Method and apparatus for conversion of radio frequency (RF)...

Details Method and apparatus for conversion of radio frequency (RF)... Method and apparatus for conversion of radio frequency (RF)...

2007-01-16

2007-01-16

Anderson, Matthew (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

C455S208000, C455S209000, C455S309000, C455S312000

Reexamination Certificate

active

10486830

ABSTRACT:
An inexpensive, high-performance, fully-integrable, multi-standard transceiver with a topology including: an active mixer, followed by a high pass filter, and a passive mixer. The input signal is modulated up, or demodulated down, using a pair of complementary, aperiodic mixing signals. The use of aperiodic mixing signals allows a fully-integrated transceiver to be built. Embodiments of the active mixer include those having electrically-adjustable performance and allowing multiple RF signal inputs. This allows the topology to be employed in multi-band, multi-frequency applications, while still providing high performance.

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patent: WO 0117120 (2001-03-01), None

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