摘要:
A lighting system (100) comprising a central lighting device (111), at least one satellite lighting device (121, 131), and a controller (141) for adjusting light settings, is provided. The controller is arranged for transmitting, in response to a user request (140), an association request over a first communication link (142). The central lighting device is arranged for receiving the association request and re-transmitting the association request over a second communication link by means of coded light (112). The satellite lighting device is arranged for transmitting, in response to receiving the association request, its identifier to the central lighting device. The identifier is only transmitted if an association process is enabled. The association process is enabled, in response to a user request, during a limited time period. The central lighting device is further arranged for associating, in response to receiving the identifier, the satellite lighting device with the central lighting device.
摘要:
A method of synchronizing a data processing device (9-11) with a data processing system (1) to which the data processing device (9-11) has an intermittent connection, includes determining a first context based on variable data (30). A second context, valid over a longer term than the first context, is determined based on further data (28). Both the first and the second context are used to control a synchronization process during which data is communicated between the data processing device (9-11) and the data processing system (1), and which results in at least one of them obtaining a target set of data (31,32,33). The target set of data is determined in such a way that its composition is based on both the first and the second context.
摘要:
The invention relates to a recording medium (2), particularly an optical recording disk, which comprises at least one record track (3) having a physical volume (32) with addressable blocks (4). The physical volume (32) is divided into spare area (36;38) and user-accessible logical volume (37). A single spare area (36) is only located at the beginning of the physical volume (32), or a single spare area (38) is only located at the end of the physical volume (32). Alternatively, a first spare area (36) is located at the beginning of the physical volume (32) and a second spare area (38) is located at the end of the physical volume (32). Thus, the logical volume (37) is physically contiguous, that is, not interrupted by any spare area. The recording medium according to the invention can be used both for storing computer data as well as for recording audio and/or video information. The invention also relates to methods and a device for use in conjunction with the recording medium.
摘要:
A dynamic memory buffer buffers between software applications executing on a processor and data generating and/or receiving devices in communication through the buffer with the applications. The buffer includes buffer manager for controlling allocation of one or more portions of the buffer to the applications so as to reduce power dissipation occurring within the devices.
摘要:
Broadcast data is transmitted in first time slices. Event data is transmitted in second time slices, wherein a predetermined number n−1 of consecutive second time slices is redundant. Therefore a receiver receiving such a broadcast need only receive one of n slices of event data. Therefore when the receiver is in standby mode, it need only be activated to receive 1 in n of second time slices to receive event data. Therefore the receiver is deactivated for a longer period, thus saving power consumption.
摘要:
The present invention relates to a method of changing between a plurality N of distinct services, e.g. television channels, receivable on a receiving unit, such as a mobile phone/cellular phone, a personal digital assistant (PDA), a handheld television unit, or similar devices. The receiving unit is adapted to receive the plurality of services in a time slicing mode with services being arranged in a certain time slice sequence. The receiving unit is capable of receiving a first service (S1). When “zapping” from the first service to a second service, the second service (S4) being chosen is the currently next service in time within the time slice sequence so as to minimize the time (t2) between service changes. Thereby, a fast method of changing between services is provided in a simplified manner, the speed of change reaching the theoretical maximum when using time slicing.
摘要:
A recording medium (D) comprises a file system area (FSA), a data area (DAA) and an initial defect management area (DMA). A system comprises a drive (DR) for writing data (DA) to or reading data (DR) from the data area (DAA) or the defect management area (DMA), and a host (H) for sending data (DA) to or for receiving data (DA) from the drive (DR) when the drive (DR) is in a mounted state wherein a file system (FS) in the file system area (FSA) is available to the host (H). The method of accessing such a recording medium (D) detects (S1) whether a shortage of free space in the defect management area (DMA) is to be expected, and if yes, allocates (S2) supplemental defect management area (SDMA) at the cost of the data area (DAA). The file system (FS) is adapted to reflect the latest state of available data area (DAA) and the allocated supplemental defect management area (SDMA). The file system (FS) is adapted during an adaptation period related to a mounting or an unmounting phase wherein the host (H) mounts or unmounts the drive (DR). The host (H) unmounts or releases the drive (DR) when no further data has to be exchanged between the host (H) and the drive (DR).
摘要:
A storage medium for storing digital information is disclosed. The storage medium comprises a label comprising a light addressable electrophoretic ink layer. Further, a method for labeling a storage medium provided with an electrophoretic ink label is disclosed. The method comprises the steps of applying a voltage between a first and a second electrode being arranged on mutual sides of a electrophoretic ink layer; irradiating selected pixel areas of the electrophoretic ink for addressing a change of visual state. Further, a recorder for an optical storage medium and a label writer for labeling an optical storage medium are disclosed. The recorder and the label writer comprise a light source and a charging device. The charging device is arranged to apply an electric field across an electrophoretic ink layer of the storage medium, and the light source is arranged to write a label on said storage medium by addressing pixel areas of said electrophoretic ink layer.
摘要:
A lighting system (100) comprising a central lighting device (111), at least one satellite lighting device (121, 131), and a controller (141) for adjusting light settings, is provided. The controller is arranged for transmitting, in response to a user request (140), an association request over a first communication link (142). The central lighting device is arranged for receiving the association request and re-transmitting the association request over a second communication link by means of coded light (112). The satellite lighting device is arranged for transmitting, in response to receiving the association request, its identifier to the central lighting device. The identifier is only transmitted if an association process is enabled. The association process is enabled, in response to a user request, during a limited time period. The central lighting device is further arranged for associating, in response to receiving the identifier, the satellite lighting device with the central lighting device.
摘要:
A device and a method for managing power consumption of a plurality of data processing units. A scheduler (280) schedules a first process step for a first data processing unit (200) consuming a high power within a first deadline and a second process step for a second data processing unit (240) also consuming a high power within a second deadline. The scheduler further schedules the first process step and the second process step such that the two process steps do not occur concurrently thereby reducing the peak power draw from a power supply while preserving deadlines. This is particularly beneficial in battery-operated equipment, such as portable electronic multimedia devices, since peak power drain has been found to be an important factor in determining the battery capacity.