Discrete cosine transformation circuit

Details Discrete cosine transformation circuit Discrete cosine transformation circuit

1997-03-18

1999-01-19

Mai, Tan V.

Boots, shoes, and leggings

364827, G06G 702, G06G 719

Patent

active

058620702

ABSTRACT:
A high-speed discrete cosine transformation circuit includes the one-dimensional input signals x(0) to x(7) being input in parallel to the positive input terminals "+" or the negative input terminals "-" of eight neural operation units (NOU) 11 to 18 through capacitors d0 to d6. In each NOU 11 to 18, input signals x(0) to x(7) are added and subtracted. Input signals x(0) to x(7) are multiplied beforehand by the coefficient in proportion to the capacities of capacitors d0 to d6 which are connected to NOU 11 to 18. Thereafter, discrete cosine transforming coefficients y(0) to y(7) are output. A two-dimensional discrete cosine transformation circuit is realized by using the one-dimensional discrete cosine transforming circuit.

REFERENCES:
patent: 4156284 (1979-05-01), Engeler
patent: 4156923 (1979-05-01), Lampe
patent: 4161785 (1979-07-01), Gasparek
patent: 5166896 (1992-11-01), Jeong et al.
patent: 5187680 (1993-02-01), Engeler
P.R. Chang et al., "A High-Speed Neural Analog Circuit for Computing the Bit-Level Transform Image Coding", IEEE Transactions on Consumer Electronics, vol. 37, No. 3, Aug. 1991, pp. 337-342.
K. Moon et al., "Proceedings of the Custom Integrated Circuits Conference", Institute of Electrical and Electronics Engineers, May 1990, pp. 2671-2674.
W.E. Engeler et al., "Matrix Multipliers for Calculating Orthogonal Transforms", IEEE International Conference on Solid State Circuits, Feb. 1979, pp. 72-73.

Affiliated with

Also associated with

Rating

Discrete cosine transformation circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1251940