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. 10, 2013
Filed:
Aug. 25, 2010
Ting-hsuan Chen, Yangmei Township, Taoyuan County, TW;
Gaung-hui Gu, Checheng Township, Pingtung County, TW;
Ying-chiang HU, Bade, TW;
Tsung-min Hsieh, Tainan, TW;
Jun-chao Zhao, Tainan, TW;
Ting-Hsuan Chen, Yangmei Township, Taoyuan County, TW;
Gaung-Hui Gu, Checheng Township, Pingtung County, TW;
Ying-Chiang Hu, Bade, TW;
Tsung-Min Hsieh, Tainan, TW;
Jun-Chao Zhao, Tainan, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An apparatus and method for frequency division and filtering are provided. The apparatus includes a memory unit, an extrema calculation unit, and an envelope calculation unit. The memory unit is for storing sample data. The extrema calculation unit is for outputting and storing a number of maximum values and a number of minimum values to the memory unit according to the sample data. The envelope calculation unit is for calculating a mean envelope according to the maximum values and the minimum values, wherein within a duration when the envelope calculation unit respectively calculates an upper envelope and a lower envelope according to the maximum values and the minimum values, the envelope calculation unit outputs a value of the mean envelope to the memory unit according to a value of the upper envelope and a value of the lower envelope with respect to a corresponding identical address.