Abstract: A digital circuit arrangement for influencing the frequency response of a digital audio signal as a function of frequency and/or amplitude, in which the input signal of the digital circuit arrangement is applied to a signal filter (3) having variable filter coefficients, the output signal of the signal filter (3), after addition to the input signal of the digital circuit arrangement, represents the frequency response-influenced output signal of the digital circuit arrangement, and the coefficients for the signal filter (3) are selected in dependence on the output signal of a control circuit to which the output signal of the signal filter (3) is applied, and which includes a control filter (7), a rectifier (8), a pulse shaper stage (9), a logarithmic circuit (12) and a circuit for determining the coefficients.

Abstract: MR imaging apparatus includes a magnet (1) for generating in an examination zone (3) a uniform, steady magnetic field having substantially parallel lines of force extending in a first direction (Z), a gradient coil system (5) for generating a magnetic gradient field, and an RF coil system for generating RF pulses and for receiving MR signals. The apparatus also includes devices (25,27,31) for generating data from the MR signals, and a reconstruction unit (39) for reconstructing an MR image of the examination zone (3) from a set of the data. A patient support system includes a table top (7) drive means (11) configured for displacement of the table top in the first direction (Z), and a connection (43) for coupling the drive means and the control unit (29). The magnet (1) has a generally toroidal-shaped housing (15) surrounding a bore (17) and has a longitudinal axis (19) extending substantially parallel to the first direction (Z).

Abstract: A projection lens for use with LCD or DMD panels is provided. The lens has three lens units, the first unit having a weak power, at least one aspheric surface, a high dispersion negative lens element, and a low dispersion positive lens element, the second lens unit having a positive power, and the third lens unit having a negative power and an overall meniscus shape. The projection lens satisfies the following relationships:0.3>D.sub.23 /f.sub.0 >0.1,.vertline.f.sub.1 .vertline./f.sub.0 >1.3, andBFL/f.sub.0 >0.3where (i) f.sub.0 is the effective focal length of the combination of the first, second, and third lens units; (ii) f.sub.1 is the effective focal length of the first lens unit; (iii) D.sub.23 is the distance between the second and third lens units; and (iv) BFL is the back focal length of the combination of the first, second, and third lens units for an object located at infinity along the long conjugate side of the projection lens.

Abstract: Titanium-containing zeolites containing the MEL crystal structure are prepared using an organic templating agent comprising 3,5-dimethylpiperidinium compounds. The zeolites can be made in the pure phase form, and are useful as catalysts for the oxidation of hydrocarbons.

Abstract: A paperboard container for the containment and dispensing of small objects such as candies, including a back wall, a front wall, a pair of opposed side walls, a bottom wall and a top wall defining an inner chamber. In one preferred embodiment, the inner chamber is divided into three cells by a baffle. The front wall includes at least three openings, one each of the openings positioned to cooperate with one of each of the inner cells. A dial wheel is rotatably positioned between the inner cells and the front wall. The dial wheel includes a plurality of openings which are positioned in the dial wheel so that the dial wheel can be rotated to allow dispensing from any one of the cells or any combination of the cells, through aligned openings in the dial wheel and front wall. The dial wheel can be rotated to close the container.

Abstract: A display device is disclosed for displaying a character having a font of the "7-segment" type. The display includes segment drivers for activating/deactivating one or various icons from a set of icons formed each by one or various electrically connected segments. The set of icons includes six icons chosen so that all the characters of the 7-segment font, including numerals zero to nine, are restorable by selective activation/deactivation of the icons.

Abstract: A clog resistant pump for washwater employs two water flow circuits. The first powered by a conventional motor-driven pump uses filtered washwater and drives a jet-pump discharging unfiltered washwater from the washing machine. The intake or discharged water from the jet-pump is used to operate a self-cleaning filter providing water for the first circuit of the motor-driven pump. The position of the filter in the stream of wastewater and adjustment of the filter apertures in size and area reduce clogging yet allow sufficiently filtered water to permit a conventional high efficiency motor-driven pump to be used in the first stage.

Abstract: The invention relates to an integrated circuit, containing an A/D converter and a test circuit, the latter in a test mode enabling explicit testing of analog and digital control signals of the circuit by supplying these control signals to circuit sections of the A/D converter and thus generating digital data signals at the output of the A/D converter. Analog signals, like bias signals and reference signals, can be selected and supplied to the input facility of the converter. Subsequently, a digital representation of the selected signal is obtained at the output facility of the converter. Digital signals, like clock signals, can be selected and supplied directly to the output facility. The output facility is operated by a clock signal and constructs a clocked version of the selected digital signal, which is subsequently available at the output. Thus, selected signals, either digital or analog, are available at the output of the converter and can be compared to specified data.

Abstract: Anodising treatments are used to form insulating films (12) in the manufacture of a flat-panel display or other large-area thin-film electronic device. A first film (1,101) of anodisable material (e.g Al) is anodised through a part of its thickness to form an anodic second film (2). A mask pattern (4), e.g of photoresist, is provided at least on the second film (2) to define an area (5) where the second film (2) is etched away through at least a part of its thickness and where a further anodising step is carried out to form an anodic third film (3) contiguous with a remaining part of the anodic second film (2). The manufacture is simplified by using reverse-anodising in an electrolyte solution (20) to carry out the etching of the second film (2).

Abstract: To be able to transmit television pictures in a digital form through a medium having a limited bandwidth, the pictures are subjected to picture transform and to variable-length coding. The picture to be transmitted is converted in this manner into a bit stream comprising code words of variable length. This bit stream is converted into a channel bit stream which is less sensitive to transmission errors. To this end the most significant code words (representing the average luminance and the coarse picture details) of sub-pictures of 8*8 pixels are accommodated at fixed bit positions of the channel bit stream. These code words can be retrieved by simple count-down of the bit positions. The other code words are distributed over the other bit positions. The decoder is relatively simple because the length of each block comprising significant code words is also transmitted. This length is preferably adapted to the extent of picture detail in the sub-picture.

Abstract: A method is described for short-time Fourier-converting a speech signal and for resynthesizing an output speech signal from the modulus of its short-time Fourier transform and from an initial phase. In particular, after the Fourier converting the signal is subjected to a phase-specifying operation. Subsequently speech duration is affected by systematically maintaining, periodically repeating or periodically suppressing result intervals of the successive Fourier converting and phase affecting. Finally, a resynthesizing operation is executed. Speech pitch can likewise be affected through systematically excising or inserting signal intervals. Finally, the two strategies can be combined, so that ultimately, pitch and duration can be affected independently from each other.

Abstract: By treating the silicon-oxide insulating layer of a semiconductor device with an aqueous metal-salt solution of a metal of an ion radius of less than 0.110 nm, for example, Sc, La or Zr, before a platinum electrode layer is provided on the insulating layer, the platinum layer shows excellent adhesive properties.

Abstract: A description is given of an electro-optical switching device (1) comprising a transparent substrate (3), a switching layer (5) of yttrium hydride as a first electrode, a palladium layer (7), an electrolyte layer of, e.g. Ta.sub.2 O.sub.5 (9), a layer of WO.sub.3 hydride as the second electrode (11), and a transparent ITO-layer (13). Under the influence of a potential difference or direct current between the electrodes (5) and (11), the yttrium hydride is electrochemically converted from a low-hydrogen-content state to a high-hydrogen-content state, or vice versa. The conversion between both compositions is reversible, and is accompanied by a change in optical transmission. Apart from Y, other trivalent metals may be used, such as Gd and La.

Abstract: A deflection circuit generates a deflection current (If) through a deflection coil (Lf). The deflection circuit includes a series resistor (Rs) arranged in series with the deflection coil (Lf) to supply a feedback voltage (Vf;Vr), and a drive circuit (1,5) which has an output coupled to the series arrangement of the deflection coil (Lf) and the series resistor (Rs). The drive circuit (1,5) has an input coupled to the series resistor (Rs) to receive a feedback voltage (Vs). The drive circuit (1,5) further is coupled to a conversion resistor (Rc) for receiving an input waveform (Vi). The drive circuit (1,5) is arranged in a feedback loop to obtain a deflection current (If) with a shape resembling the input waveform (Vi). The deflection circuit further includes a damping impedance (Rd) arranged in parallel with the deflection coil (Lf), and a current generating circuit (3) for generating a correction current (Ic) within the flyback period (Tf).

Abstract: A method of manufacturing a semiconductor device with a bipolar transistor (1) and a MOS transistor (2) formed in a silicon body (3) which for this purpose is provided with a field insulation region (4) by which semiconductor regions (6, 7) adjoining a surface (5) of said body are mutually insulated. A first region (6) is destined for the bipolar transistor and a second region (7) for the MOS transistor. The second region is provided with a gate dielectric (10). Then an electrode layer of non-crystalline silicon (11) is provided on the surface, which electrode layer is provided with a doping and in which electrode layer subsequently an emitter electrode (12) is formed on the first region and a gate electrode (13) on the second region.

Abstract: A projection lens for use with LCD or DMD panels is provided. The lens has three lens units, the first unit having a negative power and at least one plastic lens element having two aspheric surfaces, a second lens unit having a negative power or a weak positive power and at least one color correcting doublet, and a third lens unit having a positive power and an aspheric surface either on a glass element or on a weak plastic element. The projection lens has a back focal length to focal length ratio of at least 3.0, the ratio being achieved by arranging the first, second, and third lens units so that:D.sub.12 /f.sub.0 >1.0,D.sub.23 /f.sub.0 >0.7,and1.5<(D.sub.12 +D.sub.23 +BFL)/BFL<4.0where: f.sub.0 is the effective focal length of the combination of the first, second, and third lens units; BFL is the back focal length of the combination of the first, second, and third lens units; D.sub.12 is the distance between the first and second lens units; and D.sub.

Abstract: A belt feeder for the rapid and successive in-line transportation of small electronic components. The belt feeder has an inclined dispensing portion with at least one dispensing lane, a conveyor portion having an intermittently moving conveyor belt and at least one conveyor guide lane superposed above the conveyor belt, and a receiving nose structure having at least one nest structure mounted thereon at the end of the conveyor belt and forming a nest. The inclined track is positioned adjacent and above the conveyor track to allow the components enough space to be successively dispensed to the conveyor belt from the dispensing lane and into the conveyor guide lane where the component is intermittently carried forward by the conveyor belt until it comes to rest within its nest.