern provided on the side trigger substrate. The mobile terminal according to claim 1, wherein
The side trigger substrate includes a rectangular shape having a pair of long sides and a pair of short sides,
The antenna pattern is characterized in that the antenna pattern is placed on the periphery of the pair of long sides and at least one short side of the side trigger substrate. The portable terminal according to claim 1 or 2, wherein
The side trigger board is provided with a polydome for detecting the operation of the side trigger switch,
The antenna pattern is provided outside the polydome so as to avoid interference with the polydome. The mobile terminal according to any one of claims 1 to 3,
The antenna pattern is at least one for wireless LAN or GPS. The mobile terminal according to claim 4,
The antenna pattern for the wireless LAN is provided on the side trigger board on one side of the housing,
The antenna pattern for the GPS is provided on the side trigger board on the other side surface of the housing. The mobile terminal according to any one of claims 1 to 5,
The side trigger board comprises a flexible printed circuit board. The mobile terminal according to any one of claims 1 to 6,
Antenna patterns for wireless communication are provided on the front and back surfaces of the housing.

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