Siemens Aktiengesellschaft

Wolfgang Meier

Jakob Huber

Norbert Wehn

Soeren Hein

A decoder has a first memory for storing a coded first image. The image is stored in the first memory until it has been decoded at least twice. The results of the decoding operations can be supplied to a playback device. The invention makes it possible to dispense with an output frame buffer for the decoded first image, and thus only little memory is required in the decoder.

Video decoder and corresponding method

In a method for hierarchic logic verification of VLSI circuits a hierarchic layout circuit (1234') is acquired from the physical layout of the respective VLSI circuit using an extraction program is compared to a hierarchic logic plan circuit (1234) defined by an appertaining logic plan. They are being compared such that both the layout circuit as well as the logic plan circuit are transformed independently of one another into equivalent circuits (1234') having a respectively minimum plurality of terminals for all sub-circuits and non-isomorphic hierarchies are brought into coincidence during the circuit comparison by temporary, partial expanding. The advantage thereby achieved is that no explicit user rules with respect to the method execution are required, and that substantially less memory space and a significantly shorter processing time are required for the implementation of the method than given non-hierarchic methods.

Method for hierarchic logic verification of VLSI circuits

In a monolithically integratable microwave attenuation element, the attenuation is switchable between various, discrete values and the signal experiences only a small phase shift when switched between the individual attenuation values. The drain-source paths of field effect transistors (Q1, Q2, Q3) in the attenuation element are arranged in a PI configuration. Resistors (R11, R22, R33) are connected parallel to the drain-source paths of the field effect transistors (Q1, Q2, Q3) that are arranged in PI configuration.

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Munich, Germany

Wolfgang Meier