FR2216585B1 - - Google Patents
Info
- Publication number
- FR2216585B1 FR2216585B1 FR7303774A FR7303774A FR2216585B1 FR 2216585 B1 FR2216585 B1 FR 2216585B1 FR 7303774 A FR7303774 A FR 7303774A FR 7303774 A FR7303774 A FR 7303774A FR 2216585 B1 FR2216585 B1 FR 2216585B1
- Authority
- FR
- France
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/30—Electric signal transmission systems in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7303774A FR2216585B1 (es) | 1973-02-02 | 1973-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7303774A FR2216585B1 (es) | 1973-02-02 | 1973-02-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2216585A1 FR2216585A1 (es) | 1974-08-30 |
| FR2216585B1 true FR2216585B1 (es) | 1976-05-14 |
Family
ID=9114254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7303774A Expired FR2216585B1 (es) | 1973-02-02 | 1973-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2216585B1 (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3473803D1 (en) * | 1984-06-20 | 1988-10-06 | Ibm | Detection circuit for current varations |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH498459A (de) * | 1969-04-22 | 1970-10-31 | Patelhold Patentverwertung | Schaltungsanordnung zur elektrischen Anzeige der Stellung eines Kontaktes |
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1973
- 1973-02-02 FR FR7303774A patent/FR2216585B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2216585A1 (es) | 1974-08-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |