Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Generating sinusoidal output
Reexamination Certificate
2006-03-28
2006-03-28
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Generating sinusoidal output
C327S105000
Reexamination Certificate
active
07019567
ABSTRACT:
A sine wave generation circuit for generating a high precision pseudo sine wave without increasing the circuit size including a pulse generation circuit for generating a plurality of pulse signals using an input clock signal as reference and a voltage output circuit for stepwisely changing the voltage level of the output on the basis of a plurality of pulse signals. The voltage output circuit generates a plurality of different coefficients in response to a combination of bit information in a plurality of pulse signals and changes the output of the voltage output circuit in response to a coefficient series obtained when further combining the plurality of generated coefficients, and odd number generation circuits each generating odd number values of ternary-values or more having positive side coefficients and negative side coefficients symmetric about a center coefficient are provided in a plurality of coefficient generation circuits provided in the voltage output circuit.
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Kananen Ronald P.
Le Dinh T.
Rader & Fishman & Grauer, PLLC
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