IT1181438B - Thermoplastics pieces injection moulding - Google Patents

Thermoplastics pieces injection moulding

Info

Publication number
IT1181438B
IT1181438B IT83620/84A IT8362084A IT1181438B IT 1181438 B IT1181438 B IT 1181438B IT 83620/84 A IT83620/84 A IT 83620/84A IT 8362084 A IT8362084 A IT 8362084A IT 1181438 B IT1181438 B IT 1181438B
Authority
IT
Italy
Prior art keywords
block
data
thermoplastics
injection moulding
digitised
Prior art date
Application number
IT83620/84A
Other languages
Italian (it)
Other versions
IT8483620A0 (en
Inventor
Ferruccio Buzzi
Original Assignee
Ferruccio Buzzi
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 Ferruccio Buzzi filed Critical Ferruccio Buzzi
Priority to IT83620/84A priority Critical patent/IT1181438B/en
Publication of IT8483620A0 publication Critical patent/IT8483620A0/en
Application granted granted Critical
Publication of IT1181438B publication Critical patent/IT1181438B/en

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  • Transmission Systems Not Characterized By The Medium Used For Transmission (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.
IT83620/84A 1984-05-08 1984-05-08 Thermoplastics pieces injection moulding IT1181438B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT83620/84A IT1181438B (en) 1984-05-08 1984-05-08 Thermoplastics pieces injection moulding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT83620/84A IT1181438B (en) 1984-05-08 1984-05-08 Thermoplastics pieces injection moulding

Publications (2)

Publication Number Publication Date
IT8483620A0 IT8483620A0 (en) 1984-05-08
IT1181438B true IT1181438B (en) 1987-09-30

Family

ID=11323243

Family Applications (1)

Application Number Title Priority Date Filing Date
IT83620/84A IT1181438B (en) 1984-05-08 1984-05-08 Thermoplastics pieces injection moulding

Country Status (1)

Country Link
IT (1) IT1181438B (en)

Also Published As

Publication number Publication date
IT8483620A0 (en) 1984-05-08

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