Patent ID: 6223089
Filing Date: 2001-04-24
Classification: G09G,H04L

Abstract:
A method of controlling a remotely located computer from an operator terminal, comprising:sending a message at one of the computer and the terminal over a fiber optic high speed transmission line via a link serializer to the other of the computer and the terminal, said message including data and an error checking information;comparing the received error checking information with the received data;deleting the message to ignore it as being faulty if a mismatch is determined; andmaintaining subsequently the message at its last valid state to prevent the computer from inadvertently becoming disrupted either by the terminal or the computer being disconnected from said fiber optic transmission line during an idle condition of the computer, or by invalid data;deriving a relatively stable reference clock signal from a pixel clock signal having a frequency at least equal to the pixel clock signal; and supplying the reference clock signal to the link serializer for causing it to generate a relatively stable link clock for controlling the sending of the message from the link serializer in a substantially stable manner.