Patent ID: 6628784
Filing Date: 2003-09-30
Classification: H01Q,H04B,H04M

Abstract:
Cellular telephone (1) with a device to protect against radiation generated during its use, of the type comprising a speaker element (3); a microphone (4); a keypad (12); a screen (17) and a casing (5), the said speaker element, the said microphone, the said screen and the said keypad forming a fixed group (7) of elements, or personal communication group, solid to the casing (5) of the cellular telephone (1), all this adapted in such a manner that during conversation, the personal communication group (7) can be manipulated by the user contiguous to the same, spaced apart from any microwave emitter a distance sufficient so that the power density of the radiation energy that reaches the personal communication group (7), and therefore the user, is less than a predetermined maximum value, maintaining communication in a cordless fashion, characterised in that it comprises a device for receiving electromagnetic radiofrequency waves and/or microwaves; a device for emitting electromagnetic radiofrequency waves and/or microwaves and an antenna (2) forming a detachable group (6, 16) of elements, or radiation receiver-emitter group, which is provided with a user's handle (9), susceptible of being distanced apart from the personal communication group (7) and communicating with the later either in a cordless fashion or by a cable (8), the handle being telescopically extendable so that it can be held in the user's hand at a distance therefrom greater than 0.08 or 0.12 meters from the radiation receiver-emitter group, and the said radiation receiver-emitter group (6) being able to be removably inserted in a snug manner in a housing provided for that purpose in the casing (5), all this adapted in such a manner that during communication, the radiation receiver-emitter group can be distanced from the personal communication group (7), which is susceptible of being distanced a sufficient distance apart so that the power density of the radiation energy that reaches the personal communication group, and therefore the user, is less to the said predetermined value, maintaining communication between the radiation receiver-emitter group and the personal communication group either through the said cable (8) or wirelessly.