ES362901A1 - Sistema monocanal de portadoras. - Google Patents
Sistema monocanal de portadoras.Info
- Publication number
- ES362901A1 ES362901A1 ES362901A ES362901A ES362901A1 ES 362901 A1 ES362901 A1 ES 362901A1 ES 362901 A ES362901 A ES 362901A ES 362901 A ES362901 A ES 362901A ES 362901 A1 ES362901 A1 ES 362901A1
- Authority
- ES
- Spain
- Prior art keywords
- exchange
- ringing
- subscriber
- transistor
- signal
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70078468A | 1968-01-26 | 1968-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES362901A1 true ES362901A1 (es) | 1970-09-01 |
Family
ID=24814855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES362901A Expired ES362901A1 (es) | 1968-01-26 | 1969-01-24 | Sistema monocanal de portadoras. |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS4938041B1 (es) |
BE (1) | BE727343A (es) |
CH (1) | CH505523A (es) |
ES (1) | ES362901A1 (es) |
FR (1) | FR2000800A1 (es) |
GB (1) | GB1259302A (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1093561B (it) * | 1978-04-04 | 1985-07-19 | Mauri & C Snc | Autoveicoli articolato per trasproto pubblico |
-
1969
- 1969-01-23 GB GB1259302D patent/GB1259302A/en not_active Expired
- 1969-01-24 BE BE727343D patent/BE727343A/xx unknown
- 1969-01-24 CH CH105969A patent/CH505523A/de not_active IP Right Cessation
- 1969-01-24 JP JP484369A patent/JPS4938041B1/ja active Pending
- 1969-01-24 FR FR6901334A patent/FR2000800A1/fr not_active Withdrawn
- 1969-01-24 ES ES362901A patent/ES362901A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1259302A (es) | 1972-01-05 |
CH505523A (de) | 1971-03-31 |
FR2000800A1 (es) | 1969-09-12 |
DE1903141B2 (de) | 1972-10-19 |
BE727343A (es) | 1969-07-24 |
DE1903141A1 (de) | 1969-08-28 |
JPS4938041B1 (es) | 1974-10-15 |
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