IT1191499B - Use of polymers in cement articles protection - Google Patents
Use of polymers in cement articles protectionInfo
- Publication number
- IT1191499B IT1191499B IT41553/86A IT4155386A IT1191499B IT 1191499 B IT1191499 B IT 1191499B IT 41553/86 A IT41553/86 A IT 41553/86A IT 4155386 A IT4155386 A IT 4155386A IT 1191499 B IT1191499 B IT 1191499B
- Authority
- IT
- Italy
- Prior art keywords
- signal
- units
- sample
- relevant
- sign
- Prior art date
Links
Landscapes
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
An audio signal processor treats a digitally encoded signal. Units (3, 12) sample the encoded signal and units (8, 13) calculate from the sampled values a correlation function relevant to a particular time frame. The function value serves to control an adaptive echo cancellation algorithm. The sampled signal portions are truncated (2, 5) so that only the arithmetic sign bit of each signal portion contributes to the function calculation. An incoming signal sample is initially treated in an extraction block arranged to determine the arithmetic sign relevant to that signal, the resulting sign bits being fed in sequence to a shift register arranged to store a predetermined number of sign bits. Outputs are provided from selected locations in the register in accordance with a control logic select circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT41553/86A IT1191499B (en) | 1986-04-15 | 1986-04-15 | Use of polymers in cement articles protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT41553/86A IT1191499B (en) | 1986-04-15 | 1986-04-15 | Use of polymers in cement articles protection |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8641553A0 IT8641553A0 (en) | 1986-04-15 |
IT8641553A1 IT8641553A1 (en) | 1987-10-15 |
IT1191499B true IT1191499B (en) | 1988-03-23 |
Family
ID=11251072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT41553/86A IT1191499B (en) | 1986-04-15 | 1986-04-15 | Use of polymers in cement articles protection |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1191499B (en) |
-
1986
- 1986-04-15 IT IT41553/86A patent/IT1191499B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8641553A0 (en) | 1986-04-15 |
IT8641553A1 (en) | 1987-10-15 |
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