CN2137411Y - Extended phone for radiotelephone - Google Patents

Abstract

The utility model provides an earphone type speaking and listening device with an extension line and a speak and listen changing switch, and can be connected in parallel with a wireless interphone for use by utilizing an adapter plug. An earphone crystal and a capacitor microphone are arranged in the earphone type speaking and listening device, which are connected in parallel on the speak and listen changing switch. When the utility model is in use, the adapter plug is inserted on the wireless interphone, and the earphone type speaking and listening device is used in ears of users. The speak and listen changing switch is used to select to listen or to speak, not only making the utility model have the advantages of hands free wireless interphones or microphones, but making users able to pay attention to the sound conditions near users at any time when listening to the coming messages. The utility model is particularly suitable for special work units, such as military guard, etc.

Description

Extended phone for radiotelephone

The utility model relates to a kind of wireless interspeaker and pays attention to the class device with extending, be specifically related to a kind of earphone-type that is exclusively used in wireless interspeaker and pay attention to the class device, it is characterized in that the sound that provided can reach minimum degree to the influence of user's job in hand and surrounding environment, and then improve user's operating efficiency.

The wireless talkback machine equipment of commonly using at present, all user's job in hand is had a significant impact because of the operational environment to the user reaches, and with traditional with mouth facing to machine or microphone is spoken and change into that the mat earphone is listened to and in user's (by the place, mouth) mode of establishing a microphone on one's body, to solve aforesaid problem in the mode that ear is listened to message against machine.But, still can be subjected to the influence of other noises (car sound, sound of the wind etc.) because microphone is exposed in the external environment, it is very serious to cause the other side to receive condition of poor.The whence just like the novel patent case in No. the 79213455th, Taiwan " wireless interspeaker use sound say device " propose to improve the form that is provided with of microphone, make it to be isolated from the outside, and must with mouth face toward machine or Mike not several, can reach the purpose of intercommunication.The utility model is further improved the spatial shape and the practical usefulness of its structure, to reach user's monaural-hearing and the purpose of awarding words simultaneously, and can be when listening to intercom and transmitting message, at any time take into account dynamic (sound) of noticing its surrounding environment, to bring into play maximum function of the present utility model, improve user's operating efficiency.

Unitary construction of the present utility model comprises that an earphone-type listening device, one pay attention to the class a diverter switch and an adapter plug etc., connect by lead, can use in parallel with wireless interspeaker, it is characterized in that, an earphone crystal and a capacitor microphone are housed in the earphone-type listening device simultaneously, and with to pay attention to the class diverter switch in parallel.During use, the earphone-type listening device is worn in user's ear, mat is paid attention to the class diverter switch and is controlled the function that it is received words and awards words, be parallel on the wireless interspeaker by adapter plug again, can reach the user limit and listen to the message that intercom transmits, and can take into account the situation (sound) of surrounding environment simultaneously, can keep the advantage of hand-free microphone or intercom again and award telephone system not being subjected to the most high-effect of outside noise or sound of the wind interference.

Be further understanding and understanding, shape, structure and the effect thereof of device paid attention to the class in follow-on extension of wireless interspeaker of the present utility model, cooperates the following drawings to be described as follows for an embodiment now:

Fig. 1 illustrates the enforcement illustration of habitual wireless interspeaker;

Fig. 2 illustrates the enforcement illustration of Taiwan No. 79213455 " wireless interspeaker is paid attention to the class device with it ";

Fig. 3 illustrates overall structure figure of the present utility model;

Fig. 4 illustrates main circuit figure of the present utility model.

See also accompanying drawing 1, a kind of known habitual mobile phone type wireless intercom 1(shown in the figure or can be the platform machine), one pair of earphone 11 and a microphone 12 are being extended in parallel connection.Owing to microphone 12 must receive facing to users' mouths and the transmission sound waves, thereby cause necessary handheld microphone 12 of user and mouthful inconvenience, but also can be subjected to the interference of outside noise or sound of the wind with regard to microphone 12.The exploitation and the development of the change creation of structural form are as shown in Figure 2 arranged for this reason.Wherein microphone 21 devices are made shape as earphone 22, during use, microphone 21 and earphone 22 can be worn respectively in two ears of user, microphone 21 and surrounding environment are isolated, avoid being subjected to the interference of outside noise or sound of the wind, more can exempt the inconvenience that handheld microphone 21 and mouth are spoken facing to microphone 21, and by the user in when speech, the acoustical vibration frequency that is produced in the Yu Qier, directly excite microphone 21(to be loaded on microphone in the earphone shape), award the words effect with what reach its expection.

According to above-mentioned device, it all has a common shortcoming in addition, promptly in use, two ears of user will be because of wearing the relation of earphone or microphone, and its respond to ambient sound of gesture weakens, and have influence on the ability that it carries out duties, so above-mentioned shortcoming of the artificial improvement of this reality creation, the whence studies intensively, and has created a kind of brand-new structural form again, as shown in Figure 3.Follow-on extension that wireless interspeaker of the present utility model is used is paid attention to the class device by an earphone-type intercom 31, an intercommunication diverter switch 32(can be push button switch or audio-switch) and adapter plug 33(contain two kinds of earphone and microphone patchplugs) etc. composition, connect by lead 34 therebetween and extend, and but mat adapter plug 33 is parallel to and uses on the wireless interspeaker, it is characterized in that being equipped with simultaneously in the earphone-type listening device 31 an earphone crystal 3 11 and a microphone 312, and be parallel to and pay attention to the class on the diverter switch 32 (or can in this pays attention to the class the housing of diverter switch, establish an audio frequency amplifier, with transmission sound) more clearly; When it uses, system directly wears earphone-type listening device 31 in user's the monolateral ear, the adapter plug 33 of opposite side inserts on the wireless interspeaker, it receives words and the function of awarding words by paying attention to the class diverter switch 32 controls, can reach the message that the user limit listens intercom to transmit, simultaneously can take into account the situation (sound) of surrounding environment, and keep the advantage of this series products in the past.

Claims (1)

1, device is paid attention to the class in the extension used of a kind of wireless interspeaker, and it is mainly constructed and comprises: an earphone-type listening device, is paid attention to the class a diverter switch and an adapter plug etc., is therebetween to be connected by lead to extend, and uses on the wireless interspeaker and can be parallel to;

It is characterized in that: an earphone crystal and a microphone are housed in the earphone-type listening device simultaneously, and are parallel to and pay attention to the class on the diverter switch; When the earphone-type listening device being worn in user's ear and when being connected to adapter plug on the wireless interspeaker, receive words and award words by the control of intercommunication diverter switch, can reach the user can take into account surrounding environment in the message that the limit listens intercom to transmit situation (sound).

Images