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Dive into the research topics where John Ritchie Kinghorn is active.

Publication


Featured researches published by John Ritchie Kinghorn.


Archive | 1988

Video cassette recorder programming via teletext transmissions

John Ritchie Kinghorn


Archive | 1998

Television access control system

John Ritchie Kinghorn; David Robert Tarrant


Archive | 1983

Data entry keyboard apparatus

John Ritchie Kinghorn; Raymond John Fisher; Terence Alan Douglas


Archive | 1981

Clock pulse phase shifter

Christopher Paul Summers; John Ritchie Kinghorn


Archive | 2000

Television system for suggesting programs based on content and viewer profile

John Ritchie Kinghorn


Archive | 1984

Television receiver arrangements

John Ritchie Kinghorn; Richard Edward Frederick Bugg


Archive | 1984

Testing the presence of a peripheral device

John Ritchie Kinghorn


Archive | 1982

Alpha-numeric character generator arrangement

John Ritchie Kinghorn


Archive | 1982

Digital data apparatus having a plurality of selectively addressable peripheral units

John Ritchie Kinghorn


Archive | 1988

Improved teletext decoder which accommodates an increased number of character codes

John Ritchie Kinghorn

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