Transmission device, transmission method, reception device, reception method, transmission/reception device, communication method, recording medium, and program
US7515661B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2003 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jun 15, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0364
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A transmitting apparatus, a transmitting method, a receiving apparatus, a receiving method, a transceiver, a communication apparatus and method, a recording medium, and a program in which high quality voice can be decoded. A cellular telephone outputs coded voice data and also supplies uncoded voice sample data to a switching center while a telephone call is not made. Based on voice data used for the previous calculation processing and newly input voice data, the switching center performs calculation processing for quality-improving data for improving the quality of voice to be output from a cellular telephone that receives the coded voice data. The switching center stores the optimal quality-improving data as a user information database in association with the cellular telephone. The cellular telephone decodes the coded voice data based on the optimal quality-improving data supplied from the switching center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.