Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2006-06-08
2010-06-08
Lugo, David B (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S344000, C375S376000
Reexamination Certificate
active
07733986
ABSTRACT:
A receiver has a receiving unit including a PLL, a mixer, and a filter, and demodulating unit including a frequency error detector for detecting a frequency error in a signal from a filter. The PLL includes a local oscillator for supplying a local oscillation signal to a mixer, a variable frequency divider for frequency-dividing the local oscillation signal based on a signal from the frequency error detector, and a phase comparator for comparing a signal from the variable frequency divider with a signal from a crystal oscillator. The PLL can reduce the frequency error of the local oscillation signal.
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Japanese Search Report for Application No. PCT/JP2006/311505 dated Aug. 29, 2006.
English translation of Form PCT/ISA/210.
Fujii Takeshi
Ozeki Hiroaki
Lugo David B
Panasonic Corporation
RatnerPrestia
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