Patents by Inventor Albert J. Weidner

Albert J. Weidner 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).

  • Page mode comparator decode logic for variable size DRAM types and different interleave options
    Patent number: 5301292
    Abstract: Apparatus for decoding and comparing memory addresses which determines DRAM size and interleave options utilized is disclosed. A row address and bank select bits are decoded and latched and are subsequently compared with the address during the next memory cycle. If the next address matches the address stored in the latch, a "page hit" occurs and the memory cycle is shortened since the addresses during the consecutive memory address will differ only in the column address.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: April 5, 1994
    Assignee: VLSI Technology, Inc.
    Inventors: William K. Hilton, Albert J. Weidner
  • Instruction decoding in data processing apparatus
    Patent number: 4419726
    Abstract: An instruction decoding system for data processing apparatus in which alternative instruction interpretations are made possible through hardware sensing of the operational state of one or more machine elements. In one embodiment, a zero detect unit is used to sense the state of a subroutine stack used in a microprogrammed system, therefore permitting a generic "exit" microcommand to be interpreted either as a "return" or a "decode" depending upon the state of the subroutine stack.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: December 6, 1983
    Assignee: Sperry Corporation
    Inventor: Albert J. Weidner
  • Indirect address computation circuit
    Patent number: 4373182
    Abstract: This invention relates to a system for determining an effective address based upon a calculation performed on address information. Depending upon the result of the calculation firmware or hardware will control further operation of the system.
    Type: Grant
    Filed: August 19, 1980
    Date of Patent: February 8, 1983
    Assignee: Sperry Corporation
    Inventors: Gary E. Schultz, Albert J. Weidner