Apparatus and method for frequency division and filtering
US8606836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2010 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jul 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J1/05
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.