JPS6424639A - Voice input/output device - Google Patents
Voice input/output deviceInfo
- Publication number
- JPS6424639A JPS6424639A JP18204287A JP18204287A JPS6424639A JP S6424639 A JPS6424639 A JP S6424639A JP 18204287 A JP18204287 A JP 18204287A JP 18204287 A JP18204287 A JP 18204287A JP S6424639 A JPS6424639 A JP S6424639A
- Authority
- JP
- Japan
- Prior art keywords
- echo
- echo canceller
- wire line
- line connection
- acting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To contrive the reduction of the number of components and to miniaturize the titled device by acting one echo canceller for a high frequency echo canceller and acting the other echo canceller for a low frequency echo canceller in the case of the connection of a 4-wire line and acting the one to eliminate echo of the line and acting the other to eliminate echo existing between a speaker and a microphone at the 2-wire line connection mode. CONSTITUTION:An echo canceller 79 generates a pseudo echo from a high frequency component of a signal given from a terminal 73 with respect to the high frequency component at the 4-wire line connection and generates a pseudo echo generated from the line at the 2-wire line connection. The echo canceller 107 generates a pseudo echo signal at 0-4kHz band to eliminate an echo of a low frequency signal in cooperation with a subtractor 129. Thus, since the echo canceller 79 is used as the high frequency echo canceller at the 4-wire line connection and used as the low frequency echo canceller at the 2-wire line connection, no unused echo canceller exists in both the 2-wire line connection and the 4-wire line connection, thereby attaining the cost-down and miniaturization of the titled device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18204287A JP2590116B2 (en) | 1987-07-21 | 1987-07-21 | Voice input / output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18204287A JP2590116B2 (en) | 1987-07-21 | 1987-07-21 | Voice input / output device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6424639A true JPS6424639A (en) | 1989-01-26 |
| JP2590116B2 JP2590116B2 (en) | 1997-03-12 |
Family
ID=16111325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18204287A Expired - Fee Related JP2590116B2 (en) | 1987-07-21 | 1987-07-21 | Voice input / output device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2590116B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023188661A1 (en) * | 2022-03-29 | 2023-10-05 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Interference sound suppressing device, interference sound suppressing method, and interference sound suppressing program |
-
1987
- 1987-07-21 JP JP18204287A patent/JP2590116B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023188661A1 (en) * | 2022-03-29 | 2023-10-05 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Interference sound suppressing device, interference sound suppressing method, and interference sound suppressing program |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2590116B2 (en) | 1997-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |