Gesellschaft Fur Strahlen- Und Umweltforschung Mbh (gsf)

Gesellschaft Fur Strahlen- Und Umweltforschung Gmbh

Gesellschaft Fur Strahlen

Karl-Heinz Schmidt

Wilhelm Waidelich

Georg Menache

A method of protecting programs and data in computers against unauthorized access and modifications employs a programmable hardware circuit to monitor memory regions of a computer. The memory regions are divided into different access levels, and the circuit is programmed to permit access only to predetermined regions. If an unauthorized access is attempted by a program, an address corresponding to the program location initiating the unauthorized access is detected and the program is stopped. This ensures that the procedures for protecting the operating system cannot be circumvented to gain unauthorized access to data of any type. After programming of the circuit is completed, the programming cannot be changed except by actuation of a hardware switch or by re-starting the computer. Removal of the circuit will cause short circuits, thus making it impossible to shut the circuit off without being detected.

Method of protecting programs and data in a computer against

A method for real video time size selection for objects represented as video images which are to be filtered out so as to be classified as to their shape, including the steps of: recording the video image with a scanning recording beam; digitalizing the video image; providing at least one selected mask representing a selected object image shape; examining the digitalized image, pixel by pixel, with the selected mask while displacing the selected mask over the video image in synchronism with the recording beam; and, upon the occurrence of a given degree of coincidence between a selected section of the image and the selected mask, indicating detection of the object as such.

Real video time size selection mode

An electronic camera combined with processing circuitry for observing the movement of particles in a sedimentation cell or the like, tracking movement of selected particles, and determining their velocity and/or velocity distribution. The electronic circuit includes an electronic masking circuit for enabling the selection and tracking of individual particles in the image received by the camera.

Growing community of inventors

Aying, Germany

Karl-Heinz Schmidt