Apparatus and methods for implementation of mathematical...

Details Apparatus and methods for implementation of mathematical... Apparatus and methods for implementation of mathematical...

2005-11-09

2009-06-09

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical analog calculating computer

Particular function performed

C327S346000, C327S349000

Reexamination Certificate

active

07546332

ABSTRACT:
Apparatus and methods for implementation of mathematical functions apparatus providing both speed and accuracy. Disclosed are specific circuits and methods of operation thereof that may be used for the purpose of implementing an exponential function, a squaring function, and a cubic function, using the same basic circuit. By applying a desired weighting function on a current source, an output current provides a value that corresponds exactly to the desired mathematical functions at discrete points, and closely tracks values in between the discrete points. The precision is defined by the selection of a voltage reference for the circuit. Various embodiments are disclosed, as well as embodiments implementing other exemplary functions.

REFERENCES:
patent: 3982115 (1976-09-01), Traa
patent: 5008632 (1991-04-01), Sutterlin
patent: 5060179 (1991-10-01), Sharp
patent: 5065053 (1991-11-01), Chan et al.
patent: 5224064 (1993-06-01), Henry et al.
patent: 6055553 (2000-04-01), Kantabutra
patent: 6184723 (2001-02-01), Frechette et al.
patent: 6215292 (2001-04-01), Maggi et al.
patent: 6366939 (2002-04-01), Kantabutra
patent: 6771111 (2004-08-01), Sheng et al.

Affiliated with

Also associated with

Rating

Apparatus and methods for implementation of mathematical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and methods for implementation of mathematical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and methods for implementation of mathematical... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4111808