JPS5757900B2 - - Google Patents
Info
- Publication number
- JPS5757900B2 JPS5757900B2 JP16232679A JP16232679A JPS5757900B2 JP S5757900 B2 JPS5757900 B2 JP S5757900B2 JP 16232679 A JP16232679 A JP 16232679A JP 16232679 A JP16232679 A JP 16232679A JP S5757900 B2 JPS5757900 B2 JP S5757900B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/35—Aspects of automatic or semi-automatic exchanges related to information services provided via a voice call
- H04M2203/352—In-call/conference information service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16232679A JPS5685967A (en) | 1979-12-13 | 1979-12-13 | Conference telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16232679A JPS5685967A (en) | 1979-12-13 | 1979-12-13 | Conference telephone system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5685967A JPS5685967A (en) | 1981-07-13 |
JPS5757900B2 true JPS5757900B2 (en) | 1982-12-07 |
Family
ID=15752401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16232679A Granted JPS5685967A (en) | 1979-12-13 | 1979-12-13 | Conference telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5685967A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59152770A (en) * | 1983-02-21 | 1984-08-31 | Hitachi Ltd | Conference communication system |
JPS6425657A (en) * | 1987-07-21 | 1989-01-27 | Nec Corp | Conference trunk system |
JPH02277364A (en) * | 1989-04-19 | 1990-11-13 | Hitachi Terekomu Technol:Kk | Voice transmission system in voice simultaneous command |
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1979
- 1979-12-13 JP JP16232679A patent/JPS5685967A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5685967A (en) | 1981-07-13 |