IT1181087B - Foamed body with central elastic cavity - Google Patents
Foamed body with central elastic cavityInfo
- Publication number
- IT1181087B IT1181087B IT46803/84A IT4680384A IT1181087B IT 1181087 B IT1181087 B IT 1181087B IT 46803/84 A IT46803/84 A IT 46803/84A IT 4680384 A IT4680384 A IT 4680384A IT 1181087 B IT1181087 B IT 1181087B
- Authority
- IT
- Italy
- Prior art keywords
- block
- data
- digitised
- foamed body
- communication link
- 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 |
---|---|---|---|
IT46803/84A IT1181087B (en) | 1984-01-18 | 1984-01-18 | Foamed body with central elastic cavity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT46803/84A IT1181087B (en) | 1984-01-18 | 1984-01-18 | Foamed body with central elastic cavity |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8446803A0 IT8446803A0 (en) | 1984-01-18 |
IT8446803A1 IT8446803A1 (en) | 1985-07-18 |
IT1181087B true IT1181087B (en) | 1987-09-23 |
Family
ID=11258886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT46803/84A IT1181087B (en) | 1984-01-18 | 1984-01-18 | Foamed body with central elastic cavity |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1181087B (en) |
-
1984
- 1984-01-18 IT IT46803/84A patent/IT1181087B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8446803A1 (en) | 1985-07-18 |
IT8446803A0 (en) | 1984-01-18 |
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