GB2042849B - Encoding of information - Google Patents

Encoding of information

Info

Publication number
GB2042849B
GB2042849B GB8001982A GB8001982A GB2042849B GB 2042849 B GB2042849 B GB 2042849B GB 8001982 A GB8001982 A GB 8001982A GB 8001982 A GB8001982 A GB 8001982A GB 2042849 B GB2042849 B GB 2042849B
Authority
GB
United Kingdom
Prior art keywords
encoding
information
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
Application number
GB8001982A
Other versions
GB2042849A (en
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.)
PAYVIEW Ltd
Original Assignee
PAYVIEW 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 PAYVIEW Ltd filed Critical PAYVIEW Ltd
Priority to GB8001982A priority Critical patent/GB2042849B/en
Publication of GB2042849A publication Critical patent/GB2042849A/en
Application granted granted Critical
Publication of GB2042849B publication Critical patent/GB2042849B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
GB8001982A 1979-02-20 1980-01-21 Encoding of information Expired GB2042849B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8001982A GB2042849B (en) 1979-02-20 1980-01-21 Encoding of information

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7905930 1979-02-20
GB8001982A GB2042849B (en) 1979-02-20 1980-01-21 Encoding of information

Publications (2)

Publication Number Publication Date
GB2042849A GB2042849A (en) 1980-09-24
GB2042849B true GB2042849B (en) 1983-04-13

Family

ID=26270626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8001982A Expired GB2042849B (en) 1979-02-20 1980-01-21 Encoding of information

Country Status (1)

Country Link
GB (1) GB2042849B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280222A (en) * 1980-01-14 1981-07-21 The Singer Company Receiver and correlator switching method
FR2520955B1 (en) * 1982-01-29 1987-11-13 Radiotechnique ELECTRONIC SYSTEM FOR SECRET TRANSMISSION OF AUDIO SIGNALS
JPS59107658A (en) * 1982-12-10 1984-06-21 Nec Corp Method and apparatus of private talk

Also Published As

Publication number Publication date
GB2042849A (en) 1980-09-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee