The LSI in Transmission

Author

Picquendar, J.E.

Author_Institution

THOMSON-CSF/GCT, Paris, France

fYear

1980

fDate

22-25 Sept. 1980

Firstpage

42

Lastpage

43

Abstract

From the invention of the telephone (1877), till 1950, the range was short because of the line attenuation. These lines were made of two bronze wires of 5 mm diameter suspended from insulators fixed on wooden potes. The cables were buried! At regular intervals, electronic tubes repeaters were set up. Transmissions and possible ranges improved in a remarkable manner. The first free space microwave links were set up. But, very quickly, appeared an important achievement. F.D.M. (Frequency Division Multiplex) links.This increased the capacity of links and at constantly decreasing prices.

Keywords

electron tubes; frequency division multiplexing; insulators; large scale integration; microwave links; power cables; telephone sets; LSI; bronze wires; cables; electronic tubes repeaters; free space microwave links; frequency division multiplex; insulators; line attenuation; link capacity; telephone; transmission; wooden potes; Decoding; Digital filters; Filtering; Frequency; Large scale integration; Microwave communication; Repeaters; Signal processing; Signal sampling; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid State Circuits Conferene, 1980. ESSCIRC 80. 6th European

Conference_Location

Grenoble

Type

conf

DOI

10.1109/ESSCIRC.1980.5468723

Filename

5468723