DE2825785C2 - Tasten-Fernsprecher - Google Patents
Tasten-FernsprecherInfo
- Publication number
- DE2825785C2 DE2825785C2 DE2825785A DE2825785A DE2825785C2 DE 2825785 C2 DE2825785 C2 DE 2825785C2 DE 2825785 A DE2825785 A DE 2825785A DE 2825785 A DE2825785 A DE 2825785A DE 2825785 C2 DE2825785 C2 DE 2825785C2
- Authority
- DE
- Germany
- Prior art keywords
- telephone
- microprocessor
- pulse
- switch
- secondary winding
- 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
- 238000004804 winding Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007620 mathematical function Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 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
- H04M1/30—Devices which can set up and transmit only one digit at a time
-
- 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
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
- H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
- H04M1/27495—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips implemented by means of discrete electronic components, i.e. neither programmable nor microprocessor-controlled
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
- H04M17/023—Circuit arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Discrete Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Prepayment Telephone Systems (AREA)
- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
- Telephone Set Structure (AREA)
- Input From Keyboards Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1110777A CH620559A5 (enrdf_load_stackoverflow) | 1977-09-12 | 1977-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2825785A1 DE2825785A1 (de) | 1979-03-15 |
| DE2825785C2 true DE2825785C2 (de) | 1983-11-03 |
Family
ID=4370119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2825785A Expired DE2825785C2 (de) | 1977-09-12 | 1978-06-13 | Tasten-Fernsprecher |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT366218B (enrdf_load_stackoverflow) |
| BE (1) | BE870379A (enrdf_load_stackoverflow) |
| CH (1) | CH620559A5 (enrdf_load_stackoverflow) |
| DE (1) | DE2825785C2 (enrdf_load_stackoverflow) |
| DK (1) | DK148867C (enrdf_load_stackoverflow) |
| FR (1) | FR2402976B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2004162B (enrdf_load_stackoverflow) |
| NL (1) | NL7809232A (enrdf_load_stackoverflow) |
| NO (1) | NO148580C (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2566215B1 (fr) * | 1984-06-19 | 1986-10-10 | Semiconducteurs Ste Gle | Dispositif d'adaptation de clavier a emission decimale ou multifrequence sur poste telephonique |
| DE4321778C2 (de) * | 1993-06-30 | 1996-10-02 | Siemens Ag | MFV-/IWV-Schaltungsanordnung für Fernsprechendgeräte |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1298077A (en) * | 1969-10-23 | 1972-11-29 | Post Office | Improvements in or relating to telephone subscribers' sets |
| GB1395577A (en) * | 1972-05-11 | 1975-05-29 | Standard Telephones Cables Ltd | Telephones |
| FR2270738B1 (enrdf_load_stackoverflow) * | 1974-02-14 | 1979-02-09 | Merlin Jean Claude | |
| GB1524028A (en) * | 1974-10-22 | 1978-09-06 | Standard Telephones Cables Ltd | Repertory dialler |
-
1977
- 1977-09-12 CH CH1110777A patent/CH620559A5/de not_active IP Right Cessation
- 1977-09-29 FR FR7729308A patent/FR2402976B1/fr not_active Expired
-
1978
- 1978-06-13 DE DE2825785A patent/DE2825785C2/de not_active Expired
- 1978-08-10 AT AT0580578A patent/AT366218B/de not_active IP Right Cessation
- 1978-09-05 GB GB7835695A patent/GB2004162B/en not_active Expired
- 1978-09-06 NO NO783049A patent/NO148580C/no unknown
- 1978-09-11 DK DK399878A patent/DK148867C/da not_active IP Right Cessation
- 1978-09-11 BE BE190404A patent/BE870379A/xx not_active IP Right Cessation
- 1978-09-11 NL NL7809232A patent/NL7809232A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO148580C (no) | 1983-11-02 |
| DE2825785A1 (de) | 1979-03-15 |
| FR2402976B1 (fr) | 1985-08-30 |
| CH620559A5 (enrdf_load_stackoverflow) | 1980-11-28 |
| NO783049L (no) | 1979-03-13 |
| DK148867C (da) | 1986-04-21 |
| ATA580578A (de) | 1981-07-15 |
| BE870379A (fr) | 1979-01-02 |
| DK148867B (da) | 1985-10-28 |
| FR2402976A1 (fr) | 1979-04-06 |
| NL7809232A (nl) | 1979-03-14 |
| AT366218B (de) | 1982-03-25 |
| GB2004162A (en) | 1979-03-21 |
| NO148580B (no) | 1983-07-25 |
| GB2004162B (en) | 1982-02-10 |
| DK399878A (da) | 1979-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| 8128 | New person/name/address of the agent |
Representative=s name: MUELLER, H., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8320 | Willingness to grant licences declared (paragraph 23) | ||
| 8339 | Ceased/non-payment of the annual fee |