The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2003
Filed:
Mar. 27, 2000
Yasuko Onodera, Kawasaki, JP;
Kenichiro Sakai, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A control apparatus with a window control function including a distance computation unit for computing a signed n-bit distance as a result of subtraction of a second sequence number cyclically updated to vary like a modulo-N number from a first sequence number also cyclically updated to vary like a modulo-N number where N is a positive integer greater than 1 and the nth power of 2 is greater than N(2 >N), and a lowest-order-bit extraction unit for extracting m lowest-order bits of the distance where the mth power of 2 is equal to N(2 =N). The control apparatus further includes a distance judgment unit for forming a judgment as to whether or not the first sequence number is within a window set with the second sequence number used as a reference by comparison of the m lowest-order bits of the distance extracted by the lowest-order-bit extraction means with a size of the window.