JPS5722475B2 - - Google Patents
Info
- Publication number
- JPS5722475B2 JPS5722475B2 JP4660477A JP4660477A JPS5722475B2 JP S5722475 B2 JPS5722475 B2 JP S5722475B2 JP 4660477 A JP4660477 A JP 4660477A JP 4660477 A JP4660477 A JP 4660477A JP S5722475 B2 JPS5722475 B2 JP S5722475B2
- 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
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/068—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using time division multiplex techniques
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4660477A JPS53134304A (en) | 1977-04-22 | 1977-04-22 | Automatic telephone exchange system |
CA301,636A CA1104698A (en) | 1977-04-22 | 1978-04-21 | Automatic telephone exchange system capable of communication of speech signals and data transfer |
US06/162,205 US4330886A (en) | 1977-04-22 | 1980-06-23 | Automatic telephone exchange system for both speech signals and data transfer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4660477A JPS53134304A (en) | 1977-04-22 | 1977-04-22 | Automatic telephone exchange system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53134304A JPS53134304A (en) | 1978-11-22 |
JPS5722475B2 true JPS5722475B2 (en]) | 1982-05-13 |
Family
ID=12751895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4660477A Granted JPS53134304A (en) | 1977-04-22 | 1977-04-22 | Automatic telephone exchange system |
Country Status (3)
Country | Link |
---|---|
US (1) | US4330886A (en]) |
JP (1) | JPS53134304A (en]) |
CA (1) | CA1104698A (en]) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6181479U (en]) * | 1984-11-05 | 1986-05-30 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57106293A (en) * | 1980-12-23 | 1982-07-02 | Fujitsu Ltd | Data terminal receiving system time division exchange system |
US4434486A (en) | 1981-10-26 | 1984-02-28 | Ibm Corporation | Self-switched data port in-band signaling protocol |
CA1175964A (en) * | 1982-02-22 | 1984-10-09 | John A. Barsellotti | Two wire voice and data subscriber loop |
US4645872A (en) * | 1982-04-01 | 1987-02-24 | John Hopkins University | Videophone network system |
US4455647A (en) * | 1982-06-14 | 1984-06-19 | Siemens Corporation | Apparatus for establishing multi-address connections |
US4581484A (en) * | 1982-09-29 | 1986-04-08 | Oclc Online Computer Library Center Incorporated | Audio-enhanced videotex system |
US4535448A (en) * | 1982-12-10 | 1985-08-13 | At&T Bell Laboratories | Dual bus communication system |
US4532377A (en) * | 1983-07-18 | 1985-07-30 | At&T Information Systems Inc. | Data call transfer |
US4535199A (en) * | 1983-07-18 | 1985-08-13 | At&T Information Systems Inc. | Data call transfer preindication |
GB2146509B (en) * | 1983-09-10 | 1986-08-13 | Stc Plc | Data transmission system |
US4551832A (en) * | 1983-12-02 | 1985-11-05 | United Technologies Corporation | Telephone based control system |
US4730311A (en) * | 1985-03-12 | 1988-03-08 | Pacific Bell | Remote multiplexer for digital telephone system |
US4748656A (en) * | 1986-03-21 | 1988-05-31 | American Telephone And Telegraph Company | Personal computer--as an interface between a telephone station set and a business communication system |
US4750171A (en) * | 1986-07-11 | 1988-06-07 | Tadiran Electronics Industries Ltd. | Data switching system and method |
US4805208A (en) * | 1988-01-15 | 1989-02-14 | Niravoice, Inc. | Modem compression system for telephone network |
CA1314965C (en) * | 1988-03-01 | 1993-03-23 | Gerald Molnar | Data interface for telephone system |
JPH0563833A (ja) * | 1991-09-02 | 1993-03-12 | Nippon Telegr & Teleph Corp <Ntt> | 音声符号無変換通信制御方式 |
DE4228801A1 (de) * | 1991-10-03 | 1993-04-08 | Standard Elektrik Lorenz Ag | Teilnehmerendgeraet fuer isdn-netze |
US7346048B1 (en) * | 2001-07-31 | 2008-03-18 | Lsi Logic Corporation | Efficient high density voice processor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3395254A (en) * | 1964-04-15 | 1968-07-30 | Western Electric Co | Pcm time division communication system conference circuit |
US3973085A (en) * | 1974-09-26 | 1976-08-03 | The Anaconda Company | Key telephone system with directly associated station cards and sets |
JPS5426406B2 (en]) * | 1974-10-05 | 1979-09-04 | ||
US3914559A (en) * | 1974-11-07 | 1975-10-21 | Bell Telephone Labor Inc | Universal PBX line circuit for key and non-key service |
US4007334A (en) * | 1975-07-02 | 1977-02-08 | Bell Telephone Laboratories, Incorporated | Time division digital local telephone office with telemetering line unit |
GB1521127A (en) * | 1975-10-02 | 1978-08-16 | Standard Telephones Cables Ltd | Telecommunication systems |
-
1977
- 1977-04-22 JP JP4660477A patent/JPS53134304A/ja active Granted
-
1978
- 1978-04-21 CA CA301,636A patent/CA1104698A/en not_active Expired
-
1980
- 1980-06-23 US US06/162,205 patent/US4330886A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6181479U (en]) * | 1984-11-05 | 1986-05-30 |
Also Published As
Publication number | Publication date |
---|---|
CA1104698A (en) | 1981-07-07 |
JPS53134304A (en) | 1978-11-22 |
US4330886A (en) | 1982-05-18 |