IT1181137B - Modular tiles - Google Patents
Modular tilesInfo
- Publication number
- IT1181137B IT1181137B IT46874/84A IT4687484A IT1181137B IT 1181137 B IT1181137 B IT 1181137B IT 46874/84 A IT46874/84 A IT 46874/84A IT 4687484 A IT4687484 A IT 4687484A IT 1181137 B IT1181137 B IT 1181137B
- Authority
- IT
- Italy
- Prior art keywords
- block
- data
- digitised
- communication link
- circuit
- Prior art date
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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT46874/84A IT1181137B (en) | 1984-10-31 | 1984-10-31 | Modular tiles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT46874/84A IT1181137B (en) | 1984-10-31 | 1984-10-31 | Modular tiles |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8446874A0 IT8446874A0 (en) | 1984-10-31 |
IT8446874A1 IT8446874A1 (en) | 1986-05-01 |
IT1181137B true IT1181137B (en) | 1987-09-23 |
Family
ID=11260048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT46874/84A IT1181137B (en) | 1984-10-31 | 1984-10-31 | Modular tiles |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1181137B (en) |
-
1984
- 1984-10-31 IT IT46874/84A patent/IT1181137B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8446874A0 (en) | 1984-10-31 |
IT8446874A1 (en) | 1986-05-01 |
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