Patents by Inventor Scott E. Lloyd

Scott E. Lloyd 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: 5951628
    Abstract: A method and system for a convolution operation in a digital signal processor (DSP) are provided. The convolution operation is performed in a logarithmic number system (LNS) domain. The DSP includes a plurality of processing elements that executes the convolution in a highly parallel fashion. The method can be implemented as a software program that directs a LNS based DSP to execute the convolution operation.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: September 14, 1999
    Inventors: ShaoWei Pan, Scott E. Lloyd
  • Patent number: 5802522
    Abstract: In a method and system for storing a plurality of data blocks in a memory device, blocks of data elements are stored in a two-dimensional address space such that blocks overlap in the address space. The data elements may be digital words which represent exponents of a polynomial expansion. An overlapping data block is segmented into sub-blocks which are separated by null regions. Common data elements that are shared among the blocks are non-redundantly stored in the memory device.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: September 1, 1998
    Assignee: Motorola, Inc.
    Inventors: Scott E. Lloyd, Shay-Ping T. Wang
  • Patent number: 5737768
    Abstract: A method and system for storing a plurality of data blocks in a memory device is disclosed. The method stores two blocks of data elements by assign different accessing methods to the two data blocks. Three example methods of accessing the data blocks are provided by the method. The first method allows data elements of a data block to be accessed by columns in the address space, the second allows data elements to be accessed by rows in the address space, and the third allows data elements to be accessed along diagonals in the address space. The data elements may be digital words which represent exponents of a polynomial expansion.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: April 7, 1998
    Assignee: Motorola Inc.
    Inventor: Scott E. Lloyd
  • Patent number: 5697681
    Abstract: An anti-lock braking system for a vehicle having a plurality of wheels, and a braking system that includes a brake for braking at least one of the plurality of wheels and a brake valve for controlling a braking pressure in the brake in response to a brake valve signal, includes a plurality of wheel speed sensors for generating a plurality of input signals. A polynomial processor, in communication with the plurality of wheel speed sensors, generates a control signal based on a nonlinear polynomial function of the input signal. A post-processor generates the Brake valve signal based on the control signal so as to provide cyclic control of the braking pressure in the brake.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: December 16, 1997
    Assignee: Motorola, Inc.
    Inventors: Sanjar Ghaem, Shay-Ping T. Wang, Scott E. Lloyd
  • Patent number: 5553012
    Abstract: A circuit and method for computing an exponential signal x.sup.g is provided. The circuit includes a logarithm converter which converts an input signal to binary word that represents the logarithm of an input signal x. A first shift register shifts the binary word in a bit-wise fashion to produce a first intermediate value; while a second shift register shifts the binary word in a bit-wise fashion to produce a second intermediate value. The shift registers may be implemented using multiplexers. The shifting operations are equivalent to multiplying the intermediate values by a factor which is a power of two. The first intermediate value is either added to or subtracted from the second intermediate value to produce a combined value. An inverse-logarithm converter converts the combined value to the exponential signal.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: September 3, 1996
    Assignee: Motorola, Inc.
    Inventors: John M. Buss, James D. Dworkin, Scott E. Lloyd, Shao W. Pan, Stephen L. Smith, Shay-Ping T. Wang
  • Patent number: 5548752
    Abstract: A method for storing data in a memory device is provided. The method stores blocks of data elements in a two-dimensional address space such that the blocks overlap in the address space. The data elements may be digital words which represent exponents of a polynomial expansion.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: August 20, 1996
    Assignee: Motorola, Inc.
    Inventors: Scott E. Lloyd, Shay-Ping T. Wang