GB8912337D0 - A wideband high frequency covert communications system - Google Patents

A wideband high frequency covert communications system

Info

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
Application number
GBGB8912337.6A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GBGB8912337.6A priority Critical patent/GB8912337D0/en
Priority to GB9007410A priority patent/GB2349544B/en
Publication of GB8912337D0 publication Critical patent/GB8912337D0/en
Ceased legal-status Critical Current

Links

GBGB8912337.6A 1989-05-30 1989-05-30 A wideband high frequency covert communications system Ceased GB8912337D0 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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)