Institute for Scientific Information, Inc.

Anthony E Cawkell

An apparatus for selectively copying only certain portions of an image, such as portions of documents containing printed or graphic matter, and eliminating gaps between selected portions to thereby minimize time and memory capacity for storing, transmitting or reproducing the selected portions. A document to be selectively copied is scanned by an optoelectronic scanner which generates an electronic signal representative of the image. The signal is stored in a random access memory (RAM) for read-out at a later time. A microprocessor controls operation of the scanner and addressing of the data in the RAM. The data stored in the RAM may be read out sequentially without gaps between the selected portions of the document. The data read out from the RAM may be sent to a high speed printer, a telecopier, or other transducer for printing, transmission to a remote location, or display.

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Uxbridge, United Kingdom

Anthony E Cawkell