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Homm

Daniel Homm, Erlangen DE

Patent application number	Description	Published
20080219355	APPARATUS AND METHOD FOR PRODUCING A DATA STREAM AND APPARATUS AND METHOD FOR READING A DATA STREAM - An entropy encoder includes an apparatus for producing a data stream which comprises two reference points, of code words of variable lengths, the apparatus comprising a first device for writing at least a part of a code word into the data stream in a first direction of writing, starting from a first reference point, and a second device for writing at least a part of a code word into the data stream in a second direction of writing, which is opposite to the first direction of writing, starting from the other reference point. In particular, when a raster having a plurality of segments is used to write the code words of variable lengths into the data stream, the number of the code words which can be written starting at raster points is doubled, in the best case, such that the data stream of code words of variable lengths is robust toward a propagation of sequence errors.	09-11-2008

Daniel Homm, Nurnberg DE

Patent application number	Description	Published
20120128151	Authentication of Data Streams - The present invention relates to techniques for authentication of data streams. Specifically, the invention relates to the insertion of identifiers into a data stream, such as a Dolby Pulse, AAC or HE AAC bitstream, and the authentication and verification of the data stream based on such identifiers. A method and system for encoding a data stream comprising a plurality of data frames is described. The method comprises the step of generating a cryptographic value of a number N of successive data frames and configuration information, wherein the configuration information comprises information for rendering the data stream. The method then inserts the cryptographic value into the data stream subsequent to the N successive data frames.	05-24-2012

Manfred Homm, Buehl-Neusatz DE

Patent application number	Description	Published
20090215584	HYDRAULIC CONTROL FOR A DUAL CLUTCH TRANSMISSION - A dual clutch transmission which has a first clutch, actuated by a first hydraulic cylinder, a second clutch, actuated by a second hydraulic cylinder, shift devices for shifting gears, which are actuated by respective hydraulically operated cylinders, a hydraulic energy source for supplying the hydraulic cylinders and the hydraulically operated cylinders with hydraulic energy and a third clutch that is actuated by a third hydraulic cylinder.	08-27-2009
20090215585	HYDRAULIC CONTROL FOR A DUAL CLUTCH TRANSMISSION - A dual clutch transmission which has a first clutch, actuated by a first hydraulic cylinder, a second clutch, actuated by a second hydraulic cylinder, shift devices for shifting gears, which are actuated by respective hydraulically operated cylinders, and a hydraulic energy source for supplying the hydraulic cylinders and the hydraulically operated cylinders with hydraulic energy. The hydraulic energy source has a first pump, a second pump and an electric drive driving the second pump.	08-27-2009

Manfred Homm, Buhl-Neusatz DE

Patent application number	Description	Published
20080256942	Hydraulic system and automatic gearbox - A hydraulic system including a multi-flow hydraulic pressure supply unit, especially a dual-flow hydraulic pressure supply unit, such as a pump, by which a volumetric flow of pressurized fluid is supplied to a hydraulic-fluid-operated device. A valve arrangement is provided either for switching between the individual pump flows or for interconnecting the individual pump flows.	10-23-2008
20080283355	Hydraulic system for a vehicle - A hydraulic system for actuating a clutch of a vehicle, in particular a commercial vehicle, having a pressure reducing valve under system pressure for pressuring the clutch with an actuating pressure in normal operation, where at least one additional reserve valve assembly is provided for emergency operation. In addition, a hydraulic system is proposed for actuating a variator of a CVT transmission of a vehicle, in particular a commercial vehicle, having at least one pressure reducing valve for pressuring a first shifting chamber and a second shifting chamber of the pulleys with an adjusting pressure to set a transmission ratio in normal operation, where at least one selector valve is connected to the first shifting chamber and the second shifting chamber of the respective pulleys.	11-20-2008
20090088297	Pressure medium supply unit for a clutch and an automatic transmission - A pressure medium supply unit for a hydraulic system of a motor vehicle that includes a clutch requiring a high hydraulic pressure and a low volumetric flow rate of hydraulic fluid for operation, and an automatic transmission requiring a low hydraulic pressure and a high volumetric flow rate of hydraulic fluid for operation. A single hydraulic pump is provided to supply hydraulic fluid to both the clutch and the transmission.	04-02-2009
20090139827	Clutch control device - A clutch control device for controlling the operation of a hydraulically operated clutch with a flow control valve. The control device includes a volume flow regulating valve that enables both volume flow regulated filling and volume flow regulated emptying of a hydraulic clutch positioning element, to provide rapid and precise operation of the clutch.	06-04-2009