Abstract:
In a toothbrush (1) comprising a grip member (2) and a brush member (36) connected to the grip member (2), which brush member has a longitudinal axis (39) and carries a bristle holder (40) which is mounted on the brush member (36) so as to be movable with respect to a holder axis (41) and which has a holder surface (69) which extends substantially transversely to the holder axis (41) and from which, in the area of the holder surface (69), bristles (70) project transversely to the holder surface (69) and together form a bristle field (71), the free ends of at least a part of the bristles (70) of the bristle field (71) arranged around the holder axis (41) are bounded by two non-stepped enveloping surfaces (72, 73) which are inclined continuously with respect to the bristle holder (40), which enveloping surfaces are arranged substantially in a V-shape relative to the holder surface (69) of the bristle holder (40) and intersect one another along a line of intersection (74) at the location of the holder axis (41), the line of intersection (74) of the two enveloping surfaces (72, 73) extending transversely to the longitudinal axis (39) of the brush member (36).
Abstract:
The invention relates to an integrated circuit, comprising a number of independent clock domains. Seam circuits are provided in the interface signals paths between the clock domains in order to be able to isolate clock domains from each other during testing. Each seam circuit comprises a feedback loop having a multiplexer and a flip-flop feeding a first input of the multiplexer, a second input of the multiplexer being connected to the seam input, an output of the feedback loop being connected to the output; so that a first state of the multiplexer allows loading of a data bit in the feedback loop via the seam input, and a second state of the multiplexer freezes the data bit in the feedback loop.
Abstract:
The electric lamp has an information-displaying external coating (3) which is provided on the lamp envelope. The coating (3) comprises a metal oxide as the pigment, which is dispersed in a polysiloxane matrix which may contain lithium. The coating (3) is obtained by using a marking ink, which may be applied by means of an ink jet printing process.
Abstract:
The invention relates to a metal halide lamp provided with a discharge vessel having a ceramic wall. The discharge vessel has two electrodes whose tips have an interspacing EA. The discharge vessel has an internal diameter Di over said distance EA. According to the invention, the discharge vessel has a filling which comprises NaJ and CeJ3 while at the same time the relation EA/Di > 5 is complied with.
Abstract:
Electron-optical, rotationally-symmetrical lenses inevitably exhibit spherical and chromatic aberrations which usually determine the limit of the resolution. Such lens aberrations cannot be eliminated by compensation by means of rotationally-symmetrical fields. In order to enhance the resolution nevertheless, it has already been proposed to reduce said lens aberrations by means of a Wien-type corrector. Such a configuration must satisfy very severe requirements as regards manufacturing precision, mechanical and electrical stability and alignment of the various elements relative to one another. Consequently, it is extremely difficult to perform readjustement of the electron-optical apparatus by means of such a corrector in the case of changing circumstances. According to the invention there is provided a combination of a correction unit and a doublet to be corrected. By constructing the objective to be corrected as a doublet (5) and by independently controlling the two lenses (6 and 8) of the doublet (5), the setting of the correction unit (28) can remain unchanged, it being possible to vary the free object distance and the electron voltage nevertheless during operation of the electron-optical apparatus.
Abstract:
A process and apparatus are described for custom magnetizing a magnetic ferrite ring on the outside of the neck of a color cathode ray tube (CRT), in order to provide correction of convergence, color purity and frame errors in the CRT. The two step process provides for a first coarse correction step and a second fine correction step, each step involving bringing the ring to an initial state of magnetic saturation, and then custom magnetizing the ring using a series of high power AC pulses and low power DC offsetting fields, via cylindrical coils positioned around the periphery and in close proximity to the ring.
Abstract:
A rigid ferrite-containing ring and plastic holder are described for mounting on the neck of a color cathode ray tube (CRT) which ring is to be custom magnetized in order to provide correction of static convergence, color purity and/or frame errors in the CRT. The holder is provided with depressible tabs which releasably secure the ring to the holder. The holder is mounted on the neck of the CRT in the vicinity of the main focusing gap of the electron gun of the CRT, using an adhesive.
Abstract:
The disclosed system comprises a disc-shaped record carrier (1) and a device for reading and/or writing information in a track (9), which information is represented by marks constituted by bit cells having a constant bit length B1. For indicating the track (9), the record carrier (1) may be provided with a servopattern (4) in which a winding number is coded per winding (3) of the track. In the system, the ratio between the track pitch and the bit length is determined in such a way that the increase of the length corresponds from winding to winding to an integral number of bits. This provides the possibility of computing the position of an information block somewhere in the track from the ratio and the winding number in a simple manner and with great accuracy, because no rounding errors are produced when a computation using integers is performed. The device is provided with clock means (30) for generating a bit clock synchronously with the bit cells during scanning of the track, which clock means are adapted to generate the bit clock in a predetermined relation with the track pitch Tp, such that m * B1 = n * pi * Tp, in which n and m are integers which are larger than or equal to 1.
Abstract translation:所公开的系统包括盘形记录载体(1)和用于在轨道(9)中读取和/或写入信息的装置,该信息由具有恒定位长度B1的位单元构成的标记表示。 为了指示轨道(9),记录载体(1)可以设置有伺服模式(4),其中每个磁道的绕组(3)对绕组数进行编码。 在该系统中,以使得长度的增加对应于从绕组到绕组到整数位数的方式来确定轨道间距和位长度之间的比率。 这提供了以简单的方式并且以很高的精度从比率和绕组数计算轨道中某处的信息块的位置的可能性,因为当执行使用整数的计算时不产生舍入误差。 该装置设置有时钟装置(30),用于在扫描轨道期间与位单元同步地产生位时钟,该时钟装置适于产生与磁道间距Tp预定关系的位时钟,使得m * B1 = n * pi * Tp,其中n和m是大于或等于1的整数。
Abstract:
A computer-implemented method of identifying suspect masses in digital radiologic images and a system for computer-aided diagnosis of such images in which the images are thresholded at a large number of threshold levels to discriminate spots and a two stage classifier is applied to the spots. The first classification stage applies multiples rules, predetermined from a training set of images, to a relatively computationally inexpensive set of initial features, namely area, compactness, eccentricity, contrast, and intensity variance for each spot. More computationally expensive features, namely edge orientation distribution and texture features, are computed only for spots that are accepted by the first classification stage to points for these spots in an expanded feature space. In the second classification stage, these points are classified as true positives or false positives in dependence on which means of a plurality of clusters of true positives and a plurality of clusters of false positives, predetermined from the training set, are nearest in Mahalanobis distance.
Abstract:
The invention relates to a method of imaging an interior of a turbid medium, for example a part of a breast of a human female. In the method a turbid medium is irradiated with light and measurement of the intensity of light propagated along a plurality of light paths through the turbid medium is measured. An image of the interior of the turbid medium is reconstructed from the intensities measured. Furthermore, the method according to the invention comprises the determination of possible strengths assignable to each pixel of the image from combinations of weighting functions and differences between expected photon fluences and measured photo fluences from the intensities measured. A distribution function is made up from the possible strength determined. In a last step the image is determined from the distribution function. Further steps can be carried out to correct objects of high strength in the image.