JP2003338873A - Handsfree device for portable telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handsfree device onto which a portable telephone set can be easily mounted when only charging is performed. <P>SOLUTION: This handsfree device 1 is provided with a first portable telephone set holding part 2 having a connector 21 to be connected to an external connection terminal 6 of the portable telephone set 5, a second portable telephone holding part 3 having a pair of feed terminals 31 to be brought into contact with a pair of charge terminals 7 of the portable telephone set 5, respectively, provided separately from the external connection terminal 6, a means for performing handsfree speech communication by using the portable telephone set 5 while the portable telephone set 5 is mounted onto the first portable telephone set holding part 2, and a means for feeding power to a battery 59 of the mounted portable telephone set 5 through the external connection terminal 6 or the charge terminals 7. Further, the handsfree device 1 is provided with an on/off switch 13 and a display means 14 for displaying an on/off state and commands the portable telephone set 5 to shift to a speech communication state through the external connection terminal 6 when the on/off switch 13 is turned on. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hands-free device having a charging function in addition to a hands-free function for making a call without holding a mobile phone.

[0002]

2. Description of the Related Art Heretofore, various hands-free devices have been proposed which allow a user to talk by mounting a mobile phone without holding the mobile phone. Generally, a hands-free device is a speaker that generates a reception sound from a reception voice signal received by a mobile phone, a microphone that detects a user's voice and generates a transmission voice signal, and an amplifier that amplifies these voice signals. And a connector part to which the external connection terminal of the mobile phone is detachably connected. Between the mobile phone and the hands-free device, the reception voice signal received by the mobile phone and the transmission voice signal generated by the microphone can be transmitted and received via the external connection terminal.

In the hands-free device as described above, when the capacity of the battery of the mobile phone is reduced while the mobile phone is being mounted, it is necessary to remove the mobile phone from the hands-free device and charge it using a charger. It was Therefore, in recent years, various hands-free devices having a charging function have been proposed. The hands-free device is provided with a charging circuit unit that is connected to a household outlet or an automatic power source and that generates a predetermined voltage. The external connection terminal of the mobile phone is composed of a plurality of terminals each having a predetermined purpose, and two of the plurality of terminals forming the external connection terminal of the mobile phone are connected to the battery of the mobile phone. Allotted for power supply. The battery is connected to the charging circuit section of the hands-free device through the terminal and is charged with a predetermined voltage.

[0004]

As shown in FIG. 4, the external connection terminal (6) of the mobile phone (5) is generally arranged in a recess (66) formed in the bottom of the mobile phone (5). And the recess
A protective cap member (67) is detachably attached to the opening of (66). Therefore, when mounting the mobile phone on the hands-free device, it is necessary to remove the cap member (67) from the opening to expose the external connection terminal (6).

Although a hands-free device having a charging function is often used for charging purposes only, the cap member (67) is removed each time charging and the external connection terminal (6) is used as a connector of the hands-free device. It is extremely troublesome to connect. Further, when the cap member (67) is completely separated from the mobile phone, the cap member (67) is easily lost due to frequent removal.

The present invention has been made in order to solve the above problems, and provides a hands-free device in which a mobile phone can be easily mounted when only charging is performed.

[0007]

A hands-free device according to the present invention comprises a first mobile phone holding portion (2) having a connector (21) for coupling with an external connection terminal (6) of a mobile phone (5), A second mobile phone holding portion (3) having a pair of power supply terminals (31) that abut against a pair of charging terminals (7) of the mobile phone (5) provided separately from the external connection terminal (6); A means for conducting a hands-free call using the mobile phone (5) when the mobile phone (5) is attached to the first mobile phone holding part (2),
A means for supplying power to the battery (59) of the mounted mobile phone (5) through the external connection terminal (6) or the charging terminal (7) is provided.

Further, the hands-free device according to the present invention comprises an on / off switch and display means for displaying the on / off state of the on / off switch, and when the on / off switch is in the on state, the first portable telephone holding unit is provided. When the mounted mobile phone receives the call signal, the mobile phone is instructed to shift to the call state via the external connection terminal.

[0009]

In the hands-free device, the battery of the mobile phone is charged through the external connection terminal of the mobile phone, and the battery of the mobile phone is used in addition to the first mobile phone holding portion for making a hands-free call. A second mobile phone holding unit for charging is separately provided. The mobile phone is provided with a pair of charging terminals separately from the external connection terminals, and the second mobile phone holding portion includes a pair of power supply terminals that come into contact with these terminals. Therefore, when the hands-free device is used only for charging, if the mobile phone is attached to the second mobile phone holder, charging can be easily performed without removing the cap member.

When the mobile telephone mounted on the first mobile telephone holding portion receives the call signal while the on / off switch is in the on state, the call signal or a signal notifying that the call signal has been received is the external connection terminal. To the hands-free device via. When the handsfree device receives the signal, it instructs the mobile phone to shift to the call state, and the mobile telephone shifts to the call state. Therefore, the user can immediately perform a hands-free conversation without bothering to press the call start button of the mobile phone. Further, since the display means for displaying the on / off state of the on / off switch is provided, the user can easily confirm whether or not the handsfree device is in a state in which the mobile phone is brought into a talking state.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a hands-free device according to the present invention.
It is a perspective view of (1). (a) shows the hands-free device (1) from the side of the first mobile phone holding part (2) for hands-free calling, and (b) shows the side of the second mobile phone holding part (3) dedicated to charging. It is a perspective view at the time of seeing. The hands-free device (1) has a housing (4) made by molding a synthetic resin, and the inside of the housing (4) has an amplifier section (16) described later.
Also, internal devices such as the control unit (17) are housed. Case
One inclined surface (41) (a) that connects the trapezoidal sides of (4)
In the figure, a first mobile phone holding portion (2) having a hollow shape for holding the mobile phone (5) in an upright state is formed. On the bottom surface of the first mobile phone holding portion (2), a connector (21) connected to the external connection terminal (6) of the mobile phone (5) is vertically projected. A speaker is provided below the first mobile phone holding portion (2).
(11), microphone (12), on / off switch (13), and LED (14) are attached. An AC adapter connector (15) is attached to the side surface of the housing (4).

On the other inclined surface (42) (FIG. 2B) connecting the trapezoidal side surfaces of the housing (4), a second concave mobile phone holding portion for holding the mobile phone (5) in an upright state. (3) is formed. A pair of power supply terminals (31) are provided on the bottom surface of the second mobile phone holding portion (3) in a protruding manner. As shown in FIG. 4, a cap member fitted in a recess (66) formed in the bottom of the mobile phone (5).
(67) or a pair of charging terminals so as to sandwich the recess (66)
(7) is provided. The power supply terminal (31) is the mobile phone (5)
Is arranged so as to come into contact with the charging terminal (7) when it is mounted on the second mobile phone holding portion (3).

FIG. 2 is a block diagram showing an outline of a mobile phone (5) mounted on the hands-free device (1). The mobile phone (5) is connected to the antenna (51), the antenna (51), the speaker (52) and the microphone (53), and a transmission / reception circuit unit (54) for converting and restoring signals to be transmitted and received, Display unit (55) with LCD showing information such as telephone number to user
An operation unit (56) having a keypad for the user to input a telephone number, a control unit (57) for controlling these internal devices, and a power supply circuit unit (58) for supplying power to these internal devices. )
And a battery (59) connected to the power circuit section (58).

The external connection terminal (6) is composed of a plurality of terminals, one of which is a charging terminal (62) connected to the battery (59). Further, the external connection terminal (6) has terminals (63) (64) connected to the transmission / reception circuit section (54).
The reception signal output terminal (63) is a terminal for transmitting a reception voice signal from the transmission / reception circuit section (54) to the handsfree device (1), and the transmission signal input terminal (64) is a handsfree device.
This is a terminal for transmitting the transmission voice signal from (1) to the same circuit section (54). In addition to these terminals, the external connection terminal (6) includes a control information output terminal (65) connected to the control unit (57), a control information input terminal (66), a clock signal output terminal, a serial signal output terminal, and It has the same input terminal (not shown) and the like. The pair of charging terminals (7) provided separately from the external connection terminals (6) are also connected to the battery (59) like the charging terminals (62) of the external connection terminals (6).

FIG. 3 is a block diagram showing an outline of the hands-free device (1). External connection terminal (6) of mobile phone (5)
The connector (21) to be coupled with is provided with terminals (22-26) corresponding to the terminals (62-66) constituting the external connection terminal (6). When the external connection terminal (6) and the connector (21) are combined, these terminals (22-26) are combined with the terminals (62-66) of the corresponding external connection terminals (6). The reception signal input terminal (23) is connected to the amplifier section (16), and by coupling this with the reception signal output terminal (63) of the external connection terminal (6), the transmission / reception circuit section of the mobile phone (5) ( The received voice signal is sent from 54) to the amplifier section (16). A speaker (11) is connected to the amplifier section (16), and the speaker (11) generates a reception sound based on the received voice signal amplified by the amplifier section (16).

The connector (21) is provided with an external connection terminal (6).
The transmission signal output terminal (2
The microphone (12), which has 4) and is connected to the amplifier section (16), detects a user's utterance and generates a transmission voice signal, and the voice signal is amplified by the amplifier section (16). Sent to the transmission / reception circuit section (54) of the mobile phone (5). The microphone (12) of the hands-free device (1) is used to generate the transmission audio signal.
Instead of, the microphone (53) of the mobile phone (5) may be used.

The control unit (17) controls internal devices such as the amplifier unit (16) and sends and receives a predetermined signal to and from the mobile phone (5). The connector (21) has a control signal input terminal (25) coupled to the control signal output terminal (65) of the external connection terminal (6), and the control unit (17) has a control unit of the mobile phone (5). The control signal from (57) can be transmitted. Further, the connector (21) has a control signal output terminal (26) coupled to the control signal input terminal (66) of the external connection terminal (6), and receives the control signal from the control unit (17) in the mobile phone. It can be transmitted to the control unit (57) of (5). connector
In addition to (21), there is a clock signal output terminal connected to the control section (17), the same input terminal, a serial signal input terminal, the same output terminal (not shown), etc. It is connected to the corresponding terminal of the external connection terminal (6).

When the call signal sent from the other party of the call is received, the cellular phone (5) enters a call state when the user presses a call button (not shown) which is a part of the operation unit (56). However, in the hands-free device (1) of the present invention, when the ON / OFF switch (13) connected to the control unit (17) is ON, the mobile phone (1) attached to the first mobile phone holding unit (2) ( In 5), when the call signal is received, it is possible to automatically shift to the call state. First mobile phone holder (2)
Connect the external connection terminal (6) from the mobile phone (5) attached to
That is, a signal indicating that the mobile phone (5) has received the call signal is sent to the control unit (17) of the handsfree device (1) via the control signal output terminal (65). Alternatively, a calling signal is sent to the amplifier section (16) via the reception signal output terminal (63), and a signal indicating that the calling signal has been received is sent from the amplifier section (16) to the control section (17). . Upon receiving this signal, the control unit (17) transmits a call state transition command signal to the control unit (57) of the mobile phone (5). The shift command signal is sent to the control unit (57) through the external connection terminal (6), that is, the control signal input terminal (66), and the control unit (57) shifts the mobile phone (5) to the call state. To do. This process is not performed if the on / off switch (13) is on. The LED (14) is provided so that it lights up when the on / off switch (13) is turned on, and the user can automatically call the mobile phone (5) by blinking the LED (14). It is possible to easily recognize whether or not the state is to shift to. In addition, the display of this state is LE
A display means such as a light bulb or LCD may be used instead of D (14).

The connector (21) has a pair of power supply terminals (22).
Are also provided, which are respectively coupled to the charging terminal (62) of the external connection terminal (6) of the mobile phone (5). The power supply terminal (22) of the connector (21) is connected to the charging circuit section (18), and the charging circuit section (18) has a power supply section (19) and the power supply section (19) has an AC adapter. It is connected to the connector (15). An AC adapter (not shown) connected to a household 100V power source is connected to a power source section (19) via an AC adapter connector (15), and the power source section (19) is connected to an amplifier section (1).
Power is supplied to 6), the control unit (17), and the charging circuit unit (18). The charging circuit section (18) charges the battery (59) of the mobile phone (5) by applying a predetermined voltage between the power supply terminals (22). The power supply section (19) is not only a household 100V power supply,
It can also be connectable to a 12V power supply of a car through a cigarette lighter socket.

With the above structure, the mobile phone (5) is attached to the first mobile phone holding part (2), and the external connection terminal (6) and the connector (21) of the hands-free device (1) are connected. If combined, hands-free communication is possible and at the same time, the mobile phone (5) is charged.

On the other hand, the hands-free device (1) is a connector
In addition to the power supply terminal (22) of (21), the second mobile phone holding portion
(3) also has a power supply terminal (31). These power supply terminals (3
1) is also connected to the charging circuit section (18), and a predetermined voltage is applied between the power supply terminals (31). Second mobile phone holder (3)
When the mobile phone (5) is attached to the second mobile phone holding part
Mobile phone (5) on the power supply terminal (31) located at the bottom of (3)
The charging terminal (7) comes into contact, and the mobile phone (5) is charged.
As shown in FIG. 4, on the bottom surface of the mobile phone (5), the charging terminal (7) has a cap member for protecting the external connection terminal (6).
They are provided on both sides of (67) and are exposed on the surface of the casing (4) of the mobile phone (5) even when the cap member (67) is attached. Therefore, a hands-free device for the purpose of charging only
When using (1), the mobile phone (5) may be attached to the second mobile phone holding portion (3).

The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or limiting the scope. The configuration of each part of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made within the technical scope described in the claims.

[Brief description of drawings]

1 is a perspective view of a hands-free device according to the present invention.

FIG. 2 is a block diagram showing an outline of a mobile phone.

FIG. 3 is a block diagram showing an outline of a hands-free device according to the present invention.

FIG. 4 is a perspective view showing a bottom portion of a mobile phone.

[Explanation of symbols]

(1) Hands-free device (2) First mobile phone holder (3) Second mobile phone holder (5) Mobile phone (6) External connection terminal (7) Charging terminal (13) On-off switch (14) LED (21) Connector (31) Power supply terminal (59) Battery

Claims (2)

[Claims] 1. A first mobile phone holding portion (2) having a connector (21) for coupling with an external connection terminal (6) of the mobile phone (5) and an external connection terminal (6) are provided separately. The pair of charging terminals (7) of the mobile phone (5) come into contact with the pair of power supply terminals (3).
When the mobile phone (5) is attached to the second mobile phone holding unit (3) having the first mobile phone holding unit (2) and the first mobile phone holding unit (2), hands-free communication is performed using the mobile phone (5). A hands-free device comprising means for performing the above, and means for supplying power to the battery (59) of the mounted mobile phone (5) through the external connection terminal (6) or the charging terminal (7). 2. A first mobile phone comprising an on / off switch (13) and a display means (14) for displaying the on / off state of the on / off switch (13), when the on / off switch (13) is in the on state. The mobile phone (5) attached to the holder (2) receives a call signal, and commands the mobile phone (5) to shift to a call state via the external connection terminal (6). Hands-free device for mobile phones.