US PATENT SUBCLASS 341 / 144
.~ Digital to analog conversion

Current as of: June, 1999
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341 /   HD   CODED DATA GENERATION OR CONVERSION

126  DF  ANALOG TO OR FROM DIGITAL CONVERSION {12}
144.~ Digital to analog conversion {10}
145  DF  .~.~> Coarse and fine conversions
146  DF  .~.~> Serial conversion
147  DF  .~.~> Function generator
148  DF  .~.~> Tree structure
149  DF  .~.~> Using magnetic or cryogenic components
150  DF  .~.~> Using charge coupled devices or switched capacitances
151  DF  .~.~> Analog output represents a displacement or force
152  DF  .~.~> With intermediate conversion of digital value to time interval
153  DF  .~.~> Using weighted impedances
154  DF  .~.~> Using ladder network

DEFINITION

Classification: 341/144

Digital to analog conversion:

(under subclass 126) Subject matter wherein information represented by a coded digital signal is converted to a form wherein the information is contained in the amplitude of an electrical signal.