FR2041390A5 - - Google Patents
Info
- Publication number
- FR2041390A5 FR2041390A5 FR6912708A FR6912708A FR2041390A5 FR 2041390 A5 FR2041390 A5 FR 2041390A5 FR 6912708 A FR6912708 A FR 6912708A FR 6912708 A FR6912708 A FR 6912708A FR 2041390 A5 FR2041390 A5 FR 2041390A5
- Authority
- FR
- France
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
-
- 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
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6912708A FR2041390A5 (en) | 1969-04-30 | 1969-04-30 | |
DE19702019859 DE2019859A1 (en) | 1969-04-30 | 1970-04-24 | Method and circuit arrangements for the simultaneous transmission of two types of messages on a common transmission line |
GB2089570A GB1310538A (en) | 1969-04-30 | 1970-04-30 | Data transmission systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6912708A FR2041390A5 (en) | 1969-04-30 | 1969-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2041390A5 true FR2041390A5 (en) | 1971-01-29 |
Family
ID=9032880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6912708A Expired FR2041390A5 (en) | 1969-04-30 | 1969-04-30 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2019859A1 (en) |
FR (1) | FR2041390A5 (en) |
GB (1) | GB1310538A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5824060B2 (en) * | 1979-06-08 | 1983-05-19 | 日本電信電話株式会社 | Audio band multiplex transmission method |
-
1969
- 1969-04-30 FR FR6912708A patent/FR2041390A5/fr not_active Expired
-
1970
- 1970-04-24 DE DE19702019859 patent/DE2019859A1/en active Pending
- 1970-04-30 GB GB2089570A patent/GB1310538A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2019859A1 (en) | 1970-11-12 |
GB1310538A (en) | 1973-03-21 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |