Abstract: An electric field object sensing system uses a charge pumping circuit to provide a voltage over a capacitor that varies dependent upon the capacitive coupling between a transmitter electrode and a receiver electrode. The output of the charge pump is preferably fed to a high impedance read-out means, such as an analog-digital converter (ADC). The system is preferably implemented in CMOS and integrated in control circuits of electronic products.

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: 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: 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: 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: A method is described of encoding pixel color values for a digital video image frame in which each different color within the image is assigned a color value. A predominant color is identified for the image frame and, in a first embodiment (FIG. 5), each pixel having a color other than the predominant color is separately coded as its respective color value (0010 to 1111), with runs of three or more successive pixels of the predominant color being run-length encoded. A further code (0000 0011 cccc), similar in arrangement to that indicating a run, is provided to allow a change in the specified predominant color during the course of a frame. In a further embodiment, runs of all colors are run-length encoded but with a shorter coding scheme for runs of the predominant color or, in a still further embodiment, a small range of predominant colors. A principle use for these coding schemes is to improve efficiency of coding for certain classes of image material.

Abstract: A method and apparatus for generating and distributing program code written initially in terms of a virtual processor (at authoring suite 10-18) and then translated (24) to the native code of a target processor (26) system. In order to improve efficiency, the virtual machine code includes pseudo-instruction generated and inserted in the code stream by the compiler stage (18) of the authoring suite. These pseudo-instruction are not translated to the native code of the target processor but instead provide guidance other than selection of registers for the operation of the translation process (24) to improve its efficiency.