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:
Jan. 08, 2008
Filed:
Jun. 18, 2004
Ken Umeno, Tokyo, JP;
Ken Umeno, Tokyo, JP;
Abstract
A UWB wireless communicating system is provided. When a process of the system is started, an initial value xis set to a storing portion. An output of the storing portion is supplied to a mapping portion that performs a calculation using a P-th order Chebyshev polynomial as a map. In addition, the output of the storing portion is returned to the storing portion. A generated chaotic sequence is stored in a pulse interval converting portion. The pulse interval converting portion converts a linear sum G(x) of the Chebyshev polynomial into a pulse interval value t. An output of the pulse interval converting portion is supplied to a pulse output portion. A pulse sequence having a pulse interval tinto which the value of a liner sum G(x) has been converted is output. The output pulse sequence is supplied to the UWB wireless communicating system.