Abstract: A method is provided for securing a mobile communications device to a level required for accessing a network, for example a secured enterprise network, by means of a public network such as the Internet. A mobile communications device is also provided incorporating functionality to enable centralized control over the configuration of the mobile device and thereby to control the actions of users of that device and of applications software that may be installed and executed on that device. Furthermore, a system is provided to implement a mobile communications infrastructure for an enterprise network with centralized control over the configuration of mobile communications devices within the system.

Abstract: In one embodiment, a method includes selecting a first video encoding task of the plurality of video encoding tasks, the first video encoding task having a first dependency upon a second video encoding task of the plurality of video encoding tasks. The method includes determining whether to break the first dependency and performing the first video encoding task based on the determination of whether to break the first dependency.

Abstract: A method is provided for securing a mobile communications device to a level required for accessing a network, for example a secured enterprise network, by means of a public network such as the Internet. A mobile communications device is also provided incorporating functionality to enable centralised control over the configuration of the mobile device and thereby to control the actions of users of that device and of applications software that may be installed and executed on that device. Furthermore, a system is provided to implement a mobile communications infrastructure for an enterprise network with centralised control over the configuration of mobile communications devices within the system.

Abstract: Video is encoded by applying a vertically and horizontally separable transform to provide a block of transform coefficients; and quantizing the transform coefficients. Prior to quantization, a filtering operation is performed on the block of transform coefficients, the filtering operation applying a rotation to pairs of coefficients in the block. Each pair of coefficients may be symmetrically positioned with respect to the leading diagonal of the block.

Abstract: Video is encoded by applying a vertically and horizontally separable transform to provide a block of transform coefficients; and quantising the transform coefficients. Prior to quantisation, a filtering operation is performed on the block of transform coefficients, the filtering operation applying a rotation to pairs of coefficients in the block. Each pair of coefficients may be symmetrically positioned with respect to the leading diagonal of the block.

Abstract: A semiconductor device comprising a memory cell, which memory cell comprises: a write transistor (TWR) a read transistor (TRE), a sense transistor (TSE) provided with a sense transistor gate, a first sense transistor electrode (7) and a second sense transistor electrode (3), the first sense transistor electrode (7) being connected to a read transistor electrode (9), the sense transistor gate being arranged as a floating gate (FG), said floating gate being separated from the second sense electrode (3) by a sense transistor oxide layer (THINOX) and from a write transistor electrode (1) by a tunnel oxide layer (TUNOX); a voltage source arrangement (5, Vsi_p, Vsi_e) to provide the second sense transistor electrode (3) with a predetermined voltage during programming and erasing, such that no stress induced leakage current occurs in the sense transistor oxide layer (THINOX).

Abstract: A precursor, in gel form, of an oxide having the formula (I), BaO.n(Al.sub.2x Cr.sub.2y O.sub.3), where 1.ltoreq.n.ltoreq.6.6, (x+y)=1, and 0.ltoreq.y.ltoreq.0.5, said oxide being derivable from the precursor gel by the application of heat, is prepared by mixing a solution of a barium salt with a solution of an aluminium salt or a solution of an aluminium salt and a solution of a chromium salt, and polymerising the mixture to produce said precursor gel. A mixture suitable for firing to an oxide of the formula (II), BaO.m(Al.sub.2x Cr.sub.2y O.sub.3), where 4.6.ltoreq.m.ltoreq.6.6; (x+y)=1; and 0.ltoreq.y.ltoreq.0.5, comprises at least one of:(a) barium oxide;(b) a clean thermal precursor of barium oxide; and(c) barium mono-aluminate, BaO.Al.sub.2 O.sub.3 ; with at least one of:(A) alumina, Al.sub.2 O.sub.3 ;(B) hydrated forms of alumina, such as boehmite, Al.sub.2 O.sub.3.H.sub.2 O; and(C) a clean thermal precursor of aluminium oxide; and, where y is not zero, with at least one of(D) chromium(III) oxide, Cr.