Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Reexamination Certificate
2005-12-27
2005-12-27
Nguyen, Lee (Department: 2682)
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
C455S277100, C455S121000, C455S123000, C455S575700, C455S063400, C455S067110
Reexamination Certificate
active
06980782
ABSTRACT:
An antenna device for transmitting and receiving radio frequency waves, installable in a communication device includes an antenna structure switchable between antenna configuration states. Each state is distinguished by a set of radiation parameters, such as resonance frequency, input impedance, bandwidth, radiation pattern, gain, polarization, and near-field pattern. A switching device selectively switches the structure between the states. The antenna device includes a first receiver which receives a first measured operation parameter indicative of quality of transmission of radio frequency waves by the antenna structure, and a second receiver which receives a second measured operation parameter indicative of quality of reception of radio frequency waves by the structure. The antenna device includes a controller which controls the switching device, and selective switching of the antenna structure between the states, based on the first and second measured operation parameters, to improved transmission and/or reception quality.
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Braun Christian
Edvardsson Olov
Eriksson Leif
AMC Centurion AB
Nguyen Lee
Persino Raymond
Volentine Francos & Whitt PLLC
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