Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Reexamination Certificate
1998-04-20
2001-07-10
Vo, Nguyen T. (Department: 2682)
Telecommunications
Transmitter and receiver at same station
Having particular housing or support of a transceiver
C455S117000, C455S128000
Reexamination Certificate
active
06259896
ABSTRACT:
TECHNICAL FIELD
The present invention relates to an apparatus for radio communication, such as for example a radiophone.
The popularity of radiophones has been rapidly increasing during the last ten years. At the same time a belief of potential health hazards related to non-ionizing radiation has been increasing. The power radiated by a radiophone is relatively low, typically few hundred milliwatts. On the other hand the antenna means of radiophones are few centimeters from the brain, the hearing organs and the organ of equilibrium. Although a direct heating effect could be left without further consideration it has been suggested that modulated radio frequency radiation induces changes in the electrical status i.e. in the ion balance of nerve cells. A continuous localized exposure to radio frequency irradiation has been suggested to weaken myelin sheets of cells and to eventually lead to an impairment of hearing capability, vertigo etc.. It has been suggested that radio frequency irradiation may stimulate extra growth among supportive cells in the nerve system, which in the worst case it has been suggested could lead to a development of malignant tumor e.g. glioma from supportive cells. Although the consequences, described above have not been scientifically verified, the uncertainty has some effects e.g. by reducing the speed of growth of the market of radiophones.
SUMMARY OF THE INVENTION
The invention avoids the drawbacks of the prior art and reduces the irradiation of the user, especially the brain and the nerve tissues. The invention and corresponding apparatus based thereon are characterized by what is not forth in the characterizing sections of the annexed claims.
REFERENCES:
patent: 3435456 (1969-03-01), Robb, Jr.
patent: 5045637 (1991-09-01), Sato et al.
patent: 5150282 (1992-09-01), Tomura et al.
patent: 5151946 (1992-09-01), Martensson
patent: 5177784 (1993-01-01), Hu et al.
patent: 5335366 (1994-08-01), Daniels
patent: 5336896 (1994-08-01), Katz
patent: 5444866 (1995-08-01), Cykiert
patent: 2022958 (1992-02-01), None
patent: 0 522 538 A2 (1993-01-01), None
patent: 2 240 782 (1991-08-01), None
patent: 59-92629 (1984-05-01), None
patent: 3-238936 (1991-10-01), None
patent: 4-220851 (1992-08-01), None
Shielding Against Electromagnetic—Published in the Mar./Apr. 1979 issue of Plastics Design Forum.
Nokia Mobile Phones Limited
Reising Ethington Barnes Kisselle Learman & McCulloch PC
Vo Nguyen T.
LandOfFree
Device for radio communication does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for radio communication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for radio communication will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2523198