Method and device for differentiating between data and voice digital signals
US6216105A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/125
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and device for determining whether a stream of digital words, each comprising a plurality of binary digits, represents data signals, or represents digitized voice is disclosed. The method comprises the step of testing the steadiness or randomness of an individual bit within a predetermined sequence of each said digital words. If the individual bit is tested to be random, the stream of digital words represents data signals; and if the individual bit is test to be steady, the stream of digital words represents voice signals. The device comprises a shift registers to store the predetermined sequence of the digital words, a counter to control the shift register, and a gate arrays to determine steadiness or randomness of the individual bit within the predetermined sequence of each said digital words.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.