FR1416447A - Coding device for telecommunications installations, in particular for selection in telephone installations - Google Patents
Coding device for telecommunications installations, in particular for selection in telephone installationsInfo
- Publication number
- FR1416447A FR1416447A FR988181A FR988181A FR1416447A FR 1416447 A FR1416447 A FR 1416447A FR 988181 A FR988181 A FR 988181A FR 988181 A FR988181 A FR 988181A FR 1416447 A FR1416447 A FR 1416447A
- Authority
- FR
- France
- Prior art keywords
- installations
- selection
- coding device
- telecommunications
- telephone
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR988181A FR1416447A (en) | 1963-09-20 | 1964-09-15 | Coding device for telecommunications installations, in particular for selection in telephone installations |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES87426A DE1205587B (en) | 1963-09-20 | 1963-09-20 | Button dialing device for telephone systems |
DES92787A DE1209610B (en) | 1963-09-20 | 1964-08-25 | Button dialing device for telephone systems |
DES92833A DE1209611B (en) | 1963-09-20 | 1964-08-27 | Button dialing device for telephone systems |
FR988181A FR1416447A (en) | 1963-09-20 | 1964-09-15 | Coding device for telecommunications installations, in particular for selection in telephone installations |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1416447A true FR1416447A (en) | 1965-11-05 |
Family
ID=27437568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR988181A Expired FR1416447A (en) | 1963-09-20 | 1964-09-15 | Coding device for telecommunications installations, in particular for selection in telephone installations |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1416447A (en) |
-
1964
- 1964-09-15 FR FR988181A patent/FR1416447A/en not_active Expired
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