There is no money to repay the lessons (of life and technical) Telettra allowed me to live, feeling after all these more years as part of this great "family", I claim with pride, even my modest contribution.
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History (source Wikipedia http://it.wikipedia.org/wiki/Telettra )
History (source Wikipedia http://it.wikipedia.org/wiki/Telettra )
Founded in 1946 by engineer Virgilio Floriani (1906 Cison Valmarino - 2000 Cernusco Lombardone ) to Milan, with about 7 million pounds of household savings and a dozen collaborators, Telettra reached with the years a considerable national and international dimension, with about 10,000 total employees, and numerous assets patents and inventions in the field of telecommunications.
In 1957 Telettra founded with Olivetti, the Company General Semiconductor (SGS), which became an independent and important Italian company to develop electronic devices. In 1968 the SGS was sold to 'IRI and after a few years the company merged with French semiconductor Thomson Semiconducteurs , forming the SGS Thomson, now STMicroelectronics .
's head office is moved to the Telettra 1960 to Vimercate, but there are numerous manufacturing facilities and development in Italy ( Gorgonzola, Trieste, Rieti, Chieti , Aicurzio , Concorezzo , St. John Persiceto Rome, Bari ) and international (including in Spain , Norway, Mexico , Brazil, Argentina ).
After the sale of the company from the Floriani FIAT in 1976, continues the company's growth thanks to continued investment in research and development, and collaboration with universities and with major national and international.
In the '90s looms the possibility of the Italian center of the sector through the transfer and Telettra Italtel (led by Marisa Bellisario ) into a new company called Telit. Political problems, however, prevent the birth of this company and in 1990 FIAT finally decide the sale of the multinational Telettra French Alcatel , which absorbs all the activities done and remove the historic brand. In 2006 Alcatel merges with Lucent , with brand new Alcatel-Lucent , thus incorporating the activities ex-Telettra, largely transformed by 16 years of development and integration of Alcatel.
To date, the historical site of a Telettra Vimercate (Milano ) is the main Italian and one of the most important global Alcatel-Lucent.
A brief summary of the contributions Telettra 1946 - 1989
- 1946 Foundation
- 1947 single-channel frequencies vector (PA5-PT5)
- 1948 single-channel line carrier (PTR12)
- 1949 Connection experimental Stradella (PV ) - Turin 150 MHz radio link multiacanale FDM, first in Italy (M-CH1)
- 1950 Multiplex 12-channel FDM on airline (PS1); experimental colleagues Milan - Stratford - Piacenza in 600 MHz radio link
- 1951 Multiplex 12-channel FDM - 2nd generation (PS12)
- 1952 connection c. 24 FDM Firenze - Poggio Corni - Lucca in 1.5GHz radio link planar triode (H5)
- 1953 Multiplex 12-channel FDM compandorizzato for airline and coaxial cable, first in Europe
- 1954 Contract for long-distance network on airlines for Turkey (PS3-PS12-TAF24)
- 1955 Starting the laboratory for the production of semiconductors to germanium ; connection to 60 FDM channels Milan - Como - Sondrio in radio link 6 GHz, the first in Europe with passive repeaters (H8)
- 1957 Fonzazione SGS (Telettra + Olivetti ) for the production of semiconductor ; multiplexing 12/24 channels FDM transistorized
- 1960 radio link TV / 960 FDM channels with wave tube
- 1961 Multiplex 960 FDM channels transistorized
- 1962 Multiplex 24 PCM channels, in the first year in Europe (DT24)
- 1963 radio link TV installed in Ireland (H12)
- 1964 Multiplex 960 FDM channels 2 º Gener. rules ISPT (PST2), Integrated, experimental time-division for 250 subscribers, first in Italy (SINTEL)
- 1965 radio link 1800 FDM channels to semiconductor (HT12)
- 1967 radio link 2 Mbit / s - 24 channels - PCM - 13 GHz in the first year in Europe for digital transmission (H17)
- 1968 transistorized system in line 300 can. FDM for coaxial cable, first designed and produced in Italy
- 1969 Computerized supervision; autoswitch transit for private networks (AE)
- 1970 radio repeater everything microwave for 960 can. FDM world's first ultra-low power (IR-20); Communication System land-line carrier train line traction is unique in the world.
- 1971 to 2700 line system can. FDM coaxial cable for (ACX-2700)
- 1972 radio link 34 Mbit / s - 480 can. - PCM - 13 GHz, with 2 anti-reflective device antennas for flights on sea (Greece )
- 1973 backbone Papua New Guinea with radio repeaters IR-20
- 1974 system line to 8 Mbit / s - 120 can. PCM coaxial cable
- 1976 Central number for voice and data (AFDT Italy; system 10800 can. FDM coaxial cable for
- 1977 mail to 1000 subscribers in the Central division of space in container (DST)
- 1978 Provision of radio stations in the container for the backbone of 2700 km in USRR BAM (HT4), provision of 140 stations to HF1000W 'Italian Army
- 1979 radio link is 360 km in the Red Sea , the longest in the world. ref.
- 1980 connection to 140 Mbit / s - 1920 Can. PCM on optical fiber in Rome
- 1981 Central numerical transit Khartoum, the first export of a numerical central Italian; experimental radio link at 140 Mbit / s 16QAM for ASST
- 1982 numerical data networks operating in Australia ; prototype transceiver system VHF ECCM protection with advanced
- 1983 plant design and manufacture of all ' Arsenide Gallium ; large-scale production of radio 140 Mb / s - 1920 Can. PCM (HTN)
- 1984 digital ISDN connection experimental Bologna; Mb/s-7680 link 565 can. PCM on cable Milan - Bergamo
- 1985 Systems 2/8/34 Mb / s fiber optic for SIP ; entry into service dispatcher ENEL
- 1986 Systems 140 Mb / s over optical fiber for SIP telephony device for car mobile radio network Italian public (RMA 450), digital remote concentrator (MC240), digital transmission TV to 140 Mb / s and multiplexes subscriber 2 Mb / s for SIP
- 1987 Systems 565 Mb / s fiber optic SIP
- 1989 Experimental system ground to train on line carrier to provide public telephone services on board trains, in cooperation with the State Railways and SIP.
- 1989 development consortium in the first Add-Drop Multiplexer STM-1 SDH technology (project stopped with the acquisition by Alcatel ).
The last big idea Telettra before the sale to Alcatel
- In 1990 consortium of RAI, Telettra, and RTVE of Madrid, within the European project Eureka 256 (EU-256), develop a system for compressing digital HDTV DCT based on the algorithm (Discrete Cosine Transform), which will come five years later, the compression standard MPEG-2 . The system will be demonstrated during the World Cup Italy 1990 spreading to 8 rooms of the Italian viewing high resolution images taken in the fields of football with HDTV systems 1125/60i/16: 9 and 1250/50i/16: 9 and transmitted via satellite Olympus (ill-fated European satellite to test technologies transmission, which was launched in '89 and that stops working after several technical incidents, in 93). The transfer to Alcatel Telettra also produces results in the failure to develop products in these studies were technology leaders worldwide [1] .
