| Title: | Low pass continuous adjustable filter and filtering method | ||
| Application Number: | 200610130270 | Application Date: | 2006.12.15 |
| Publication Number: | 1976224 | Publication Date: | 2007.06.06 |
| Approval Pub. Date: | Granted Pub. Date: | ||
| International Classifi-cation: | H03H17/02 | ||
| Applicant(s) Name: | Tianjin Univ. | Address: | |
| Inventor(s) Name: | Guo Jichang;Li Qiang;Li Xiangping | ||
| Attorney & Agent: | jiangtian hua | ||
|
|
|
||
Abstract: |
|||
| A low-pass continuous adjustable filter consists of DSP, A/D converter, D/A converter, input and output synchronous FIFO buffer regions, storage and clock generator. It is featured as storing calculated filtering coefficient of FIR filter and operation subprogram of FIR filtering in storage, calculating a sampling frequency by DSP according to inputted passband cut-off frequency requiring to be adjusted, varying output frequency of clock generator and storing adjusted passband cut-off frequency into storage. Its filtering method is also disclosed. | |||
|
|
|||
| Time: | 12 | ||
<- Previous Patent:Orthogonal filter set designing m...
| Next Patent:Frequency variation multiple stag... ->
|
|||