Method for selectively including leading fricative sounds in a portable communication device operated in a speakerphone mode
US6122531A · kind A · utility
26Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a portable communication device (104) that is able to operate in a speakerphone mode, a user interface such as a keypad (120) and display (122) are provided to allow the user to select (1104) an enhanced mode so that leading fricatives of speech are more likely to be detected as speech, and played over a speaker (214). Upon selecting the enhanced mode of operation, the voicing value of each frame of vocoded speech received is increased, thus making it more likely for energetic fricative frames to be detected as speech.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.