WO2002067553A1

WO2002067553A1 - Mobile phone with separable handset

Info

Publication number: WO2002067553A1
Application number: PCT/IB2002/000497
Authority: WO
Inventors: Donato Trivigno; Nicola Sabatino
Original assignee: Donato Trivigno; Nicola Sabatino
Priority date: 2001-02-20
Filing date: 2002-02-19
Publication date: 2002-08-29
Also published as: ITPZ20010001U1

Abstract

A mobile phone incorporating a handset permitting use in the customary way and by separating the handset. In this case, the central body and the handset are connected by means of a cable, which allows the audio signal to pass through.

Description

MOBILE PHONE WITH SEPARABLE HANDSET TECHNICAL FIELD

This invention basically concerns a mobile communicating device. It specifically concerns a mobile phone with a separable handset perfectly integrated into its structure. All mobile phones must have a microphone, preferably located near the base, and an earphone, located near the upper part in order to operate. The position of these devices is dictated by their need to be positioned respectively near the mouth and the ear of the user, so that the sound waves emitted by the mouth are more easily converted into electrical impulses by the microphone and, vice versa, as regards the earphone, so that the sounds produced by it are more easily and clearly heard. The current position of these devices thus means that the mobile phone has to be brought into contact with the ear.

The negative effects of the radio frequency fields produced by a mobile phone are well known.

The telephone described below allows the earphone and the microphone to be separated when necessary so that a phone call can be made without the user of the phone being in direct contact with those devices inside the telephone which produce and radiate radio frequency fields.

BACKGROUND ART Devices which, once applied externally to mobile phones, should reduce the negative effects of radio frequency fields are well known: however, the effectiveness of these devices has never been proved. Much more practically, the users of mobile phones, in an attempt to reduce the risks deriving from prolonged exposure to radio waves, use other devices initially designed to allow a person to talk to another while keeping their hands free.

One of these devices consists of the so-called hands free kit, that is an accessory to be applied to the telephone consisting of a microphone and a device for reproducing the sound which enters an ear, connected to the telephone with a cable: this means that the phone itself can be kept away from the head of its user.

The effectiveness of this device has, however, never been proved. Indeed, introducing the sound reproduction device into the ear may, according to recently performed studies, even heighten the negative effects of the radio waves because they are intercepted by the connecting cable and radiated directly inside the ear. All the same, it is an awkward accessory to transport, although it is small.

Another well-known device is the so-called hands free mode, which makes it possible to speak at a distance from the phone. The problem with this is that it cannot be used outside or in particularly noisy places. Moreover, it does not allow confidential phone calls to be made.

DISCLOSURE OF THE INVENTION

The aim of this invention is that of providing a mobile phone offering a handset integrated with the phone itself.

A further aim of the invention is that of distancing the devices generating and radiating the radio waves from the body of the mobile phone user, thus reducing the negative effects of the radio frequency fields.

Another aim is that of allowing the phone keypad to be used while a conversation is in progress, in order to record numbers in the directory or to use WAP and fax functions.

Finally the last, but by no means least important aim, is that of eliminating the awkwardness of the size of the traditional hands free kit. These and other aims are attained by the mobile phone indicated in this invention and described below with the aid of the enclosed table of drawings in a preferred design not limited by further developments to the patent.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 Illustrates a mobile phone with the handset wound up;

Fig. 2 Illustrates a mobile phone with the handset unwound; Fig. 3 Illustrates the phone with partially removed parts so that the automatic device for rewinding the connecting cable can be seen. In a preferred design such as the one illustrated in figure 1, the mobile phone consists of a central unit 1 including the circuits for receiving and transmitting the radio signal, the aerial, the keypad and the display, a handset 2 perfectly integrated in the design of the telephone and a device 7 for automatically rewinding the connection cable for transmitting the audio signals. When connected to the central unit 1, the handset 2 allows a phone conversation like in a normal phone since the earphone 3 and the microphone 4 are positioned in the same area of the same devices present on the well-known mobile phones.

When the handset is separated from the central unit 1 by means of the release button 5, it can be used like a normal handset of a normal telephone.

The analogue signal is sent to the handset by means of a cable wound on a reel which rewinds automatically. In another execution, the electrical connection between the central unit 1 and the handset 2 is ensured by means of an infrared port, by a radio frequency signal or by further devices with the same aim.

Claims

CLAIMS ) A mobile phone including a central unit (1), a display, a series of internal hardware devices, firmware, characterised by the fact that the earpiece and the microphone can be easily separated from the central unit. ) A mobile phone as claimed in claim 1, characterised by the fact that the handset is integrated completely in the design of the phone itself. ) A mobile phone as claimed in the previous claims, characterised by the fact that the electrical connection between the central unit (1) and the handset (2) is ensured by a cable (6) which is rewound on an internal winding device to the central unit (1). ) A mobile phone as claimed in the previous claims, characterised by the fact that the handset can be removed from the central unit (1) by pressing a button (5). ) A mobile phone as claimed in claims 1 and 2, characterised by a handset connected to the central unit by means of an infrared port or by means of another device with a similar function.