Title:
COMMUNICATION TERMINAL
Document Type and Number:
Japanese Patent JP3769433
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a communication terminal capable of obtaining excellent speech communication quality by eliminating various problems generated by the voice quality of the opposite side, the characteristics of the line and the opposite terminal, the environment where a self is placed, etc.
SOLUTION: Two voice quality change modes are prepared. One is a noise mode that corrects voice masking when a speaker exists under noise and the other is a voice quality mode used in case the opposite voice is hard to listen to in a normal speech communication mode. It is possible to set the communication terminal to the noise mode or the voice quality mode by reading data stored in a memory 25 and in such a manner that an operation processor 24 controls a digital equalizer 15, a noise suppressor 16, a volume 17, an echo canceler 18 and a sidetone additional circuit 19 with the data.
Inventors:
Taichi Majima
Application Number:
JP31167699A
Publication Date:
April 26, 2006
Filing Date:
November 01, 1999
Export Citation:
Assignee:
Kenwood Corporation
International Classes:
H04M1/00; H04B1/38; H04B1/3822; H04B7/26; H04M1/58; H04M1/60; H04M1/725; H04W84/10; H04W88/02; (IPC1-7): H04M1/00; H04B1/38; H04B7/26; H04Q7/38; H04M1/58; H04M1/60; H04M1/725
Domestic Patent References:
| JP9135194A | ||||
| JP7273840A | ||||
| JP11284703A | ||||
| JP3083437A | ||||
| JP6104970A | ||||
| JP6209362A | ||||
| JP11112614A |
Foreign References:
| WO1998005150A1 |
Attorney, Agent or Firm:
Makoto Hagiwara