H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 1/18 (2006.01) H03M 1/36 (2006.01)
Patent
CA 2170212
In an adaptive A/D converting device for adaptively converting an input analog signal (Vin) into an output digital signal (Dout), a reference voltage generating unit (11) generates lower and higher limit reference voltage (Vr? , Vrh) with a predetermined difference voltage (Vd) kept therebetween. A main A/D conversion unit (12) converts the input analog signal into an original digital signal (Dor) having a constant quantizing error. A control section (13) controls the lower and the higher limit reference voltages so that the input analog voltage always lies in an observation allowable range defined therebetween. A modifying section (14) modifies the original digital signal into the output digital signal having the constant quantizing error.
Corporation Nec
Smart & Biggar
LandOfFree
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