Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1983-08-15

1988-04-05

Harkcom, Gary V.

Boots, shoes, and leggings

364715, 364757, 84 101, G06F 1300, G06F 738, G06F 752, G10H 100

Patent

active

047363339

ABSTRACT:
An array of universal processing elements (UPEs) may be interconnected through a switching matrix in response to control words which are in turn produced by a programmed digital computer in response to commands from a keyboard or a data file, thereby routing the outputs of selected UPEs to other UPEs for further processing and/or combining a sound stream in digital form. The matrix is comprised of both local and global conductors, the local ones being available to selected groups of UPEs. Each UPE is implemented as a digital multiplier, preferably with pipelining, and each UPE is comprised of a plurality of stages, preferably implemented with an adder for computing the sum of a plus the Boolean logic function [b.multidot.m+d.multidot.m] and a multiplexer for forming the function [b.multidot.+d.multidot.m], where a, b, d and m are bits of the respective two's complement number A, B, D and M, whereby the entire array of stages in a UPE computes A+[B.times.M+D.times.(1-M)].

REFERENCES:
patent: 3806714 (1974-04-01), Otsuka et al.
patent: 3885141 (1975-05-01), Kieburtz
patent: 3956622 (1976-05-01), Lyon
patent: 4041461 (1977-08-01), Kratz et al.
patent: 4065808 (1977-12-01), Schomberg et al.
patent: 4194425 (1980-03-01), Kitagawa
patent: 4257099 (1981-03-01), Appelt
patent: 4327418 (1982-04-01), Kishi
patent: 4398176 (1983-08-01), Dargel et al.
patent: 4400768 (1983-08-01), Tomlinson
patent: 4507748 (1985-03-01), Cotton
R. F. Lyon, Two's Complement Pipeline Multipliers, Concise Papers, IEEE Transactions on Communications, Apr. 1976, pp. 418-425.
R. K. Richards, Arithmetic Operations in Digital Computers, D. Van Nostrand Company, Inc., 1955, pp. 303-311.
Robert Steven Ledley, L. S. Rotolo, James Bruce Wilson, Digital Computer and Control Engineering, McGraw-Hill Book Co., Inc. 1960, pp. 256-262.
Richard F. Lyon, A Bit-Serial VLSI Architectural Methodology for Signal VLSI System Design Area, Xerox Palo Alto Research Center, 3333 Coyote Hill Road, Palo Alto, Calif. 94304, pp. 131-140.

Affiliated with

Also associated with

Rating

Electronic musical instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic musical instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic musical instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2238217