发明名称 |
Voice communications apparatus |
摘要 |
Voice communications apparatus intervenes between a telephone set and a broad-band transmission path that has a communication band broader than a voice band limited by the transmitter and receiver characteristics of the telephone set. The voice communications apparatus includes a transmitter frequency characteristic corrector circuit for correcting the frequency characteristic of a signal input from the telephone set, and a receiver frequency characteristic corrector circuit for correcting the frequency characteristic of a signal to be input to the telephone set.
|
申请公布号 |
US2006013370(A1) |
申请公布日期 |
2006.01.19 |
申请号 |
US20050165436 |
申请日期 |
2005.06.24 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
TAKADA MASASHI;AOYAGI HIROMI;AKIE KAZUYOSHI |
分类号 |
H04M1/00;H04M11/00;H04B3/04;H04M1/253;H04M1/60;H04M3/40;H04M7/00 |
主分类号 |
H04M1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|