GB8912337D0 - A wideband high frequency covert communications system - Google Patents
A wideband high frequency covert communications systemInfo
- Publication number
- GB8912337D0 GB8912337D0 GBGB8912337.6A GB8912337A GB8912337D0 GB 8912337 D0 GB8912337 D0 GB 8912337D0 GB 8912337 A GB8912337 A GB 8912337A GB 8912337 D0 GB8912337 D0 GB 8912337D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- high frequency
- communications system
- wideband high
- covert communications
- frequency covert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB8912337.6A GB8912337D0 (en) | 1989-05-30 | 1989-05-30 | A wideband high frequency covert communications system |
GB9007410A GB2349544B (en) | 1989-05-30 | 1990-04-02 | A wideband high frequency covert communications system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB8912337.6A GB8912337D0 (en) | 1989-05-30 | 1989-05-30 | A wideband high frequency covert communications system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB8912337D0 true GB8912337D0 (en) | 2000-08-23 |
Family
ID=10657553
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB8912337.6A Ceased GB8912337D0 (en) | 1989-05-30 | 1989-05-30 | A wideband high frequency covert communications system |
GB9007410A Expired - Fee Related GB2349544B (en) | 1989-05-30 | 1990-04-02 | A wideband high frequency covert communications system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9007410A Expired - Fee Related GB2349544B (en) | 1989-05-30 | 1990-04-02 | A wideband high frequency covert communications system |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8912337D0 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2386506B (en) * | 2002-03-13 | 2004-06-30 | Toshiba Res Europ Ltd | Dual mode signal processing |
US8670493B2 (en) | 2005-06-22 | 2014-03-11 | Eices Research, Inc. | Systems and/or methods of increased privacy wireless communications |
US7860191B2 (en) * | 2007-09-07 | 2010-12-28 | Qualcomm Incorporated | Optimal two-layer coherent demodulation for D-PSK (Differential Phase Shift Keying) |
CN113391122A (en) * | 2021-06-09 | 2021-09-14 | 中电科思仪科技股份有限公司 | Method for improving selectivity of frequency spectrum monitoring channel |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3988679A (en) * | 1973-05-04 | 1976-10-26 | General Electric Company | Wideband receiving system including multi-channel filter for eliminating narrowband interference |
GB2092415B (en) * | 1981-01-29 | 1984-12-19 | Secr Defence | Digital communication system |
GB2161344A (en) * | 1984-07-06 | 1986-01-08 | Philips Electronic Associated | Transmission of digital data |
-
1989
- 1989-05-30 GB GBGB8912337.6A patent/GB8912337D0/en not_active Ceased
-
1990
- 1990-04-02 GB GB9007410A patent/GB2349544B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2349544A (en) | 2000-11-01 |
GB2349544B (en) | 2001-04-04 |
GB9007410D0 (en) | 2000-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AT | Applications terminated before publication under section 16(1) |