Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1984-09-24
1986-07-01
Shoop, Jr., William M.
Communications: electrical
Audible indication
Percussion-type sound producer
340347M, 364746, H03M 112
Patent
active
045982660
ABSTRACT:
A modulo 2.sup.2n -1 adder employing adders which may all be standard binary adders. A first binary adder sums binary input signals a and b to produce a first sum signal in which the n+2 more significant bits represent the integer part of (a+b)/2.sup.2n (i.e., of a+b taken modulo 2.sup.2n). A second binary adder subtracts these n+2 more significant bits from a 2n bit shifted (less significant bits) version thereof for producing a first difference signal which is subtracted from the first sum signal in a third binary adder to produce a binary signal R. The signal R is applied to one input of a fourth binary adder which produces the desired modulo 2.sup.2n -1 signal. A comparator circuit applies a constant (2.sup.2n -1) to a difference input of the fourth binary adder only when R is greater than or equal to this constant.
REFERENCES:
W. K. Jenkins, ICASSP 1978, pp. 804-807, "Residue-to-Analog Conversion".
F. J. Taylor et al., CAS 1981, pp. 1164-1169, "Residue-to-Decimal Converter"; IEEE Transactions.
M. A. Soderstrand et al., 1983 IEEE Trans. CAS-30, pp. 903-907 "RNS D/A Converter".
W. K. Jenkins, IEEE Trans. CAS, vol. 25, 1978, pp. 555-562, "Residue-to-Analog Conversion".
Arora et al., Proc. Fifth Symp. on Computer Arithmetic, "Conversion Scheme in Residue Code" 1981, 5/18-5/19.
M. A. Soderstrand et al., ICAS 1984, pp. 1455-1458, "Pipelined IIR RNS Digital Filters".
Bergmann Saul M.
Cannon Russell A.
GTE Communications Systems Corporation
Shoop Jr. William M.
LandOfFree
Modulo adder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modulo adder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulo adder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1084368