Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2006-11-21
2011-12-13
Payne, David C. (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C329S323000, C329S324000, C329S358000, C329S359000, C342S100000, C455S147000, C455S208000, C455S255000, C455S265000, C379S340000
Reexamination Certificate
active
08077818
ABSTRACT:
A radio receiver including a reception processing system that uses discrete-time frequency conversion to acquire a signal having a sampling rate corresponding to a local frequency, wherein the reception characteristic is improved when the reception processing system is applied to a system having a wide reception channel band. The radio receiver comprises an A/D converting part that quantizes a discrete-time analog signal to a digital value to output a received digital signal; a channel selection filtering part that uses a tap coefficient value to perform a digital filtering process of the received digital signal; and a frequency response characteristic correcting part that generates the tap coefficient in accordance with the sampling rate.
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Staszewski, et al. “All-Digital TX Frequency Synthesizer and Discrete-Time Receiver for Bluetooth Radio in 130-nm CMOS,” IFEE Journal of Solid-State Circuits, vol. 39, No. 12, Dec. 2004, pp. 2278-2291.
Abe Katsuaki
Matsuoka Akihiko
Miyano Kentaro
Dickinson Wright PLLC
Dsouza Adolf
Panasonic Corporation
Payne David C.
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