High precision computing with charge domain devices and a pseudo

Details High precision computing with charge domain devices and a pseudo High precision computing with charge domain devices and a pseudo

1993-04-19

1996-02-13

Mai, Tan V.

Boots, shoes, and leggings

364754, G06J 100, G06F 752

Patent

active

054916500

ABSTRACT:
The present invention discloses increased bit resolution of a charge coupled device (CCD)/charge injection device (CID) matrix vector multiplication (MVM) processor by storing each bit of each matrix element as a separate CCD charge packet. The bits of each input vector are separately multiplied by each bit of each matrix element in massive parallelism and the resulting products are combined appropriately to synthesize the correct product. In addition, such arrays are employed in a pseudo-spectral method of the invention, in which partial differential equations are solved by expressing each derivative analytically as matrices, and the state function is updated at each computation cycle by multiplying it by the matrices. The matrices are treated as synaptic arrays of a neutral network and the state function vector elements are treated as neurons. Further, moving target detection is performed by driving the soliton equation with a vector of detector outputs. The neural architecture consists of two synaptic arrays corresponding to the two differential terms of the soliton equation and an adder connected to the output thereof and to the output of the detector array to drive the soliton equation.

REFERENCES:
patent: 4464726 (1984-08-01), Chiang
patent: 4750818 (1988-06-01), Cochran
patent: 5089983 (1992-02-01), Chiang
patent: 5258934 (1993-11-01), Agranat et al.

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