The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 1991
Filed:
Sep. 06, 1989
Howard C Anderson, Tempe, AZ (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
A resistive network is responsive to a spatial vector formed by sampling an input signal for providing the simultaneous complex transformation thereof at a plurality of outputs. A matrix representation of the sum of products estimation of the complex transform provides the connection scheme and the individual values for the resistors comprising the resistive network. These resistors are interconnected in a meshwork of first and second conductors with a predetermined correspondence between the resistor network and the elements of the matrix of the sum of products estimation. Inverters are coupled to predetermined ones of the plurality of first conductors for inverting the polarity of predetermined elements of the spatial vector of the input signal wherein the predetermined ones of said plurality of first conductors are identified from the matrix of the sum of products estimation. In the transformation, the spatial vector of the input signal is applied to the plurality of first conductors. The predetermined connection scheme and the predetermined values of the resistive network converts the spatial vector of the input signal to a plurality of signals flowing through the plurality of second conductors for providing a spatial vector output signal proportional to the complex transformation of the input signal.