WO1999027656A1

WO1999027656A1 - A bio-compatible cellular telephone apparatus

Info

Publication number: WO1999027656A1
Application number: PCT/IT1998/000333
Authority: WO
Inventors: Francesco Colli
Original assignee: Francesco Colli
Priority date: 1997-11-26
Filing date: 1998-11-23
Publication date: 1999-06-03
Also published as: ITRE970094A1; IT1298000B1; ITRE970094A0; AU1576499A

Abstract

In the cellular telephone apparatus, the antenna is positioned near the microphone, instead of near the loudspeaker. This results in a reduction in the value of the electromagnetic field emitted by the apparatus in the region of the head and the brain, thus reducing the risks of biological damage.

Description

Description A Bio-Compatible Cellular telephone Apparatus

Technical Field

The present invention relates in general to receiving and transmitting auricular apparatus, and in particular to a cellular telephone, in which there is a substantial reduction in the risk of radio-electric emission damage to the human organism, with particular reference to brain cell damage. Background Art

Although negative interference between radioelectric energy emissions and cells in the human organism has yet to be proven, many authoritative sources have expressed the opinion that such radioelectric emissions may have an adverse effect on cell structure. This opinion is transformed into reality where the duration of these emissions is prolonged (for example, several hours per day) and the power emitted by the transmitter is high.

In order to limit this risk, the prior art teaches auricular radioelectric transceiver apparatus, such as cellular telephones, which have inside them a screening device in the region of the auricular part so as to limit the possible physiological damage associated with the emission of radioelectric energy towards the skull and the brain.

In other cases, attempts have been made to mount the antenna inside the body of the cellular phone so as to distribute the irradiated radioelectric energy over the entire surface of the telephone, therefore limiting the energy irradiated towards the cerebral region.

In any case, the failure to achieve an effective reduction in the electromagnetic energy irradiated in the vicinity of the brain has led to a reduction in the efficiency and sensitivity of the telephone apparatus, leaving the problem unresolved in any realistic sense of the expression.

The object of the present invention is to provide a transceiver apparatus for auricular use, such as for example a cellular telephone apparatus, in which the electromagnetic energy irradiated towards the brain of the user is minimal and in which, at the same time, the efficiency and functional reliability of the apparatus is not reduced.

Disclosure of Invention

The object is achieved by positioning the antenna closer to the microphone than to the auricular loudspeaker.

The invention will emerge more clearly from the illustration of an embodiment, described hereinbelow with the aid of a figure, in which:

Figure la illustrates an example of use of a known cellular telephone as it is currently designed; Figure lb shows an example of use of a cellular telephone designed according to the invention;

Figure lc shows the cellular telephone of the invention

With reference to the figures, 1 denotes the body of a cellular telephone, 2 the microphone thereof and 3 the loudspeaker. 4 denotes the antenna which, in the illustrated example, is of the type which can be extracted by pulling out.

5 denotes the skull area of the person using this cellular telephone in the correct manner.

It can be seen in figure la that the antenna 4 in the cellular telephones designed in accordance with the technology used hitherto is very close to the skull area 5, in some cases to the point where it is touching it, so that normally, in the prior art, the distance between antenna 4 and skull 5 is only a few centimetres. Figure lb clearly shows that when the antenna 4 is positioned in the vicinity of the microphone 2, the distance between it and the skull 5 of the user increases considerably, reaching values of the order of 15-20 cm. Fig. lc shows an embodiment of a cellular phone according to the invention, in which the antenna 4, and in particular its base, is arranged in the vicinity of the microphone 2, the loudspeaker 3 being situated at an opposite end of the apparatus.

Experiments carried out by applicant have shown that, though there is a substantial reduction of the electromagnetic field in the region of the skull and the head in general, the effect on the strength of the signals emitted and received by the apparatus appears to be negligible.

A further advantage of the invention is the greater ease with which the antenna can be pulled out and reinserted at the start and at the end of the conversation since it is located close to the free hand of the user. The invention may in practice be subject to possible constructional variations, for example with the antenna being foldable instead of extractable; or with the microphone being located in the vicinity of the antenna body or even an extremity thereof, in particular in the case of apparatus with an extendable configuration for the microphone housing, such as a flick-opening or an extension of other type.

Claims

Claims.

1). A bio-compatible cellular telephone apparatus, comprising: an antenna (4); a microphone (2); and a loudspeaker (3); wherein the antenna (4) is located closer to the microphone (2) than to the loudspeaker (3).

2. A bio-compatible cellular telephone apparatus, wherein a base end of the antenna (4) is located in close proximity to the microphone (2).

3. The bio-compatible cellular telephone apparatus of claim 2,wherein during operation of said telephone, the antenna (4) is extended in a direction which progresses away from a location of the loudspeaker (3).