Zottmann
Andreas Zottmann, Erlangen DE
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20090290596 | METHOD AND APPARATUS FOR GENERATING VIRTUAL CLOCK SIGNALS - The invention includes a method and apparatus for generating virtual clock signals for differing hierarchies in a communication system conveying data frames of differing hierarchies. Specifically, a method according to one embodiment of the invention includes receiving data frames of a first hierarchy, receiving at least one input clock signal, and generating a virtual clock signal using the at least one input clock signal and a clock enable signal. The clock enable signal is generated using at least one of a data rate ratio and a clock rate ratio. The virtual clock signal is adapted for converting at least a portion of the data frames of the first hierarchy to data frames of a second hierarchy. The frequency of the virtual clock signal is determined by applying the clock enable signal to a common clock signal. | 11-26-2009 |
Andreas Bernhard Zottmann, Lauf DE
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20100153828 | Method and apparatus for error detection in a communication system - A method processes a data packet in a first sequence of disjoint original segments of the same length. The method includes modifying a first of the original segments of the first sequence by modifying one or more symbols therein. A start of the data packet is located in the first of the original segments and is positioned after a first digital data symbol therein. The method also includes modifying a last of the original segments of the first sequence by modifying one or more digital data symbols therein. An end of the data packet is located in the last of the original segments and is located before the last digital data symbol therein. The method also includes determining a remainder sequence by effectively performing a polynomial division on a second sequence of disjoint segments that are derived from the first sequence. Each segment of the second sequence corresponds to and is derived from one of the original segments of the first sequence. The segments of the second sequence have the length of the original segments of the first sequence. A first of the derived segments of the second sequence is the modified first of the original segments. A last of the derived segments of the second sequence is derived from the modified last of the original segments. | 06-17-2010 |
Andreas Bernhard Zottmann, Erlangen DE
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20150039977 | Method And Apparatus For Error Detection In A Communication System - A method processes a data packet in a first sequence of disjoint original segments of the same length. The method includes modifying a first of the original segments of the first sequence by modifying one or more symbols therein. A start of the data packet is located in the first of the original segments and is positioned after a first digital data symbol therein. The method also includes modifying a last of the original segments of the first sequence by modifying one or more digital data symbols therein. An end of the data packet is located in the last of the original segments and is located before the last digital data symbol therein. The method also includes determining a remainder sequence by effectively performing a polynomial division on a second sequence of disjoint segments that are derived from the first sequence. Each segment of the second sequence corresponds to and is derived from one of the original segments of the first sequence. The segments of the second sequence have the length of the original segments of the first sequence. A first of the derived segments of the second sequence is the modified first of the original segments. A last of the derived segments of the second sequence is derived from the modified last of the original segments. | 02-05-2015 |
Detlef Zottmann, Gifhorn DE
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20080236308 | Dummy body for testing sitting, reclining and supporting cushions of upholstered furniture - A dummy body for testing of sitting, reclining and supporting cushions of upholstered sitting and reclining furniture, by means of which a complex interaction of various muscles can be simulated, true to reality, in a variable way, and which is distinguished by a cost-effective and simple construction. The worn parts can be replaced quickly and cost-effectively. The dummy body has a plurality of discs arranged adjustably next to one another and having different material properties in terms of the degree of hardness. Therefore, the muscle hardness of a dummy body to be simulated can be set variably according to a predetermined test program. | 10-02-2008 |
Harald Zottmann, Kleinostheim DE
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20100284691 | OPTICAL ROUTING DEVICE AND OPTICAL NETWORK USING SAME - The invention pertains to methods, apparatus, and systems optical of networking using tunable receivers, optical blocking elements selectively placed in the network, and optical routing elements comprised of passive elements, such as optical couplers and splitters. The routing elements have a plurality of ports and comprise passive elements such as couplers and splitters configured so that input light received at any port of the element is output from each of the other ports of the element, but not at port at which it was input. | 11-11-2010 |