Real-time down-sampling system for digital audio waveform data
US6249766A · kind A · utility
11Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Mar 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A down-sampling system for digital waveforms performs real-time, "on the fly", conversions and results in data of acceptable quality for many applications including applications dealing primarily with speech data. The down-sampler comprises a weight matrix calculator and a loop in which the system takes the input data from the producer's data stream, and at one chunk at a time, the system generates the output data. The loop comprises an input receiver, a chunk receiver, an output chunk generator, a chunk decider for deciding whether there is another chunk in the input, and an input decider for deciding whether there is more input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.