IT1181889B - Liquid fuels purificn. equipment - Google Patents

Liquid fuels purificn. equipment

Info

Publication number
IT1181889B
IT1181889B IT48017/85A IT4801785A IT1181889B IT 1181889 B IT1181889 B IT 1181889B IT 48017/85 A IT48017/85 A IT 48017/85A IT 4801785 A IT4801785 A IT 4801785A IT 1181889 B IT1181889 B IT 1181889B
Authority
IT
Italy
Prior art keywords
block
data
purificn
equipment
digitised
Prior art date
Application number
IT48017/85A
Other languages
Italian (it)
Other versions
IT8548017A0 (en
Inventor
Francesco Melchiorre
Original Assignee
Francesco Melchiorre
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Francesco Melchiorre filed Critical Francesco Melchiorre
Priority to IT48017/85A priority Critical patent/IT1181889B/en
Publication of IT8548017A0 publication Critical patent/IT8548017A0/en
Application granted granted Critical
Publication of IT1181889B publication Critical patent/IT1181889B/en

Links

Landscapes

  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

The data reduction apparatus is used in a system where speech signals, e.g. between telephones, are digitised in a circuit and later reconverted. Successive blocks of digitised data, e.g. 16m seconds thereof, are compared with each other in the frequency domain in a comparator. The conversion is effected in a circuit block. If one block is similar to its predecessor within pre-set limits, that block is not sent to the output, and instead a control signal is passed to the communication link to instruct a store to repeat the previous block at the other end of the communication link. Thus only critical data blocks are transmitted and the data rate is reduced.
IT48017/85A 1985-04-30 1985-04-30 Liquid fuels purificn. equipment IT1181889B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT48017/85A IT1181889B (en) 1985-04-30 1985-04-30 Liquid fuels purificn. equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48017/85A IT1181889B (en) 1985-04-30 1985-04-30 Liquid fuels purificn. equipment

Publications (2)

Publication Number Publication Date
IT8548017A0 IT8548017A0 (en) 1985-04-30
IT1181889B true IT1181889B (en) 1987-09-30

Family

ID=11263978

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48017/85A IT1181889B (en) 1985-04-30 1985-04-30 Liquid fuels purificn. equipment

Country Status (1)

Country Link
IT (1) IT1181889B (en)

Also Published As

Publication number Publication date
IT8548017A0 (en) 1985-04-30

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