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. 19, 2011
Filed:
Jul. 20, 2009
Hideaki Tamai, Kanagawa, JP;
Hideaki Tamai, Kanagawa, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
N channels of encoded data are added into added data, which is compared with a first threshold of 2−A and a second threshold of 2−1, where M is the number of the bit positions of the binary representation of N and A is defined by 2−(N+1). When the added data is less than the first threshold, it is selected. When the added data falls between the first and second thresholds, inclusive, either the added data or shifted data, obtained by adding A to the added data, is selected. When the added data exceeds the second threshold, the shifted data is selected. Based on output data representing the values of the respective bit positions of the binary representation of the selected data, the k-th output data, where k is a natural number less than M, is amplified into k-th amplified data having an amplitude level of 2, and the M-th output data is amplified into M-th amplified data having an amplitude level of 2−A. The first to M-th amplified data are multiplexed into a CDM signal.