NL257195A - - Google Patents
Info
- Publication number
- NL257195A NL257195A NL257195DA NL257195A NL 257195 A NL257195 A NL 257195A NL 257195D A NL257195D A NL 257195DA NL 257195 A NL257195 A NL 257195A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
- G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an ac
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/24—Arrangements for testing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK39005A DE1141683B (en) | 1959-10-24 | 1959-10-24 | Circuit arrangement for testing pulse train generators in telecommunications technology, in particular number switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL257195A true NL257195A (en) |
Family
ID=7221573
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL257195D NL257195A (en) | 1959-10-24 | ||
| NL130510D NL130510C (en) | 1959-10-24 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL130510D NL130510C (en) | 1959-10-24 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1141683B (en) |
| NL (2) | NL130510C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1194921B (en) * | 1963-10-22 | 1965-06-16 | Siemens Ag | Circuit arrangement for telecommunications systems, in particular telephone dialing systems, in which the state of charge of capacitors is changed to measure two time processes, preferably to check pulse series for pulse and pause duration |
| DE2437114A1 (en) * | 1974-08-01 | 1976-02-12 | Dirin | CHECKER FOR PULSE PARAMETERS FROM TELEPHONE NUMBER SWITCHES |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE959572C (en) * | 1954-05-24 | 1957-03-07 | Marconi S Wireless Telegraph | Circuit arrangement for measuring the pulse duration of periodically recurring electrical pulses |
-
0
- NL NL257195D patent/NL257195A/xx unknown
- NL NL130510D patent/NL130510C/xx active
-
1959
- 1959-10-24 DE DEK39005A patent/DE1141683B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL130510C (en) | |
| DE1141683B (en) | 1962-12-27 |