Threshold decoder

Details Threshold decoder Threshold decoder

1976-02-25

1978-05-02

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

235310, G06F 500

Patent

active

040878112

ABSTRACT:
Disclosed is a decoder which receives a number of coded binary-weighted input signals and which provides, on a plurality of output signal lines, a threshold related to the coded value of the input signals. The threshold is defined at the output as a consecutive sequence of output signal lines having a binary 0 value on one side of the threshold, and a consecutive sequence of output signals on the other side of the threshold having a binary value of 1. In one embodiment, a single level of binary logic receives n input signals and produces a threshold on m = 2.sup.n -1 output signal lines. A second embodiment receives n input signals which are divided into groups of signals, each group of which is applied to an intermediate threshold generator, the outputs of which are combined in a final level to provide m output signals. A further embodiment of the threshold decoder receives two groups of input signals which are combined in a first level of intermediate threshold generators, the outputs of which are then combined in a final stage which may produce more than one threshold on the output signal lines. Another further embodiment of the threshold decoder discloses a plurality of groups of input signal lines, combined in a plurality of intermediate threshold generators, the outputs of which are combined in a final level of logic to produce, selectively, a like plurality of thresholds on the output signal lines.

REFERENCES:
patent: 3217147 (1965-11-01), Chapman
patent: 3506815 (1970-04-01), Stone
patent: 3576562 (1971-04-01), Sakic
patent: 3618047 (1971-11-01), Hertz
patent: 3925780 (1975-12-01), Van Voorhis
patent: 4016555 (1977-04-01), Tyrrel

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