CH512163A - Dispositivo di segnalazione per lo scambio bidirezionale di informazioni su due o più fili - Google Patents
Dispositivo di segnalazione per lo scambio bidirezionale di informazioni su due o più filiInfo
- Publication number
- CH512163A CH512163A CH1337969A CH1337969A CH512163A CH 512163 A CH512163 A CH 512163A CH 1337969 A CH1337969 A CH 1337969A CH 1337969 A CH1337969 A CH 1337969A CH 512163 A CH512163 A CH 512163A
- Authority
- CH
- Switzerland
- Prior art keywords
- wires
- information
- signaling device
- bidirectional exchange
- bidirectional
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2206368 | 1968-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH512163A true CH512163A (it) | 1971-08-31 |
Family
ID=11190911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1337969A CH512163A (it) | 1968-10-04 | 1969-09-04 | Dispositivo di segnalazione per lo scambio bidirezionale di informazioni su due o più fili |
Country Status (3)
Country | Link |
---|---|
US (1) | US3619512A (it) |
CH (1) | CH512163A (it) |
DE (1) | DE1936005B2 (it) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1159251A (en) * | 1965-07-29 | 1969-07-23 | Post Office | Improvements in or relating to Signalling Systems |
NL6604015A (it) * | 1966-03-26 | 1967-09-27 | ||
US3426969A (en) * | 1967-05-18 | 1969-02-11 | Texas Instruments Inc | Condition controller with bistable switching |
-
1969
- 1969-07-15 DE DE19691936005 patent/DE1936005B2/de active Pending
- 1969-09-04 CH CH1337969A patent/CH512163A/it not_active IP Right Cessation
- 1969-10-06 US US864144A patent/US3619512A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3619512A (en) | 1971-11-09 |
DE1936005A1 (de) | 1970-05-06 |
DE1936005B2 (de) | 1970-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |