Monibittinen digitaalinen kynnyskomparaattori
A multibit digital threshold comparator is disclosed which comprises a source (X) of a multibit digital input signal representing a signed arithmetic value, and a source (T) of a threshold signal. Means (40) are provided for producing a magnitude representative signal. The magnitude representative s...
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| Format: | Patent |
| Sprache: | fin ; swe |
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| Zusammenfassung: | A multibit digital threshold comparator is disclosed which comprises a source (X) of a multibit digital input signal representing a signed arithmetic value, and a source (T) of a threshold signal. Means (40) are provided for producing a magnitude representative signal. The magnitude representative signal produced has either the value of the input signal or that of the ones complement of the input signal depending upon the sign of the value of the input signal. A comparator (30 min ) compares the magnitude representative signal to the threshold signal. The comparator performs one of two comparisons depending upon the sign of the value of the input signal. First, if the value of the input signal is of a first sign, then the comparator produces a signal (39) having a first state if the value of the magnitude representative signal is greater than the value of the threshold signal. Second, if the value of the input signal is of a second sign, then the comparator produces a signal (39) having the first state if the value of the magnitude representative signal is greater than or equal to the value of the threshold value. The comparator produces a signal having a second state otherwise. |
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