Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2005-09-20
2005-09-20
Vuong, Quochien B. (Department: 2685)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S090300, C455S128000, C455S575500
Reexamination Certificate
active
06947764
ABSTRACT:
A device for locally shielding or blocking a user from close proximity electromagnetic fields emitted by a wireless transmit/receive electronic equipment antenna22such as a cellular telephone. The device includes a wearable garments such as a baseball cap10, electronic carrying pouch110, fan210, 250, 410,eyeglass610, or screens, joined with having EMI/RFI material properties that is specifically worn by the user or placed between the user and the electromagnetic field emanating wireless antenna source22. It serves to provide as a electromagnetic field shield, either reflective, absorptive, or dissipative behavior in nature, from an direct line-of-sight electromagnetic field radiating from a wireless device antenna22. The effective shielding area is determined by the shielding device dimensions, the direct line-of-sight electromagnetic field signal antenna transmission behavior and the placement of the shielding device located between the user local human body sensitive tissue area and the wireless transmit/receive electronic equipment antenna22, as solutions for opened-form design method shielding which serves to minimize the shielding degradation effects and sensitivity interaction effects on normal non-blocked electromagnetic fields antenna signal transmission operation.
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Carillo James S.
Carillo, Jr. Juan C.
Vuong Quochien B.
Wu Charles C.H.
Wu & Cheung, LLP
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