JPS5215208A - Voice switch for telephone set - Google Patents
Voice switch for telephone setInfo
- Publication number
- JPS5215208A JPS5215208A JP9173075A JP9173075A JPS5215208A JP S5215208 A JPS5215208 A JP S5215208A JP 9173075 A JP9173075 A JP 9173075A JP 9173075 A JP9173075 A JP 9173075A JP S5215208 A JPS5215208 A JP S5215208A
- Authority
- JP
- Japan
- Prior art keywords
- telephone set
- voice switch
- voice
- switch
- damazed
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
PURPOSE:To eliminate the cutting off the start of a talk and damazed ends of words in the elephone system formed with the combination of speakers and microphones.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9173075A JPS5215208A (en) | 1975-07-28 | 1975-07-28 | Voice switch for telephone set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9173075A JPS5215208A (en) | 1975-07-28 | 1975-07-28 | Voice switch for telephone set |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5215208A true JPS5215208A (en) | 1977-02-04 |
Family
ID=14034616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9173075A Pending JPS5215208A (en) | 1975-07-28 | 1975-07-28 | Voice switch for telephone set |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5215208A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53136407A (en) * | 1977-05-02 | 1978-11-29 | Nippon Telegr & Teleph Corp <Ntt> | Duplex handset |
JPS59126331A (en) * | 1982-12-24 | 1984-07-20 | Fujitsu Ltd | Voice switching circuit |
JP2003198433A (en) * | 2001-12-26 | 2003-07-11 | Iwatsu Electric Co Ltd | Echo canceler circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5171003A (en) * | 1974-12-17 | 1976-06-19 | Matsushita Electric Ind Co Ltd | KOSEISHIKIDOJITSUWASOCHI |
-
1975
- 1975-07-28 JP JP9173075A patent/JPS5215208A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5171003A (en) * | 1974-12-17 | 1976-06-19 | Matsushita Electric Ind Co Ltd | KOSEISHIKIDOJITSUWASOCHI |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53136407A (en) * | 1977-05-02 | 1978-11-29 | Nippon Telegr & Teleph Corp <Ntt> | Duplex handset |
JPS562470B2 (en) * | 1977-05-02 | 1981-01-20 | ||
JPS59126331A (en) * | 1982-12-24 | 1984-07-20 | Fujitsu Ltd | Voice switching circuit |
JP2003198433A (en) * | 2001-12-26 | 2003-07-11 | Iwatsu Electric Co Ltd | Echo canceler circuit |
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