H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 1/52 (2006.01) H03M 3/02 (2006.01)
Patent
CA 2042213
RD-19,334 DOUBLE RATE OVERSAMPLED INTERPOLATIVE MODULATORS FOR ANALOG-TO-DIGITAL CONVERSION ABSTRACT OF THE DISCLOSURE A circuit transformation that doubles the effective sampling rate of any switched capacitor oversampled, interpolative modulator, regardless of its order, employs, in each integrator of the modulator, a second input capacitor and switches that operate on alternate clock phases. In addition, two quantizers, instead of one, are employed in the network and are operated on opposite clock phases. Alternatively, the quantizers, can be operated at twice the normal rate if feasible for the particular circuit. The effective operating rate is thereby doubled without any increase in clock rate or circuit speed requirements, resulting in improved analog-to-digital resolution or conversion rate.
Company General Electric
Craig Wilson And Company
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