Patents by Inventor Adrian Stoica

Adrian Stoica has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6526556
    Abstract: A method for evolving a circuit comprising configuring a plurality of transistors using a plurality of reconfigurable switches so that each of the plurality of transistors has a terminal coupled to a terminal of another of the plurality of transistors that is controllable by a single reconfigurable switch. The plurality of reconfigurable switches being controlled in response to a chromosome pattern. The plurality of reconfigurable switches may be controlled using an annealing function. As such, the plurality of reconfigurable switches may be controlled by selecting qualitative values for the plurality of reconfigurable switches in response to the chromosomal pattern, selecting initial quantitative values for the selected qualitative values, and morphing the initial quantitative values. Typically, subsequent quantitative values will be selected more divergent than the initial quantitative values. The morphing process may continue to partially or to completely polarize the quantitative values.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: February 25, 2003
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Adrian Stoica, Carlos Harold Salazar-Lazaro
  • Publication number: 20020038326
    Abstract: Apparatus, methods, and computer program products are provided for generating a second set of equations requiring reduced numbers of computations from a first set of general equations, wherein each general equation defines coefficients in terms of a set of samples and a plurality of functions having respective values. A first set of tokens is initially assigned to the plurality of functions such that every value of the functions that has a different magnitude is assigned a different token, thereby permitting each general equation to be defined by the set of samples and their associated tokens. Each general equation is then evaluated and the samples having the same associated token are grouped together. A second set of tokens is then assigned to represent a plurality of unique combinations of the samples. The second set of equations is then generated based at least on the first and second sets of tokens.
    Type: Application
    Filed: June 11, 2001
    Publication date: March 28, 2002
    Inventors: Walter Eugene Pelton, Adrian Stoica
  • Publication number: 20010051966
    Abstract: The present invention provides apparatus, methods, and computer program products for providing coefficients of a function representative of a signal. In one embodiment, the apparatus, methods, and computer program products of the present invention, taking advantage of the independence of samples, provide complete sets of coefficients of the function as each sample is received and corrects the updated coefficients for accuracy by applying a rotating reference system. As such, the apparatus, methods, and computer program products of the present invention are capable of providing accurate coefficients with decreased latency. In another, embodiment, the apparatus, methods, and computer program products of the present invention use learning models to derive complete sets of coefficients of functions as each sample is received.
    Type: Application
    Filed: February 26, 2001
    Publication date: December 13, 2001
    Inventors: Walter E. Pelton, Adrian Stoica
  • Patent number: 5023892
    Abstract: A system is provided for detecting and correcting signal distortion in a received digital signal which comprises a series of pulses whose parameters are defined by transitions in the amplitude of the signal pulses. The device of the invention includes components which sample the signal pulse values a predetermined number of times, a variable length shift register having a variable number of memory cells for selectively storing and retrieving the sampled signal values, a variable frequency clock and provision of synchronizing the reference clock with the sampled signal pulses.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: June 11, 1991
    Assignee: Printer Systems Corporation
    Inventor: Adrian Stoica