ES432662A1 - Perfeccionamientos en aparatos telefonicos para transmision de datos. - Google Patents
Perfeccionamientos en aparatos telefonicos para transmision de datos.Info
- Publication number
- ES432662A1 ES432662A1 ES432662A ES432662A ES432662A1 ES 432662 A1 ES432662 A1 ES 432662A1 ES 432662 A ES432662 A ES 432662A ES 432662 A ES432662 A ES 432662A ES 432662 A1 ES432662 A1 ES 432662A1
- Authority
- ES
- Spain
- Prior art keywords
- memory means
- signals
- telephone
- keyboard
- circuit
- 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
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- 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
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
- H04M1/2725—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial using electronic memories
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/066—Telephone sets adapted for data transmision
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA187,492A CA994020A (en) | 1973-12-06 | 1973-12-06 | Telephone data set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES432662A1 true ES432662A1 (es) | 1977-02-16 |
Family
ID=4098590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES432662A Expired ES432662A1 (es) | 1973-12-06 | 1974-12-06 | Perfeccionamientos en aparatos telefonicos para transmision de datos. |
Country Status (14)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121052A (en) * | 1976-01-26 | 1978-10-17 | Richard Herbert L | Telephone data recording system |
| US4087638A (en) * | 1976-10-01 | 1978-05-02 | Telaris Telecommunications Inc. | DTMF Communication system |
| DE3112475A1 (de) * | 1981-03-26 | 1983-02-10 | Heinrich-Hertz-Institut für Nachrichtentechnik Berlin GmbH, 1000 Berlin | Fernsprechapparat |
| US4427848B1 (en) * | 1981-12-29 | 1994-03-29 | Telephone Lottery Company Inc | Telephonic alphanumeric data transmission system |
| JPS5917666U (ja) * | 1983-06-09 | 1984-02-02 | 日本電信電話株式会社 | 押しボタンダイヤル電話機 |
| JPS5917665U (ja) * | 1983-06-09 | 1984-02-02 | 日本電信電話株式会社 | 蓄積機能付電話機 |
| JPS6345956A (ja) * | 1986-08-12 | 1988-02-26 | Tokyo Electric Co Ltd | 通信端末装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4838007A (enrdf_load_stackoverflow) * | 1971-09-16 | 1973-06-05 |
-
1973
- 1973-12-06 CA CA187,492A patent/CA994020A/en not_active Expired
-
1974
- 1974-11-13 ZA ZA00747281A patent/ZA747281B/xx unknown
- 1974-11-28 IT IT29977/74A patent/IT1026634B/it active
- 1974-11-29 NL NL7415585A patent/NL7415585A/xx not_active Application Discontinuation
- 1974-11-29 BR BR10043/74A patent/BR7410043A/pt unknown
- 1974-12-02 DE DE19742456825 patent/DE2456825A1/de active Pending
- 1974-12-04 JP JP49138553A patent/JPS50114903A/ja active Pending
- 1974-12-04 NO NO744379A patent/NO744379L/no unknown
- 1974-12-04 BE BE151161A patent/BE822951A/xx unknown
- 1974-12-05 DK DK632974A patent/DK632974A/da unknown
- 1974-12-05 GB GB5266274A patent/GB1446679A/en not_active Expired
- 1974-12-05 SE SE7415286A patent/SE7415286L/xx unknown
- 1974-12-06 FR FR7440128A patent/FR2254166A1/fr not_active Withdrawn
- 1974-12-06 ES ES432662A patent/ES432662A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO744379L (enrdf_load_stackoverflow) | 1975-06-30 |
| CA994020A (en) | 1976-07-27 |
| BE822951A (fr) | 1975-04-01 |
| IT1026634B (it) | 1978-10-20 |
| SE7415286L (enrdf_load_stackoverflow) | 1975-06-09 |
| FR2254166A1 (enrdf_load_stackoverflow) | 1975-07-04 |
| ZA747281B (en) | 1975-11-26 |
| GB1446679A (en) | 1976-08-18 |
| BR7410043A (pt) | 1976-05-25 |
| AU7552474A (en) | 1976-05-20 |
| JPS50114903A (enrdf_load_stackoverflow) | 1975-09-09 |
| DK632974A (enrdf_load_stackoverflow) | 1975-07-28 |
| DE2456825A1 (de) | 1975-06-12 |
| NL7415585A (nl) | 1975-06-10 |
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