BE656928A - - Google Patents
Info
- Publication number
- BE656928A BE656928A BE656928DA BE656928A BE 656928 A BE656928 A BE 656928A BE 656928D A BE656928D A BE 656928DA BE 656928 A BE656928 A BE 656928A
- 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)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US330698A US3306984A (en) | 1963-12-16 | 1963-12-16 | Elimination of talk-off in in-band signaling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE656928A true BE656928A (xx) | 1965-04-01 |
Family
ID=23290925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE656928D BE656928A (xx) | 1963-12-16 | 1964-12-10 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3306984A (xx) |
| JP (1) | JPS4329908B1 (xx) |
| BE (1) | BE656928A (xx) |
| DE (1) | DE1265794B (xx) |
| FR (1) | FR1416150A (xx) |
| GB (1) | GB1019410A (xx) |
| NL (1) | NL6414241A (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3562439A (en) * | 1968-06-24 | 1971-02-09 | Electronic Communications | Telephone inband signalling system |
| US3639839A (en) * | 1968-09-19 | 1972-02-01 | Masayuki Fukata | Broadcast system for a control signal |
| US4010328A (en) * | 1975-06-13 | 1977-03-01 | The Anaconda Company | Out-of-band signaling method and apparatus to adapt payphones to telephone systems |
| US4001513A (en) * | 1975-07-31 | 1977-01-04 | Northern Electric Company Limited | Method and apparatus for the detection of fraudulent toll telephone calls |
| US4018996A (en) * | 1976-02-13 | 1977-04-19 | Kahn Leonard R | Communication network protection system |
| US4101833A (en) * | 1977-03-07 | 1978-07-18 | The Vadic Corporation | Duplex data transmission modem utilizing an injected tone for shifting power within the transmit spectrum |
| US20100208634A1 (en) | 1994-10-11 | 2010-08-19 | Arbinet Corporation | System and Method For Managing Multimedia Communications Across Convergent Networks |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE478607A (xx) * | 1945-12-20 | |||
| CH272952A (de) * | 1948-04-13 | 1951-01-15 | Standard Telephon & Radio Ag | Schaltungsanordnung zur Signalisierung über Telephonleitungen. |
| US3114005A (en) * | 1959-04-24 | 1963-12-10 | Lenkurt Electric Co Inc | Inband signaling system |
| US3103558A (en) * | 1959-09-24 | 1963-09-10 | Int Standard Electric Corp | ligotky |
| NL107299C (xx) * | 1959-12-24 |
-
1963
- 1963-12-16 US US330698A patent/US3306984A/en not_active Expired - Lifetime
-
1964
- 1964-11-26 FR FR996481A patent/FR1416150A/fr not_active Expired
- 1964-12-08 NL NL6414241A patent/NL6414241A/xx unknown
- 1964-12-09 DE DEW38115A patent/DE1265794B/de active Pending
- 1964-12-10 BE BE656928D patent/BE656928A/xx unknown
- 1964-12-16 JP JP7051564A patent/JPS4329908B1/ja active Pending
- 1964-12-16 GB GB51132/64A patent/GB1019410A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6414241A (xx) | 1965-06-17 |
| GB1019410A (en) | 1966-02-09 |
| FR1416150A (fr) | 1965-10-29 |
| US3306984A (en) | 1967-02-28 |
| JPS4329908B1 (xx) | 1968-12-21 |
| DE1265794B (de) | 1968-04-11 |