Patents by Inventor Edgar R. Macachor

Edgar R. Macachor 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).

  • Partially resettable, segmented DMA counter
    Patent number: 5452432
    Abstract: A direct memory access (DMA) controller (4) utilizes a segmented counter (220). A first, byte counter portion (330) of the counter is initialized with a preselected value and decremented for each byte transfer. After the byte portion of the counter reaches the preselected value it decrements a second, block portion (332) of the counter which is initialized based upon the amount of data to be transferred. When both the byte counter and the block counter reach zero the data transfer is completed.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: September 19, 1995
    Assignee: Chips and Technologies, Inc.
    Inventor: Edgar R. Macachor