1
Cotton John Michael, Williams James Jeffrey Llewelyn, Cosserat David Cockburn: Data processing system interrupt arrangements. Plessey Handel Und Investments, November 6, 1973: US3771146 (46 worldwide citation)

A data processing system includes a memory in which information is stored in segments and at least one processor unit arranged to co-operate with the memory and provided with at least one so-called capability register arranged to store a segment descriptor which includes information indicative of th ...


2
Arnold John Spencer, Beck George Morland, Boom Roger John, Cosserat David Cockburn, Hodges Kenneth James Hamer, Sandeman Theodor Duncan, Williams Roger Morley, O Halloran Michael: Mult-processor data processing system. Plessey Handel Und Investments, Scrivener Parker Scrivener & Clarke, January 22, 1974: US3787818 (43 worldwide citation)

A data processing system includes a group of peripheral units, a plurality of memory modules, a plurality of input-output channel units for use in providing access to the group of peripheral units and a plurality of processor modules. It also includes a plurality of separate data communication paths ...


3
Cole Alun John, Cotton John Michael, Cosserat David Cockburn: Data processing devices using capability registers. Plessey Handel Und Investments, Blum Moscovitz Friedman & Kaplan, January 22, 1974: US3787813 (36 worldwide citation)

A data processing device, for use in a time-sharing computer system, comprises a central processing unit and a storage unit, the information in the storage unit being arranged in segments and the central processing unit includes a plurality of capability registers each arranged to store descriptor i ...


4
Cosserat David Cockburn, Cotton John Michael, O Halloran Michael, Trapnell Frederick Mackay: Program interrupt facilities in data processing systems. Plessey Handel Und Investments, September 4, 1973: US3757307 (15 worldwide citation)

An arrangement for providing a program interrupt facility for use in a modular data processing system which includes at least one processor module, a memory comprising at least one storage module, at least one peripheral unit and a communication medium providing intercommunication between the memory ...


5
Bradley Ian Ashe, Cosserat David Cockburn, Grubb Nicholas Norman: Manual switch-board arrangements in telephone or like switching systems. Plessey Telecomm Res, July 12, 1972: GB1281168-A (2 worldwide citation)

1281168 Automatic exchange systems PLESSEY TELECOMMUNICATIONS RESEARCH Ltd 2 April 1970 [12 April 1969] 18865/69 Heading H4K Manual boards, with connect circuit arrangements and information display devices for each call given assistance, have only one appearance on the outgoing side of an exchange n ...


6
Boom Roger John, Cotton John Michael, Goodier Martin John, Cosserat David Cockburn: Improvements relating to data processing systems. Plessey Telecomm Res, July 12, 1972: GB1281167-A

1281167 Data processor PLESSEY TELECOMMUNICATIONS RESEARCH Ltd 24 Dec 1969 [2 Jan 1969] 193/69 Heading G4A In a data processing arrangement in which a number of different processing functions may be performed under the control of corresponding programme routines stored in unique storage areas, each ...


7
Cruttwell Peter S, Cosserat David Cockburn: Method and apparatus for measuring distance travelled along a gradient. Cruttwell Peter S, Cosserat David Cockburn, GEE Chancery House Chancery Lane London WC2A 1QU, October 19, 1989: WO/1989/009924

Distance travelled over a gradient is determined by measuring atmospheric pressure at a point on a path to be travelled in order to obtain an altitude value. The measurement is repeated at another point on the path travelled, and by determining the difference in altitude values and applying a factor ...