JP2000224286A - Portable speaker phone kit for portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously speak with many people regardless of the place by integrating a removable main body portable fixture, a portable telephone connecting cord, a power supplying part, etc., to a speaker for speaking and a microphone for speaking for a portable telephone set to constitute as a kit so a to carry the portable telephone set and the miniaturized speaker phone kit in pair. SOLUTION: The main body portable tool 109 and the power supplying part 110 are prepared for the speakerphone kit main body 101 to always allow to carry with a user. At the time of using, the portable telephone connecting cord 106 housed in a housing part 107 provided at the main body 101 is connected with the speaker microphone interface of the portable telephone set and a power switch 108 is turned on in order to speak. In the case of using hands-free, the main body 101 is fixed to a proper place to speak and in the case of speaking with many people, one person holds the speaker phone kit or the main body is fixed hands-free to speak in the state of surrounding the main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speakerphone kit externally connected to a portable telephone.

[0002]

2. Description of the Related Art Conventional speakerphone kits for portable telephones are generally intended for hands-free use in vehicles.
Even if it is not for vehicle use, it is used in a fixed state.

[0003]

A speakerphone kit for a mobile phone which is commercially available for use in a vehicle is large in size and has a power source for use in a vehicle. As a result, it was not possible to make timely simultaneous calls with many people, which is an advantage of the speakerphone.

[0004]

SUMMARY OF THE INVENTION The present invention provides a detachable main body portable device, a portable telephone connection cord, a power supply unit, a storage unit for accommodating the portable telephone connection cord and the power supply unit, and a power switch. A speakerphone kit for a mobile phone, comprising: a call speaker; a speaker volume control unit; a call microphone; and a call microphone volume control unit.

[0005]

FIG. 1 is an external view for explaining a first embodiment of the present invention, in which (a) is a front view and (b) is a back view.

In FIG. 1, reference numeral 101 denotes a speakerphone kit main body, 102 denotes a call speaker, 103 denotes a call microphone, 104 denotes a speaker volume control unit, 105 denotes a microphone volume control unit, 106 denotes a mobile phone connection cord, and 107 denotes a housing. Unit, 108 is a power switch, 109 is a main body portable device, 1
Reference numeral 10 denotes a power supply unit.

FIG. 2 is a configuration diagram showing a first embodiment of the present invention.

In FIG. 1 and FIG. 2, a speakerphone circuit main body 101 is connected to a portable telephone 201 by a portable telephone connection cord 106. The speaker signal 202 output from the mobile phone 201 is connected to a speaker input signal adjustment unit 203, and the output is an echo canceller circuit 204
Speaker input. Echo canceller circuit 2
The speaker output of 04 is input to the speaker output adjustment unit 205, and the output is connected to the speaker 102 for telephone conversation.

The output of the telephone microphone 103 is connected to a microphone input signal adjusting unit 207, and the output is connected to the microphone input of the echo canceller circuit 204. The microphone output of the echo canceller circuit 204 is output from the microphone output signal adjustment unit 2.
08, the output becomes a microphone input signal of the mobile phone 201, and is connected to the mobile phone 201 by the mobile phone connection code 106.

The power supply 110 is connected to each power supply in the speakerphone kit main body 101.

Next, the operation of the first embodiment will be described with reference to FIGS.

The speaker phone kit main body 101 is provided with a main body portable device 109 such as a key ring or the like and a power supply unit 110, which can be carried around at all times. The volume can be adjusted by the volume controller 104 and the microphone volume controller 105.

When used, the speakerphone kit body 101
Is connected to the speaker / microphone interface of the mobile phone 201 and the power switch 108 is turned on, so that a call can be made. I do.

For hands-free use, the speakerphone kit main body 101 is fixed at an appropriate place to make a call. For multi-person calls, one person has the speakerphone kit or the main body is fixed similarly to the handsfree. Make a call while surrounding the main unit.

A speaker signal output from the mobile phone 201 is connected to the speakerphone kit main body 101 by a mobile phone connection cord 106 and input as a speaker signal 202. The speaker signal 202 is adjusted to an appropriate level by the speaker input signal adjustment unit 203 and is input to the speaker-side input of the echo canceller circuit 204. The echo canceller circuit 204 is a circuit for preventing echo and howling caused by the wraparound signal 206 between the speaker and the microphone.

The output of the echo canceller circuit 204 on the speaker side is input to the speaker output adjusting unit 205, becomes a speaker output signal, is input to the call speaker 102, and is output from the speaker. The microphone signal input from the telephone microphone 103 is input to the microphone input signal adjusting unit 207.
Thus, the input level is adjusted to an optimum level for the echo canceller circuit 204 and input to the microphone-side input.

The microphone signal output from the microphone side output of the echo canceller circuit 204 is adjusted to the input level of the mobile phone 201 by the microphone output signal adjusting unit 208,
A microphone signal 209 is input to the mobile phone 201 by the mobile phone connection code 106.

As described above, even in an existing mobile phone having no speakerphone function, by carrying the speakerphone kit together with the mobile phone, it is possible to have a simultaneous conversation with many people regardless of the place.

Further, by miniaturizing the speakerphone kit and providing a portable device, it becomes possible to carry around with a mobile phone as a pair.

FIGS. 3A and 3B are external views for explaining a second embodiment of the present invention. FIG. 3A is a front view, and FIG. 3B is a rear view. Hereinafter, components common to the drawings are denoted by the same reference numerals.

The second embodiment has the same basic configuration and operation as the first embodiment, except that the shape of the speakerphone kit body 301 is processed into a character or the like.
FIG. 3 shows an example.

The shape of the speakerphone kit body 301 is
By processing popular characters and characteristic shapes, fashionability and advertising effects as a mascot are created, and effects other than speakerphone kits can be expected.

FIGS. 4A and 4B are external views for explaining a third embodiment of the present invention, wherein FIG. 4A is a front view and FIG. 4B is a rear view.

The third embodiment is basically the same as the configuration of the second embodiment shown in FIG. 3, except that the power storage unit 401 stores only the power supply unit 110 and the mobile phone connection cord 402 Separate payment, storage section 40 for mobile phone connection cord
3 is added.

A storage section 4 for a mobile phone connection cord shown in FIG.
Numeral 03 shows an example of this, which is of a winding type. Reference numeral 404 denotes a state when the connection cord is stored, and 405 denotes a state when the connection cord is extended.

The other points are the same as in the second embodiment.

As described above, in the third embodiment, storage of the portable telephone connection cord 402 is simplified, and improvement in use efficiency of the speakerphone kit can be expected.

FIGS. 5A and 5B illustrate a fourth embodiment of the present invention. FIG. 5A shows an example of use on a desk, and FIG. 5B shows an example of use in an automobile.

The fourth embodiment is different from the embodiment shown in FIG. 1 in that speakerphone kit supports 501 and 503 are connected, and is installed when a hands-free call is made.

The speakerphone kit support 501 is used for a desk or the like.
Numeral 03 denotes a form used in a car, and 502 denotes a sun visor in the car.

The configuration of the hands-free kit body is the same as that of the first embodiment.

Next, the operation of the fourth embodiment will be described.

A speakerphone kit support 501 shown in FIG. 5A is an example of a means for installing a speakerphone kit main body when performing a hands-free call at a desk or the like.

The speakerphone kit support 503 shown in FIG. 5B is an example of a means for installing the speakerphone kit main body when performing a hands-free call in a car.

The method of using the speakerphone kit body is the first
This is the same as the embodiment.

As described above, by using the speakerphone kit supports 501 and 503, the call position can be fixed, and a good hands-free call can be expected.

FIGS. 6A and 6B are external views for explaining a fifth embodiment of the present invention, wherein FIG. 6A is a front view and FIG. 6B is a rear view.

The fifth embodiment is basically the same as the first embodiment shown in FIG. 1, except that the mobile phone connection cord 601 can be separated from the main body and connected to the mobile phone connection terminal 602. Make a connection with a mobile phone.

When the speakerphone is used, the mobile phone connection cord 601 is taken out of the storage unit 107, connected to the mobile phone connection terminal 602, and further connected to the mobile phone, thereby connecting the speakerphone kit main body 101 to the mobile phone. .

The operation is the same as in the first embodiment.

As described above, the speakerphone kit body 1
01 and the mobile phone cord 601 so that they can be connected by the mobile phone connection terminal 602, external connection can be made without being affected by the length of the attached mobile phone connection cord 601 and the distance from the main body can be reduced. It can be used separately.

Therefore, it is useful for a hands-free call as in the fourth embodiment shown in FIG.

FIGS. 7A and 7B are external views for explaining a sixth embodiment of the present invention, wherein FIG. 7A is a front view and FIG. 7B is a rear view.

The sixth embodiment is basically the same as the first embodiment shown in FIG. 1, except that an external power input terminal 701 is provided and an external power input
3 can be connected.

The other points are the same as in the first embodiment.

When the external power input cord 702 is inserted into the external power input terminal 701, the external power 703 is supplied into the speakerphone kit. When the power supply unit 110 is of a rechargeable type, a charging operation is performed.

As described above, by providing the external power input terminal 701, a long-time call can be made.

Further, by making the power supply unit 110 rechargeable, a charging operation becomes possible, which is economical.

FIG. 8 is a block diagram showing a seventh embodiment of the present invention.

The appearance of the seventh embodiment is not different from that of the first embodiment shown in FIG.
Are for digital signal connection.

FIG. 8 is basically the same as the configuration diagram of the first embodiment of FIG. 2, except that the connection with the portable telephone is a digital signal, and the speaker input signal adjusting section 20 of FIG.
3. The microphone output signal adjustment unit 208 is eliminated. In FIG. 8, the speaker signal 802 and the microphone signal 803 are directly connected to the digital input / output of the echo canceller circuit 804. Also, a synchronization signal 8 for transferring digital data.
05, Synchronous clock 806 is mobile phone connection code 807
Is connected from the mobile phone 801.

The other points are the same as those of the first embodiment.

Next, the operation of the seventh embodiment will be described.

The digital speaker signal 802 output from the mobile phone 801 is connected to the speakerphone kit main body 101 together with the synchronization signal 805 and the synchronization clock 806 by the mobile phone connection code 807, and the speaker signal 8
02 is input in synchronization with the synchronization signal 805 and the synchronization clock 806. The speaker signal 802 is input to a digital speaker input of the echo canceller circuit 804.

The echo canceller circuit 804 includes a speaker,
This is a circuit for preventing echo and howling caused by the wraparound signal 206 between microphones. The analog speaker output of the echo canceller circuit 804 is input to the speaker output adjustment unit 205, becomes a speaker output signal, is input to the call speaker 102, and is output from the speaker.

The microphone signal input from the telephone microphone 103 is adjusted by the microphone input adjustment unit 207 to an optimum input level for the echo canceller 804, and is input to the analog microphone input.

The digital signal output from the digital microphone output of the echo canceller circuit 804 in synchronization with the synchronization signal 805 and the synchronization clock 806 is the microphone signal 80
3 and mobile phone 8 by mobile phone connection code 807
01 is input.

As described above, by digitizing the connection means of the speakerphone kit, the speakerphone kit can be used in a portable telephone having only a digital connection interface means.

FIGS. 9A and 9B are external views for explaining an eighth embodiment of the present invention, wherein FIG. 9A is a front view and FIG. 9B is a rear view.

The configuration of the eighth embodiment is basically the same as that of the first embodiment, except that a telephone microphone 901 is separated from the main body by a microphone mounting portion 902. FIG. 9 shows an example.

As described above, by moving the microphone away from the main body, the echo signal transmitted from the main body due to the vibration of the speaker and input to the microphone can be reduced.

As described above, in the first to eighth embodiments, an example of using an echo canceller has been described as a means for removing echo and howling. However, a half duplex means such as a voice switch and an echo suppressor may be used. Is also possible.

In the first to sixth embodiments, each function is implemented separately, but it is also possible to use the embodiments in combination as needed.

[0064]

As described above, according to the present invention, even in an existing mobile phone without a speakerphone, it is possible to carry a miniature speakerphone kit as a pair, and to have simultaneous conversation with many people regardless of the place. Becomes

[Brief description of the drawings]

FIG. 1 is an external view illustrating a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a first embodiment of the present invention.

FIG. 3 is an external view illustrating a second embodiment of the present invention.

FIG. 4 is an external view illustrating a third embodiment of the present invention.

FIG. 5 is a diagram illustrating a fourth embodiment of the present invention.

FIG. 6 is an external view illustrating a fifth embodiment of the present invention.

FIG. 7 is an external view illustrating a sixth embodiment of the present invention.

FIG. 8 is a configuration diagram showing a seventh embodiment of the present invention.

FIG. 9 is an external view illustrating an eighth embodiment of the present invention.

[Explanation of symbols]

101, 301 Speaker phone kit body 102 Call speaker 103, 901 Call microphone 104 Speaker volume control unit 105 Microphone volume control unit 106, 402, 601, 807 Cell phone connection cord 107 Storage unit 108 Power switch 109 Body portable tool 110 Power supply Supply unit 201, 801 Mobile phone 202, 802 Speaker signal 203 Speaker input signal adjustment unit 204, 804 Echo canceller circuit 205 Speaker output adjustment unit 206 Loop-in signal 207 Microphone input signal adjustment unit 208 Microphone output signal adjustment unit 209, 803 Microphone signal 401 Power storage unit 403 Cell phone connection cord storage unit 404 Connection cord storage 405 Connection cord extension 501, 503 Speaker phone kit support 502 Sun visor 602 Mobile phone Connection terminals 701 external power input terminal 702 External power input cord 703 external power supply 805 synchronizing signal 806 synchronized clock 902 microphone mounting portion

Claims (8)

[Claims] 1. A speakerphone kit for a mobile phone, comprising: a speakerphone kit main body; a removable mobile device of the main body; a mobile phone connection cord; a power supply unit; the mobile phone connection cord and the power supply unit. , A power switch, a call speaker, a speaker volume control unit, a call microphone, and a call microphone volume control unit. kit. 2. The portable speakerphone kit for a mobile phone according to claim 1, wherein the shape of the main body is processed into various characters. 3. A power storage unit for storing the power supply unit and a rewindable storage unit for storing the mobile phone connection cord are separately provided in the main body. A portable speakerphone kit for a mobile phone according to claim 2. 4. The portable speakerphone kit for a mobile phone according to claim 1, wherein a speakerphone kit support is provided as a means for installing the main body when making a handsfree call. 5. The portable speakerphone kit for a mobile phone according to claim 1, wherein a terminal for connecting the mobile phone connection cord is provided on the main body, and the mobile phone connection cord is separated from the main body. . 6. An external power input terminal is provided on the main body,
2. A portable speakerphone kit for a mobile phone according to claim 1, wherein an external power supply can be connected by an external power supply input cord. 7. The portable speakerphone kit for a portable telephone according to claim 1, further comprising a portable telephone connection means corresponding to a digital signal. 8. The portable speakerphone kit for a mobile phone according to claim 1, wherein a microphone mounting portion is provided at a position separated from the main body, and the telephone microphone is mounted on the microphone mounting portion.