ES422895A1 - Perfeccionamientos en contadores telefonicos de conversa- ciones. - Google Patents
Perfeccionamientos en contadores telefonicos de conversa- ciones.Info
- Publication number
- ES422895A1 ES422895A1 ES422895A ES422895A ES422895A1 ES 422895 A1 ES422895 A1 ES 422895A1 ES 422895 A ES422895 A ES 422895A ES 422895 A ES422895 A ES 422895A ES 422895 A1 ES422895 A1 ES 422895A1
- Authority
- ES
- Spain
- Prior art keywords
- circuit
- rectifier
- telephone
- counters
- translation
- 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
- 230000003213 activating effect Effects 0.000 abstract 3
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7301542A NL7301542A (es) | 1973-02-02 | 1973-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES422895A1 true ES422895A1 (es) | 1976-06-01 |
Family
ID=19818140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES422895A Expired ES422895A1 (es) | 1973-02-02 | 1974-02-02 | Perfeccionamientos en contadores telefonicos de conversa- ciones. |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH579857A5 (es) |
| ES (1) | ES422895A1 (es) |
| FR (1) | FR2216732B3 (es) |
| IT (1) | IT1005366B (es) |
| NL (1) | NL7301542A (es) |
| SE (1) | SE395333B (es) |
-
1973
- 1973-02-02 NL NL7301542A patent/NL7301542A/xx unknown
-
1974
- 1974-01-31 SE SE7401243A patent/SE395333B/xx unknown
- 1974-01-31 CH CH137574A patent/CH579857A5/xx not_active IP Right Cessation
- 1974-02-02 ES ES422895A patent/ES422895A1/es not_active Expired
- 1974-02-04 IT IT933474A patent/IT1005366B/it active
- 1974-02-04 FR FR7403692A patent/FR2216732B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2216732B3 (es) | 1976-11-26 |
| IT1005366B (it) | 1976-08-20 |
| SE395333B (sv) | 1977-08-08 |
| FR2216732A1 (es) | 1974-08-30 |
| CH579857A5 (es) | 1976-09-15 |
| NL7301542A (es) | 1974-08-06 |
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