Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2004-06-14
2008-10-14
Mai, Tan V (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
Reexamination Certificate
active
07437391
ABSTRACT:
In one embodiment, the present invention is directed to a numerically controlled oscillator. The numerically controlled oscillator comprises: a phase accumulator for receiving an input digital word; and a phase to amplitude converter that is operatively coupled to the phase accumulator to receive a first phase signal and a second phase signal, the phase to amplitude converter calculating a sine value and a cosine value of each of the first and second phase signals, the phase to amplitude converter generating a summation of (i) a product of the sine value of the first phase signal and the cosine value of the second phase signal and (ii) a product of the sine value of the second phase signal and the cosine value of the first phase signal.
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Agilent Technologie,s Inc.
Mai Tan V
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