DE10043918A1 - Hands-free mobile telephone system for vehicle, disposes microphone and loudspeaker on opposite sides of seat headrest - Google Patents

Abstract

Loudspeaker (3) and microphone (4) are mounted on opposite sides of the headrest (2) which is supported on top of the backrest (1).

Description

The present invention relates to driving witness telephone device and in particular on a vehicle-free speaking telephone device, being a telephone in a vehicle is used while both hands are free.

In some conventional vehicle handsfree telephones are a speaker around a headrest and a microphone on a sun visor arranged to a to enable hands-free telephone calls to be carried out (JP-A-1-247237). Because the speaker is around the headrest is provided around, the volume of the speaker can be reduced, whereby a self-tones or an acu tical feedback (howling) is reduced.

However, since the speaker and microphone are each in the headrest and the sun visor are provided, be there is a clear gap between them. Because of this Ab and the location, it is therefore difficult to turn on the device bring and wiring between the speaker and the microphone. Because the driver for this type of device must wear equipment, he is often disturbed.

The object of the present invention is the above to overcome written. The task is solved by the features of the independent independent patent Expectations.

In view of the disadvantages described above, the present invention provides a vehicle speakerphone with a speaker ( 3 ) which is arranged on the right or left side of a headrest ( 2 ) which is mounted on a backrest portion ( 1 ) of a vehicle seat is. The microphone ( 4 ) is arranged on the other section thereof.

Accordingly, the volume of a speaker ( 3 ) can be reduced by placing the speaker ( 3 ) on the other side of a headrest ( 2 ), thereby reducing the self-tones. Furthermore, an acoustic coupling between the loudspeaker ( 3 ) and the microphone ( 4 ) can be reduced by arranging the microphone ( 4 ) on the other side of the headrest ( 2 ), thereby reducing the self-tones. Furthermore, the loudspeaker ( 3 ) and the microphone ( 4 ) are arranged on the upper part of the backrest section ( 1 ), but not placed on the driver's head, as a result of which the driver is not disturbed.

According to another aspect of the invention, the loudspeaker ( 3 ) and the microphone ( 4 ) can be arranged on the upper surface of the backrest section ( 1 ). The loudspeaker ( 3 ) and the microphone ( 4 ) do not protrude further than the driver's seat side surface of the backrest section ( 1 ). According to another aspect of the invention, the loudspeaker ( 3 ) and the microphone ( 4 ) are contained in a headrest ( 2 ).

According to another aspect, a base or a base ( 5 ) on the upper surface of the backrest section ( 1 ) of a vehicle seat, a loudspeaker ( 3 ) attached to the base ( 5 ) on the right or left side of the headrest ( 2 ) ) and a microphone ( 4 ) attached to the other side of the base ( 5 ).

The vehicle hands-free telephone device can be removably attached to a vehicle seat. In particular, the struts with (2 a, 2 b) (2) held socket (5) may be disposed on the upper surface of the backrest portion (1) of the headrest. In particular, the base ( 5 ) can be held with a strut ( 2 a, 2 b) a headrest ( 2 ) by the struts ( 2 a, 2 b) being provided through holes ( 5 a, 5 ) provided in the base ( 5 ). 5 b) step through.

According to another aspect of the invention, wiring ( 6 ) from the speaker ( 3 ) and the microphone ( 4 ) is offset from the central portion of the edge of the base ( 5 ), which is the same direction as the right and left directions of the backrest portion ( 1 ) has. Therefore, in a vehicle with the steering wheel on the right or left side, the wiring 6 can be easily connected to a portable telephone or a vehicle phone.

According to another aspect of the invention, the wiring ( 6 ) from the loudspeaker ( 3 ) and the microphone ( 4 ) through the inside of the base ( 5 ) to the outside, the device can have a pleasant appearance. The base ( 5 ) is also not limited to one piece. The base ( 5 ) can be divided into first and second bases ( 51 , 52 ).

The vehicle speakerphone is not limited to be detachable or releasable. Instead, it can be attached to the upper surface of the backrest portion ( 1 ) of a vehicle seat or to the headrest ( 2 ). If the device is equipped with an amplifier unit ( 10 ) for amplifying received signals, the amplifier unit ( 10 ) is contained in the loudspeaker ( 3 ). The amplifier can be arranged on a mounting plate ( 31 ) of the loudspeaker ( 3 ) or on the base ( 5 ).

If the device is equipped with a wireless transmission or communication device ( 11 ) for receiving and transmitting received signals and transmission signals, a wireless communication device ( 11 ) is present in the loudspeaker ( 3 ) or can be mounted on a mounting plate ( 32 ) of the loudspeaker ( 3 ) can be arranged. The wireless communication device can also be arranged on the base ( 5 ).

Furthermore, the loudspeaker ( 3 ) and the microphone ( 4 ) can be arranged on the base ( 5 ) in order not to protrude further than the driver seat side surface of the backrest section ( 1 ).

If the loudspeaker ( 3 ) and / or the microphone ( 4 ) extend relative to the base ( 5 ), a driver can adjust the direction of reception tones relative to the loudspeaker and / or the direction of the microphone.

The present invention is described in the following Be spelling explained with reference to the drawing.

Fig. 1 is a perspective view showing a vehicle speakerphone of the present invention mounted on a vehicle seat;

Fig. 2 is a plan view showing the vehicle speakerphone of the present invention;

Fig. 3 is a schematic view showing a wiring of the speaker and the microphone connected to a microphone / headphone jack of a portable telephone for a vehicle speakerphone of the present invention;

Fig. 4 shows a perspective view of a vehicle speakerphone of the present invention;

Fig. 5 shows a perspective view of a vehicle speakerphone of the present invention;

Fig. 6 shows a perspective view of a vehicle speakerphone of the present invention;

Fig. 7 shows a perspective view of a vehicle speakerphone of the present invention;

Fig. 8 shows a perspective view of a base 5 , which is attached to the upper surface of a back section, for a vehicle speakerphone of the present invention;

Fig. 9 shows a perspective view of a base attached to a headrest for a vehicle speakerphone of the present invention;

FIG. 10A shows a schematic view of a Verstär kereinheit between the vehicle hands-free telephone set and the portable telephone for a Fahrzeugfreisprechtelefonge advises the present invention;

Fig. 10B is a schematic view in which a wireless communication device (bluetooth unit) is included in the vehicle speakerphone and the portable phone for a vehicle speakerphone of the present invention;

FIG. 11A shows a schematic view of a kereinheit Verstär contained in the vehicle hands-free telephone of the present invention;

FIG. 11B shows a schematic view of an amplifier unit which is included in the vehicle hands-free telephone of the present invention;

FIG. 11C shows a schematic view of an amplifier unit which is included in the vehicle hands-free telephone of the present invention;

Fig. 12A shows a schematic view in which the wireless communication device is included in the vehicle speakerphone of the present invention;

Fig. 12B shows a schematic view in which the wireless communication device is included in the vehicle speakerphone of the present invention;

Fig. 12C shows a schematic view in which the wireless communication device is included in the vehicle speakerphone of the present invention;

Fig. 13A shows a schematic view of a speaker of the present invention; and

FIG. 13B shows a schematic view of a speaker of the present invention.

Fig. 1 shows a vehicle speakerphone of the present invention, which is placed on a vehicle seat. Fig. 2 shows a plan view of the vehicle speakerphone in use. In this embodiment, the vehicle hands-free telephone device is composed of a loudspeaker 3 as a receiver, a microphone 4 as a transmitter and a base 5 for holding or carrying the loudspeaker 3 and the microphone 4 . The speaker 3 is arranged on the right side of a headrest 2 , which is attached to a backrest section 1 , and the microphone 4 is arranged on the left side of the headrest 2 . The microphone 4 is aimed at the driver's mouth and moves circularly in the direction indicated by the arrow of FIG. 1.

Two holes 5 a, 5 b are provided in the base 5 . The with struts 2 a, 2 b of the headrest 2 held base 5 is on the upper surface of the backrest portion 1 egg nes vehicle seat by fastening struts 2 a, 2 b on the backrest portion 1 through two holes 5 a, 5 b is introduced. Furthermore, a wiring 6 of the loudspeaker 3 and the microphone 4 is inserted into the microphone / headphone connection 7 a of a portable telephone 7 and, as shown in FIG. 3, is connected to it when a hands-free telephone conversation is carried out.

In this way, the speaker 3 is arranged on the right side of the headrest 2 in the vicinity of the driver's ear, whereby the tone volume of the speaker 3 and the self-tones are reduced. Further, since the Mi is disposed krofon 4 on the side of the headrest 2 relative to the loudspeakers 3, the acoustic coupling between the speaker 3 and the microphone 4 by the head rest 2 and the driver 8 head is reduced, thereby the howling further reduced becomes. In general, an echo cancellation circuit for canceling an echo is provided in this type of device, which propagates from the loudspeaker to the microphone. However, since acoustic coupling between the speaker 3 and the microphone 4 is reduced in the structure described above, echo canceling circuits are not necessary.

Fig. 4 is a perspective view showing the vehicle speakerphone described above. Speakers 3 and 4 are attached to the base 5 (which is composed of resin) by, for example, fastening screws on the rear surface thereof. Viewed from the upper side, the base 5 is almost rectangular. Wiring 6 of the speaker 3 and the microphone 4 passes through the rear surface of the base 5 and comes out at a central portion of an edge of the base 5 (the edge is in the same direction as the right-left direction of the backrest portion) 1 , to which the base 5 is attached). In general, the portable telephone 7 is arranged between a driver's seat and a seat adjacent thereto. Therefore, in a vehicle with a right steering wheel or a vehicle with a left steering wheel, the wiring 6 can be easily connected to the portable phone 7 because the wiring comes out at the middle portion of the edge of the base 5 .

As shown in FIG. 5, the wiring 6 from the loudspeaker 3 and the microphone 4 can run through the inside of the base 5 . Accordingly, since the wiring 6 does not run ver through the rear surface of the base 5 , the device has a pleasant appearance. Of course, the wiring 6 can also run through the front surface or the rear surface of the base 5 .

Likewise, the base 5 is not limited to a rectangular shape. As shown in Fig. 6, the base 5 can also extend beyond the speaker 3 , the microphone 4 and the holes 5 a, 5 b. As shown in FIG. 7, the base 5 has a first base 51 and a second base 52 . The first base 51 , on which chem the speaker 3 is attached, is held with a strut 2 a of the headrest 2 . The second base 52, on which is mounted the microphone 4, is held by the b at the strut 2 of the headrest. 2 The base 5 is preferably formed from resin or plastic (resin). However, the base 5 can be made of a metal, urethane, textile products, paper, wood, a composite material or the like. If it is formed from the same material as the vehicle seat, the appearance can be improved.

If the inside of the base is formed from a relatively hard material (resin, paper, wood, hard rubber, metal or the like) so that the base 5 can be attached to or securely attached to the backrest portion 1 , and the outside is made of a relatively soft material (textile products, a sponge or foam, urethane, soft rubber, cotton or the like), so that the outside covers the inside, a pleasant feeling (regarding a soft object) mediated. In the embodiment described above, a base 5 , which is held with struts 2 a, 2 b of the headrest 2 , is arranged on the upper surface of a backrest section 1 . However, as shown in Fig. 8, a base 5 is fixed to the upper surface of the backrest portion 1 with a fixing member. Also, as shown in Fig. 9, a base 5 on the headrest 2 can be BEFE Stigt.

In the embodiment described above, the speaker 3 is arranged on the right side of the headrest 2 , and the microphone 4 is arranged on the left side thereof. However, the speaker 3 may be arranged on the left side thereof and the microphone 4 on the right side thereof.

The loudspeaker 3 and the microphone 4 can be arranged around the head of the driver 8 within the area, with an acoustic coupling between the loudspeaker 3 and the microphone 4 being reduced. Therefore, the loudspeaker 3 and the microphone 4 cannot be arranged on the upper surface of the backrest section 1 , but rather on the upper side of each side of a backrest section 1 . Furthermore, the loudspeaker 3 and the microphone 4 can each be contained in a headrest 2 on the right and left sides. That is, the loudspeaker 3 and the microphone 4 can each be arranged on the right and left sides of the headrest 2 on the upper side of the backrest section 1 .

The base 5 may be arranged on the backrest portion 1 of the vehicle seat so as not to protrude further than the driver seat side surface of the backrest portion 1 as shown in FIG. 2. Therefore, the base 5 does not touch the shoulder, neck or head of the driver 8 . Preferably, the base 5 does not protrude from the front of the headrest 2 (the side where the base 5 can touch the driver's head 8 ). Furthermore, the loudspeaker 3 and the microphone 4 do not protrude further than the driver's seat side surface of the headrest 2 . Therefore, the acoustic coupling between the loudspeaker 3 and the microphone 4 by the headrest 2 and the head of the driver 8 is further reduced.

Furthermore, the wiring 6 from an end section of an edge of the base 5 can emerge. Depending on whether the vehicle is a vehicle with a steering on the right or the left side, the base 5 can then be arranged on the upper surface of the backrest portion 1 with the preferred surface of the front and rear surfaces, who the are in the upper direction. Furthermore, the loudspeaker 3 and the microphone 4 can be fastened to the base 5 by clips or holding devices, double-sided adhesive tapes or other adhesives.

Although Fig. 1 strut 2 a, 2 b of the headrest 8 is represented by the present in the base 5 holes 5 a, 5 b to pass through, two (not shown) claw or claws sections which the struts 2 a, b 2 at an edge of the base 5 connect be provided where the strut 2 a, 2 b are located. The claw sections then grip the struts 2 a, 2 b, as a result of which the base 5 is fastened.

Furthermore, as shown in FIG. 10A, the amplifier unit 10 for amplifying received signals can be arranged within the wiring 6 for connecting the vehicle-free telephone or the portable telephone 7 . As shown in FIG. 10B, the wireless communication device (bluetooth unit) 11 can be arranged on an end portion of the wiring 6 of the vehicle speakerphone. Since the wireless communication device 11 communicates with the portable phone 7 within a short range by a wireless transmission. In particular, the radio transmission device 11 receives signals from the portable telephone 7 and sends the signals to the loudspeaker 3 . Conversely, when transmitting, the radio transmission unit 11 receives signals from the microphone 4 and sends the signals to the portable telephone 7 . Preferably, the unit 10 or the radio transmission device 11 is held in the vehicle speakerphone ent.

FIG. 11A to 11C each show an execute form in which the amplifier unit 10 in the hands-free telephone set is included. FIG. 11A shows guide form a stop, in which the amplifier unit is included in the speaker 3 10, Fig. 11B shows an exporting approximate shape, wherein the amplifier unit 10 on the loading attachment plate 31 of the speaker 3 between the speaker 3 and the base 5 11C, and FIG. 11C shows an embodiment in which the amplifier unit 10 is arranged on the base 5 . In these embodiments, the amplifier unit 10 is arranged within the wiring 6 on the way to the speaker cone 3 a of the speaker 3 (corresponding to FIG. 11A).

FIG. 12A to 12C each show an execute form in which the radio communication apparatus 11 in the hands-free telephone set is included. FIG. 12A shows the radio communication apparatus contained in the speaker 3, Fig. 12B on the mounting plate 31 of the speaker 3 arranged wireless communications device, and, Fig. 12C shows the disposed on the base 5. A radio communication apparatus. Since the radio transmission device 11 is kept in the hands-free telephone device, it is not necessary that the wiring 6 is located outside.

Since the amplifier unit 10 or the radio transmission device 11 is powered by a battery or the like, a (not shown) battery is arranged on the base 5 . In this case, a solar battery arranged on the base 5 can be used instead of a normal battery. Furthermore, the above-described embodiments of FIGS. 11A-11C, 12A-12C can be applied to the case in which a base 5 corresponding to FIG. 5 or a base 5 ( 51 , 52 ) corresponding to FIGS. 6, 7 is used, or on embodiments corresponding to Fig. 8, 9, in which the base 5 on the backrest section 1 or on the headrest 2 is attached.

Although the microphone 5 can move in a circle in the above-described embodiments, the loudspeaker 3 can also be formed such that it moves in a circle. In particular, as shown in the rear view of FIG. 13, a vertical groove 3 b is provided on the loudspeaker 3 . A provided on the base 5 projection 5 a is received in the vertical groove 3 b, so that the speaker can move up and down. Furthermore, as in a side view of FIG. 13B, the speaker 3 is arranged on a mounting plate 32 , and the mounting plate 32 can be formed in such a way that it is driven by a drive, a toothed wheel or a gear 12 emotional. In these cases, a mechanism that makes the speaker 3 move in a circle, such as a combination of the mounting plate 32 of the speaker 3 and an actuator 12 , can be used as a mechanism to adjust the speaker 3 up and down.

In this way, the speaker 3 can be adjusted up and down to position the speaker 3 accordingly according to the position of the driver's head (especially the driver's ear). The vehicle handsfree telephone apparatus of the present invention is not limited to connection to the portable telephone 7 , but can be applied to a vehicle telephone.

A vehicle hands-free telephone device has been disclosed above. The vehicle hands-free telephone device, which is connected to a portable telephone or a vehicle telephone, is composed of a loudspeaker ( 3 ) as a receiver, a microphone ( 4 ) as a transmitter and a base ( 5 ). The loudspeaker ( 3 ) is arranged on the right side of a headrest ( 2 ), the microphone ( 4 ) is arranged on the left side of the headrest ( 2 ), and the base ( 5 ) holds the loudspeaker ( 3 ) and the microphone ( 4 ).

Claims (22)

1. Vehicle hands-free telephone device with:
a loudspeaker ( 3 ) which is arranged on a right or left side of a headrest ( 2 ) attached to an upper part of a backrest section ( 1 ) of a vehicle seat; and
a microphone ( 4 ) which is arranged on an opposite side of the upper backrest section ( 1 ) with respect to the loudspeaker ( 3 ). 2. Vehicle hands-free telephone device according to claim 1, characterized in that the loudspeaker ( 3 ) and the microphone ( 4 ) are arranged on an upper surface of the backrest section ( 1 ). 3. The vehicle hands-free telephone device according to claim 2, characterized in that the loudspeaker ( 3 ) and the microphone are arranged on the backrest section ( 1 ) and protrude equal to or less than a driver's seat side surface of the backrest section ( 1 ). 4. vehicle hands-free telephone device according to claim 1, characterized in that the speaker ( 3 ) and the microphone ( 4 ) are each included in the headrest ( 2 ). 5. Vehicle hands-free telephone device with:
a base ( 5 ) which is arranged on an upper surface of a backrest portion ( 1 ) of a vehicle seat;
a loudspeaker ( 3 ) which is attached to the base ( 5 ) on either a right or a left side of the headrest ( 2 ); and
a microphone ( 4 ) which is mounted on the base ( 5 ) on an opposite side of the upper backrest section ( 1 ) with respect to the loudspeaker ( 3 ). 6. vehicle hands-free telephone device according to claim 5, characterized in that the base ( 5 ) with struts ( 2 a, 2 b) is held on the headrest ( 2 ), the base ( 5 ) on the upper surface of the backrest portion ( 1 ) is arranged. 7. vehicle hands-free telephone device according to claim 6, characterized in that the base ( 5 ) has holes ( 5 a, 5 b) through which struts ( 2 a, 2 b) of the headrest ( 2 ) pass. 8. vehicle hands-free telephone device according to one of claims 5 to 7, characterized in that
the base ( 5 ) includes an edge parallel to the rear edge of the backrest section ( 1 ); and
wiring ( 6 ) from the loudspeaker ( 3 ) and the microphone ( 4 ) emerges from a central portion of the edge of the base ( 5 ). 9. vehicle hands-free telephone device according to claim 8, characterized in that the wiring ( 6 ) through an inside of the base ( 5 ) until it emerges from the edge of the base ( 5 ). 10. vehicle hands-free telephone device according to claim 6, characterized in that
the base ( 5 ) includes a first base ( 51 ) to which the loudspeaker ( 3 ) is attached and a second base ( 52 ) to which the microphone ( 4 ) is attached; and
the first base (51) to be kept of the headrest (2) having a first member (2 a) of the headrest (2) and the second socket (52) with a second member (2 b). 11. Vehicle hands-free telephone device according to one of claims 1 to 10, characterized in that the amplifier unit ( 10 ) for amplifying received signals in the loudspeaker ( 3 ) is included. 12. A vehicle hands-free telephone device according to claim 11, characterized in that the amplifier unit ( 10 ) for amplifying received signals on a mounting plate ( 31 ) of the loudspeaker ( 3 ) is arranged between the loudspeaker ( 3 ) and the base ( 5th ) is provided. 13. Vehicle hands-free telephone device according to one of claims 11 and 12, characterized in that the amplifier unit ( 10 ) for amplifying received signals on the base ( 5 ) is arranged. 14. Vehicle hands-free telephone device according to one of claims 1 to 13, characterized in that a wireless transmission device ( 11 ) for the wireless reception and transmission of received signals and transmission signals from or to the outside is contained in the loudspeaker ( 3 ). 15. Vehicle hands-free telephone device according to one of claims 1 to 14, characterized in that a wireless communication device ( 11 ) for wireless reception and transmission of received signals and transmission signals from or to the outside is arranged on a mounting plate ( 32 ) of the loudspeaker ( 3 ), which is provided between the loudspeaker ( 3 ) and the base ( 5 ). 16. Vehicle hands-free telephone device according to one of claims 1 to 12, characterized in that a wireless transmission device ( 11 ) for the wireless reception and transmission of received signals and transmission signals from or to the outside is arranged on the base ( 5 ). 17. Vehicle hands-free telephone device according to one of claims 5 to 16, characterized in that the loudspeaker ( 3 ) and the microphone ( 4 ) are arranged on the base ( 5 ) and are less than or equal to up to a driver's seat side surface of the backrest section ( 1 ) stick out. 18. Vehicle hands-free telephone device according to claim 17, characterized in that at least the loudspeaker ( 3 ) or the microphone ( 4 ) is movable. 19. Vehicle hands-free telephone device with:
a base ( 5 ) which is arranged on an upper surface of a backrest section ( 1 ) of the vehicle seat, the base having an upper surface;
a speaker ( 3 ) which is attached to the upper upper surface of the base ( 5 ) either on a right or left side of the headrest ( 2 ); and
a microphone ( 4 ) which is mounted on the base ( 5 ) on an opposite side of the headrest section ( 1 ) with respect to the loudspeaker ( 3 ), the microphone being attached to the base section in such a way that the headrest or a head of a person is physically between the sound receiving section of the microphone and the speaker. 20. The vehicle hands-free telephone device according to claim 19, characterized in that the headrest is always physically present between the microphone ( 4 ) and the loudspeaker ( 3 ). 21. Vehicle hands-free telephone device with:
a base ( 5 ) which is arranged on an upper surface of a backrest portion ( 1 ) of a vehicle seat, the base having a flat upper surface and a straight rear edge, the base ( 5 ) having openings which receive struts and the Hold the base ( 5 ), the base being positioned between the backrest portion and the vehicle seat with the struts passing through the openings;
a speaker ( 3 ) which is attached to the upper surface of the base ( 5 ) on either a right or a left side of the headrest ( 2 ); and
a microphone ( 4 ) which is mounted on the base ( 5 ) on an opposite side of the headrest section ( 1 ) with respect to the loudspeaker ( 3 ), the microphone being attached to the base section in such a way that the headrest or a head of a person is physically between a sound receiving portion of the microphone and the speaker. 22. The vehicle hands-free telephone device according to claim 21, since characterized by that the microphone and the speaker positioned relative to the head and headrest to reduce self-tones and echoes.