Abstract:
In multimedia method a screen-based host with processing and I/O facilities interacts with distributed items that are arranged for storing and exchanging digital information with the host. In particular, under proximity conditions the items exchange accordingly with the host, but without requiring formatted berth facilities of the host. The various items through associated self-identifying evoke specific iconizing by the host for signalling to a user an associated service field. The host allows a user person to activate data processing operations with respect to the service field. During proximity conditions the item keeps abreast of host-generated results relevant to its service field. The host allows free styling of the items with respect to their physical shape.
Abstract:
A method is described for setting an optimum write power for recording information on an optical recording medium. A series of test patterns (20null, 21null, 22null) is written on the medium, the test patterns being written with different write powers. The values of the write power in subsequent test patterns form a symmetrical pattern. On reading the test patterns, the modulation of each read signal is determined. An optimum value of the write power is determined from the modulations.
Abstract:
A mirror projection system for use in a step-and-scan lithographic projection apparatus in which a mask pattern (15) is repetitively scan-imaged on a number of areas of a substrate (20) by means of a beam (b) of EUV radiation having a circular segment-shaped cross-section. This system, which is easier to manufacture at lower cost than a projection system with six or more imaging mirrors, has only five imaging mirrors (5-9) with a good numerical aperture and an acceptable image-ringfield width. An EUV lithographic projection apparatus provided with the new projection system has a wafer throughput which is approximately 50% higher than that of an apparatus provided with a six-mirror projection system. Moreover, it has a compact construction.
Abstract:
An encoding circuit transforms a picture signal into blocks of, for example, 8*8 coefficients, in which each block of coefficients is read motion- adaptively. In the case of motion within a sub-picture, the block of coefficients is read in such an order that the obtained series of coefficients includes, as it were, two interleaved sub-series. The first series starts with a dc component. In a first embodiment, the second series starts with the most relevant motion coefficient. In a second embodiment, two interlaced sub-fields are separately transformed and the second series also starts with a dc coefficient. As a result, the coefficients are transmitted as much as possible in their order of significance. This particularly produces the largest possible clusters of zero value coefficients. Such clusters are transmitted as one compact run-length code so that an effective bit rate reduction is achieved, also for moving pictures.
Abstract:
In a module tape (1) comprising modules (2) and comprising a carrier layer (19) to which a plurality of contact-bound-mode module contact zones (9, 10, 11) are attached at the location of a first layer side (20) and to which a plurality of contactless-mode module contact zones (14, 15) are attached at the location of a second layer side (22), the contactless-mode module contact zones (14, 15) are formed by conductor zones deposited on the carrier layer (19) by means of a printing method.
Abstract:
A sliding electrical switch (10) for use in a garment (32) has two spaced elongate flexible surfaces (16, 18), at least one electrical contact on each surface (22a, b, c, d, e, f), and a slider (20) slidable along the surfaces to cause electrical connection between the contacts. There may be a number of spaced contacts (22a, b, c, d, e, f), the slider (20) acting as a selector switch; or there may be two continuous spaced contacts (96, 98), movement of the slider (90) providing a variation in resistance. The slider can be a bead (20) running on cords (16, 18) attached to the edges of spaced pieces of fabric (14, 18); or a buckle (42) sliding on a strip (50); or a zip fastener traveller (66), adjacent teeth (64) of the zip being electrically connected (68); or a bead (90) running on lengths (82, 84) of flexible tubing with internally conductive strips (96, 98).
Abstract:
An activated carbon air filter for use in room air cleaners and the like comprises a corrugated paper structure formed of substantially non-porous paper, preferably Kraft paper, whose surface is coated with carbon by means for example of a dipping process in which the structure is immersed in an aqueous slurry containing carbon and a binder. Through use of a particular paper thickness and channel dimensions, a highly efficient, low volume, long lifetime air cleaning filter is obtained.
Abstract:
The components of a portable personal audio system include first and second audio signal source devices, such as an MP3 player (14) and telephone (16). These are connected via respective leads (12) to a control and switching stage (22), and from there to left and right audio output devices (26). User input to effect operation of the control and switching stage (22) selectively directs audio signals from one or both of the signal source devices (14, 16) to a selected one or ones of the left and right audio output devices (26).
Abstract:
A radio communication system comprising a primary station and a plurality of secondary stations has a communication channel for the transmission of information from a secondary station to the primary station. The secondary station adjusts its output power in response to power control commands received from the secondary station, and can adjust its output transmission power at a plurality of different rates. The primary station can instruct the secondary station which of the plurality of rates it should use. The primary station determines the optimum rate for the secondary station to use by analysing the sequence of power control commands that it sends to the secondary station, and instructs the secondary station accordingly.