IT1036221B - PLANT FOR CALLING PEOPLE - Google Patents
PLANT FOR CALLING PEOPLEInfo
- Publication number
- IT1036221B IT1036221B IT68812/75A IT6881275A IT1036221B IT 1036221 B IT1036221 B IT 1036221B IT 68812/75 A IT68812/75 A IT 68812/75A IT 6881275 A IT6881275 A IT 6881275A IT 1036221 B IT1036221 B IT 1036221B
- Authority
- IT
- Italy
- Prior art keywords
- plant
- calling people
- calling
- people
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH949774A CH573688A5 (en) | 1974-07-11 | 1974-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1036221B true IT1036221B (en) | 1979-10-30 |
Family
ID=4352615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT68812/75A IT1036221B (en) | 1974-07-11 | 1975-07-11 | PLANT FOR CALLING PEOPLE |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5132203A (en) |
BE (1) | BE831258A (en) |
CH (1) | CH573688A5 (en) |
DE (1) | DE2450289C3 (en) |
ES (1) | ES439186A1 (en) |
FR (1) | FR2278216A1 (en) |
GB (1) | GB1500169A (en) |
IT (1) | IT1036221B (en) |
NL (1) | NL7508313A (en) |
SE (1) | SE418654B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2738278C2 (en) * | 1977-08-25 | 1982-06-03 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Radio system with wireless transmission between portable transceiver devices and with selective calls between the participants with the interposition of a control center |
DE3016809A1 (en) * | 1980-05-02 | 1982-01-28 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Radio signalling system for mobile subscribers - has fixed stations, each with direction finder with rotary directional diagram |
JPS5815348A (en) * | 1981-07-22 | 1983-01-28 | Yagi Antenna Co Ltd | Optical data transmission device in space |
JPS60142100U (en) * | 1984-02-24 | 1985-09-20 | 株式会社 日立工機原町 | meat cutting machine |
JPS6346572A (en) * | 1986-08-13 | 1988-02-27 | Toshiba Corp | Retrieving device |
JPS63198395U (en) * | 1987-06-10 | 1988-12-21 | ||
AU607022B2 (en) * | 1987-12-01 | 1991-02-21 | Ascom Tateco Ab | Paging system with paging receivers controlled depending on location |
WO2013081559A2 (en) * | 2011-11-30 | 2013-06-06 | Abdul Barr Al Fakhouri Hani | A new technique to give a huge number of information channels on mobile phone, very cheap for subscribers |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3166735A (en) | 1958-10-06 | 1965-01-19 | Gen Electric | Code selectors for selective calling systems |
DE1966370C3 (en) * | 1969-09-17 | 1979-12-13 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Arrangement for receiving and transmitting binary coded information |
BE756213A (en) * | 1969-09-17 | 1971-03-01 | Licentia Gmbh | PROCEDURE FOR THE TRANSMISSION OF A DIGITAL AND PROTECTED SELECTIVE CALL INSTRUCTION WITH RETURN RESPONSE, AND DEVICE FOR IMPLEMENTING THE PROCEDURE |
NL7110022A (en) * | 1971-07-21 | 1973-01-23 | ||
US3851251A (en) | 1971-10-25 | 1974-11-26 | Martin Marietta Corp | Receiver method and apparatus |
-
1974
- 1974-07-11 CH CH949774A patent/CH573688A5/xx not_active IP Right Cessation
- 1974-10-23 DE DE2450289A patent/DE2450289C3/en not_active Expired
-
1975
- 1975-07-05 ES ES439186A patent/ES439186A1/en not_active Expired
- 1975-07-07 SE SE7507757A patent/SE418654B/en not_active IP Right Cessation
- 1975-07-08 JP JP50083209A patent/JPS5132203A/ja active Pending
- 1975-07-09 GB GB28980/75A patent/GB1500169A/en not_active Expired
- 1975-07-10 FR FR7521716A patent/FR2278216A1/en active Granted
- 1975-07-11 NL NL7508313A patent/NL7508313A/en unknown
- 1975-07-11 IT IT68812/75A patent/IT1036221B/en active
- 1975-07-11 BE BE158196A patent/BE831258A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB1500169A (en) | 1978-02-08 |
NL7508313A (en) | 1976-01-13 |
FR2278216B1 (en) | 1982-01-29 |
JPS5132203A (en) | 1976-03-18 |
FR2278216A1 (en) | 1976-02-06 |
CH573688A5 (en) | 1976-03-15 |
SE7507757L (en) | 1976-01-12 |
ES439186A1 (en) | 1977-03-01 |
DE2450289B2 (en) | 1979-10-18 |
DE2450289A1 (en) | 1976-01-22 |
SE418654B (en) | 1981-06-15 |
BE831258A (en) | 1975-11-03 |
DE2450289C3 (en) | 1986-01-09 |
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