Abstract:
The display screen (3) of a cathode ray tube (1) is provided with an antistatic coating (8) which comprises conductive, for example ATO (Sb:SnO.sub.2) particles. The coating comprises at least one additional layer (10) of silicon dioxide to obtain an antireflective effect.
Abstract:
An accumulator device for an apparatus intermittently operating between a back-up rest state and an active state includes at least first and second accumulator assemblies. A connection circuit is provided for connecting the assemblies to the apparatus and includes at least one switch element, and a control circuit of the switch element connects the second accumulator assembly to the apparatus during the active state.
Abstract:
A message transmission system, such as a paging system, provides message compression through the use of corresponding memories or memory areas in a primary station and a secondary station storing identically the most frequently used n items of numeric only or alpha-numeric data. The contents of the memories are updated dynamically to reflect changes in the most frequently used items by the primary station examining messages to be sent to a particular secondary station to see if an item is being used more frequently than one of those stored, in which case the primary station initiates a reprogramming message which is sent to the secondary station. In response to receipt of the reprogramming message, the particular secondary station updates its memory and acknowledges to the primary station that it has done so, and upon receipt of the acknowledgement, the primary station correspondingly updates its memory. The message compression technique may also be applied to frequently used phrases and also to complex graphical data which it is more efficient to store in the primary and secondary stations and to transmit a memory location indicator.
Abstract:
The present invention relates to a power supply circuit SC receiving a power supply current IS at an input voltage VLN and intended to supply a voltage VDD, comprisinga capacitance CS,a first transistor T1 enabling the capacitance CS to be charged by means of the power supply current IS,a second transistor T2 enabling said charge to be interrupted by diverting the power supply current IS to the reference terminal VSS, anda control module T3, T4 controlling the conductance of the first and second transistors T1 and T2 as a function of the values of the input and output voltages VLN and VDD.According to the invention, the power supply circuit SC also comprises a measuring module with which the value of the power supply current IS can be controlled.
Abstract:
A temperature sensing circuit suitable for integration with a power semiconductor device (MOSFET/IGBT) includes temperature-sensing p-n diode means (D1, D2, etc . . . ) integrated together with first and second IGFETs (M1 and M2). A current path through the temperature-sensing p-n diode means (D1, D2, etc . . . ) provides a voltage drop (Vf) having a negative temperature coefficient. The IGFETs (M1 and M2) are coupled in separate current paths from each other so as to have separate gate-to-source voltage signals (Vgs1 and Vgs2) between their source and gate electrodes (s and g). The gate-to-source voltage (Vgs1) of the first IGFET (M1) has a negative temperature coefficient of greater magnitude than the temperature coefficient (if any) of the gate-to-source voltage (Vgs2) of the second IGFET (M2). One of the source and gate electrodes (s or g) of the first IGFET (M1) is coupled to the p-n diode means (D1, D2, etc . . . ), and the first and second IGFETs (M1 and M2) are coupled together as or with a comparator (COMP) to compare the voltage drop (Vf) from the p-n diode means (D1, D2, etc . . . ) with any difference between the gate-to-source voltages (Vgs1 and Vgs2) of the IGFETs (M1 and M2) and so provide a logic output signal (Tabs) indicative of a sensed temperature in relation to a temperature threshold. The IGFETs (M1 and M2) are of the same insulated gate field effect type as each other, typically an N-channel enhancement type, so that the second IGFET (M2) has a gate threshold value (V.sub.T) which balances that of the first IGFET (M1) and provides the comparator (COMP) with a precision reference level corresponding to the temperature threshold and less susceptible to variation in process parameters associated with the IGFET threshold voltages.
Abstract:
A projection system is described for projecting a mask pattern on a substrate by means of EUV radiation, which projection system consecutively comprises a first concave mirror (1), a convex mirror (2) and a second concave mirror (3). Since the system has a focal length f which is at least equal to +1/2 L, in which L is the length of the system, and the chief ray of the object beam (b.sub.2) leaving the object plane (V) is inclined towards the optical axis (OO'), a compact system is obtained whose first concave mirror (1) has relatively moderate dimensions and in which the axial positions of the concave mirrors (1, 3) are approximately equal, so that these mirrors can be arranged on a common support.
Abstract translation:描述了用于通过EUV辐射将掩模图案投射在基板上的投影系统,该投影系统连续地包括第一凹面镜(1),凸面镜(2)和第二凹面镜(3)。 由于系统具有至少等于++ E的焦距f,其中L是系统的长度,并且离开物体的物体光束(b2)的主光线的长度为1/2 + EE L 平面(V)朝向光轴(OO')倾斜,获得了紧凑的系统,其第一凹面镜(1)具有相对适度的尺寸,并且凹面镜(1,3)的轴向位置近似相等, 使得这些反射镜可以布置在共同的支撑上。
Abstract:
The invention provides a method of manufacturing a large-area electronic device, for example a flat panel display, comprising thin-film circuit elements, and also laser apparatus for crystallizing a portion of a semiconductor thin-film (1) with a beam (11) of set energy. The energy of the beam (11) is set in accordance with the output from a light detector (22) to regulate the crystallization of a device portion (3,4 and/or 5) of a semiconductor thin film (1) at which the beam (11) is subsequently directed with its set energy. The light detector (22) monitors the surface quality of a previously crystallized portion (2). In accordance with the present invention, the light detector (22) is located at a position outside the specular reflection path (25) of the light returned by the surface area of the crystallized portion (2) and detects a threshold increase (D) in intensity (I.sub.s) of the light (26) being scattered by the surface area of the crystallized portion. This threshold increase (D) occurs when the energy (E.sub.p) of the beam (11) is increased sufficiently to cause the onset of surface roughening.
Abstract:
A printhead which comprises a body with pressure chambers (13) and nozzles (14), a membrane (17) connected to the body so as to form one wall of the pressure chambers, and an actuator plate (25) comprising an actuator element (31) for each pressure chamber. A support plate (19) between the actuator plate and the membrane includes first portions (21) and second portions (23) with the first portions being movable relative to the second portions in the direction of the thickness of the support plate, a first portion being situated between each actuator element and the corresponding pressure chamber. The actuator plate has active regions (31) and inactive regions (33), the actuator elements being formed by active regions of the actuator plate. Adjacent actuator elements are separated from each other over substantially their whole length by slits (35) in the actuator plate. The actuator plate can be a ceramic multilayer actuator (CMA).
Abstract:
A steam iron comprises control device(s) for adjusting temperature and steam generation. The soleplate is heated with a heating element controlled by a control circuit which compares the desired temperature with the temperature of the soleplate measured with a temperature sensor. Steam is generated by transporting water from a water tank to a steam chamber which is thermally coupled to the soleplate. The control circuit adapts the power of the heating element upon activation of the steam generator in anticipation of the expected cooling down of the soleplate as a result of the transport of the water to be evaporated to the steam chamber.
Abstract:
The invention relates to a speech recognition system for numeric characters, comprising a control device (33) for recognizing at least one numeric character sequence and for producing the recognized numeric characters of at least one numeric character sequence. For correcting erroneously recognized numeric characters there is proposed that the control device (33) is used for comparing a spoken second numeric character sequence with the first numeric character sequence in the case of at least one erroneously recognized numeric character of a first numeric character sequence. The control device (33) is then used for determining correlating numeric characters of a part of the first numeric character sequence, which sequence has the most matches with the numeric characters of the second numeric character sequence when the number of numeric characters of the second numeric character sequence is smaller than the number of numeric characters of the first numeric character sequence. The control device (33) then substitutes the non-matching numeric characters of the second numeric character sequence for the numeric characters of the determined part of the first numeric character sequence. If, however, the second spoken numeric character sequence is not shorter than the first, it is used to replace the entire first spoken numeric character sequence.