NL130386C - - Google Patents
Info
- Publication number
- NL130386C NL130386C NL130386DA NL130386C NL 130386 C NL130386 C NL 130386C NL 130386D A NL130386D A NL 130386DA NL 130386 C NL130386 C NL 130386C
- Authority
- NL
- Netherlands
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1098550XA | 1958-06-20 | 1958-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL130386C true NL130386C (en) |
Family
ID=22329926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL130386D NL130386C (en) | 1958-06-20 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1098550B (en) |
| NL (1) | NL130386C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1154838B (en) * | 1961-05-05 | 1963-09-26 | Standard Elektrik Lorenz Ag | Method for receiving tone-frequency code characters |
| NL292228A (en) * | 1962-05-21 | |||
| DE1290563B (en) * | 1963-07-16 | 1969-03-13 | Siemens Ag | Circuit arrangement for telecommunications systems with an asynchronous combination multiple |
| DE1214744B (en) * | 1963-12-20 | 1966-04-21 | Tekade Fernmeldeapp Ges Mit Be | Circuit arrangement for the selective reception of audio-frequency signals in telecommunications, in particular telephone systems |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE936879C (en) * | 1952-07-15 | 1955-12-22 | Heinrich Dipl-Ing Gerwig | Self-voting system |
| DE1007382B (en) * | 1954-06-22 | 1957-05-02 | Siemens Ag | Electrical signal receiver for receiving voltages of a signal composed of at least two frequencies |
| DE1021016B (en) * | 1955-04-29 | 1957-12-19 | Standard Elektrik Ag | Circuit arrangement for telecommunication and telecontrol systems for signal transmission according to a frequency code system |
| DE1016769B (en) * | 1956-09-19 | 1957-10-03 | Standard Elektrik Ag | Circuit arrangement in a receiving device for signals according to the frequency code system |
| DE1009672B (en) * | 1956-09-20 | 1957-06-06 | Standard Elektrik Ag | Circuit arrangement for the transmission of a switching order, temporarily stored in a memory device, composed of several partial orders, by means of pulses |
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0
- NL NL130386D patent/NL130386C/xx active
-
1959
- 1959-06-18 DE DEW25833A patent/DE1098550B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1098550B (en) | 1961-02-02 |