BE466455A - - Google Patents
Info
- Publication number
- BE466455A BE466455A BE466455DA BE466455A BE 466455 A BE466455 A BE 466455A BE 466455D A BE466455D A BE 466455DA BE 466455 A BE466455 A BE 466455A
- Authority
- BE
- Belgium
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
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5664/42A GB557013A (en) | 1942-04-28 | 1942-04-28 | Improvements in or relating to telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE466455A true BE466455A (enrdf_load_stackoverflow) |
Family
ID=9800312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE466455D BE466455A (enrdf_load_stackoverflow) | 1942-04-28 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2364685A (enrdf_load_stackoverflow) |
| BE (1) | BE466455A (enrdf_load_stackoverflow) |
| GB (1) | GB557013A (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3060275A (en) * | 1958-11-07 | 1962-10-23 | Bell Telephone Labor Inc | Telephone system signaling |
| NL252835A (enrdf_load_stackoverflow) * | 1959-06-23 | |||
| US3103558A (en) * | 1959-09-24 | 1963-09-10 | Int Standard Electric Corp | ligotky |
| US3201524A (en) * | 1961-03-27 | 1965-08-17 | Itt | Multi-frequency tone signaling system |
| US3436487A (en) * | 1965-09-14 | 1969-04-01 | Bell Telephone Labor Inc | Telephone signaling arrangement |
| DE1280280B (de) * | 1966-06-29 | 1968-10-17 | Siemens Ag | Verfahren und Schaltungsanordnung zum wechselseitigen UEbertragen von impulscodierten Nachrichten zwischen Teilnehmerstellen ueber einen Sprachkanal |
| US4726095A (en) * | 1986-07-17 | 1988-02-23 | Bissell Jr Norman L | Bucket fish scaler |
-
0
- BE BE466455D patent/BE466455A/xx unknown
-
1942
- 1942-04-28 GB GB5664/42A patent/GB557013A/en not_active Expired
-
1943
- 1943-02-06 US US474905A patent/US2364685A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2364685A (en) | 1944-12-12 |
| GB557013A (en) | 1943-11-01 |