JPS63149951A - Handset for telephone set - Google Patents

Abstract

PURPOSE:To listen to music during calling or to make an opposite party listen to music by linking a 2nd front chamber and a 1st chamber, fitting the jack to a cover of the handset and connecting electrically the jack with a sounding body. CONSTITUTION:The 2nd front chamber 5 and the 1st front chamber 3 are communicated with each other, the jack 6 is fitted to the cover 1 of the handset and the jack 6 and the sounding body 4 are connected electrically. In inputting an electric signal such as music to a mini-jack 6, an electric signal is inputted to the sounding body 4 through a lead wire 7, the sounding body 4 converts the electric signal into sound, which si given to the 2nd front chamber 5, the sound wave is delivered to the 1st front chamber 3 through a communication path 8 and inputted to a transmitter 2. The sound inputted to the transmitter 2 is converted again into an electric signal, delivered to the calling party together with the voice fo the talker and it is listened to from the receiver for the caller as the side tone. Thus, music is listened to during calling by the telephone set or the music is given to the opposite party.

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a telephone handset, and is capable of listening to music or the like during a call without using a special filter, or having the other party listen to the music. This invention relates to a telephone handset capable of

(Prior art and its problems) When a caller wants to listen to music or have the other party listen to music during a phone call, the user plays the music using a music playback device or the like external to the phone and transmits the music. The usual method is to insert it into the handset along with the caller's voice.

However, in order for the other party to hear the music at a sufficient volume, you need to increase the volume of the sound emitted from the music playback device, etc.
Alternatively, the handset and receiver must be brought close to the sound emitting part of a music playback device, which is inconvenient.

Therefore, as a method to solve this problem, it has already been done to connect an electrical signal from a music reproducing device or the like directly to the recirculating line of the telephone.

However, music playback signals contain signals with higher frequencies than can be transmitted over telephone lines, and if transmitted as is, there is a risk of adversely affecting other lines.
There is a problem in that various filters and the like must be used, resulting in high costs.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a method in which a transmitter is installed in one end and a receiver is installed in the other end. In a certain T-phone handset, a first front air chamber is provided between the speaking hole of the cover of the telephone handset and the transmitter, and a sounding body is attached within the cover, A second front air chamber is provided between the sounding body and the cover, the second front air chamber and the first front air chamber communicate with each other, and a jack is attached to the cover. The jack is electrically connected to the sounding body.

(Example) Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a sectional view showing a part of a telephone handset according to an embodiment of the present invention. Reference numeral 1 denotes a cover, which is fitted together as shown in FIG. 1, has a transmitter 2 housed in one end thereof, and is used by grasping the body part by hand. 2 is a transmitter, and 3 is a first front air chamber. A first front air chamber 3 is formed by fitting the transmitter 2 inside a cylindrical wall 1a integrally formed with the cover 1. Further, on the side of the sound collecting portion of the transmitter 2 of the cover 1, a voice transmitting hole 1b is provided with the first front air chamber 3 interposed therebetween. 4 is a sounding body; 5 is a second front air chamber; 0 A cylindrical wall 1c in which the sounding body 4 is integrally molded with the cover 1;
The second front air chamber 5 is formed by fitting into the second front air chamber 5.

6 is a mini-jack, and a jack hole 6a appears on the outside of the cover, allowing a mini-plug to be inserted from the outside. 7
is a lead wire, which electrically connects the sounding body 4 and the mini-jack 6. 8 is a connecting passage, which connects the first front air chamber 3
This is a pipe-shaped space connecting the front air chamber 5 and the second front air chamber 5.

When a mini plug is inserted into the mini jack 6 and an electrical signal such as music is input from the outside, the electrical signal is input to the sounding element 4 through the lead VA 7, the sounding element 4 converts the electrical signal into sound, and the sound is transmitted to the second The air is discharged into the front air chamber 5. The emitted sound waves are transmitted to the first front air chamber 3 through the connecting path 8 and input into the transmitter 2. The sound input to the transmitter 2 is converted back into an electrical signal and transmitted to the other party along with the caller's voice.

In addition, the caller can hear the sidetone from the receiver.

According to the telephone handset of this embodiment, the first front air chamber 3 is provided between the speaking hole of the cover 1 of the telephone handset and the transmitter 2, and the first front air chamber 3 is provided in the cover 1. A sounding body 4 is attached, and a second front air chamber 5 is provided between the sounding body 4 and the cover 1, and the second front air chamber 5 and the first front air chamber 3 are connected to each other. is connected to the cover 1, and the jack 6 is connected to the cover 1.
is installed, and this jack 6 and the sounding body 4 are electrically connected, so a mini plug of a music playback device is inserted into the mini jack 6 and an electric signal of music is sent to the sounding body 4. This allows you to listen to music at a sufficient volume while talking on your phone, and let the other party hear it.

(Effects of the Invention) As explained above, according to the present invention, by using a handset with a limited frequency band and a bandpass filter in the communication circuit, there is no need for a special filter, and the To provide a telephone handset that does not adversely affect other lines even when listening to music or the like at a high volume or letting the other party hear it, and is inexpensive to manufacture.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a part of a telephone handset according to an embodiment of the present invention. 1...Cover, 1b...Talking hole, 2...Talking device,
3...First front air chamber, 4...Sounding body, 5...Second
front air chamber, 6... mini jack, 7... lead wire,
8...Concatenation〃Each.

Claims (1)

[Claims] In a telephone handset in which a transmitter is installed in one end and a handset in the other end, there is a gap between the speaking hole of the cover of the telephone handset and the transmitter. a first front air chamber is provided, a sounding body is attached within the cover;
A second front air chamber is provided between the sounding body and the cover, the second front air chamber and the first front air chamber communicate with each other, and a jack is attached to the cover. A telephone handset, characterized in that the jack and the sounding body are electrically connected.