JPS5728452A - Common use system of communication line - Google Patents
Common use system of communication lineInfo
- Publication number
- JPS5728452A JPS5728452A JP10246580A JP10246580A JPS5728452A JP S5728452 A JPS5728452 A JP S5728452A JP 10246580 A JP10246580 A JP 10246580A JP 10246580 A JP10246580 A JP 10246580A JP S5728452 A JPS5728452 A JP S5728452A
- Authority
- JP
- Japan
- Prior art keywords
- communication
- telephone
- communication line
- digital
- devices
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
PURPOSE:To keep the quality of communication at an important communication, by making a digital data communication and a digital telephone communication with the same communication line at the same time and making an analog telephone communication through switching. CONSTITUTION:At normal state, switching circuits 9a, 9b are switched to MODEMs 8a, 8b with packet exchangers 6a, 6b, and packet communication between facsimile devices 5a, 5b, and digital telephone communication band-compressed with digital telephone devices 4a, 4b between telephone sets 2a, 2b are made on the same communication line 10 via the MODEMs 8a, 8b. When important information is communicated, a switching circuit is switched to analog telephone devices 3a, 3b for analog telephone communication. Thus, an adverse effect such as waiting can be minimized to the data communication and the communication with high quality can be made as required. Such a communication line common system between the data communication and the audio communication can be achieved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10246580A JPS5728452A (en) | 1980-07-28 | 1980-07-28 | Common use system of communication line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10246580A JPS5728452A (en) | 1980-07-28 | 1980-07-28 | Common use system of communication line |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5728452A true JPS5728452A (en) | 1982-02-16 |
Family
ID=14328199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10246580A Pending JPS5728452A (en) | 1980-07-28 | 1980-07-28 | Common use system of communication line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5728452A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0279661A (en) * | 1988-09-16 | 1990-03-20 | Murata Mach Ltd | Facsimile equipment |
-
1980
- 1980-07-28 JP JP10246580A patent/JPS5728452A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0279661A (en) * | 1988-09-16 | 1990-03-20 | Murata Mach Ltd | Facsimile equipment |
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