IT1240807B - Circuit for suppressing reciprocal interference between transceivers for radio communications which operate in the same band and are physically close to each other - Google Patents
Circuit for suppressing reciprocal interference between transceivers for radio communications which operate in the same band and are physically close to each otherInfo
- Publication number
- IT1240807B IT1240807B IT47794A IT4779490A IT1240807B IT 1240807 B IT1240807 B IT 1240807B IT 47794 A IT47794 A IT 47794A IT 4779490 A IT4779490 A IT 4779490A IT 1240807 B IT1240807 B IT 1240807B
- Authority
- IT
- Italy
- Prior art keywords
- signal
- transceivers
- suppressing
- operate
- circuit
- Prior art date
Links
- 238000005070 sampling Methods 0.000 abstract 2
Landscapes
- Noise Elimination (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention relates to a circuit for suppressing reciprocal interference between transceivers for radio communications which operate in the same band and are physically close to each other, comprising means for sampling part of the signal transmitted by a first transceiver to be used as the reference signal; means for sampling part of the received signal obtained from a receiving aerial, to be used as the disturbance signal; means for correlating the reference signal with the disturbance signal and extracting their data regarding phase and amplitude; means for receiving the reference signal and for rotating its phase and varying its amplitude according to the phase and amplitude data supplied by the said correlation means; and adding means for adding together the received signal and the reference signal and injecting them into the receiving line in phase opposition to the disturbance signal with a modulus suitable for cancelling the disturbance signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT47794A IT1240807B (en) | 1990-03-28 | 1990-03-28 | Circuit for suppressing reciprocal interference between transceivers for radio communications which operate in the same band and are physically close to each other |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT47794A IT1240807B (en) | 1990-03-28 | 1990-03-28 | Circuit for suppressing reciprocal interference between transceivers for radio communications which operate in the same band and are physically close to each other |
Publications (3)
Publication Number | Publication Date |
---|---|
IT9047794A0 IT9047794A0 (en) | 1990-03-28 |
IT9047794A1 IT9047794A1 (en) | 1991-09-28 |
IT1240807B true IT1240807B (en) | 1993-12-17 |
Family
ID=11262550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT47794A IT1240807B (en) | 1990-03-28 | 1990-03-28 | Circuit for suppressing reciprocal interference between transceivers for radio communications which operate in the same band and are physically close to each other |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1240807B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010145143A1 (en) * | 2009-06-30 | 2010-12-23 | 中兴通讯股份有限公司 | Anti-interference method and apparatus for radio equipments in adjacent frequency bands |
-
1990
- 1990-03-28 IT IT47794A patent/IT1240807B/en active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010145143A1 (en) * | 2009-06-30 | 2010-12-23 | 中兴通讯股份有限公司 | Anti-interference method and apparatus for radio equipments in adjacent frequency bands |
Also Published As
Publication number | Publication date |
---|---|
IT9047794A1 (en) | 1991-09-28 |
IT9047794A0 (en) | 1990-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19960214 |