| 摘要 |
<p>Circuitry and method for adding, subtracting, multiplying and/or dividing a plurality of multi-bit, arbitrarily signed, changeable, coded digital input signals representing numerical values to convert said signals into a single analog output signal of predetermined amplitude having a fixed period but a duty cycle that is proportional to the algebraic sum or product or quotient of said input signals. This is accomplished using indirect digital-to-analog conversion.</p> |
