JP2002125024A - Transmitted voice receiving structure of telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmitted voice receiving structure of a telephone having a hands-free function which utilizes a transmitting microphone disposed in a handset for collecting a transmitted voice not masked by ambient noises during hands-free talking. SOLUTION: A handset 3 has a sound guiding groove 4 formed into a sound receiving face 3c, a transmitting microphone 5 is disposed at a position spatially communicating with outside through the sound guiding groove 4 in the handset 3, and a telephone body 2 has a notched groove 22 formed into its lower support part 2d for exposing the sound guiding groove 4 to outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone having a hands-free communication function, and more particularly to a transmission sound receiving structure using a transmission microphone provided in a handset during a hands-free communication.

[0002]

2. Description of the Related Art Conventionally, in this type of telephone, in addition to a transmitting microphone provided in a handset in which a transmitting section and a receiving section are integrated, a sound collecting microphone used for hands-free communication is provided. There was a configuration separately provided in the main body.

FIG. 8 is a partial sectional view showing the configuration of a telephone disclosed in Japanese Utility Model Publication No. Hei 8-4765.
As shown in the figure, a transmission mouth recess 51 and a reception mouth recess 52 are formed in the upper part of the telephone body 50, and a handset cord 53 is provided in each of these mouth recesses 51 and 52. A transmitting unit 55 and a receiving unit 56 of the handset 54 are detachably mounted.

A transmitter 51a such as a microphone is incorporated in a transmitter 55 of the handset 54. The transmitter 51a is provided with a sound hole 59 formed in the transmitter 55 and a telephone body. The configuration is such that the sound in the external surrounding space 58 is collected through the communication cavity 57 formed in the 50.
It is disclosed that with such a configuration, it is possible to confirm the situation in the room around the telephone by the information collected by the transmitter 51a by calling the telephone from outside.

[0005]

As described above, in a configuration in which a telephone microphone is provided separately from a handset for use in a hands-free call as described above, two microphones are provided, which complicates the configuration. At the same time, the number of parts increases, leading to an increase in cost.
There was a problem that the degree of freedom in designing equipment was limited.

The above-mentioned telephone shown in FIG. 8 has a structure suitable for a room monitor function which collects the sound of an external surrounding space. Ambient sounds are picked up as noise together with the speaker's transmission sound, and transmission information that is difficult for the receiver to hear is sent.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks and to make it possible to transmit the voice of a sender during a hands-free call in a state that is easy to hear without being masked by ambient noise. It is to provide a telephone with a hands-free function.

[0008]

According to the first aspect of the present invention, there is provided a telephone transmission sound receiving structure in which a handset having a receiving section and a transmitting section formed at both ends in a longitudinal direction, and the handset are detachably mounted. A transmitting voice receiving structure of a telephone comprising a telephone body, wherein a predetermined surface area is provided on a sound receiving surface substantially parallel to the longitudinal direction of the transmitting section in which a transmitting microphone is provided. A sound introduction groove formed at an angle, a sound introduction hole formed in a wall surface forming the sound introduction groove and spatially connected to the transmission microphone, and formed in the telephone body to receive the transmission unit A cutout groove is provided around the transmission unit receiving recess and spatially connecting the outside of the telephone body and the voice introduction groove.

[0009] The transmitted voice receiving structure of the telephone according to the second aspect is as follows.
2. The transmission voice receiving structure according to claim 1, wherein the voice introduction groove is formed to be inclined with respect to the longitudinal direction.

[0010] The transmitted voice receiving sound structure of the telephone according to claim 3 is as follows.
A transmission sound receiving structure of a telephone comprising a handset in which a reception unit and a transmission unit are formed at both ends in a longitudinal direction and a telephone body to which the handset is detachably attached, wherein a transmission microphone is installed. The transmitting portion, penetrates a sound receiving surface of the transmitting portion formed substantially parallel to the longitudinal direction,
And a voice introduction path formed substantially perpendicular to the sound receiving surface, and a voice introduction hole formed on an inner side surface of the voice introduction path and spatially connected to the transmitting microphone. When mounted on the telephone body, the diaphragm of the microphone for transmission and the mounting surface of the telephone body on which the transmission section is mounted are set substantially perpendicular.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1A is a perspective view showing the appearance of a telephone according to a first embodiment of the present invention, and FIG. 1B is a side view of the telephone as viewed from the side. In the figure, a telephone 1 includes a telephone body 2 and a handset 3 which is detachably attached to the telephone body 2. The telephone body 2 has a receiver 3a of the handset 3.
And a transmitting section receiving recess 2b for receiving the transmitting section 3b of the handset 3 are formed.

FIG. 2 is a cross-sectional view including an instruction line 100 passing through the center of each of the receiving section 2a and the transmitting section 2b when the handset 3 is mounted as shown in FIG. FIG. 4 is a cross-sectional view of the vicinity of a transmitting unit 3b as viewed from a −A direction. A sound receiving surface 3c, which is in contact with the mounting surface 2c of the transmitting part receiving recess 2b and is formed substantially parallel to the longitudinal direction of the handset 3, has a central portion formed with a depth H formed along the longitudinal direction.
The sound introduction groove 4 shown in FIG. 2 is formed.

A sound introduction hole 3d (FIG. 6) is formed at the center of the wall forming the sound introduction groove 4, that is, at the center of the sound receiving surface 3c and toward the mounting surface 2c. A microphone for transmission 5 is held at a location inside the transmission section 3b and leading to the voice introduction hole 3d. In the center of the lower receiving portion 2d (FIG. 1) of the transmitting portion receiving recess 2b having the inclined mounting surface 2c formed in the receiver main body 2, the voice introducing groove 4 of the transmitting portion 3b of the handset 3 is provided. A cutout groove 2e for introducing an external sound is formed opposite to the cutout groove 2e.

Thus, even when the handset 3 is mounted on the telephone main body 2 and the transmitting section 3b is in the transmitting section receiving recess 2b, the voice introduction groove 4 formed in the sound receiving surface 3c remains in the telephone main body. 2 can be spatially connected to the outside, and external sound can be guided to the transmission microphone 5.

FIG. 3 shows a state in which the transmitting section 3b of the handset 3 is inserted into the transmitting section receiving recess 2b of the telephone body 2.
The relationship between the gap (2 × L1) in the width direction orthogonal to the longitudinal direction of the handset 3 formed by their relative positions, the width L3 of the sound introduction groove 4, and the width L2 of the notch groove L2. FIG.

FIG. 1A shows the dimensions of each part when the handset 3 is located at the center of the transmitting part receiving recess 2b. FIG. The dimensions of each part in the shifted state are shown. In the present embodiment, L3≫L2 is set as shown in FIG.
Even if there is some displacement, the entrance width X to the sound introduction groove 4
Can maintain the state of X = L2.

On the other hand, as shown in FIG. 1B, the entrance width to the voice introduction groove 4 is not closed even when the handset 3 approaches one of the transmitting section receiving recesses 2b. The dimension is set so that X1 satisfies X1 = (L2 + L3) / 2−L1> 0.

According to the above configuration, at the time of a hands-free call, the transmission voice emitted from the transmitter as shown in FIG.
Notch groove 2e formed in telephone body 2, handset 3
Through the voice introduction groove 4 and the voice introduction hole 3d formed in the handset 3, the microphone reaches the transmission microphone 5 disposed inside the handset 3 and can be converted into an electric signal.

As described above, Embodiment 1 according to the present invention
According to this telephone, during a hands-free call, the transmission voice is collected by the transmission microphone 5 in the handset 3, so that it is not necessary to separately install a microphone for the hands-free function in the telephone body.

Further, the transmitting microphone 5 mainly collects the transmitting sound in the direction in which the voice introduction groove 4 is formed, that is, the transmitting microphone 5 has directivity during a hands-free call. By taking into account the relative arrangement of the transmitter and the speaker, it is possible to clearly collect the transmitted sound without being masked by the ambient noise.

Embodiment 2 FIG. FIG. 4 (a) is a perspective view showing the appearance of a telephone according to a second embodiment of the present invention, and FIG. 4 (b) is a configuration view of the telephone with its handset 3 removed. The telephone 10 according to the second embodiment is different from the telephone 1 according to the first embodiment in that the voice introduction groove 11 formed in the sound receiving surface 3c of the transmitter 3b of the handset 3 and the direction in which the voice introduction groove 11 is formed. Notch 2 formed in accordance with
This is the position where f is formed, and all other parts have the same configuration. Therefore, the same reference numerals are given and the description is omitted, and only different parts will be described below.

In the present embodiment, the direction in which the voice introduction groove 11 is formed is inclined by θ1 with respect to the longitudinal direction of the handset 3, and the transmitting section 3b of the handset 3 is fitted into the transmitting section receiving recess 2b. In the lower receiving portion 2d,
A cutout groove 2 f is formed at a position facing the sound introduction groove 11.

Therefore, according to the above configuration, during a hands-free call, the transmission voice emitted from the sender is transmitted through the notch groove 2f formed in the telephone body 2, the voice introduction groove 11 formed in the handset 3, and The voice reaches the transmission microphone 5 disposed inside the handset 3 through the voice introduction hole 3d (FIG. 2), and is converted into an electric signal.

According to the telephone according to the second embodiment of the present invention as described above, in addition to the effects of the first embodiment,
Since the transmitting microphone 5 mainly collects the transmitting sound in the direction in which the voice introduction groove 11 is formed, the transmitting microphone 5 is suitable for use when the transmitter is located at a position inclined with respect to the front of the telephone. .

Embodiment 3 FIG. 5A is a perspective view showing the appearance of a telephone according to a third embodiment of the present invention, and FIG. 5B is a side view of the telephone viewed from the side.
The telephone 15 according to the third embodiment differs from the telephone 1 according to the first embodiment in that the configuration of the transmitter 16b of the handset 16 and the cutout groove 2e of the lower receiving portion 2d of the telephone main body 2 (FIG. ) Is missing. All other parts have the same configuration as the telephone 1 according to the first embodiment, and therefore, the same reference numerals are given and explanations are omitted, and different parts are mainly described below.

FIG. 6 shows a cross section including an instruction line 101 passing through the center of each of the receiving section 2a and the transmitting section 2b when the handset 16 is mounted as shown in FIG. It is sectional drawing of the periphery of the transmission part 16b seen from the -A direction. In the transmitting section 16b, a voice introduction path 17 penetrating the transmitting section 16b is formed in a direction substantially perpendicular to the sound receiving surface 16c in contact with the mounting surface 2c of the transmitting section receiving recess 2b.

As shown in FIG. 6, a sound introduction hole 16e is formed in the inside side face 16d of the sound introduction path 17 at a position facing the front of the telephone 15 as indicated by an arrow B. The microphone for transmission 5 is held at a location inside the transmission section 16b and leading to the voice introduction hole 16e. As a result, the front face 5b of the microphone for transmission 5 is disposed facing the direction of the angle θ2 (θ2 ≒ 90 °) with respect to the inclined mounting surface 2c formed on the receiver main body 2.

FIG. 7A is a front view of the transmitting microphone 5, and FIG. 7B is a cross-sectional view including the center line 103 shown in FIG. It is sectional drawing. As is apparent from the figure, a plurality of apertures 5a are formed on the front face 5b of the microphone 5 for transmitting external sound, and a diaphragm 5c is provided inside the front face 5b.
It is held parallel to b and displaceable in the direction of arrow E.

With the above configuration, even when the handset 16 is mounted on the telephone main body 2, the voice introduction hole 16e formed in the voice introduction path 17 is provided.
5 can be spatially connected to the outside, and external sound can be guided to the transmission microphone 5.

Note that the upper opening of the voice introduction path 17 is slightly curved in front of the telephone 15 so that the directivity of the transmitting microphone is directed in front of the telephone 15.

As described above, the third embodiment according to the present invention
According to this telephone, the transmitted voice is collected by the transmitting microphone 5 in the handset 16 during a hands-free call, so that it is not necessary to separately install a microphone for the hands-free function in the telephone body.

The transmission microphone 5 mainly collects the transmission sound in front of the telephone. That is, since the transmitting microphone 5 has directivity during a hands-free call, by considering the relative arrangement between the telephone and the transmitter, the transmitted sound is clear without being masked by ambient noise. It is possible to collect sound.

Further, the front face 5 of the transmitting microphone 5
b, that is, the diaphragm 5c is disposed so as to be oriented at substantially 90 ° with respect to the mounting surface 2c of the receiver main body 2, and the telephone main body is moved from a desk (not shown) on which the telephone 15 is mounted. 2. Vibrations transmitted to the transmitting section receiving recess 2b can be hardly picked up as noise.

[0034]

According to the transmitted voice receiving structure of the first and second aspects, the transmitted voice is collected by the transmitting microphone in the handset during a hands-free call, so that the microphone for the hands-free function is used. There is no need to install it separately on the phone body. Therefore, the configuration is simplified, the number of parts is reduced, and the cost is reduced. In addition, since a space for providing a sound collecting microphone in the telephone body is not required, the degree of freedom in designing the device can be increased.

Further, in order to give the directivity to the sound collected by the microphone for transmission, by taking into account the relative arrangement between the telephone and the transmitter, clear transmission without being masked by ambient noise. Sound can be collected.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects, in addition to the effects of the first and second aspects, the diaphragm of the microphone for transmitting the sound is approximately 9 mm away from the mounting surface of the receiver main body.
Since it is formed to be at 0 °, it is possible to make it difficult to pick up vibration transmitted from a desk on which the telephone is placed as noise.

[Brief description of the drawings]

FIG. 1A is a perspective view showing an appearance of a telephone according to a first embodiment of the present invention, and FIG. 1B is a side view of the telephone as viewed from a side.

FIG. 2 is a cross-sectional view of the vicinity of a transmitting section 3b when the instruction line 100 shown in FIG. 1 is viewed from the direction of arrows AA.

FIG. 3 (a) shows a handset 3 having a transmitting unit receiving recess 2b.
It is a dimension diagram showing the dimensions of each part when it is at the center of
(B) is a dimensional diagram showing the dimensions of each part when the handset 3 is shifted to one side of the transmitting part receiving recess 2b.

4 (a) is a perspective view showing an appearance of a telephone according to a second embodiment of the present invention, and FIG. 4 (b) is a configuration view of the telephone with its handset 3 removed.

FIG. 5A is a perspective view showing an appearance of a telephone according to a third embodiment of the present invention, and FIG. 5B is a side view of the telephone as viewed from the side.

FIG. 6 is a cross-sectional view of the vicinity of a transmitting section 16b when the instruction line 101 shown in FIG. 5 is viewed from the direction of arrows AA.

FIG. 7A is a front view of the transmitting microphone 5, and FIG. 7B is a cross-sectional view including a center line 103 shown in FIG.

FIG. 8 is a partial sectional view showing a configuration of a conventional telephone.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Telephone, 2 Telephone main body, 2a Receiving part receiving concave part, 2b Transmitting part receiving concave part, 2c Mounting surface, 2d
Lower receiving part, 2e, 2f notch groove, 3 handset, 3a receiving part, 3b transmitting part, 3c sound receiving surface, 3d sound introducing hole, 4 sound introducing groove, 5 microphone for transmitting, 5a opening, 5b front face , 5
c diaphragm, 10 telephone, 11 voice introduction groove,
15 telephone, 16 handset, 16b transmission section, 16c sound receiving surface, 16d internal side surface, 16e
Sound introduction hole, 17 sound introduction path.

Claims (3)

[Claims] 1. A transmission sound receiving structure for a telephone comprising a handset having a reception section and a transmission section formed at both ends in a longitudinal direction, and a telephone body to which the handset is detachably mounted. A sound introduction groove formed at a predetermined angle with respect to the longitudinal direction on a sound receiving surface that is substantially parallel to the longitudinal direction of the transmitting section in which a microphone for voice is provided, and a wall surface that forms the sound introduction groove And a voice introduction hole spatially connected to the microphone for transmission and formed around the transmission part receiving recess formed in the telephone body to receive the transmission part, and the outside of the telephone body and the outside. A transmission voice receiving structure for a telephone, comprising: a notch groove for spatially connecting a voice introduction groove. 2. The transmitted voice receiving structure for a telephone according to claim 1, wherein said voice introducing groove is formed to be inclined with respect to said longitudinal direction. 3. A transmission sound receiving structure of a telephone comprising: a handset having a reception unit and a transmission unit formed at both ends in a longitudinal direction; and a telephone body to which the handset is detachably mounted. A sound introduction path formed through the sound receiving surface of the transmitting portion formed substantially in parallel with the longitudinal direction, and formed substantially perpendicular to the sound receiving surface. Having a voice introduction hole formed on the inner side surface of the voice introduction path and spatially connected to the microphone for transmission, when the handset is mounted on the telephone body,
A transmitting voice receiving structure for a telephone, wherein a diaphragm of the transmitting microphone and a mounting surface of the telephone main body on which the transmitting unit is mounted are set to be substantially vertical.