FR1459635A - Perfectionnements aux systèmes de signalisation à fréquences vocales - Google Patents
Perfectionnements aux systèmes de signalisation à fréquences vocalesInfo
- Publication number
- FR1459635A FR1459635A FR42342A FR42342A FR1459635A FR 1459635 A FR1459635 A FR 1459635A FR 42342 A FR42342 A FR 42342A FR 42342 A FR42342 A FR 42342A FR 1459635 A FR1459635 A FR 1459635A
- Authority
- FR
- France
- Prior art keywords
- voice frequency
- signaling systems
- frequency signaling
- systems
- voice
- Prior art date
- 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.)
- Expired
Links
- 230000011664 signaling Effects 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST23082A DE1232213B (de) | 1964-12-15 | 1964-12-15 | Tonfrequentes Tastwahlverfahren fuer Fernmelde-, insbesondere Fernsprechanlagen |
| DEST23083A DE1232214B (de) | 1964-12-15 | 1964-12-15 | Tonfrequentes Tastwahlverfahren fuer Fernmelde-, insbesondere Fernsprechanlagen |
| DE1232213 | 1964-12-15 | ||
| DEST23097A DE1236026B (de) | 1964-12-15 | 1964-12-17 | Wahlaufnahmeeinrichtung fuer Tastwahl-codezeichen, die aus einem Gleichstrom-Vorbereitungszeichen und einer sprachsicheren tonfrequenten Zeichenfrequenzkombination gebildet sind |
| DEST23111A DE1232215B (de) | 1964-12-15 | 1964-12-19 | Tonfrequentes Tastwahlverfahren in Fernmelde-, insbesondere Fernsprechanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1459635A true FR1459635A (fr) | 1966-11-18 |
Family
ID=27509827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR42342A Expired FR1459635A (fr) | 1964-12-15 | 1965-12-15 | Perfectionnements aux systèmes de signalisation à fréquences vocales |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3482051A (fr) |
| AT (1) | AT277329B (fr) |
| BE (4) | BE673760A (fr) |
| CH (5) | CH444239A (fr) |
| DE (4) | DE1232213B (fr) |
| FR (1) | FR1459635A (fr) |
| NL (4) | NL6516306A (fr) |
| SE (1) | SE331301B (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911223A (en) * | 1971-12-02 | 1975-10-07 | Siemens Ag | Circuit arrangement for subscriber stations in telecommunications installations, especially telephone installations with auxiliary data traffic |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2332912A (en) * | 1942-05-01 | 1943-10-26 | Bell Telephone Labor Inc | Telephone system |
| FR81782E (fr) * | 1961-06-19 | 1964-01-31 | ||
| US3319011A (en) * | 1964-05-11 | 1967-05-09 | Bell Telephone Labor Inc | Multifrequency signal receiver circuit |
-
1964
- 1964-12-15 DE DEST23082A patent/DE1232213B/de active Pending
- 1964-12-15 DE DEST23083A patent/DE1232214B/de active Pending
- 1964-12-17 DE DEST23097A patent/DE1236026B/de active Pending
- 1964-12-19 DE DEST23111A patent/DE1232215B/de active Pending
-
1965
- 1965-09-30 AT AT886165A patent/AT277329B/de not_active IP Right Cessation
- 1965-12-08 US US512344A patent/US3482051A/en not_active Expired - Lifetime
- 1965-12-09 CH CH1702565A patent/CH444239A/de unknown
- 1965-12-09 CH CH1702665A patent/CH437439A/de unknown
- 1965-12-13 CH CH1715665A patent/CH454967A/de unknown
- 1965-12-13 CH CH1715765A patent/CH444240A/de unknown
- 1965-12-13 SE SE16094/65A patent/SE331301B/xx unknown
- 1965-12-15 BE BE673760D patent/BE673760A/xx unknown
- 1965-12-15 FR FR42342A patent/FR1459635A/fr not_active Expired
- 1965-12-15 NL NL6516306A patent/NL6516306A/xx unknown
- 1965-12-15 BE BE673759D patent/BE673759A/xx unknown
- 1965-12-15 NL NL6516301A patent/NL6516301A/xx unknown
- 1965-12-15 NL NL6516307A patent/NL6516307A/xx unknown
- 1965-12-15 NL NL6516300A patent/NL6516300A/xx unknown
- 1965-12-17 BE BE673897D patent/BE673897A/xx unknown
- 1965-12-17 BE BE673896D patent/BE673896A/xx unknown
-
1966
- 1966-06-02 CH CH797566A patent/CH454067A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH444240A (de) | 1967-09-30 |
| BE673897A (fr) | 1966-06-17 |
| NL6516306A (fr) | 1966-06-20 |
| SE331301B (fr) | 1970-12-21 |
| DE1232215B (de) | 1967-01-12 |
| CH454967A (de) | 1968-04-30 |
| DE1236026B (de) | 1967-03-09 |
| CH437439A (de) | 1967-06-15 |
| NL6516307A (fr) | 1966-06-20 |
| CH444239A (de) | 1967-09-30 |
| BE673759A (fr) | 1966-06-15 |
| NL6516301A (fr) | 1966-06-16 |
| BE673896A (fr) | 1966-06-17 |
| CH454067A (de) | 1968-04-15 |
| AT277329B (de) | 1969-12-29 |
| DE1232213B (de) | 1967-01-12 |
| BE673760A (fr) | 1966-06-15 |
| NL6516300A (fr) | 1966-06-16 |
| DE1232214B (de) | 1967-01-12 |
| US3482051A (en) | 1969-12-02 |
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