Abstract: Some embodiments of the invention include a vehicle control system having: two GNSS receivers positioned fixedly in a known relationship with respect to one another on a vehicle, for receiving signals from navigation satellites, a computer unit for using the signals to form direction vectors, and generating instructions for steering the vehicle as a function of the direction vectors, wherein at least one retro-reflector is arranged in a predefined position with respect to the GNSS receivers on the vehicle, a geodetic measuring device is positioned in an immovable fashion at a known reference position in order to determine exact absolute positions of the retro-reflector, wherein the measuring device has a transmitter for transmitting the exact absolute positions to a receiver of the computer unit, and the computer unit is also designed to generate the instructions as a function of the exact absolute positions.

Abstract: Some embodiments of the invention include a vehicle control system having: two GNSS receivers positioned fixedly in a known relationship with respect to one another on a vehicle, for receiving signals from navigation satellites, a computer unit for using the signals to form direction vectors, and generating instructions for steering the vehicle as a function of the direction vectors, wherein at least one retro-reflector is arranged in a predefined position with respect to the GNSS receivers on the vehicle, a geodetic measuring device is positioned in an immovable fashion at a known reference position in order to determine exact absolute positions of the retro-reflector, wherein the measuring device has a transmitter for transmitting the exact absolute positions to a receiver of the computer unit, and the computer unit is also designed to generate the instructions as a function of the exact absolute positions.

Abstract: A method for optimizing the performance of a network printer comprising: scanning the input print data stream in a raster image processor and processing the entire input print data stream in a page parallel processing pathway where said input print data stream is in a page independent form; otherwise selecting the processing pathway corresponding to a lower processing time period and thereafter processing the entire input print data stream using said selected processing pathway.

Abstract: A job can be used to produce a printed document by first processing it with a digital front end (DFE) which then sends printing information to a marking engine. A job has required functionality and a DFE has supplied functionality. When the supplied functionality does not include the required functionality, the job must be modified or abandoned. When using certain DFEs, the job can be modified to include programming data. When processing the modified job, the DFE gains functionality through changed programming. The DFE then has sufficient functionality, which contains the required functionality, that it can process the modified job.

Abstract: A method for optimizing the performance of a network printer comprising: scanning the input print data stream in a raster image processor and processing the entire input print data stream in a page parallel processing pathway where said input print data stream is in a page independent form; otherwise selecting the processing pathway corresponding to a lower processing time period and thereafter processing the entire input print data stream using said selected processing pathway.

Abstract: A job can be used to produce a printed document by first processing it with a digital front end (DFE) which then sends printing information to a marking engine. A job has required functionality and a DFE has supplied functionality. When the supplied functionality does not include the required functionality, the job must be modified or abandoned. When using certain DFEs, the job can be modified to include programming data. When processing the modified job, the DFE gains functionality through changed programming. The DFE then has sufficient functionality, which contains the required functionality, that it can process the modified job.