IT1181458B - Moulded cement prods. mfr. - Google Patents
Moulded cement prods. mfr.Info
- Publication number
- IT1181458B IT1181458B IT84122/84A IT8412284A IT1181458B IT 1181458 B IT1181458 B IT 1181458B IT 84122/84 A IT84122/84 A IT 84122/84A IT 8412284 A IT8412284 A IT 8412284A IT 1181458 B IT1181458 B IT 1181458B
- Authority
- IT
- Italy
- Prior art keywords
- block
- data
- prods
- mfr
- digitised
- Prior art date
Links
- 239000004568 cement Substances 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT84122/84A IT1181458B (en) | 1984-08-09 | 1984-08-09 | Moulded cement prods. mfr. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT84122/84A IT1181458B (en) | 1984-08-09 | 1984-08-09 | Moulded cement prods. mfr. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8484122A0 IT8484122A0 (en) | 1984-08-09 |
IT1181458B true IT1181458B (en) | 1987-09-30 |
Family
ID=11324333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT84122/84A IT1181458B (en) | 1984-08-09 | 1984-08-09 | Moulded cement prods. mfr. |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1181458B (en) |
-
1984
- 1984-08-09 IT IT84122/84A patent/IT1181458B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8484122A0 (en) | 1984-08-09 |
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