Patents by Inventor David M. Fickle

David M. Fickle 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).

  • System for efficiently transferring data between a high speed channel and a low speed I/O device
    Patent number: 4860193
    Abstract: A buffer memory is used to store data from the input/output device arrayed corresponding to the data rate of said input/output data device. A threshold is selected for beginnig an unload cycle of the buffer memory which will permit said buffer memory contents to be completely transferred at the higher channel data rate to the channel during the remaining time additional data is being accumulated in the memory. The threshold selection is adaptive such that subsequent data block lengths are utilized to calculate a new threshold maintaining data transfer rates from the input/output device into the channel at an optimum value.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: August 22, 1989
    Assignee: International Business Machines Corporation
    Inventors: Steven R. Bentley, David M. Fickle, Pamela R. Nylander-Hill