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Colour test
REtIIS
Optical character system Following the pilot scheme of the Redifon R550 mixed media system installed in Birmingham, British Rail have ordered a further seven identical systems and a dual R400 dta entry system from Redifon Computers in a contract work over £3 million. The pilot scheme evaluation was based on applications including payroll, freight accounting and accounts payable. However, i t is planned to extend the work handled by the next mixed media systems to include all of the applications being done on the paper tape equipment presently installed. The R550 mixed media system consists of a number of visual display unit terminals - usually 20 to 30 plus an optical character recognition page reader. Documents with either hand-print or machine print are fed into the reader and the data on the document is optically scanned and read. The reading rate is about one million characters per hour. The system automatically corrects for poorly written characters. The visual display
228
units are used for conventional keyboard data entry as well as for reentering any rejected documents. The R550 also communicates Simultaneously with IBM or ICL mainframces.
Redifon Computers Ltd, Kelvin Way, Crawley, Sussex, UK
Colou r test A led array test system is programmable, microprocessor-controlled and high speed, according to Versatile Integrated Modules. The system is designed specifically to measure the performance characteristics of led arrays, including photometric brightness, colour and electrical specifications, in either production or laboratory environments. The unit, known as 4000-C, is able to perform accurate brightness and colour tests on led arrays up to ten digits wide with each digit having up to 40 segments or dots. The tester is a three module (main frame, crt terminal and test station) integrated facility that allows measurements to
be made at high production throughput rates. In addition, the device permits extensive user programming, assuring the ability to update test programs to handle new generations of led arrays. Three modes of operation are available: test mode, step mode and parameter modification mode. LED arrays are measured and sorted into six categories of brightness and six of colour. Forward voltage, reverse voltage and brightness tests can be performed in any order, with all failure data automatically logged, analysed and retrievable either on the crt or the optional printer. The manufacturers expect that users of the test system will be led manufacturers requiring exacting levels of brightness and colour control in their products, and oems wanting to buy large quantities of untested led arrays at low prices, for testing in house.
Versatile Integrated Modules, 1283,4 Mountain View, Alviso Road, Sunnyvale, CA 94086, USA
DISPLAYS. APR I L 1981
Optical character system Following the pilot scheme of the Redifon R550 mixed media system installed in Birmingham, British Rail have ordered a further seven identical systems and a dual R400 dta entry system from Redifon Computers in a contract work over £3 million. The pilot scheme evaluation was based on applications including payroll, freight accounting and accounts payable. However, i t is planned to extend the work handled by the next mixed media systems to include all of the applications being done on the paper tape equipment presently installed. The R550 mixed media system consists of a number of visual display unit terminals - usually 20 to 30 plus an optical character recognition page reader. Documents with either hand-print or machine print are fed into the reader and the data on the document is optically scanned and read. The reading rate is about one million characters per hour. The system automatically corrects for poorly written characters. The visual display
228
units are used for conventional keyboard data entry as well as for reentering any rejected documents. The R550 also communicates Simultaneously with IBM or ICL mainframces.
Redifon Computers Ltd, Kelvin Way, Crawley, Sussex, UK
Colou r test A led array test system is programmable, microprocessor-controlled and high speed, according to Versatile Integrated Modules. The system is designed specifically to measure the performance characteristics of led arrays, including photometric brightness, colour and electrical specifications, in either production or laboratory environments. The unit, known as 4000-C, is able to perform accurate brightness and colour tests on led arrays up to ten digits wide with each digit having up to 40 segments or dots. The tester is a three module (main frame, crt terminal and test station) integrated facility that allows measurements to
be made at high production throughput rates. In addition, the device permits extensive user programming, assuring the ability to update test programs to handle new generations of led arrays. Three modes of operation are available: test mode, step mode and parameter modification mode. LED arrays are measured and sorted into six categories of brightness and six of colour. Forward voltage, reverse voltage and brightness tests can be performed in any order, with all failure data automatically logged, analysed and retrievable either on the crt or the optional printer. The manufacturers expect that users of the test system will be led manufacturers requiring exacting levels of brightness and colour control in their products, and oems wanting to buy large quantities of untested led arrays at low prices, for testing in house.
Versatile Integrated Modules, 1283,4 Mountain View, Alviso Road, Sunnyvale, CA 94086, USA
DISPLAYS. APR I L 1981