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:
Jul. 08, 2003
Filed:
Jun. 11, 2001
Hiroshi Itahara, Atsugi, JP;
Anritsu Corporation, Tokyo, JP;
Abstract
In a noise sequence generator, a plurality of memories store plural types of noise sequences that are non-correlated with each other, respectively. A noise sequence readout section reads out the noise sequences stored in the plurality of memories so that the code periods are prime numbers of each other. A sequence-adding section adds the noise sequences read out in parallel from the plurality of memories by means of the noise sequence readout section, thereby outputting the addition result as a series of noise sequences. In a CN controller, a setting section sets a value to determine an amplitude of a digital modulation signal row to a register. A multiplying section multiplies the setting value of the register by the to-be-inputted digital modulation signal row. A CN adding section adds a series of noise sequences outputted from the sequence adding section of the noise sequence generator to an output of the multiplying section, and outputs the addition result.