CH391786A - Ring core field for telecommunication systems - Google Patents
Ring core field for telecommunication systemsInfo
- Publication number
- CH391786A CH391786A CH459261A CH459261A CH391786A CH 391786 A CH391786 A CH 391786A CH 459261 A CH459261 A CH 459261A CH 459261 A CH459261 A CH 459261A CH 391786 A CH391786 A CH 391786A
- Authority
- CH
- Switzerland
- Prior art keywords
- telecommunication systems
- ring core
- core field
- field
- ring
- Prior art date
Links
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
- H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
- H04M15/06—Recording class or number of calling, i.e. A-party or called party, i.e. B-party
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/02—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using magnetic or inductive elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES68170A DE1209167B (en) | 1960-04-22 | 1960-04-22 | Process for the production of ring core evaluation fields intended for subscriber identification or conversion in telecommunication switching systems, in particular telephone switching systems |
Publications (1)
Publication Number | Publication Date |
---|---|
CH391786A true CH391786A (en) | 1965-05-15 |
Family
ID=7500093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH459261A CH391786A (en) | 1960-04-22 | 1961-04-18 | Ring core field for telecommunication systems |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE602953A (en) |
CH (1) | CH391786A (en) |
DE (1) | DE1209167B (en) |
NL (1) | NL263793A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1292215B (en) * | 1966-09-23 | 1969-04-10 | Siemens Ag | Method and device for the production of toroidal switching networks |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB824466A (en) * | 1956-09-20 | 1959-12-02 | Ericsson Telefon Ab L M | Improvements in or relating to circuits for selecting the first member in a predetermined multi-stage sequence of members |
-
0
- NL NL263793D patent/NL263793A/xx unknown
-
1960
- 1960-04-22 DE DES68170A patent/DE1209167B/en active Pending
-
1961
- 1961-04-18 CH CH459261A patent/CH391786A/en unknown
- 1961-04-24 BE BE602953A patent/BE602953A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL263793A (en) | |
BE602953A (en) | 1961-08-16 |
DE1209167B (en) | 1966-01-20 |
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