Marconi Avionics Limited

Printed Forms Equipment Ltd.

Edward Philip Duffy

Geoffrey B Craggs

David McGlade

A mailing machine including a scanner for detecting data marks printed on documents to be mailed for conveying control information to the machine, for example in the manner known as the &ldquo;Optical Mark Recognition&rdquo; system. The machine includes a memory buffer for storing data concerning the marks if the user inputs data indicating that the reference or &ldquo;gate&rdquo; mark is at the end of the group of marks. The data may then be read from the buffer in the reverse order. Thus, the data marks may be printed in the same position on all documents regardless of the fold configuration, and thus feed orientation, which is required.

Mailing machines

A display system including a display device, a storage means having an array of storage locations each location being adapted to contain data representing a visual parameter of a different pixel of a picture to be displayed, and signal generating means for causing the display device to use the data to display a picture. the storage means is adapted to store data relating to a picture of a larger area than the picture displayed at any one time, the generating means incorporating means for altering the locations in the storage means which are addressed to produce the picture displayed in dependence on the required portion of the larger area picture which it is required to display.

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Hertfordshire, United Kingdom

Edward Philip Duffy