Phase sampling techniques using amplitude bits for digital...

Details Phase sampling techniques using amplitude bits for digital... Phase sampling techniques using amplitude bits for digital...

2006-08-25

2009-12-08

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Receivers

Reexamination Certificate

active

07630458

ABSTRACT:
The present invention uses at least one amplitude bit to assist the phase-sampling technique used in digital receiver architectures. For digital receivers where the Intermediate Frequency (IF) is an integer multiple of the fundamental frequency f0, the present invention provides reduced processing complexity and reduced power consumption. The present invention allows the digital receiver to avoid performing coordinate rotation at high speeds, and replaces such a coordinate rotation with a simple phase subtraction. This replacement of the coordinate rotation allows the receiver to use a less complicated design, and to consume less power as a result.

REFERENCES:
patent: 5020077 (1991-05-01), Rhodes
patent: 5857003 (1999-01-01), Geiger et al.
patent: 5917735 (1999-06-01), Ko
patent: 5982832 (1999-11-01), Ko
patent: 6115429 (2000-09-01), Huang

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