JP2889320B2 - Telephone - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a telephone having a handset receiver and a handset detachably attached to the handset receiver.

(Prior Art) For example, a cordless telephone, which is one of conventional telephones, has a handset receiver and a handset having a microphone for transmission, a speaker for reception, a dial, a secondary battery for power supply, and the like. doing.

The handset cradle and the handset each have a wireless transmission / reception circuit provided inside, and a charging electrode terminal is provided outside each.

When making a call with an external telephone using such a cordless telephone, for example, an external telephone line is connected to a wireless transmission / reception circuit of the handset receiver, and the handset dial, microphone and speaker are used for handset and handset reception. A call can be made with another telephone connected to an external telephone line via each of the wireless transmission / reception circuits.

Also, when charging the secondary battery of the handset, by attaching the handset to the handset cradle,
The respective electrode terminals of the handset receiver and the band set are in direct contact, power from the handset receiver is transmitted to the secondary battery of the handset via the electrode terminals, and the secondary battery is charged.

(Problems to be Solved by the Invention) However, the telephone having the above configuration has the following problems.

In a conventional cordless telephone, the rechargeable battery of the handset is charged by directly contacting the respective electrode terminals of the handset cradle and the handset, so that a contact failure or the like is likely to occur and sufficient electrical reliability cannot be obtained. Was.

The direction in which the handset cradle is attached to the handset is determined according to the position of the electrode terminals provided on the handset cradle and the handset, and depending on the direction, even if the handset cannot be mounted on the handset cradle or can be mounted. There is a possibility that the position of each electrode terminal is shifted and the secondary battery of the handset is not charged.

The positions of the microphone and the speaker provided in the handset are determined in advance, so that the way of holding the handset is limited, and it is necessary to hold the handset while paying attention to the position of the microphone and the position of the speaker of the handset.

The dial provided on the handset is provided according to the positions of the microphone and the speaker of the handset. Therefore, when performing a dial operation while holding the handset, it is necessary to hold the handset while paying attention to the operation direction. On the other hand, if it is held, it becomes difficult to perform a dial operation.

In order to solve the problems described above, the applicant of the present application has previously proposed the following technology.

In the technology proposed earlier, an output means for outputting electric power to the outside is provided on the handset receiving stand, and an input means for inputting the output of the output means in a contactless manner is provided on the handset to charge the secondary battery of the handset. Is going. further,
The handset cradle and the attachment part of the handset have a symmetrical structure, and the output means and the input means are symmetrically arranged with respect to the center of the attachment / detachment part to diversify the mounting direction of the handset to the handset cradle. ing.

According to the above-mentioned proposed technology,
Can be solved. However, the problem has not been solved. Therefore, even with this proposal, it was not possible to sufficiently solve the problems of the conventional technology.

Although the above problem has been described as occurring as an example in the case of a cordless telephone, it is a problem that occurs not only in a cordless telephone but also in an ordinary wired telephone.

The present invention has the problems that the prior art has problems in that the mounting direction of the handset to the handset cradle is limited, and that the use form of the handset is limited due to the positions of the microphone, speaker and dial. It is to provide a telephone which has been solved.

(Means for Solving the Problems) In order to solve the above problems, according to a first aspect of the present invention, a telephone including a handset receiver and a handset detachably attached to the handset receiver. In the first and second handsets arranged at predetermined intervals, a gravity detection unit for detecting the vertical position of the first and second handsets by using mercury gravity, and a gravity detection unit A switch circuit for switching one of the first and second handsets to a handset and the other to a handset based on the output, a display for operating key display, and a dial signal arranged corresponding to the display A display control circuit for switching a display direction of the display based on an output of the gravity detection unit, and a touch panel switch for switching the display direction of the display based on the output of the gravity detection unit. And a dial signal output unit for switching dial signal output by the switch. Further, the handset receiver and the detachable portion of the handset have a symmetrical structure, and contact or non-contact output means and input means provided opposite to the handset receiver and the handset are provided at the center of the detachable portion. The handset cradle and the handset are configured to be detachable in any direction.

According to a second aspect of the present invention, in a telephone equipped with a handset receiver and a handset detachably attached to the handset receiver, first and second handsets arranged at predetermined intervals, and the first and second handsets are provided. And a gravity detector for detecting the vertical position of the second handset by using gravity with mercury;
A switch circuit for switching one of the first and second handsets as a handset and the other as a handset based on the output of the gravity detector, and a first and a second for displaying operation keys having different display directions. A display, first and second touch panel switches arranged respectively corresponding to the first and second displays for outputting a dial signal, and the first display based on an output of the gravity detector. Device, the first touch panel switch, the second display device, and the second touch panel switch.
And a switching means for switching one of the touch panels to an operating state. Further, the handset receiver and the detachable portion of the handset have a symmetrical structure, and contact or non-contact output means and input means provided opposite to the handset receiver and the handset are provided at the center of the detachable portion. The handset cradle and the handset are configured to be detachable in any direction.

According to a third aspect, in the telephone set of the first or second aspect, among the contact-type or non-contact-type output means and the input means provided to face the handset receiver and the handset, The components to be provided are arranged in an annular shape with respect to the center of the detachable portion.

(Operation) According to the first aspect of the invention, since the telephone is configured as described above, the handset according to the first measure is, for example, an acousto-electric conversion element such as a microphone having the function of a handset and an electric device having the function of a handset. It is composed of an acoustic conversion element, or it is composed of an electroacoustic conversion / acoustic-electrical conversion element having the functions of a transmitter and a receiver, and the second transmitter / receiver is also configured in the same manner as the first transmitter / receiver, for example. You.

The gravity detection unit detects the vertical position of the first and second handsets by gravity using mercury when the user of the telephone holds the handset. As a result, the first and second
It can be seen which of the two handsets is placed on the ear and the other is on the mouth.

The switch circuit, based on the output of the gravity detection unit, causes the upper one of the first and second handsets, that is, the one placed on the ear to function as a receiver, and is located below. The other handset, that is, the handset located at the mouth, is switched to function as the handset.

Since the display (display) and the touch panel switch arranged corresponding to the display are provided, operation keys such as dial buttons are displayed on the display, and the positions of the operation keys displayed on the display are displayed on the display. When the user touches the touch panel switch, a predetermined dial signal is output. The display control circuit, based on the output of the gravity detector,
The writing direction of the display is switched according to the change in the vertical position of the first and second handsets. The dial signal output unit switches the dial signal output by the touch panel switch according to the switching of the display direction of the display.

In addition, since the handset receiver and the handset are configured to be detachable in any direction, the handset can be mounted on the handset receiver in any direction.

According to the second invention, the first and second indicators and the first and second indicators are provided.
And a second touch panel switch.
On the second display, the operation keys are displayed in different directions. The switching means is based on the output of the gravity detection unit,
A first display and a first touch panel switch;
Is switched to one of the display and the second touch panel switch, and in that case, the other is inactivated.

According to the first, second and third inventions, the handset receiver and the handset have a symmetrical structure, and output means and input means provided to face the handset receiver and the handset, respectively, are provided on the handset receiver and the handset. They are arranged symmetrically with respect to the center. Therefore, even if the handset is detachably attached to the handset receiving stand in any direction, the output means and the input means face each other, and transmission of power or the like therebetween is caused by a non-contact state or a contact state. Done. Therefore, the above problem can be solved.

(Embodiment) FIGS. 1 (a) and 1 (b) are configuration diagrams of a cordless telephone according to a first embodiment of the present invention. FIG. 1 (a) is a perspective view, and FIG. FIG. 2A is an exploded side view, and FIGS. 2A to 2D are configuration diagrams of the handset in FIG. 1, and FIGS. 2A and 2B are diagrams viewed from the front side. FIGS. 3 (c) and 3 (d) are views from the back side, FIG. 3 is a circuit block diagram of the handset in FIG. 1, and FIG. 4 is a view showing a connection configuration of a dial unit in FIG. is there.

The cordless telephone 10 includes a handset receiving base 20 having a substantially rectangular planar shape, and a handset 30 that is detachably attached to the handset receiving base 20.

The handset cradle 20 has a case 21 and the case 21
The receiving plate portion 22 and the receiving plate portion 23 are formed at a predetermined distance from each other. Here, the case 21 has a symmetrical shape with respect to the center between the receiving portions 22 and 23. In the case 21, a wireless transmission / reception circuit, a power supply unit, and the like (not shown) are provided. The wireless transmitting and receiving circuit is, for example, an external telephone line L
And the power supply section is supplied with power from an AC power supply. Further, on the inner wall side of the case 21, an output means 24 is provided at the center of a portion attached to and detached from the handset 30. This output means 24 is for outputting the electric power from the power supply unit to the outside, and is configured by, for example, a coil for magnetic coupling,
It is formed symmetrically with respect to the center of the detachable part.

The handset 30 has a case 31. In the case 31, transmission / reception units 33 and 34 are formed symmetrically at a predetermined interval with a grip unit 32 interposed therebetween. Here, case 31 is
It has a symmetrical shape with respect to the center between the transmission / reception units 33 and 34. In the case 31, a first handset 35, a second handset 36, a wireless transmitting / receiving circuit 37, a gravity detector 38, an input unit 39, a secondary battery 40, and a dial unit 41 are provided. On the front side of the case 31 in the grip portion 32, a display 42 such as a liquid crystal display for displaying operation keys is provided.
And a touch panel switch 43 arranged on the display 42 in correspondence with the operation key display of the display 42 and outputting a dial signal.

The handset 35 converts an electric signal into a voice signal or converts a voice signal into an electric signal. The handset 35 is provided in the handset 33 and includes a microphone 35-1 and a speaker 35-2. The handset 36 has the same function as the handset 35, and is provided in the handset 34, and includes a microphone 36-1 and a speaker 36-2.
It is composed of

The wireless transmitting and receiving circuit 37 has a function of transmitting and receiving a communication radio signal to and from the wireless transmitting and receiving circuit of the handset receiving stand 20, and is provided, for example, in the grip portion 32.
1. Receiving circuit 37-2, antenna unit 37-3, antenna 37
-4, and a switch circuit 37-5. here,
The switch circuit 37-5 includes, for example, a switch 37-5a and a switch 37-5b, and each of the switches 37-5a and 37-5b includes:
The switching operation is performed based on the output of the gravity detector 38.

The gravity detector 38 has a function of detecting the vertical position of the handsets 35 and 36 by gravity, and for example, FIG.
It is configured as shown in FIG. 5 (a) to 5 (d) are configuration diagrams showing an example of the configuration of the gravity detection unit. FIGS. 5 (a) and 5 (b) are schematic diagrams showing the structure, and FIGS. (d) is an equivalent circuit diagram of FIGS. As shown in FIG.
Has an insulating tube 38-1 made of, for example, glass or the like, and one end of the insulating tube 38-1 has an electrode 38-2,
38-3 is provided, and electrodes 38-4 and 38-5 are provided at the other end. Further, mercury 38 is placed inside the insulating tube 38-1.
-6 is enclosed.

The input means 39 is for charging the secondary battery 40 by inputting the output of the output means 24 of the handset receiving stand 30 in a non-contact manner, and has substantially the same configuration as that of the output means 24 by, for example, a magnetic coupling coil. It is a central part of a detachable part on the inner wall side of the case 31 in the grip part 32, and
Is provided at a position close to and opposed to the output means 24.

The secondary battery 40 supplies power to the wireless transmission / reception circuit 37 and the like.

The dial unit 41 has a function of outputting a dial signal, a display control circuit 41-1 for switching and displaying a display direction of the display 42 based on an output of the gravity detection unit 38, a touch panel switch 43, and a gravity detection unit. A dial signal output unit 41-2 connected to the display unit 38 for switching and outputting a dial signal in accordance with the switching of the display direction of the display 42.

Next, operations (a), (b) and (c) when the cordless telephone 10 is used will be described with reference to Table 1.

(A) First Operation When the cordless telephone 10 makes a call with another external telephone connected to the telephone line L, first, the user
With the grip portion 32 in hand, the handset 30 is held with the handset 35 side up and the handset 36 side down, for example. Then, in the gravity detecting unit 38, for example, the mercury 38-6 conducts between the electrode 38-4 and the electrode 38-5, and the output is transmitted to the wireless transmitting / receiving circuit 37.
Is input to the switch circuit 37-5. With this input,
In the switch circuit 37-5, as shown in Table 1, the switch
37-5a connects the transmission circuit 37-1 and the microphone 36-1, and the switch 37-5b connects the reception circuit 37-2 and the speaker 35-2. At this time, the microphone 35-1 and the speaker 36-2 are disconnected from the circuit. The output of the gravity detection unit 38 is output to the display control circuit 41-1 of the dial unit 41 and the dial signal output unit 41.
-2 is input. The display control circuit 41-1 drives the display 42 according to the output of the gravity detector 38, and causes the display 42 to display the operation keys in the display direction as shown in FIG. 2 (a). In addition, the dial signal output unit 41-2 performs a corresponding process between the operation key display of the display 42 and the dial signal Sd output by the touch panel switch according to the output of the gravity detection unit 38.

After the operation keys are displayed on the display 42, the user touches the touch panel switch 43 of the desired operation key according to the display on the display 42, and the dial signal output unit 41-2.
Outputs a dial signal.

When the dial signal Sd is output from the dial unit 41, a radio signal is transmitted / received between the wireless transmitting / receiving circuit 37 and the wireless transmitting / receiving circuit on the handset receiving stand 20 side, and the other telephone connected to the telephone line L Is called, the microphone 36
-1 and the speaker 35-2 can communicate with the other party.

(B) Second operation When holding the handset 30, the transceiver 36 is turned up,
When the transceiver 35 side is down, the gravity detector 38
The electrode 38-4 and the electrode 38-5 are separated from each other to form an electrode 38-2.
And the electrodes 38-3 are electrically connected by the mercury 38-6. The output of the gravity detector 38 is input to the switch circuit 37-5. Then, in the switch circuit 37-5, as shown in Table 1, the switch 37-5a connects the transmission circuit 37-1 and the microphone 35-1, and the switch 37-5b connects the reception circuit 37-2 and the speaker 36.
-2 is connected. At this time, the microphone 36-1 and the speaker 35
-2 is disconnected from the circuit. In addition, the gravity detector 38
Is input to the display control circuit 41-1 and the dial signal output unit 41-2 of the dial unit 41, the display control circuit 41
-1 is the display direction as shown in FIG.
The operation keys are displayed on the dial signal output section 41.
In the case of -2, the output of the dial signal Sd is switched by the touch panel switch 43 in accordance with the switching of the display direction of the display 42. Thereafter, almost in the same manner as in the case of the operation (a), when the other party's telephone is connected to the telephone line L, a call can be made with the other party using the microphone 35-1 and the speaker 36-2.

(C) Third Operation When charging the secondary battery 40 of the handset 30, the handset is mounted on the handset receiving stand 20. For example, the transmitter / receiver 33 is inserted into the receiver 22 and the transmitter / receiver 34 is inserted into the receiver 23 to mount the handset 30. Then, the output means 24
And the input means 39 are in close proximity to each other, for example, if the power from the AC power supply is output to the outside by the output means 24 via the power supply unit of the handset cradle 20, the output is input in a non-contact manner by the input means 39. Thus, the secondary battery 40 is charged. In this case, the transmission / reception unit 33 and the transmission / reception unit 34, the receiving unit 22 and the receiving unit 23 are formed symmetrically, and the output unit 24 and the input unit symmetrical with respect to the center are formed at the respective center portions. Since the means 39 are provided respectively, the transmitting / receiving section 33 is
It is also possible to put the transmitter / receiver unit 34 in the receiver unit 22 and the output unit 24 and the input unit 39 are disposed close to each other, so that the secondary battery 40 is charged. .

The first embodiment has the following advantages.

(I) The cordless telephone 10 is provided with handsets 35 and 36, a switch circuit 37-5, and a gravity detector 38. Therefore, by the switching of the switch circuit 37-5 performed based on the output of the gravity detecting unit 38, each of the handsets 35 and 36 functions as a handset or a handset. Therefore, the user does not need to care about the positions of the transmitter and the receiver and hold the handset 30 as in the related art.
10 functionality is improved.

(II) The dial section 41 is provided with a display control circuit 41-1 and a dial signal output section 41-2. Therefore, the direction in which the user holds the handset 30 is detected by the gravity detection unit 38, and the display control circuit 41-1 switches the display on the display 42 according to the direction. Therefore, even if the user holds the handset 30 in an arbitrary direction, the operation keys are displayed on the display 42 in a display direction corresponding to the direction of the handset 30, and the display direction is in the direction of the handset 30. It switches automatically according to it. Therefore, the switch circuit 37−
5 cooperates with the switching operation of the handset 35, 36, thereby increasing the degree of freedom of holding the handset 30 and smoothing the dial operation.

(III) In the present embodiment, the transmission / reception units 33 and 34 are formed symmetrically, the receiving pans 22 and 23 are formed symmetrically, and the output means 24 and the input means 39 having a symmetrical structure are provided at each central part. Provided. Therefore, the handset cradle of handset 30
Since the mounting direction with respect to 20 is obtained by two directions different by 180 °, and the output means 24 and the input means 39 are closely opposed even if the handset 30 is mounted in any of the two directions,
The secondary battery 40 can be charged by supplying power from the handset receiving stand 20.

(IV) Since the gravity detection unit 38 is configured based on the conductivity of the mercury 38-6 and the movement action due to gravity, the vertical position of the handsets 35, 36 can be detected with a simple configuration and reliably.

6 (a) and 6 (b) are configuration diagrams of a cordless telephone according to a second embodiment of the present invention, wherein FIG. 6 (a) is a perspective view and FIG. 6 (b) is FIG. FIG. 5 is a diagram showing a contact state of electrode terminals in FIG. In the drawing, the same elements as those in FIG. 1 are denoted by the same reference numerals.

This cordless telephone 10a has a handset receiving stand 20a and a handset 30a. Handset 20a and handset 30a have substantially the same configuration as handset cradle 20 and handset 30 of cordless telephone 10, respectively.

The point that the handset receiving stand 20a is different from the handset 20 is that, instead of the non-contact type output means 24, as the contact type output means, metal electrode terminals 24a and 24b are provided on the pan 22 and the metal electrode terminals are provided. That is, 24c and 24d are provided in the pan section 23. Here, the electrode terminals 24a to 24d are arranged symmetrically with respect to the center of the attachment / detachment portion between the handset receiving base 20a and the handset 30a, for example, the electrode terminals 24a and 24c.
Is used for the positive electrode, and the electrode terminals 24b and 24d are used for the negative electrode.

The difference between the handset 30a and the handset 30 is that, instead of the non-contact type input means 39, as the contact type input means, electrode terminals 39a and 39b made of metal are provided in the transmission / reception section 33, and the electrode terminals 39c made of metal are provided. , 39d in the transmission / reception section 34. Here, each of the electrode terminals 39a to 39d is connected to the secondary battery 40, and when the handset 30a is mounted on the handset receiving base 20a, each of the electrode terminals 24a
~ 24d. Further, for example, the electrode terminals 39a and 39bc are used for a positive electrode, and the electrode terminals 39a and 39bc are used.
b and 39d are used for the negative electrode.

The cordless telephone 10a can be used to communicate with an external telephone in almost the same manner as the cordless telephone 10, but the charging method of the cordless telephone 10 and the secondary battery 40 is different. When the secondary battery 40 is charged by the handset 30a, for example, when the transmitter / receiver unit 33 is inserted into the receiver unit 22 and the transmitter / receiver unit 34 is inserted into the receiver unit 23, as shown in FIG.
24a and 39a, the electrode terminals 24b and 39b, the electrode terminals 24c and 39c, and the electrode terminals 24d and 39d are in direct contact with each other, for example, a DC power supply from the power supply unit of the handset receiving stand 20a. Charging is performed. Also, in the cordless telephone 10a, when the transmitter / receiver unit 33 is placed in the receiver unit 23 and the transmitter / receiver 34 is placed in the receiver unit 22, the electrode terminals 24a and 39a, the electrode terminals 24b and 39d, Terminal 24c and electrode terminal 39a, electrode terminal 24d and electrode terminal 3
9b come into contact with each other to charge the secondary battery 40.

In the second embodiment, substantially the same operation as that of the first embodiment can be obtained, and advantages (I) to (IV) can be obtained almost similarly.

FIGS. 7 (a), (b) and (c) are block diagrams of a cordless telephone showing a third embodiment of the present invention. FIG. 7 (a) is a perspective view, and FIGS. FIG. 3C is a diagram showing a contact state of the contact terminal in FIG. In the drawing, the same elements as those in FIG. 1 are denoted by the same reference numerals.

This cordless telephone 10b has a handset receiving stand 20b and a handset 30b. Handset cradle 20b
And the handset 30b, respectively, the cordless telephone 10
Of the handset receiver 20 and the handset 30 described above.

The difference between the handset receiving stand 20b and the handset 20 is that, instead of the non-contact type output means 24, an electrode terminal 24e made of metal is provided on the receiving portion 22, and an electrode terminal 24f made of metal is provided on the receiving portion 23. That is. Here, electrode terminal 2
4e, 24f are provided symmetrically with respect to the center of the detachable portion of the handset receiving base 20b and the handset 30b, for example, the electrode terminal 24e is used for the positive electrode,
The electrode terminal 24f is used for a negative electrode.

The difference between the handset 30b and the handset 30 is that, instead of the non-contact type input means 39, an electrode terminal 39e made of metal is provided in the transmission / reception section 33, and an electrode terminal 39f made of metal is provided in the transmission / reception section 34. That is. Here, each electrode terminal 3
9e and 39f are connected to the secondary battery 40, and are arranged at positions that directly contact the respective electrode terminals 24e and 24f when the handset 30b is mounted on the handset receiving base 20b, for example, the electrode terminals 39e is used for a positive electrode, and the electrode terminal 39f is used for a negative electrode. Further, the handset 30b is provided with a rectifier circuit 44 as shown in FIGS. 7 (b) and (c) between the electrode terminals 39e and 39f and the secondary battery 40. The rectifier circuit 44 is composed of cross-connected diodes 44-1 to 44-4.

The cordless telephone 10b can be used in almost the same manner as the cordless telephone 10 to communicate with an external telephone, but the charging method of the secondary battery is different from that of the cordless telephone 10. When the rechargeable battery 40 is charged by the handset 30b, for example, when the transmitter / receiver unit 33 is inserted into the receiver unit 22 and the transmitter / receiver unit 34 is inserted into the receiver unit 23, as shown in FIG. 24e and electrode terminal 39e, and electrode terminal 24f and electrode terminal 39f
Are in direct contact with each other, and for example, a DC power supply from the power supply unit of the handset receiving stand 20b passes through the diodes 44-1 and 44-3 via the electrode terminals 24e and 24f and the electrode terminals 39e and 39f, and passes through the secondary battery 40. Is charged.

When the transmitter / receiver unit 33 is inserted into the receiver unit 23 and the transmitter / receiver unit 34 is inserted into the receiver unit 22, as shown in FIG. 7 (c), the electrode terminals 24e and 39f and the electrode terminals 24f And the electrode terminal 39e are connected respectively, and the diodes 44-2 and 44
-4, the secondary battery 40 is charged.

In the third embodiment, substantially the same operations as those of the first embodiment are obtained, and substantially the same advantages (I) to (IV) are obtained.

8 (a) and 8 (b) are block diagrams of a cordless telephone showing a fourth embodiment of the present invention, wherein FIG. 8 (a) is a perspective view and FIG. 8 (b) is FIG. 9 (a) to 9 (d) are structural views of the handset of FIG. 8, and FIGS. 9 (a) and 9 (b) are views from the front side, and FIGS. (D) is a view from the back side, and FIG.
FIG. 9 is a circuit block diagram of the handset of FIG. 8. In the figure,
1 and 5 are denoted by the same reference numerals.

This cordless telephone 50 has a handset receiving stand 60 and a handset 70.

The handset receiver 60 has a case 61,
The interior of 61 has substantially the same configuration as handset cradle 20, but the shape of case 61 is different from case 21 of handset cradle 20. The case 61 has a circular planar shape, and is provided with an annular saucer portion 62 near the outer periphery of the case 61, and at the center of the annular shape, a conical convex portion 63 is provided. As in the case, the output means 24 having a symmetric structure is provided inside the case 61.

The handset 70 has a case 71, and the case 71 has transmission / reception units 73 and 74 formed at predetermined intervals with a grip 72 interposed therebetween. Here, the case 71 is
It has a symmetrical shape with respect to the center in 73 and 74. In the vicinity of the center of the grip portion 72, an inverted conical concave portion 75 recessed into the case 71 is formed. Transmitter / receiver units 73 and 74
Have another first handset 76 and another second handset 77, respectively. The handsets 76 and 77 have dual-purpose elements 76-1 and 76-1, which have the functions of a microphone and a speaker, respectively.
77-2.

Further, in the case 71, similarly to the cordless telephone 10, a wireless transmission / reception circuit 37, a gravity detection unit 38, an input unit 39, a secondary battery 40, and a dial unit 41 are provided. The dial unit 41 is configured using a display control circuit 41-1a and a dial signal output unit 41-2a.

Further, on the surface of the case 71 of the grip portion 72, the display device 78, the touch panel switch 79 arranged corresponding to the display device 78, the display device 80, and the display device 80 with the inverted conical concave portion 75 interposed therebetween. A corresponding touch panel switch 81 is provided. Here, the display units 78 and 80 and the touch panel switches 79 and 81 are connected to the dial unit 41 as shown in FIG. FIG. 11 is a diagram showing a connection configuration of the dial unit in FIG.

As shown in FIG. 11, the displays 78 and 80 are connected to a display control circuit 41-1a as switching means. The display control circuit 41-1a provides a display 78 and a display based on the output of the gravity detector 38.
It has the function of switching one of the 80 to the operating state. Further, the touch panel switches 79 and 81 are connected to the dial signal output unit 41-2a. Dial signal output section
41-2a is a touch panel switch 79 of the display unit 78 or 80 which is in the operating state based on the output of the gravity detection unit 38.
Alternatively, it has a function of setting 81 to the operating state.

Next, the operation when the cordless telephone 50 is used will be described with reference to Table 2.

The cordless telephone 50 is used in substantially the same manner as the cordless telephone 10, but in the case of the cordless telephone 30, the switching operation of the switch circuit 37-5 is different. In this case, the user holds the handset 70 with the grip 72, for example, with the handset 76 side up and the handset 77 side down. Then, based on the output of the gravity detecting unit 38, the switch circuit 37-5 connects the switch circuit 37-5a to the transmission circuit 37-1 and the shared element 77-1 based on the output of the gravity detection unit 38, and the switch circuit 37-5.
5b connects the receiving circuit 37-2 and the shared element 65-1. At this time, the dual-purpose element 77-1 functions as a transmitter, and the dual-purpose element 76-1
-1 functions as a receiver.

When holding the handset 70, make the transceiver 77 side up,
When the handset 76 side is down, the switch circuit 37-5 is
Based on the output of the gravity detector 38, as shown in Table 2, the switch 37-5a connects the transmission circuit 37-1 to the shared element 76-1, and the switch 37-5b connects to the reception circuit 37-2 and the shared element 77. -1
Connect. At this time, dual-purpose element 77-1 functions as a receiver, and dual-purpose element 76-1 functions as a transmitter.

Thereafter, a telephone call with another telephone is performed in substantially the same manner as in the first embodiment, but when charging the secondary battery 40 of the handset 70, the handset 70 is
When the secondary battery 40 is attached to the secondary battery 60, the output means 24 and the input means 39 are close to each other and are opposed to each other so that the secondary battery 40 is charged without contact.

In the fourth embodiment, substantially the same operation as in the first embodiment can be obtained, and the advantages (I), (II). (IV) is obtained. Further, in the present embodiment, since the receiving portion 62 is formed in an annular shape, the handset 70 is
When the battery is mounted on the secondary battery 40, the secondary battery 40 can be charged in any direction. In either case, the output unit 24 and the input unit 39 are close to and opposed to each other. Therefore, it is convenient when a plurality of persons commonly use a conference table or the like. In addition, since the conical convex portion 63 and the inverted conical concave portion 75 are provided, the handset 70
It can be prevented from sliding down from 60.

12 (a) and 12 (b) are block diagrams of a cordless telephone according to a fifth embodiment of the present invention. FIG. 12 (a) is a perspective view, and FIG. 12 (b) is FIG. FIG.

The cordless telephone 50a has a handset receiving stand 60a and a handset 70a. Handset cradle 60a
And the handset 70a are respectively
And the handset 70 have a similar configuration,
The following points are different.

The handset receiver 60a is provided with a circular electrode terminal 63 made of metal at the center of the attachment / detachment portion of the handset receiver 60a, instead of the output means 24 of the handset receiver 60, and an annular ring around the electrode terminal 63. Electrode terminal (slip ring) 64
Is provided.

The handset 70a replaces the input means 39 of the handset 70 with the electrode terminal 82 at a position directly in contact with the electrode terminal 63.
The electrode terminal is located at a position where the
83,84 are provided.

In this cordless telephone 50a, the cordless telephone 50a
In the same manner as described above, a telephone call can be made with another telephone, and by attaching the handset 70a to the handset receiving stand 60a, as shown in FIG. 12 (b), the electrode terminals 63 and 82 are The electrode terminal 64 and the electrode terminals 83 and 84 are in direct contact with each other, and the secondary battery 40 is charged. In the fifth embodiment, substantially the same operation as in the fourth embodiment is obtained.
Almost the same advantages are obtained.

Note that the present invention is not limited to the illustrated embodiment, and various modifications are possible. For example, there are the following modifications.

(A) The structure, shape, circuit configuration, method of use, and the like of the handset receiver and the handset of the first to fifth embodiments can be variously modified. For example, the gravity detecting unit 38 can be constituted by other means without using mercury, and the movable contact of the switch circuit 37-5 is constituted by mercury in the same manner as in FIG. The function of the gravity detection unit 38 can also be used. The configurations of the output means and the input means of the first to fifth embodiments can be applied to the telephones of the other embodiments, and the same applies to each display and touch panel switch. In the second embodiment, any one of the electrode terminals 39a and 39b or the electrode terminals 39c and 39d may be omitted, or the electrode terminals 24a and 24b or the electrode terminal 2 may be omitted.
One of the sets 4c and 24d may be omitted. In the fifth embodiment, if the electrode terminals 83 or 84 are omitted, or if the electrode terminals 63 are formed in a ring shape and provided outside the electrode terminals 64 and the electrode terminals 82 are formed accordingly, FIG. Effective use, such as arranging a dial or the like at the positions of the electrode terminals 63 and 82 in the above, can be achieved.

(B) FIG. 13 is an external view of a cordless telephone showing a modification of the first, second and third embodiments, and FIG.
FIG. 14 is a configuration diagram of the cordless telephone of FIG. 13; In the drawing, the same elements as those in FIG. 1 are denoted by the same reference numerals.

The cordless telephone 90 has substantially the same configuration as the cordless telephone 10, but unlike the cordless telephone 10, a rotating member 91 that rotatably supports a handset cradle 20c obtained by shaping the handset cradle 20. Is provided.

This further improves the usability of the cordless telephone 90. Such a rotating member 91 can be provided in the telephones of the fourth and fifth embodiments. In addition, various modifications such as providing an antenna outside each handset and providing a suction cup at the bottom of each handset receiving stand are conceivable.

(C) In the first to fifth embodiments, the case of a cordless telephone has been described. However, the present invention can be widely applied to, for example, a wired telephone other than the cordless telephone.

(Effects of the Invention) As described in detail above, according to the first invention, the first handset, the second handset, the gravity detector, and the switch circuit are provided. The switch circuit detects the up and down positions of the first and second handsets, and causes one of the first and second handsets to function as a handset and the other to function as a handset based on the output of the gravity detector. Is switched. Therefore, the user can use the telephone without worrying about the direction in which the handset is held, and the handset and the handset receiver are configured to be detachable in any direction. Functionality is improved.

According to the first and second aspects of the invention, mercury is used in the gravity detector for automatic switching of the handset, so that poor contact does not occur. Further, based on the output of the gravity detector, the display direction of the display and the output of the dial signal by the touch panel switch are switched. Therefore, the display direction is automatically switched according to the way of holding the handset, and the operability of dial operation is improved.

According to the first, second and third aspects of the invention, the output unit and the input unit can be opposed to each other even when the handset is attached to the handset receiving stand in any removable direction. Alternatively, power and electric signals can be transmitted between the handset receiver and the handset by direct contact.

[Brief description of the drawings]

1 (a) and 1 (b) are configuration diagrams of a cordless telephone showing a first embodiment of the present invention, and FIG. 1 (a) is a perspective view,
FIG. 2 (b) is an exploded side view of FIG. 2 (a), and FIGS.
(D) is a configuration diagram of the handset in FIG. 1, and (a) and (b) are diagrams viewed from the front side, and (c) and (b) of FIG.
(D) is a view from the back side, FIG. 3 is a circuit block diagram of the handset in FIG. 1, FIG. 4 is a view showing a connection configuration of a dial unit in FIG. 3, and FIGS. (D) is a configuration diagram of the gravity detection unit, (a) and (b) are schematic diagrams, (c) and (d) are equivalent circuit diagrams of (a) and (b),
6 (a) and 6 (b) are configuration diagrams of a cordless telephone showing a second embodiment of the present invention, and FIG. 6 (a) is a perspective view,
7 (b) is a diagram showing the contact state of the electrodes of FIG. 7 (a), and FIGS. 7 (a), 7 (b) and 7 (c) are schematic diagrams of a cordless telephone showing a third embodiment of the present invention. (A) is a perspective view, (b) and (c) show the contact state of the contact terminal in FIG. (A), and FIGS. 8 (a) and (b) show the present invention. FIGS. 8A and 8B are configuration diagrams of a cordless telephone showing a fourth embodiment of the present invention. FIG. 9A is a perspective view, FIG. 9B is an exploded side view of FIG. 9A, and FIGS. ) Is a configuration view of the handset of FIG. 8, wherein FIGS. 8A and 8B are views from the front side, FIGS. 8C and 8D are views from the back side, and FIG. FIG. 8 is a circuit block diagram of the handset, and FIG.
FIG. 10 is a diagram showing a connection configuration of a dial unit, FIGS. 12 (a) and 12 (b) are configuration diagrams of a cordless telephone according to a fifth embodiment of the present invention, and FIG. 12 (a) is a perspective view. 13 (b) is an exploded configuration diagram, FIG. 13 is a diagram showing a modification of the first to third embodiments, and FIG. 14 is a configuration diagram of the cordless telephone of FIG. 10,10a, 10b, 50,50a, 90 …… Cordless telephone, 20,20a, 2
0b, 20c, 60, 60a: Handset receiving stand, 24: Output means, 24a to 24f, 39a to 39f: Electrode terminal, 30, 30a, 30b, 70, 70a
... Handset 35, 36, 76, 77 ... Handset, 37-5 ...
... Switch circuit, 38 ... Gravity detector, 42,78,80 ... Display, 43,79,81 ... Touch panel switch, Sd ... Dial signal.

Continuation of front page (72) Inventor Tomoyuki Kurosaki 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (56) References JP-A-57-129057 (JP, A) JP-A-62-1 97455 (JP, A) Jikken 49-24166 (JP, Y1) Japan Institute of Invention and Innovation Technical Report No. 87-6273 (58) Fields investigated (Int. Cl. ⁶ , DB name) H04M 1/00-1 /twenty three

Claims (3)

(57) [Claims] 1. A telephone having a handset receiver and a handset detachably attached to the handset receiver, a first and a second handset arranged at a predetermined interval,
A gravity detector that detects the vertical position of the first and second handsets by gravity using mercury; and transmits one of the first and second handsets based on the output of the gravity detector. A switch circuit for switching the other as a receiver, a display for operating keys, a touch panel switch arranged corresponding to the display to output a dial signal, and the display based on an output of the gravity detection unit. A display control circuit for switching the display direction of the display, and a dial signal output unit for switching the output of a dial signal by the touch panel switch in accordance with the switching of the display direction of the display, provided in the handset, the handset cradle and the Contact type or non-contact type provided with a symmetrical structure of the detachable part of the handset, which is provided to face the handset cradle and the handset, respectively. A telephone having a structure in which output means and input means of a mold are arranged symmetrically with respect to the center of the attaching / detaching portion, and wherein the handset receiving base and the handset are detachable in arbitrary directions. 2. A telephone having a handset receiver and a handset detachably mounted on the handset receiver, comprising: first and second handsets arranged at predetermined intervals;
A gravity detector that detects the vertical position of the first and second handsets by gravity using mercury; and transmits one of the first and second handsets based on the output of the gravity detector. A switch circuit for switching the other as a handset, first and second indicators for displaying operation keys having different display directions, and dial signals arranged respectively corresponding to the first and second indicators. First and second
For switching any one of the first display, the first touch panel switch, the second display, and the second touch panel to an operation state based on an output of the touch panel switch and the gravity detection unit. Means, provided on the handset, the handset cradle and the detachable portion of the handset have a symmetrical structure, contact type or non-contact type output means and input means provided to face the handset cradle and the handset, respectively. A telephone set symmetrically arranged with respect to a center portion of the attaching / detaching portion, and wherein the handset receiver and the handset are configured to be detachable in any direction. 3. The contact type or non-contact type output means and input means provided opposite to the handset receiving base and the handset, the one provided on the handset receiving base with respect to the center of the detachable part. 3. The telephone according to claim 1, wherein the telephones are arranged in an annular shape.