Carl Zeiss Microscopy Gmbh

Carl Zeiss Microimaging Gmbh

Andreas Kuehm

Nico Presser

Joerg Engel

Gunter Moehler

Hardy Thomas Koebe

Forwarding devices and corresponding methods are provided in which a plurality of input data streams are distributed among a plurality of output data streams on the basis of synchronization marking. One example method of forwarding data includes receiving a plurality of input data streams, where at least some of the input data streams include synchronization markers indicating which data of the input data streams are to be output synchronously, in one or more common time segments. Further included in the method is distributing the data to be output synchronously among a plurality of output data streams on the basis of the synchronization markers. The distributing is carried out in such a way that data which, according to the synchronization markers, are to be transmitted in a common time segment are provided in the same time segment in all the output data streams to which the data are to be assigned.

Method and apparatus for forwarding data

A peripheral interface for use with a control computer and a peripheral device. The peripheral interface has a controller receiving an input data stream from the control computer and delivering an output data stream to the peripheral device, the controller obtaining an instruction from the input data stream for a modification of the output data stream. Prior art devices transfer data streams for peripheral devices blockwise by means of DMA using peripheral interfaces. In conventional peripheral interfaces, a burdensome real-time operating system must be used on the control computer in order have a sufficiently short reaction time to bring about a continuous, uninterrupted data stream. The invention achieves the object using a non-real-time operating system. A data stream is generated in the control computer, comprising control data (B) for the peripheral device and a segment (SOS) having spare control data to be output in case of a break in the data stream, and a leading spare data marking, particularly a jump command (JMP) past the spare control data. The data stream is received in the peripheral interface, and output to the peripheral device, wherein an instruction for a modification of the output of the data stream is identified in the received data stream, and the data stream is modified for output according to the identified instruction.

Peripheral interface, data stream, and data transfer method

A peripheral interface and process for data transfer, especially for laser scanning microscopes. The peripheral interface permits a gap-free transfer of data with high transmission speed using a non-real-time-enabled operating system of the control computer. A peripheral connection for a peripheral device and a control unit serving for one-way transmission of a predetermined amount of data from the control computer to the peripheral device and/or vice versa accesses via a system bus of a control computer, a work memory region of the control computer serves as buffers preassigned to it, where the control unit prepares for the control computer a progress report of the transfer for retrieval and the control unit of the control computer is informed of the progress of the processing of the buffer independently of the transfer.

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Jena, Germany

Andreas Kuehm