GB2210539B - Narrow band digital communications method and system - Google Patents

Narrow band digital communications method and system

Info

Publication number
GB2210539B
GB2210539B GB8822289A GB8822289A GB2210539B GB 2210539 B GB2210539 B GB 2210539B GB 8822289 A GB8822289 A GB 8822289A GB 8822289 A GB8822289 A GB 8822289A GB 2210539 B GB2210539 B GB 2210539B
Authority
GB
United Kingdom
Prior art keywords
narrow band
digital communications
communications method
band digital
narrow
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.)
Expired - Fee Related
Application number
GB8822289A
Other versions
GB2210539A (en
GB8822289D0 (en
Inventor
Raymond Scrivens
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.)
MINISIG SYSTEMS Ltd
Original Assignee
MINISIG SYSTEMS Ltd
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 MINISIG SYSTEMS Ltd filed Critical MINISIG SYSTEMS Ltd
Publication of GB8822289D0 publication Critical patent/GB8822289D0/en
Publication of GB2210539A publication Critical patent/GB2210539A/en
Application granted granted Critical
Publication of GB2210539B publication Critical patent/GB2210539B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
GB8822289A 1987-09-29 1988-09-22 Narrow band digital communications method and system Expired - Fee Related GB2210539B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878722780A GB8722780D0 (en) 1987-09-29 1987-09-29 Communications system

Publications (3)

Publication Number Publication Date
GB8822289D0 GB8822289D0 (en) 1988-10-26
GB2210539A GB2210539A (en) 1989-06-07
GB2210539B true GB2210539B (en) 1991-04-24

Family

ID=10624486

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878722780A Pending GB8722780D0 (en) 1987-09-29 1987-09-29 Communications system
GB8822289A Expired - Fee Related GB2210539B (en) 1987-09-29 1988-09-22 Narrow band digital communications method and system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878722780A Pending GB8722780D0 (en) 1987-09-29 1987-09-29 Communications system

Country Status (1)

Country Link
GB (2) GB8722780D0 (en)

Also Published As

Publication number Publication date
GB8722780D0 (en) 1987-11-04
GB2210539A (en) 1989-06-07
GB8822289D0 (en) 1988-10-26

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050922