Patent ID: 6775024
Filing Date: 2004-08-10
Classification: G06F,G06K

Abstract:
Method for selective detection and readout of at least one character string from a primary output signal stream of a data processing unit,wherein the at least one character string is input into the data processing unit and is incorporated into the primary output signal stream output at an output interface of the data processing unit, wherein the number of characters of the at least one character string to be selectively read out in each case does not exceed a predetermined maximum number, and wherein position control signals are allocated to each character string and are inserted into a predetermined portion of the primary output signal stream, wherein the position control signals can cause a primary output device which is capable of being connected to the output interface to output the character string allocated thereto in each case at a predetermined output position of an output medium, characterized in that a conversion device connected to the output interface of the data processing unit is put into a configuration mode, that a marking character string is input into the data processing unit instead of each character string which is to be selectively detected, each marking character string forming a unique sequence of characters which does not occur in the primary output signal stream output during the normal operation, and the number of characters of the marking character string being equal to the maximum number of characters of the appertaining character string, that each marking character string with allocated position control signals is incorporated into the primary output signal stream, that the primary output signal stream is received by the conversion device and searched for marking character strings, and when a marking signal string is detected position data identifying its point of origin in the primary output signal stream is obtained from the position control signals allocated to the particular marking character string and inserted into the predetermined portion, and this position data is stored together with the number of characters of the marking character string in this conversion device, and that the conversion device is put into an operating mode in which the primary output signal stream is received, current position data is obtained form the received position control signals, the current position data is compared with each of the stored items of position data and when the current position data corresponds to stored position data the appertaining character string is read out from the primary output signal stream.