JPS4817949A - - Google Patents
Info
- Publication number
- JPS4817949A JPS4817949A JP6760472A JP6760472A JPS4817949A JP S4817949 A JPS4817949 A JP S4817949A JP 6760472 A JP6760472 A JP 6760472A JP 6760472 A JP6760472 A JP 6760472A JP S4817949 A JPS4817949 A JP S4817949A
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/40—Impedance converters
- H03H11/42—Gyrators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/005—Feeding arrangements without the use of line transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Networks Using Active Elements (AREA)
- Circuits Of Receivers In General (AREA)
- Direct Current Feeding And Distribution (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7125013A FR2145074A5 (ja) | 1971-07-08 | 1971-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4817949A true JPS4817949A (ja) | 1973-03-07 |
| JPS5240950B2 JPS5240950B2 (ja) | 1977-10-15 |
Family
ID=9080030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47067604A Expired JPS5240950B2 (ja) | 1971-07-08 | 1972-07-07 |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5240950B2 (ja) |
| AR (1) | AR196308A1 (ja) |
| AT (1) | AT313978B (ja) |
| AU (1) | AU462563B2 (ja) |
| BE (1) | BE786341A (ja) |
| CA (1) | CA961125A (ja) |
| CH (1) | CH570742A5 (ja) |
| DE (1) | DE2232986B2 (ja) |
| ES (1) | ES404623A1 (ja) |
| FR (1) | FR2145074A5 (ja) |
| IT (1) | IT956882B (ja) |
| NL (1) | NL7208964A (ja) |
| NO (1) | NO134352C (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171756A (ja) * | 1974-11-14 | 1976-06-21 | Philips Nv |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2368752A1 (fr) * | 1976-10-20 | 1978-05-19 | Labo Cent Telecommunicat | Dipole electronique a limitation de courant |
| FR2460078B1 (fr) * | 1979-06-25 | 1986-12-12 | Trt Telecom Radio Electr | Joncteur d'abonne electronique |
| FR2530105B1 (fr) * | 1982-07-07 | 1985-07-05 | Constr Telephoniques | Circuit de boucle pour ligne telephonique |
| DE10012519B4 (de) * | 2000-03-15 | 2014-12-11 | Sennheiser Electronic Gmbh & Co. Kg | Drahtlosmikrofon mit einem Mikrofonverstärker |
-
0
- BE BE786341D patent/BE786341A/xx unknown
-
1971
- 1971-07-08 FR FR7125013A patent/FR2145074A5/fr not_active Expired
-
1972
- 1972-06-28 IT IT2629272A patent/IT956882B/it active
- 1972-06-28 NL NL7208964A patent/NL7208964A/xx not_active Application Discontinuation
- 1972-06-29 NO NO232772A patent/NO134352C/no unknown
- 1972-07-05 DE DE19722232986 patent/DE2232986B2/de not_active Withdrawn
- 1972-07-06 AR AR24293872A patent/AR196308A1/es active
- 1972-07-06 CH CH1014672A patent/CH570742A5/xx not_active IP Right Cessation
- 1972-07-07 JP JP47067604A patent/JPS5240950B2/ja not_active Expired
- 1972-07-07 CA CA146,638A patent/CA961125A/en not_active Expired
- 1972-07-07 ES ES404623A patent/ES404623A1/es not_active Expired
- 1972-07-07 AT AT583372A patent/AT313978B/de active
- 1972-07-10 AU AU44385/72A patent/AU462563B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171756A (ja) * | 1974-11-14 | 1976-06-21 | Philips Nv | |
| JPS6132847B2 (ja) * | 1974-11-14 | 1986-07-30 | Fuiritsupusu Furuuiranpenfuaburiken Nv |
Also Published As
| Publication number | Publication date |
|---|---|
| NO134352C (ja) | 1976-09-29 |
| IT956882B (it) | 1973-10-10 |
| AU462563B2 (en) | 1975-06-26 |
| DE2232986A1 (de) | 1973-01-25 |
| BE786341A (fr) | 1973-01-17 |
| ES404623A1 (es) | 1975-06-16 |
| FR2145074A5 (ja) | 1973-02-16 |
| NL7208964A (ja) | 1973-01-10 |
| CH570742A5 (ja) | 1975-12-15 |
| CA961125A (en) | 1975-01-14 |
| AR196308A1 (es) | 1973-12-18 |
| NO134352B (ja) | 1976-06-14 |
| DE2232986B2 (de) | 1980-01-31 |
| JPS5240950B2 (ja) | 1977-10-15 |
| AT313978B (de) | 1974-03-11 |
| AU4438572A (en) | 1974-01-17 |