Reduced size phase-to-amplitude converter in a numerically contr

Details Reduced size phase-to-amplitude converter in a numerically contr Reduced size phase-to-amplitude converter in a numerically contr

1987-10-22

1989-08-08

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 102

Patent

active

048559466

ABSTRACT:
A numerically controlled oscillator employing a 1/2 least significant bit (LSB) phase offset and a negative 1/2 LSB amplitude offset of data samples in memory devices for improved quadrant replication. Also, fine values are added or subtracted to the coarse values further reducing the amount of data needed in memory and further reducing the size of the phase-to-amplitude converter.

REFERENCES:
patent: 4482974 (1984-11-01), Kovalick
patent: 4486846 (1984-12-01), McCallister et al.
patent: 4536853 (1986-08-01), Kawamoto et al.
patent: 4583188 (1986-04-01), Cann et al.

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