Telecommunications – Transmitter and receiver at separate stations – Frequency or phase modulation
Reexamination Certificate
2011-07-19
2011-07-19
Trinh, Sonny (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Frequency or phase modulation
C455S061000, C455S102000
Reexamination Certificate
active
07983617
ABSTRACT:
Aspects of a method and system for transmitting multiple channels on FM bands may include generating from one or more baseband signals, a plurality of radio frequency transmission signals each at a different radio frequency, wherein the one or more baseband signals comprise an in-phase signal component and/or a quadrature signal component. Suitable combinations of the one or more baseband signals may be modulated in a radio frequency transmission chain that may comprise intermediate frequency modulation and radio frequency modulation. The suitable combinations of the one or more baseband signals may be weighted sums. The plurality of radio frequency signals may each carry distinct information. One of the plurality of radio frequency signals may be centered at a frequency f1+f2and another one of said plurality of radio frequency signals may be centered at a frequency f1−f2, where f1and f2are frequencies.
REFERENCES:
patent: 5457424 (1995-10-01), McGinn et al.
patent: 6714765 (2004-03-01), Kimppa
patent: 7130596 (2006-10-01), Ramachandran
Broadcom Corporation
McAndrews Held & Malloy Ltd.
Trinh Sonny
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