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IT1181617B - Smoke producing target rocket - Google Patents

Smoke producing target rocket

Info

Publication number
IT1181617B
IT1181617B IT47848/85A IT4784885A IT1181617B IT 1181617 B IT1181617 B IT 1181617B IT 47848/85 A IT47848/85 A IT 47848/85A IT 4784885 A IT4784885 A IT 4784885A IT 1181617 B IT1181617 B IT 1181617B
Authority
IT
Italy
Prior art keywords
block
data
digitised
communication link
smoke producing
Prior art date
Application number
IT47848/85A
Other languages
Italian (it)
Other versions
IT8547848A0 (en
IT8547848A1 (en
Inventor
Aldo Campagni
Original Assignee
Sipe Nobel Spa
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 Sipe Nobel Spa filed Critical Sipe Nobel Spa
Priority to IT47848/85A priority Critical patent/IT1181617B/en
Publication of IT8547848A0 publication Critical patent/IT8547848A0/en
Publication of IT8547848A1 publication Critical patent/IT8547848A1/en
Application granted granted Critical
Publication of IT1181617B publication Critical patent/IT1181617B/en

Links

Landscapes

  • 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.
IT47848/85A 1985-03-22 1985-03-22 Smoke producing target rocket IT1181617B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT47848/85A IT1181617B (en) 1985-03-22 1985-03-22 Smoke producing target rocket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT47848/85A IT1181617B (en) 1985-03-22 1985-03-22 Smoke producing target rocket

Publications (3)

Publication Number Publication Date
IT8547848A0 IT8547848A0 (en) 1985-03-22
IT8547848A1 IT8547848A1 (en) 1986-09-22
IT1181617B true IT1181617B (en) 1987-09-30

Family

ID=11262915

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47848/85A IT1181617B (en) 1985-03-22 1985-03-22 Smoke producing target rocket

Country Status (1)

Country Link
IT (1) IT1181617B (en)

Also Published As

Publication number Publication date
IT8547848A0 (en) 1985-03-22
IT8547848A1 (en) 1986-09-22

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960904