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:
Apr. 30, 2013
Filed:
Apr. 28, 2010
Takashi Furuya, Tama, JP;
Masahiro Kuroda, Atsugi, JP;
Kazuhiko Ishibe, Koza-gun, JP;
Anritsu Corporation, Atsugi-shi, JP;
Abstract
An M-sequence generator includes EXCLUSIVE-OR gates feeding back pieces of bit data from m number of series registers to the registers in response to a clock. A period of a cyclic group {(α), (α), (α), . . . } falls within a maximum period (2−1), the group being produced as an element (α) obtained by raising a root α of a polynomial to a specified power value k (k≧2), which have the terms in polynomials of a Galois field GF(2). In a multiplying unit including the gates, pieces of bit data is fed into one end of the multiplying unit in response to the clock while the element (α) is fed into the other end. The multiplying unit performs Galois field multiplication between each piece of bit data and the element (α), the gate supplies the multiplication result as feedback bit data to the respective registers.