Abstract: A data storage system comprises a data storage device (2) that comprises a first file system (4) of a first type and a second file system (70, 72, 74, 76, 78) of a second, different type, and a file system control means (92) for controlling file system operations, wherein the file system control means (92) is configured to receive requests to write files to the first or second file systems, and to write to the second file system (70, 72, 74, 76, 78) in response to substantially all requests to write files that have at least one predetermined file name property to the first or second file system.

Abstract: A data storage system includes a data storage device with a first file system of a first type. At least one file stored in the first file system comprises a second file system of a second, different type. The data storage system is configured to write data to the second file system in a power-safe manner.

Abstract: A data storage access device for providing access by an external device to data stored according to a first file system on physical storage, comprises a file system interface operator (8) for providing a file system interface to the external device, wherein the file system interface represents data stored on the physical storage according to the first file system as being stored according to a second file system.

Abstract: A data storage system comprises a data storage device (2) that comprises a first file system (4) of a first type and a second file system (70, 72, 74, 76, 78) of a second, different type, and a file system control means (92) for controlling file system operations, wherein the file system control means (92) is configured to receive requests to write files to the first or second file systems, and to write to the second file system (70, 72, 74, 76, 78) in response to substantially all requests to write files that have at least one predetermined file name property to the first or second file system.

Abstract: A data storage system comprises a data storage device (2) that comprises a first file system (4) of a first type, wherein at least one file (8) stored in the first file system (4) comprises a second file system (70, 72, 74, 76, 78) of a second, different type; and a file system control means (92) for controlling file system operations performed on the file systems, wherein the file system control means (92) is configured to write data to the second file system (70, 72, 74, 76, 78) in a power-fail-safe manner.

Abstract: The invention provides a communication device for emulating a behavior of a navigation device in response to executing a device firmware program installed on the navigation device. The communication device comprises a provider for providing information relating to the device firmware program, a determiner for determining whether a current firmware program installed on the communication device corresponds to the device firmware program installed on the navigation device and a processor for executing the current firmware program on the communication device in order to emulate the behavior of the navigation device if the current firmware program corresponds to the device firmware.

Abstract: The invention provides a processing device for detecting a certain computer command in a string of characters representing a uniform resource identifier, the certain command comprising a predefined command header, the command header being followed by a command name from a plurality of predefined command names. The processing device comprises a determiner for determining whether the string of characters comprises the predefined command header, the determiner being further configured to determine whether a sub-string of characters following the command header comprises the command name if the string of characters comprises the predefined command header and a provider for providing the predefined command header and the command name if the command header comprises a command name as the certain computer command.

Abstract: The invention provides a method for providing a cryptographically signed command, the command comprising a command name and at least one command argument with generating a cryptographic signature of the command name and composing the cryptographically signed command using the command name, the signature and the at least one command argument.

Abstract: The invention provides a communication device with a programmably arranged first means, a programmably arranged second means and a programmably arranged third means. The programmably arranged first means requests the programmably arranged second means to transmit the certain command to a non-existing network address, wherein the programmably arranged second means informs the programmably arranged third means about the request to transmit the certain command. The programmably arranged third means executes the certain command in response to the information indicating the request.