Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2007-12-31
2011-11-22
Phu, Sanh (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S317000, C455S310000, C455S296000, C455S313000, C327S359000, C327S355000, C327S113000
Reexamination Certificate
active
08064869
ABSTRACT:
The present invention discloses a mixer comprising with an input stage (100) for receiving and amplifying input signals (VINP, VINN) and an output stage (300) for outputting output signals (Voutp, Voutn). A switching stage (200) is coupled between the input stage (100) and the output stage (300), the switching stage (200) mixing the amplified input signals with a local oscillator signal (vlop, vlon) to produce the output signals (Voutp, Voutn) at the output stage (300). An RC circuit (cop, rop; con, ron) is connected to the output stage (300) and adapted to move the pole of the output signals.
REFERENCES:
patent: 6292047 (2001-09-01), Traylor
patent: 6335651 (2002-01-01), Fayyaz
patent: 6535725 (2003-03-01), Hatcher et al.
patent: 7554381 (2009-06-01), Belot et al.
Bever Hoffman & Harms LLP
Harms Jeanette S.
Phu Sanh
Synopsys Inc.
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