JPH04334149A - Telephone set - Google Patents

Abstract

PURPOSE:To attain talking without reversing the direction when a handset is lifted up at a different direction. CONSTITUTION:A handset 21 is provided with two handsets 10a, 10b having a 2-way conversion function between a voice signal and a speech current. The handset 10a or 10b with a higher voice level is set to the transmission mode based on a voice level difference inputted from standby handsets 14a, 14b and the handset 10b or 10a with a lower voice level is set to the reception mode to attain talking.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to telephone equipment.

0002

2. Description of the Related Art A conventional telephone device has a transmitter 22 for converting voice into a transmitting current and a receiver 23 for converting a receiving current into voice. , and a transmitter 23 was fixedly attached to the other end. 24 is the main body of the telephone device.

0003

[Problems to be Solved by the Invention] In the conventional telephone device, since the mounting position of the handset 22 and the transmitter 23 on the handset 21 is fixed, the handset 21 cannot be grasped from the front side of the telephone device. Although there is no problem when using the telephone device, the arrangement relationship between the receiver 22 and the transmitter 23 of the handset 21 is reversed from the back side of the telephone device. Therefore,
It was inconvenient to have to turn the handset 21 over and change it.

SUMMARY OF THE INVENTION An object of the present invention is to provide a telephone device that allows the user to make and receive calls even when the handset is held upside down.

[0005]

[Means for Solving the Problems] In order to achieve the above object, a telephone device according to the present invention includes two handsets, two standby handsets, a comparator, and a connection circuit. A telephone device, in which two handsets are attached at a predetermined interval to a handset that is detachable from the main body of the telephone device, and has a bidirectional conversion function between voice and communication current. , the two backup handsets are each provided adjacent to the handset and have the function of converting voice into speech current, and the comparator converts the output input from the two backup handsets. The connection circuit compares the difference in signals, and the connection circuit has the function of switching one handset to a talking mode and the other handset to a receiving mode, respectively, based on the output signal of the comparator.

[0006] Furthermore, the comparison circuit compares the audio level difference or the frequency spectrum difference between the signals output from the two handsets.

[0007]

[Operation] Depending on the voice level difference or the frequency spectrum difference, one of the handsets is automatically set to the transmitting mode and the other to the receiving mode.

[0008]

[Embodiments] Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing Embodiment 1 of the present invention.

In the figure, the telephone device according to the present embodiment includes handsets 10a and 10b and two spare handsets 14.
a, 14b, a comparator 11, and a connection circuit 12.

The two spare transmitters 14a and 14b convert voice into transmitting current.

The handsets 10a and 10b convert voice into a transmitting current and convert receiving current into voice.

The handset 10a is installed at one end of the handset 21, the handset 10b is installed at the other end of the handset 21, and the two spare handsets 14a and 14b are connected to the handset 1.
The handset 21 is arranged separately on the handset 0a side and the handset 10b side, and is placed close to the handset 10a and handset 10b.
installed on.

The comparator 11 and the connection circuit 12 are connected to the handset 2.
It is incorporated within 1.

The comparator 11 has two spare transmitters 14a.
, 14b is sensed and output.

Based on the output signal 13 from the comparator 11, the connection circuit 12 sets the one with the higher audio level to the transmitting mode, and sets the one with the lower audio level to the receiving mode.

In the embodiment, the handset 21 is taken up from the telephone main body 24 and the hook switch (not shown) is turned on.
Set it to N. In this case, the question is in what condition the handset 21 is picked up. In other words, if the handset is pressed against the user's ear and the handset is placed near the user's mouth, i.e., when the handset is picked up in a position opposite to the normal usage position, the conventional telephone device cannot be used. It becomes possible.

In this embodiment, it is possible to use the device in the opposite position. That is, for example, if one handset 10a is placed against the user's ear, and the other handset 10b is placed against the user's ear and used while being held in the opposite position, the handset 10a may be placed in a separated position. 2 handsets 1
4a, 14b, for example, the transmitter 14a, the voice of the user is input, but the other transmitter 14b is not input with the voice, and therefore a difference in voice level occurs between the two. This audio level difference is sensed by a comparator 11 and compared.

The connection circuit 12 selects the transmitter 14a having the higher audio level based on the output signal 13 from the comparator 11.
The side handset 10a is set to the transmission mode and switched to connect to the transmission side circuit of the telephone device main body 24, and the side handset 10b of the side handset 14b with the lower audio level is set to the reception mode. It is switched and connected to the receiving side circuit of the main body 24.

[0020] This makes it possible to make a call without having to change hands while holding the phone in the opposite position.

(Embodiment 2) In this embodiment, the comparator 11 shown in FIG. 1 detects and compares the difference in the frequency spectrum of voices input from the spare transmitters 14a and 14b.

[0022] That is, two spare transmitters 14a, 14
The comparator 11 compares the difference in the frequency spectrum of the voice input from the voice transmitter b, and the connection circuit 12 determines that the frequency band input from the standby transmitter 14a is 0.3 to 3.6 KHz, for example.
In this case, the handset 10a is set to the receiving mode, and the handset 10
Set b to transmit mode. Also, the frequency band is 3.
When the frequency is 7 KHz or higher, the handset 10b is set to the transmitting mode and the handset 10b is set to the receiving mode.

[0023]

[Effects of the Invention] As explained above, the present invention allows the transmitting mode and the receiving mode of the handset of a telephone device to be arbitrarily set by the difference in voice level or the difference in frequency spectrum. Even if you pick up the handset, you can put your mouth to it and speak without worrying about the direction, and it will go into transmit mode, allowing you to talk immediately.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a conventional telephone device.

[Explanation of symbols]

10a, 10b handset 11 Comparator 12 Connection circuit 13 Comparator output signal 14a, 14b Spare transmitter 21 Transceiver

Claims (2)

[Claims] Claim 1: A telephone device comprising two handsets, two spare handsets, a comparator, and a connection circuit, wherein the two handsets are detachable from the main body of the telephone device. It is attached to the handset at a predetermined interval and has a bidirectional conversion function between voice and communication current, and two spare handsets are each installed adjacent to the handset, It has the function of converting voice into speech current, and the comparator compares the difference between the output signals input from two standby transmitters, and the connection circuit converts the output signal of the comparator into 1. A telephone device having a function of switching one handset to a talking mode and the other handset to a listening mode, respectively, based on the above. 2. The telephone device according to claim 1, wherein the comparison circuit compares a difference in audio level or a difference in frequency spectrum between signals output from two handsets.