Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2005-11-17
2009-08-18
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S324000, C375S344000
Reexamination Certificate
active
07577214
ABSTRACT:
A receiver having a frequency-deviation detector which includes: a storage for locating and storing the frequency-domain symbol-signal in a two-dimensional data area on a two-dimensional space corresponding to a carrier frequency and a symbol time; a calculator for calculating the transfer characteristic of a pilot signal; a Fourier transformer for performing two-dimensional Fourier transform on the calculated characteristic to locate the data group after the transform in a two-dimensional Fourier transform data area corresponding to a transmission delay time and path fluctuation frequency; and a calculation portion for calculating the frequency deviation based on the center-of-gravity value.
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Fan Chieh M
Fotakis Aristocratis
Pioneer Corporation
Sughrue & Mion, PLLC
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