Title:
【発明の名称】エコー消去器を制御するための装置および方法
Document Type and Number:
Japanese Patent JP3213753
Kind Code:
B2
Abstract:
An echo canceler (10) is controlled and operated during hangover time between a double talk condition and a single talk condition for a more natural residual echo cancellation. The adaptive gain and the residual suppression threshold necessary for controlling an adaptive filter and a residual echo suppressor, respectively, are computed such that their respective values increase gradually and smoothly from predetermined minimum values to predetermined maximum values during the hangover time.
Inventors:
Xenoi, Xian
Osidari, Tamas, Tea
Osidari, Tamas, Tea
Application Number:
JP51119894A
Publication Date:
October 02, 2001
Filing Date:
October 22, 1993
Export Citation:
Assignee:
Alcatel, USA, ink
International Classes:
H03H21/00; H04B3/23; H04M1/58; (IPC1-7): H04B3/23; H03H21/00; H04M1/58
Domestic Patent References:
| JP63234732A | ||||
| JP1119121A | ||||
| JP2122756A | ||||
| JP6172419A | ||||
| JP5244043A |
Attorney, Agent or Firm:
Yuzo Sanada (1 person outside)