Patents by Inventor Yasuhiro Makakura

Yasuhiro Makakura 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).

  • Arithmetic device having a plurality of partitioned adders
    Patent number: 5198993
    Abstract: Input data are separated into a plurality of partitioned input data. A plurality of partitioned incrementers receive a plurality of partitioned input data respectively, and each include an adder adding "1" to partitioned input data, and a data selector selecting one of the partitioned data and output data from the adder in response to a selection signal. An n-th group is defined by a (2n-1)-th partitioned incrementer and a 2n-th partitioned incrementer, where "n" denotes natural numbers between 1 and a given number equal to a total number of groups.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 30, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Yasuhiro Makakura