JPH1159283A - Car mounted hand-free device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform an operation of a dispatch or a reception without an inattentive driving and to prevent a traffic accident caused by an inattentive driving by increasing safety. SOLUTION: In a car-mounted hand-free device, a sun visor operation panel 10, by which a cellular phone 1 is operated, is newly installed on a sun visor 11. The sun visor operation panel 10 is equipped with an operation key part 10a, a letter-and-figure display part LCD 10b, an infrared-ray LED emitting-and- receiving element part 10c, and a hand-free microphone 10d, and the equal operations to a key operation, a LCD display and a call on the cellular phone 1 can be performed thereby, by dispatching to or receiving from the infrared-ray LED emitting-and-receiving element 9a for a transmission in the light space of a battery charger 2 mounted on a hand-free car.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle hands-free device such as a portable telephone including a PHS, and more particularly, to an in-vehicle hands-free device of a portable telephone having improved driving safety.

[0002]

2. Description of the Related Art Conventionally, in a portable telephone, when an incoming signal is received from a base station, a ringing tone of the device sounds and a user is notified of the reception.

[0003] In addition, an in-vehicle hands-free kit is generally provided as an option for a mobile phone. Upon receiving a reception signal from the base station, a ringing tone sounds from a speaker mounted on the vehicle to notify the user of the reception. The user presses the receiving button of the device to enter a talking state. At this time, the user can use the on-vehicle speaker and the on-vehicle microphone to talk with the other party without directly holding a mobile phone or the like.

[0004] As a conventional hands-free device of this kind, there is, for example, one shown in FIG.

FIG. 6 is a view showing a hands-free device mounted on a vehicle. In this figure, reference numeral 1 denotes a portable telephone, 2 denotes a hands-free vehicle-mounted charger, 3 denotes a speaker installed in the hands-free vehicle-mounted charger, and 4 denotes a hands-free device. A free microphone, 5 is a cigarette lighter charger, 6 is an antenna connector connected to a hands-free in-vehicle charger, 7 is an in-vehicle antenna, and 8 is a connector with a coil cord connected to a coaxial / signal interface connector of a mobile phone. is there.

When a mobile phone is used in a car, the above-mentioned hands-free device is installed in the car in consideration of safety, and the driver uses the hands-free device to carry the mobile phone except when making or receiving a call. I was able to talk on the phone in the normal driving position without touching the phone.

[0007]

However, in such a conventional hands-free device for a portable telephone, the driver must operate the buttons of the portable telephone when making and receiving a call. Hands-free in-vehicle chargers on which mobile phones are placed are usually installed on console boxes, and the driver cannot operate the mobile phone without looking aside unless the vehicle is stopped. For this reason, safety is not perfect, and if such an operation is performed during driving, a serious problem will be caused in safe driving.

The present invention provides an in-vehicle hands-free device capable of easily performing transmission / reception operations without inattentive driving, enhancing safety and preventing a traffic accident due to inattentive driving. The purpose is to:

[0009]

An in-vehicle hands-free device according to the present invention is a in-vehicle hands-free device in which a mobile phone is mounted on an in-vehicle charger so that a user can talk with a partner without having a mobile phone. An operation unit that operates the mobile phone,
It is characterized by being provided in a place that does not hinder driving.

The operation section may be a sun visor mounting operation section mounted on a sun visor, and the operation section may be a dashboard installation operation section installed on a dashboard.

The operation unit may be an operation unit having the same function as the operation unit provided in the mobile phone, and the operation unit includes a display unit for operating characters and numerals. The operation unit may further include at least an operation key, a character / number display unit, a hands-free microphone, and a control circuit for operation.

The operation unit may include a solar battery and a charging circuit for charging the secondary battery with power from the solar battery. The operation unit may include a hands-free microphone, And a voice recognition circuit for recognizing the voice, and performing an input operation by recognizing voice input through the hands-free microphone by the voice recognition circuit.

The above-mentioned hands-free device is provided with an on-board charger for mounting a mobile phone and an optical transmitting / receiving element on an operation unit.
Signals may be transmitted and received between the onboard charger and the operation unit by optical communication.

The above-mentioned hands-free device is provided with a radio wave transmitting / receiving element in a vehicle-mounted charger on which a mobile phone is mounted and an operation unit, and transmits and receives signals between the vehicle-mounted charger and the operation unit by wireless communication. There may be.

In the above-mentioned hands-free device, the portable telephone may be a portable terminal capable of transmitting and receiving a radio signal and carrying a telephone call.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The hands-free device mounted on a vehicle according to the present invention can be applied to a digital wireless portable terminal device such as a portable telephone.

FIG. 1 is a diagram showing the configuration of an in-vehicle hands-free device according to a first embodiment of the present invention, which is an example applied to an automatic paging in-vehicle hands-free device in a portable telephone. In the description of the in-vehicle hands-free device according to the present embodiment, the same components as those in the in-vehicle hands-free device shown in FIG. 6 are denoted by the same reference numerals.

In FIG. 1, 1 is a mobile phone, 2 is a hands-free on-board charger, 3 is a speaker installed on the hands-free on-board charger, 5 is a cigarette lighter charger, and 6 is connected to a hands-free on-board charger. Antenna connector, 7 is a vehicle-mounted antenna, 8 is a connector with a coil cord connected to the coaxial / signal interface connector of the mobile phone, 9 is a universal handle installed on the hands-free vehicle-mounted charger 2, and 10 is a sun visor. Operation panel (sun visor operation part), 10a is operation key part, 10b is character / number display LCD, 10c is infrared LED for optical space transmission
A light-emitting / light-receiving sensor element portion, 10d is a hands-free microphone, and 11 is a sun visor.

The universal handle 9 is installed on the hands-free in-vehicle charger 2 and has a tip at the tip thereof for transmitting infrared light for optical space transmission.
An ED light emitting / receiving sensor element 9a is provided. This free handle 9 has a light emitting / receiving sensor element 9
The handle portion to which the a is attached is configured to be able to freely change its direction. After attaching the sun visor operation panel 10 to the sun visor 11, the infrared LED light emitting / receiving sensor element portion 10c of the sun visor operation panel 10 Can be easily opposed to each other.

The sun visor operation panel 10 is mounted on the sun visor 11 and has a hands-free on-board charger 2.
Infrared LED light emitting / receiving sensor element 9a for optical space transmission
Key operation on the mobile phone, LC
It is possible to perform operations equivalent to D display and telephone conversation.

As described above, in the vehicle hands-free device according to the first embodiment, the sun visor operation panel 10 for operating the mobile phone 1 is newly installed on the sun visor 11,
The mobile phone 1 can be operated by the sun visor operation panel 10.

Hereinafter, the operation of the in-vehicle hands-free device configured as described above will be described.

When the connector 8 with the coil cord is connected to the portable telephone 1 and the portable telephone 1 is inserted into the hands-free in-vehicle charger 2, the sensor operates and the power of the hands-free in-vehicle charger 2 is turned on. The hands-free in-vehicle charger 2 is supplied with power from a car battery by connecting the cigar lighter charger 5.

The hands-free in-vehicle charger 2 is provided with a hands-free circuit, a speaker, a sound reproducing circuit, an LED light receiving control circuit, a CPU and the like, and is attached to a handle 9 which can be freely changed in direction. Optical space transmission is performed by the LED light emitting / receiving sensor element 9a and the LED light emitting / receiving sensor element mounted on the infrared LED light emitting / receiving sensor element 10c for optical space transmission, and the transmission and reception of electric signals are performed.

The sun visor operation panel 10 includes an operation k
key unit 10a, which can perform operations equivalent to key operations on a mobile phone, and a character / number display LCD
The display equivalent to that of the LCD on the mobile phone 1 can be performed at 10b. The driver can have hands-free conversation with the hands-free microphone 10d and the speaker 3. Power is supplied to the sun visor operation panel 10 from a vehicle battery by a cable (not shown).

FIG. 2 is a view showing the structure of the sun visor operation panel 10, and is a side view as viewed in the direction of arrow A in FIG.

In FIG. 2, reference numeral 10e denotes a clip spring, 10 built in the hinge portion of the sun visor operation panel 10.
f is a projection provided on both sides of the panel. When both sides of the sun visor operation panel 10 are closed by a predetermined amount, the sun visor 11 can be installed so as to sandwich the sun visor 11 by urging of the clip spring 10e. Spring 1
Since it can be opened to the position shown by the dashed line in FIG. 2 by urging in the opposite direction of 0e, the structure is such that it can be easily attached to and detached from the sun visor 11.

As described above, in the hands-free device mounted on the vehicle according to the first embodiment, the sun visor operation panel 10 for operating the mobile phone 1 is newly installed on the sun visor 11, and the sun visor operation panel 10 Operation key section 10a, character / number display LCD 10b, infrared LED light emitting / receiving sensor element section 10c, hands-free microphone 10
d for transmitting / receiving data to / from the infrared LED light emitting / receiving sensor element 9a for optical space transmission of the hands-free in-vehicle charger 2 to perform operations equivalent to key operation, LCD display, and telephone conversation on the mobile phone 1. This configuration allows the driver to easily perform transmission / reception operations without inattentive driving, thereby preventing a traffic accident due to inattentive driving.

The transmission and reception of electric signals between the sun visor operation panel 10 and the portable telephone 1 are performed by infrared LEDs.
Since the light-emitting / light-receiving sensor elements 10c and 9a perform optical space transmission, there is no need to connect cables or the like.
It is possible to prevent the driver from accidentally catching a cable or the like while driving, and it is easy to install and excellent in appearance.

An in-vehicle hands-free device according to a second embodiment of the present invention operates a sun visor operation panel with a solar cell. The overall configuration of the in-vehicle hands-free device according to the present embodiment is the same as that of FIG.

FIG. 3 is a view showing the structure of the sun visor operation panel according to the present embodiment, and is a rear view as viewed in the direction of arrow B in FIG.

In FIG. 3, the sun visor operation panel has a solar cell 10g, a charging circuit 10h, and a secondary battery 10i provided on the back surface of the sun visor key operation panel.

In the above configuration, the sun visor operation panel is supplied with power by the solar cell 10g in the daytime,
At night, power is supplied from the secondary battery 10i charged by the charging circuit 10h by receiving power from the solar cell 10g in the daytime.

Therefore, the sun visor operation panel of the present embodiment does not need to be supplied with power from the battery of the car, has no cable connection, does not require any construction, and has an excellent appearance.

An in-vehicle hands-free device according to a third embodiment of the present invention has a voice recognition circuit provided on a sun visor operation panel. The overall configuration of the in-vehicle hands-free device according to the present embodiment is the same as that of FIG. In the in-vehicle hands-free device according to the present embodiment, a voice recognition circuit is installed in the sun visor operation panel unit 10. As the speech recognition circuit, a speech recognition circuit applied to a conventionally known speech recognition system can be applied.

In the above configuration, voice recognition is performed by the voice recognition circuit through the hands-free microphone 10d, and operation input by voice is performed.

Therefore, the key of the sun visor operating section
The operation can be input by voice without performing the operation, so that the safety can be further improved.

FIG. 4 is a diagram showing a configuration of a hands-free device mounted on a vehicle according to a fourth embodiment of the present invention, and FIG. 5 is a perspective view as viewed in the direction of arrow C in FIG. In the description of the in-vehicle hands-free device according to the present embodiment, the same components as those in the in-vehicle hands-free device shown in FIG.

In FIG. 4, reference numeral 12 denotes a dashboard installation operation unit. The dashboard installation operation unit 12 is mounted on the dashboard, and emits and receives infrared LED for optical space transmission of the handsfree onboard charger 2. The key operation on the mobile phone is performed by transmitting and receiving to and from the sensor element 9a,
An operation equivalent to an LCD display and a telephone call can be performed.

The dashboard setting operation section 12 includes an operation key section 12a, a character / number display LCD 12b, an infrared LED light emitting / receiving element section 12c for optical space transmission, and a hands-free microphone section 12d. As shown in the figure, a solar cell 12e, a charging circuit 12f, and a secondary battery 12g are provided.

As described above, in the hands-free device mounted on the vehicle according to the fourth embodiment, the dashboard setting operation unit 12 is mounted on the dashboard, and the mobile phone 1 can be operated by the dashboard setting operation unit 12. With such a configuration, the driver can easily perform transmission and reception operations without performing inattentive driving, and can prevent a traffic accident due to inattentive driving.

Further, similarly to the second embodiment, the power of the solar cell 12e is charged by the charging circuit 12f and stored in the secondary battery 12g, so that it is necessary to receive the power supply from the car battery. There is no cable connection, construction is unnecessary, and the appearance is excellent.

In particular, in the present embodiment, the operation section is of a dashboard installation type so as to be able to meet a wide range of customer needs. For example, the operation unit may be configured so that a dashboard installation type and a sun visor installation type can be selected according to customer preference.

Therefore, the in-vehicle hands-free device having such excellent features can transmit and receive a radio signal,
If the present invention is applied to a wireless portable terminal device such as a mobile phone including S and an in-vehicle mobile terminal, inattentive driving during traveling can be prevented, and safety can be further improved.

Note that the in-vehicle hands-free device according to each of the above embodiments can be applied to the above-described wireless calling device such as a mobile phone, but is not limited to this, and is not limited to this. It goes without saying that the present invention can be applied to all devices as long as it is a terminal.

Further, in each of the above-described embodiments, an example in which the operation unit for operating the mobile phone is installed on the sun visor or the dashboard is shown. It may be an embodiment. Further, the operation section only needs to be able to operate at least a part of the functions of the mobile phone, and the size, shape, function, and the like can be variously modified.

In each of the above embodiments, the infrared LED light emitting / receiving sensor element for spatial light transmission is used. However, the light emitting / receiving sensor element may be replaced with a radio wave transmitting / receiving element. The effect of can be obtained.

Further, it goes without saying that the type and shape, the wired / wireless system, the installation method, and the like of the in-vehicle hands-free device and the device constituting the operation unit are not limited to the above-described embodiments.

[0049]

In the in-vehicle hands-free device according to the present invention, the operation unit for operating the mobile phone is provided in a place where the driving is not hindered, so that the transmission and reception operations can be easily performed without looking aside. It is possible to improve safety and prevent traffic accidents caused by inattentive driving.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an in-vehicle hands-free device according to a first embodiment to which the present invention is applied.

FIG. 2 is a view showing the structure of a sun visor operation panel of the above-mentioned hands-free device mounted on a vehicle.

FIG. 3 is a diagram showing a structure of a sun visor operation panel of a vehicle-mounted hands-free device according to a second embodiment to which the present invention is applied.

FIG. 4 is a diagram showing a configuration of an in-vehicle hands-free device according to a fourth embodiment to which the present invention is applied.

FIG. 5 is a view showing the structure of a dashboard installation operation unit of the above-mentioned hands-free device mounted on a vehicle.

FIG. 6 is a diagram showing a configuration of a conventional in-vehicle hands-free device.

[Explanation of symbols]

1 mobile phone, 2 hands-free in-vehicle charger, 3 speakers, 5 cigarette lighter charger, 6 antenna connector, 7 in-vehicle antenna, 8 connector with coil cord, 9 free handle, 10 sun visor operation panel (sun visor operation unit), 10a, 12a Operation key
Part, 10b, 12b Character / number display LCD, 10c,
12c Infrared LED light emitting / receiving sensor element for space optical transmission, 10d, 12d Hands-free microphone, 10e
Clip spring, 10g, 12e solar cell, 10h, 12
f Charging circuit, 10i, 12g rechargeable battery, 11 sun visor, 12 dashboard operation section

Claims (11)

[Claims] 1. An in-vehicle hands-free device in which a mobile phone is mounted on a vehicle-mounted charger so that a user can talk with another party without directly holding the mobile phone, wherein an operation unit for operating the mobile phone does not hinder driving. An in-vehicle hands-free device provided at a location. 2. The in-vehicle hands-free device according to claim 1, wherein the operation unit is a sun visor mounting operation unit mounted on a sun visor. 3. The in-vehicle hands-free device according to claim 1, wherein the operation unit is a dashboard installation operation unit installed on a dashboard. 4. The in-vehicle hands-free device according to claim 1, wherein the operation unit is an operation unit having a function equivalent to an operation unit provided in a mobile phone. 5. The in-vehicle hands-free device according to claim 1, wherein the operation unit includes a display unit for displaying characters and numerals for operation. 6. The operation unit according to claim 1, wherein the operation unit includes at least an operation key, a character / number display unit, a hands-free microphone, and a control circuit for operation.
Or the in-vehicle hands-free device according to any one of the above items 5. 7. The operation unit according to claim 1, further comprising: a solar cell; and a charging circuit for charging the secondary battery with electric power of the solar cell. The hands-free device according to any one of claims 1 to 4. 8. The operation unit includes: a hands-free microphone;
3. A speech recognition circuit for recognizing speech, wherein the speech recognition circuit recognizes speech input through the hands-free microphone and performs an input operation.
8. The in-vehicle hands-free device according to any one of 3, 4, 5, 6, and 7. 9. The in-vehicle hands-free device according to claim 1, wherein an in-vehicle charger for mounting a mobile phone and an optical transmission / reception element in the operation unit are provided. An in-vehicle hands-free device for transmitting and receiving signals to and from the operation unit by optical communication. 10. The in-vehicle hands-free device according to claim 1, wherein an in-vehicle charger for mounting a mobile phone and a radio wave transmitting / receiving element on the operation unit are provided. An in-vehicle hands-free device for transmitting and receiving signals between a device and the operation unit by wireless communication. 11. The in-vehicle hands-free device according to claim 1, wherein the mobile phone is a mobile terminal capable of transmitting / receiving a radio signal and carrying and talking. An in-vehicle hands-free device characterized by the following.