JPS555752B1 - - Google Patents
Info
- Publication number
- JPS555752B1 JPS555752B1 JP1143372A JP1143372A JPS555752B1 JP S555752 B1 JPS555752 B1 JP S555752B1 JP 1143372 A JP1143372 A JP 1143372A JP 1143372 A JP1143372 A JP 1143372A JP S555752 B1 JPS555752 B1 JP S555752B1
- 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.)
- Pending
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
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7101521A NL7101521A (en) | 1971-02-05 | 1971-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS555752B1 true JPS555752B1 (en) | 1980-02-08 |
Family
ID=19812409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1143372A Pending JPS555752B1 (en) | 1971-02-05 | 1972-02-02 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS555752B1 (en) |
| DE (1) | DE2201609C3 (en) |
| FR (1) | FR2124484B1 (en) |
| GB (1) | GB1377021A (en) |
| NL (1) | NL7101521A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112018003956T5 (en) | 2017-08-01 | 2020-05-14 | Tama Bio Inc. | Medical edition |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE396684B (en) * | 1976-02-09 | 1977-09-26 | Ericsson Telefon Ab L M | HALL CIRCUIT IN A RECEIVER DEVICE FOR MFC SIGNALING |
| SE397763B (en) * | 1976-03-09 | 1977-11-14 | Ericsson Telefon Ab L M | RECEIVER DEVICE FOR SENSITIVE DETECTION OF ATMINSTONE TWO TONE FREQUENCIES IN AN INCOMING TONE SIGNAL |
| FR2373926A1 (en) * | 1976-12-10 | 1978-07-07 | Constr Telephoniques | MULTI-FREQUENCY SIGNAL RECEIVER |
| DE3104138A1 (en) * | 1981-02-06 | 1982-08-19 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | SUBSCRIBE CIRCUIT |
| DE3115151A1 (en) * | 1981-04-15 | 1982-11-11 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Circuit arrangement for evaluating AC signals formed from a plurality of simultaneously transmitted alternating currents with different signal frequencies, in telecommunications systems |
| CN113970521B (en) * | 2021-10-15 | 2023-09-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and device for monitoring tapping switch oil sample |
-
1971
- 1971-02-05 NL NL7101521A patent/NL7101521A/xx not_active Application Discontinuation
-
1972
- 1972-01-14 DE DE19722201609 patent/DE2201609C3/en not_active Expired
- 1972-02-02 JP JP1143372A patent/JPS555752B1/ja active Pending
- 1972-02-02 GB GB489572A patent/GB1377021A/en not_active Expired
- 1972-02-04 FR FR7203789A patent/FR2124484B1/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112018003956T5 (en) | 2017-08-01 | 2020-05-14 | Tama Bio Inc. | Medical edition |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2124484B1 (en) | 1977-04-01 |
| DE2201609B2 (en) | 1978-06-29 |
| DE2201609A1 (en) | 1972-08-10 |
| NL7101521A (en) | 1972-08-08 |
| FR2124484A1 (en) | 1972-09-22 |
| GB1377021A (en) | 1974-12-11 |
| DE2201609C3 (en) | 1979-03-22 |