Title:
LINE CONTROL DEVICE AND WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP2023006406
Kind Code:
A
Abstract:
To provide a line control device and a wireless communication system capable of preventing generation of abnormal noise even if a silent state of voice signals continues for a specified period of time.SOLUTION: Provided are a line control device and a wireless communication system. In a first line control device, silence value detection units 15a, 15b detect continuous silence value signals, and addition units 20a, 20b add a pseudo-noise code re-calculated by pseudo-noise calculation units 17a, 17b to the continuous silence value signals to generate continuous pseudo-noise codes, and selection parts 19a, 19b input continuous pseudo-noise signals obtained by converting the continuous pseudo-noise codes into digital voice signals by second conversion units 18a, 18b to speech coding units 14 instead of the continuous silence value signals.SELECTED DRAWING: Figure 1
Inventors:
NAKAMURA TAKASHI
HASEGAWA NORIHISA
HASEGAWA NORIHISA
Application Number:
JP2021108989A
Publication Date:
January 18, 2023
Filing Date:
June 30, 2021
Export Citation:
Assignee:
HITACHI INT ELECTRIC INC
International Classes:
G10L19/012; G10L25/84
Attorney, Agent or Firm:
Nobuhiro Funatsu