Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Fridrich
Anna C. Fridrich, Basel CH
Daniel Fridrich, Neuotting DE
| Patent application number | Description | Published |
|---|---|---|
| 20110269875 | Plasticizer-Containing Hardening Accelerator Composition - The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction of the water-soluble calcium compound with the water-soluble silicate compound being carried out in the presence of an aqueous solution which contains a water-soluble comb polymer suitable as a plasticizer for hydraulic binders. The invention concerns also a composition of calcium silicate hydrate and comb polymer, its use as hardening accelerator and for the reduction of the permeability of hardened compositions. | 11-03-2011 |
Heinz Fridrich, Leobersdorf AT
| Patent application number | Description | Published |
|---|---|---|
| 20110118017 | Electronic Gaming Device with a Light-effect Arrangement - The present invention is a gaming machine such as a slot machine having a housing with a light-effect arrangement for creation of light effects. The gaming machine has at least one reflector arranged on the housing such that the reflector is positioned with respect to a remote light source to reflect a light beam from the remote light source at least partly towards the front of the housing. The housing may include a light source, which may be a strip of LED lights that emits a light beam. This arrangement is particularly beneficial in modern gaming devices. A higher degree of design freedom relative to light source arrangement is achieved through the use of reflectors and the light source. | 05-19-2011 |
Jeff Fridrich, Chicago, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20080217269 | Angled Support for Displaying Products - A support structure may be mounted to an existing vertical support. In an embodiment, the support structure may include a plurality of horizontal support members. Two or more vertical uprights are mounted to the horizontal supports. The vertical uprights and one of the horizontal support members provide channels for retaining a peg board panel in position. The support structure may be configured so as to cause the peg board panel to at an angle compared to the vertical supports. Multiple support structures may be coupled together to provide runs of peg board panels. Furthermore, the peg board panel may include a graphic that correspond to products being supported by the peg board panel. | 09-11-2008 |
Jessica Fridrich, Vestal, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20080205780 | LOSSLESS EMBEDDING OF DATA IN DIGITAL OBJECTS - Current methods of embedding hidden data in an image inevitably distort the original image by noise. This distortion cannot generally be removed completely because of quantization, bit-replacement, or truncation at the grayscales 0 and 255. The distortion, though often small, may make the original image unacceptable for medical applications, or for military and law enforcement applications where an image must be inspected under unusual viewing conditions (e.g., after filtering or extreme zoom). The present invention provides high-capacity embedding of data that is lossless (or distortion-free) because, after embedded information is extracted from a cover image, we revert to an exact copy of the original image before the embedding took place. This new technique is a powerful tool for a variety of tasks, including lossless robust watermarking, lossless authentication with fragile watermarks, and steganalysis. The technique is applicable to raw, uncompressed formats (e.g., BMP, PCX, PGM, RAS, etc.), lossy image formats (JPEG, JPEG2000, wavelet), and palette formats (GIF, PNG). | 08-28-2008 |
| 20090154809 | Method and apparatus for identifying an imaging device - A new technique for identifying whether images are derived from a common imager, e.g., a camera, or other imaging device such as a scanner, based on the device's measured or inferred reference noise pattern, a unique stochastic characteristic of all common digital imaging sensors, including CCD, CMOS (Foveon™ X3), and JFET. The measured or inferred noise pattern of two images may be extracted and then cross correlated, with a high correlation being consistent with a common imager. Various preprocessing techniques may be used to improve tolerance to various types of image transform. It is also possible to perform the analysis without explicit separation of inferred image and inferred noise. | 06-18-2009 |
| 20090257671 | Method and apparatus for identifying an imaging device - A new technique for identifying from images a camera, or other imaging device such as a scanner, is based on the device's reference noise pattern, a unique stochastic characteristic of all common digital imaging sensors, including CCD, CMOS (Foveon™ X3), and JFET. First, one determines from images the sensor's reference pattern noise, which uniquely identifies each sensor. To identify the sensor from a given image, the presence or absence of the reference pattern noise in the image under examination is established using a correlation detector or other means. | 10-15-2009 |