JPH09149107A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a main body of the telephone set free from both hands in a speech state without deteriorating the sensitivity of radio transmission reception. SOLUTION: A main body 1 of the telephone set is provided with a built-in microphone 3 picking up a voice to be sent, a built-in speaker 2 sounding a received voice, and a headset jack 24 to which an external headset 17 consisting of a headset earphone 19 and a headset microphone 18 is plugged, and also with a changeover means that selects the built-in microphone 3 for voice pickup when the external headset 1'7 is not plugged in the headset jack 24 or selects the headset microphone 18 for voice pickup when plugged in, and with posture hold mechanism at the lower part of the main body 1, in which a cover 14 of an operation section 11 is hinged with a hinge 26 and the cover 14 is held fixed at a desired angle with respect to the main body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone device for wirelessly transmitting and receiving voice.

[0002]

2. Description of the Related Art Conventionally, there has been a mobile phone device provided with a receiving earphone for listening to a voice received during a call and a solar cell (for example, see Japanese Utility Model Laid-Open No. 3-109447). There is also a mobile phone device (see, for example, Japanese Patent Laid-Open No. 6-30095) having a headset device including a microphone for transmission and an earphone for reception in the main body.

[0003]

However, in the conventional portable telephone device, since the user must always hold the portable telephone device main body in the hand to make a call, both hands cannot be used during the call, and for example, a personal computer cannot be used. There is a problem in that it is not possible to easily carry out a task such as talking to the other party while operating a terminal device such as a computer. In addition, when the conventional mobile phone device is placed on a desk or the like and used, the main body is in a lying state, which causes a problem that the antenna for wireless transmission / reception becomes horizontal and the transmission / reception sensitivity is significantly lowered. there were.

The present invention has been made in view of the above points, and an object thereof is to enable the main body of the portable telephone device to be used while being separated from both hands without deteriorating the sensitivity of wireless transmission / reception. To do.

[0005]

In order to achieve the above object, the present invention provides a mobile phone device for wirelessly transmitting and receiving voice, in which a main body having an operation section is provided with a built-in microphone for inputting voice to be transmitted, and a receiving unit. A speaker for outputting the sound, and a connection jack portion of an external headset including an earphone and a microphone. The connection jack portion outputs sound from the built-in microphone when the external headset is not connected. It has a switching means for inputting and inputting voice from the microphone of the external headset when the external headset is connected, and the cover of the operation part is connected to the lower part of the main body by a hinge part, and the cover is provided. A posture holding mechanism for holding and holding the above-mentioned body at a required angle is provided.

Further, it is preferable that the posture holding mechanism has means for variably setting an angle formed by the main body and the cover. Further, it is preferable that the main body is provided with a fall-prevention member that extends in the opposite direction on the same surface as the development surface of the cover and prevents the main body from falling over. Furthermore, a solar cell may be provided on the surface of the cover facing the operation portion of the main body.

In the portable telephone device according to the present invention, when an external headset composed of an earphone and a microphone is not connected to the connection jack portion, the voice is input from the built-in microphone for inputting the voice to be transmitted, and the external headset is used. When the is connected, you can switch to voice input from the microphone of the external headset, and the cover of the operation part that is connected to the bottom of the main body by the hinge can be fixed and held at the required angle with respect to the main body. , It can be used without standing the body on a desk or the like, listening to the received voice without putting the ear on the body and bringing the mouth close to the body to input the voice.

Therefore, the user can talk with the portable telephone device in a state where the portable telephone device is separated from both hands, and the operability during the conversation can be improved. In addition, since the antenna for wireless transmission / reception does not become horizontal when the main body is laid down, the sensitivity of wireless transmission / reception during a call does not decrease and the communication performance of the mobile phone device is fully utilized. can do.

If the posture holding mechanism can variably set the angle formed between the main body and the cover, the angle of the antenna attached to the main body can be adjusted so that good sensitivity can be obtained during radio communication. You can

Further, if a fall prevention member is provided on the main body on the same surface as the development surface of the cover in the opposite direction to prevent the main body from falling over, the posture of the main body when the main body is standing and used It is possible to stabilize and prevent falls, and the operability can be further improved.

Furthermore, if the solar cell is provided on the surface of the cover facing the operation portion of the main body, the electric power from the solar cell can be used, and the energy consumption of the built-in rechargeable battery can be saved. . Furthermore, when the main body is erected, the solar cell can be in a state in which it is easy to receive light from the sun or a fluorescent lamp, so that charging efficiency can be improved.

[0012]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is an external perspective view of a mobile phone device according to an embodiment of the present invention. This mobile phone device is a digital mobile phone, and has a built-in microphone 3 for inputting a voice to be transmitted, a built-in speaker 2 for outputting a received voice, and a wireless transmission / reception, to a main body 1 having an operation unit 11 for wireless communication. It has an antenna 16 for.

An earphone (referred to as "headset earphone") 19 and a microphone ("headset microphone")
(Referred to as “headset jack”) 24 for connecting a headset plug 21 of an external headset 17 and an LCD for displaying various operation information related to wireless communication. The display unit 25 is provided.

Further, a posture holding mechanism is provided at the lower part of the main body 1 to which the cover portion 14 of the operation portion 11 is connected by a hinge 26, and which holds the cover portion 14 with respect to the main body 1 at a predetermined angle. Further, the posture holding mechanism has means for variably setting the angle formed by the main body 1 and the cover portion 14, the details of which will be described later.

Further, the development surface 1 of the cover portion 14 is attached to the main body 1.
An arm-shaped fall prevention member 30 for preventing the main body 1 from falling is provided so as to be housed in the main body 1 by deploying in the opposite direction on the same plane as 4a. The shape of the fall prevention member is the body 1
Other shapes may be used as long as they can hold the fall of. Furthermore, the solar cell 15 is provided on the surface 14 a of the cover portion 14 facing the operation portion 11 of the main body 1.

FIG. 2 is a block diagram showing the internal structure of this portable telephone device. During transmission, this mobile phone device guides the voice collected by the headset microphone 18 or the built-in microphone 3 to the analog / digital (A / D) converter 6 and quantizes it into a digital signal. After that, the voice codec processing unit 7 performs voice coding, and time division multiplexing (TDMA)
The control circuit 8 divides the time slot, the RF circuit 10 modulates it, and the antenna 16 radiates it as a radio wave.

On the other hand, when receiving a voice, the received wave received by the antenna 16 is demodulated by the RF circuit 10, and the voice codec processing unit 7 and the TDMA control circuit 8 perform a D / A conversion through a process reverse to that at the time of transmitting. It is led to the device 20, converted into an analog signal there, amplified by the amplifying unit 22, and output as voice by the built-in speaker 2 or voice output to the headset earphone 19 via the headset plug 21.

Further, the CPU 9 controls the entire portable telephone device and uses this work area based on the control program stored in the ROM / RAM 12 together with the above-mentioned processing at the time of transmission and reception. The processing based on the operation input from the operation unit 11 and the processing of displaying various messages on the display unit 25 are performed.

Further, the power supply section 13 is a rechargeable battery for supplying electric power to each section in the portable telephone device, and the cover section 14
The solar cells 15 provided in the above are connected in parallel, and the power from the solar cells 15 is automatically charged.

3 and 4 show the headset jack 2
4 is an explanatory diagram of the headset plug 21 and the headset plug 21. FIG. In the headset plug 21, the speaker circuit contact portion 23 is connected to the headset speaker 19, and the microphone circuit contact portion 3
1 is connected to the headset microphone 18. The headset jack 24 has switches 4 and 5 for selecting the built-in or external headset 17 microphone and earphone (or speaker) by attaching and detaching the headset plug 21.

During a normal call without using the external headset 17, as shown in FIG. 3, the terminals T1 and T2 of the switch 4 are closed and the terminals T5 and T6 of the switch 5 are closed, respectively. The circuit of the built-in speaker 2 is activated, the sound collected by the built-in microphone 3 is output to the A / D converter 6, and the received sound from the D / A converter 20 is output to the built-in speaker 2.

On the other hand, during a call with the external headset 17 attached to the main body 1, when the headset plug 21 is inserted into the headset jack 24, as shown in FIG.
The tip of the headset plug 21 is the terminal T of the switch 4.
1 and the terminal T6 of the switch 5 are pushed up in the arrow A direction.

As a result, the terminal T3 of the switch 4 comes into contact with the microphone circuit contact portion 31 and pushes up the terminal T1 in the direction of arrow A, and the terminal T1 and the microphone circuit contact portion 3 via the terminal T3.
1 and closed, and the terminal T3
1 is pushed up to open the terminals T1 and T2, and the sound collected from the headset microphone 18 is output to the A / D converter 6 via the terminals T3 and T1.

The terminal T4 of the switch 5 contacts the speaker circuit contact portion 23 and pushes up the terminal T6 in the direction of the arrow A, and the terminal T6 and the speaker circuit contact portion 2 are connected via the terminal T4.
3 and are closed, and the terminal T4 allows the terminal T
6 is pushed up to open the terminals T4 and T5, and the voice received from the D / A converter 20 is output to the headset speaker 19.

FIG. 5 is an explanatory view of the posture holding means of the mobile phone unit 1. The hinge 26, which serves as the opening / closing axis of the cover portion 14, is provided with four latch grooves 29a to 29d.
Is provided with a latch claw 28 supported by a spring member 27 at a position facing each of the latch grooves 29a to 29d, and a latch serving as an attitude holding unit that holds the cover portion 14 at a predetermined angle with respect to the main body 1. It constitutes the mechanism.

Next, a method of using this portable telephone device will be described with reference to FIGS. 1, 5 and 6. Normal usage of this mobile phone device (when using it in your hand)
Opens the cover portion 14 until the latch claw 28 shown in FIG. 5 fits into the latch groove 29a, and the main body 1 shown in FIG.
Then, the cover portion 14 is set at a predetermined angle. Then, the built-in microphone 3 of the cover portion 14 and the built-in speaker 2 of the main body 1 are used to talk.

Also, when making a call using the external headset 17 while standing up on a desk or the like for the purpose of hands-free, the cover portion 14 is opened until the latch claw 28 fits into the latch groove 29b, and the cover portion 14 is used as a main body. Hold at about 90 degrees to 1. Further, the fall prevention member 30 is pulled out from the main body 1 and set.

Therefore, as shown in FIG.
The main body 1 can be placed on the desk surface 35 in a substantially upright state without tipping over. Further, the solar cells 15 provided on the cover portion 14 can be charged at the same time. Then, a call is made using the headset microphone 18 and the headset earphone 19 of the external headset 17.

Further, the fall prevention member 30 is housed in the main body 1, the cover portion 14 is opened until the latch claw 28 fits into the latch groove 29c of the hinge 26, and the cover portion 14 is opened at a required angle θ with respect to the main body 1. Fixed to. The required angle θ is 9
The angle is within 0 degrees, and can be set to an arbitrary angle by changing the position of the latch groove provided on the hinge 26.

Therefore, as shown in FIG.
The main body 1 can be mounted in a state in which the main body 1 is tilted by the required angle θ with respect to the desk top surface 35, and the antenna 16 can be adjusted to an angle at which the sensitivity of wireless communication is good. In this case, even if the overturn preventing member 30 is not used, only the cover portion 14 is used for the main body 1.
Can be prevented from falling.

Although FIG. 5 shows the case where four latch grooves are provided, if more latch grooves are provided, the angle of the antenna 16 can be adjusted in several steps. It is convenient because you can perform detailed operations.

When not in use, the fall prevention member 30
Is stored in the main body 1. Further, when the cover portion 14 is closed with respect to the main body 1, the latch claw 28 is fitted into the latch groove 29d of the hinge 26 and holds the cover portion 14 in the main body 1 in a closed state. It is possible to prevent accidental opening.

According to the mobile phone device of this embodiment, when the user talks using the external headset, the user can talk with the mobile phone device removed from his hand (hands-free). The mobile phone device can be placed upright on a desk or the like and can be placed without falling, whereby the antenna can be always upright during a call. Therefore, the inconvenience of lowering the sensitivity of wireless communication due to the antenna lying horizontally with the main body lying down is eliminated, and the communication performance of the mobile phone device can be fully utilized and the operability is improved. You can

Further, since the posture of the main body can be placed at an arbitrary angle with respect to its installation location, the angle of the antenna of the main body can be adjusted so that good sensitivity can be obtained during wireless communication. Therefore, it is possible to perform a hands-free call without sacrificing the communication performance of the mobile wireless device, and improve the operability.

Further, since the fall prevention member provided on the main body stabilizes the posture of the main body, the fall can be prevented, and the user can carry out a hands-free call with peace of mind. Then, when the cover portion is opened and used, the electric power from the solar cell can be always used, and the energy consumption of the built-in rechargeable battery can be saved. Since the solar cell is arranged at a position where light is sufficiently irradiated when the main body 1 is placed on a desk and placed thereon, charging can be efficiently performed.

[0036]

As described above, according to the portable telephone device of the present invention, the main body of the portable telephone device can be used away from both hands without lowering the sensitivity of wireless transmission / reception during a call.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a mobile phone device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of the mobile phone device shown in FIG.

FIG. 3 is an explanatory diagram of the headset jack 24 and the headset plug 21 shown in FIG.

FIG. 4 is an explanatory diagram when the headset plug 21 shown in FIG. 3 is attached to a headset jack 24.

5 is an explanatory diagram of a posture holding unit of the mobile phone device body 1 shown in FIG.

6 is a side view when the mobile phone device shown in FIG. 1 is placed on a desk.

[Explanation of symbols]

1: Mobile phone device body 2: Built-in speaker 3: Built-in microphone 4: Switch (SW1) 5: Switch (SW2) 6: A / D converter 7: Voice codec processing unit 8: TDMA control circuit 9: CPU 10: RF Circuit 11: Operation part 12: ROM / RAM 13: Power supply part 14: Cover part 15: Solar battery 16: Antenna 17: External headset 18: Headset microphone 19: Headset earphone 20: D / A converter 21: Head Set plug 22: Amplifying section 23: Speaker circuit contact section 24: Headset jack 25: Display section 26: Hinge 27: Spring member 28: Latch claw 29a to 29d: Latch groove 30: Fall prevention member 31: Microphone circuit contact section

Claims (4)

[Claims] 1. A mobile phone device for wirelessly transmitting and receiving voice, comprising: a main body having an operation unit, a built-in microphone for inputting voice to be transmitted, a speaker for outputting received voice, an earphone, and a microphone. An external headset connection jack section for inputting audio from the built-in microphone when the external headset is not connected, and when the external headset is connected. A posture holding means that has a switching means for inputting a voice from a microphone of an external headset, a cover of the operation portion is coupled to a lower portion of the main body by a hinge portion, and the cover is fixedly held at a predetermined angle with respect to the main body. A mobile phone device having a mechanism. 2. The mobile phone device according to claim 1, wherein the posture holding mechanism has means for variably setting an angle formed by the main body and the cover. 3. The mobile phone device according to claim 1 or 2, wherein the main body is provided with a fall-prevention member that expands in the opposite direction on the same surface as the expansion surface of the cover to prevent the main body from falling over. A mobile phone device characterized by the above. 4. The mobile phone device according to any one of claims 1 to 3, wherein a solar cell is provided on a surface of the cover facing the operation unit of the main body.