GB2281004A

GB2281004A - Combined microphone/earphone

Info

Publication number: GB2281004A
Application number: GB9316709A
Authority: GB
Inventors: Chao-Ming Yang
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-11
Filing date: 1993-08-11
Publication date: 1995-02-15
Also published as: GB9316709D0

Abstract

An external listening and speaking device for a walkie-talkie comprises an earphone-like microphone in which are mounted an earphone chip and a microphonoscope 311, 312 connected in parallel with a switch 32, and two connectors connected with said switch via a wire, whereby only one ear of the user must wear the earphone-like microphone and so the user will not be hindered from perceiving external ambient sounds. <IMAGE>

Description

TITLE: AN EXTERNAL LISTENING AND SPEAKING DEVICE FOR A WALKIE-TALKIE This invention relates to an improved external listening and speaking device for a walkie-talkie.

It has been found that the external listening and speaking devices for walkie-talkies sold in the marketplace are unsatisfactory in use. As shown in FIG.

1, there is shown a prior art walkie-talkie with an external listening and speaking device. As illustrated, the external listening and speaking device includes a pair of earphones 11 and a microphone 12. However, both ears of the user must wear an earphone thereby hindering the user from perceiving the sound from outside. In addition, it is necessary to hold the microphone 12 and move it near to the mouth in order to speak thus causing much inconvenience in use and the microphone 12 will be disturbed by the sound from outside.

Hence, another external listening and speaking device for a walkie-talkie has been developed to obviate these drawbacks. As shown in FIG. 2, the external listening and speaking device includes a microphone 21 and an earphone 22 which are designed to be worn in the ears of an user.

The microphone 21 will be actuated by the acoustic oscillating frequency produced in the ear when speaking.

However, as the previous prior art device, the user must wear the microphone 21 and the earphone 22 thereby hindering the user from perceiving the sound from outside.

Therefore, it is an object of the present invention to provide an improved external speaking and listening device for a walkie-talkie which may obviate and mitigate the above-mentioned drawbacks.

This invention relates to an improved external listening and speaking device for a walkie-talkie.

It is the primary object of the present invention to provide an external listening and speaking device for a walkie-talkie which utilizes an earphone-like microphone to receive and emit messages.

It is another object of the present invention to provide an external listening and speaking device for a walkie-talkie which will not hinder the user from perceiving the sound from outside.

It is still another object of the present invention to provide an external listening and speaking device for a walkie-talkie which is simple in construction.

It is a further object of the present invention to provide an external listening and speaking device for a walkie-talkie which is convenient to use.

Other objects and merits and a fuller understanding of the present invention will be obtained by those having ordinary skill in the art when the following detailed description of the preferred embodiment is read in conjunction with the accompanying drawings wherein like numerals refer to like or similar parts.

FIG. 1 is a perspective view of a prior art walkie-talkie; FIG. 2 is a perspective view of another prior art receiving and emitting device for a walkie-talkie; FIG. 3 is a perspective view of the present invention; and FIG. 4 shows the electrical circuit of the present invention.

Before explaining the present invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.

With reference to the drawings and in particular to FIG. 3 thereof, the present invention mainly comprises an earphone-like microphone 31, a switch 32, and two connectors 33. The earphone-like microphone 31 is connected with the switch 32 via a wire 34. The switch 32 may be a button-type switch or a sound-controlled switch and connected with the two connectors 33 via a wire 34.

The connectors 33 are designed to be connected with a walkie-talkie (not shown). The present invention is characterized in the earphone-like microphone 31 in which are mounted an earphone chip 311 and a microphonoscope 312 connected in parallel with the switch 32. Further, the switch 32 may be provided with an amplifier for making the sound more clear.

When in use, simply wear the earphone-like microphone 31 in an ear of an user and connect the connectors 33 with a walkie-talkie (not shown). Then, by means of the switch 32, the earphone-like microphone 31 can be controlled to work as a receiver or emitter. The principle as to how the switch 32 controls the earphone-like microphone 31 is well known in the art and need not be mentioned here in detail.

Hence, as the earphone-like microphone 31 is worn in an ear of an user, the other ear of the user can still perceive the sound from outside.

Having thereby described the subject matter of the present invention, it should be apparent that many substitutions, modifications and variations of the invention are possible in light of the above teachings.

It is therefore to be understood that the invention as taught and described herein is only to be limited to the extent of the breadth and scope of the appended claim.

Claims

CLAIM:

1. An external listening and speaking device for a walkie-talkie comprising: a switch; an earphone-like microphone in which are mounted an earphone chip and a microphonoscope connected in parallel with said switch; and two connectors connected with said switch via a wire.