Browse Prior Art Database

Selectable Multiple Port Scanning Array

IP.com Disclosure Number: IPCOM000053068D
Original Publication Date: 1981-Aug-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Craig, WJ: AUTHOR

Abstract

This article describes a selectable multiple port scanning array which solves the problems of limited applicability of a multiple port scanner and data formatting of a multiple port scanner.

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Selectable Multiple Port Scanning Array

This article describes a selectable multiple port scanning array which solves the problems of limited applicability of a multiple port scanner and data formatting of a multiple port scanner.

This invention pertains to, but is not limited to, a time delay and integration scanning array 10 which converts the incident light into charge which is then collected and transferred parallel to an output register 11. In the output register 11 the charge is moved serially to the output amplifiers 12, 13, 14 and 15 where the charge is converted into a voltage.

In prior-art devices a single output amplifier was used with the entire output register, and thus a minimum time necessary to access one piece of information was the sum of the amplifier reset time, the amplifier settling time and the data acquisition time which typically is the conversion time for an analog-to-digital converter, but could be the setting time for a high speed sample and hold circuit.

The present invention comprises the addition of an extension 11a on the output of register 11 so that the information is transferred serially from the output register 11 into the extension 11a and then can be fed out through the multiple ports 12, 13, 14 and 15 either serially or in parallel. If desired, only one or more of these multiple output ports need be selected for the information to be transmitted out of the system. For example, if only port, say output port 12, were active, t...