Decoder and method utilizing partial and redundant decoding

Communications: electrical – Audible indication – Percussion-type sound producer

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307465, H03K 1324

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active

044384270

ABSTRACT:
Decoder and method utilizing logic circuitry for decoding multi-bit digital signals. An input decoder decodes subsets of the input signals to provide a plurality of intermediate signals which are selectively combined to provide output signals which represent a desired decoding of the input signals. The intermediate signals are applied to generally parallel bus lines which extend centrally of the substrate on which the decoder is constructed. The logic circuits are arranged in blocks along both sides of the bus lines, with all of the bus lines extending past all of the logic blocks, and conductors extending transversely of the bus lines carry the appropriate intermediate signals from the bus lines to the logic blocks.

REFERENCES:
patent: 3593317 (1971-07-01), Fleisher
patent: 3691554 (1972-09-01), Marschall
patent: 4090190 (1978-05-01), Rostkovsky
Fleisher, "IBM Technical Disclosure Bulletin", vol. 15, No. 8, Jan. 1973, pp. 2510-2511.

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