ES409985A1 - Un emisor electronico de impulsos de telefonia. - Google Patents
Un emisor electronico de impulsos de telefonia.Info
- Publication number
- ES409985A1 ES409985A1 ES409985A ES409985A ES409985A1 ES 409985 A1 ES409985 A1 ES 409985A1 ES 409985 A ES409985 A ES 409985A ES 409985 A ES409985 A ES 409985A ES 409985 A1 ES409985 A1 ES 409985A1
- Authority
- ES
- Spain
- Prior art keywords
- stage
- data
- word
- data word
- store
- 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
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
-
- 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)
- Monitoring And Testing Of Exchanges (AREA)
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
- Exchange Systems With Centralized Control (AREA)
- Selective Calling Equipment (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5992771A GB1369829A (en) | 1971-12-23 | 1971-12-23 | Electric impulse transmitters |
Publications (1)
Publication Number | Publication Date |
---|---|
ES409985A1 true ES409985A1 (es) | 1976-04-01 |
Family
ID=10484670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES409985A Expired ES409985A1 (es) | 1971-12-23 | 1972-12-22 | Un emisor electronico de impulsos de telefonia. |
Country Status (8)
Country | Link |
---|---|
AU (1) | AU470553B2 (es) |
DE (1) | DE2262505C2 (es) |
ES (1) | ES409985A1 (es) |
FR (1) | FR2165649A5 (es) |
GB (1) | GB1369829A (es) |
IE (1) | IE37079B1 (es) |
IT (1) | IT972579B (es) |
ZA (1) | ZA728043B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7907134A (nl) * | 1979-09-25 | 1981-03-27 | Ericsson Telefon Mij | Telefooninstallatie van de als sterpuntinstallatie aangeduide soort. |
FR2501938B1 (fr) * | 1981-03-13 | 1985-06-21 | Constr Telephoniques | Circuit conformateur de signaux |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1236961A (en) * | 1968-01-12 | 1971-06-23 | Gen Electric Co Ltd | Improvements in or relating to electric impulse transmitters |
-
1971
- 1971-12-23 GB GB5992771A patent/GB1369829A/en not_active Expired
- 1971-12-23 ZA ZA728043A patent/ZA728043B/xx unknown
-
1972
- 1972-11-15 IE IE1572/72A patent/IE37079B1/xx unknown
- 1972-12-04 AU AU49596/72A patent/AU470553B2/en not_active Expired
- 1972-12-20 DE DE2262505A patent/DE2262505C2/de not_active Expired
- 1972-12-20 IT IT33187/72A patent/IT972579B/it active
- 1972-12-21 FR FR7245702A patent/FR2165649A5/fr not_active Expired
- 1972-12-22 ES ES409985A patent/ES409985A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ZA728043B (en) | 1973-07-25 |
IE37079L (en) | 1973-06-23 |
IT972579B (it) | 1974-05-31 |
DE2262505A1 (de) | 1973-06-28 |
DE2262505C2 (de) | 1982-12-09 |
GB1369829A (en) | 1974-10-09 |
AU4959672A (en) | 1974-06-06 |
FR2165649A5 (es) | 1973-08-03 |
IE37079B1 (en) | 1977-04-27 |
AU470553B2 (en) | 1976-03-18 |
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