摘要:
A voltage source (RAW B+), a transformer (T1) and a switching controller (U1) are coupled for switched mode generation of a regulated output supply voltage. A switching circuit (R5, R6, R7, Q3, Q4, Z3, U3) responsive to an on/off signal (+23 v-RUN) turns the power supply on and off by establishing a conductive condition in a conductive path. A fault detector (42) establishes a non conductive condition in a part of the conduction path responsive to an overload condition. A delay circuit (40) establishes a conductive condition in an auxiliary conduction path for a period of time after the power supply is turned on. The auxiliary conduction path becomes non-conductive when the fault detector establishes a conductive condition in the part of the conduction path. The part of the conduction path remains conductive absent an overload condition. A latch arrangement including the delay circuit maintains the non-conductive condition in the auxiliary conduction path until the power supply is turned off.
摘要:
The invention relates to a method and a device for automatically performing a crossover between two songs (1,2) which are played back consecutively. As soon as a determined end part (6, 3) of the first song is detected (7, 8), this end part is played back simultaneously (9) with a begin part (4) of the second song (2). After playback of the end part, the playback continues (10) for the second song only. During simultaneous playback a fade out and/or a fade in may be performed for the end part and/or the begin part respectively.
摘要:
VCR (1) connectable to a television receiver (2) and a decoder of scrambled signal (16) in which means are foreseen so that in a first stand-by mode of the VCR (1) called ECO1 mode, if no scrambled signal is received by the television receiver (2) only the video signal is routed to the decoder (16) through the VCR (1), and if a scrambled signal is received then also the audio signal is routed through the VCR (1). Due to the savings in power by switching off the audio signal, ECO1 mode consumption is about 3W.
摘要:
A cathode ray tube may utilize a focus mask color-selection structure. The focus mask structure is susceptible to localized, transient short circuit events, or breakdown events. These events may be caused by conductive particulates that become free within the cathode ray tube and provide a short circuit between first and second layers of the focus mask. The breakdown events are undesirable because they may result in cross-strand currents causing mask strand magnetization that can interfere with a video image on the screen of the cathode ray tube. A rapid degaussing operation is initiated during the next subsequent vertical blanking period following detection of the breakdown event.
摘要:
The invention relates to a tracking device in which a position of a coil driven actuator (5, 55) is determined using a sensor coil (11). A reference signal 12 having a determined voltage and frequency is fed to a driven coil (55). A position of the coil driven actuator is proportional to a distance between the driving coil and the sensor coil. The sensor coil produces an alternating voltage induced by an alternating magnetic field emitted by the driving coil. The alternating voltage is used to determine the position of the actuator.
摘要:
In accordance with the present invention, a method of electrophotographically manufacturing a luminescent screen assembly on an interior surface of a faceplate panel (12) of a color CRT (10) comprises the steps of coating the interior surface of the panel with a volatilizable, organic conductive material to form an organic conductive (OC) layer (32), and overcoating the OC layer with a volatilizable, photoconductive material to form an organic photoconductive (OPC) layer (34). Then, a substantially uniform voltage is established on the OPC layer, and selected areas of the OPC layer are exposed to visible light to affect the voltage thereon, without affecting the voltage on the unexposed area of the OPC layer. Next, triboelectrically charged, light-absorbing screen structure material is deposited onto the unexposed area of the OPC layer to form a substantially continuous matrix (23) of light-absorbing material having open areas therein. The present method is an improvement over prior methods in that the present method includes the additional steps of forming a planarizing layer (35, 135) on the OPC layer; overcoating the planarizing layer with a second coating of the volatilizable, organic conductive material to form a second OC layer (132), and then overcoating the second OC layer with a second coating of the volatilizable, organic photoconductive material to form a second OPC layer (134). The phosphor materials are deposited onto a suitable charged and exposed second OPC layer so that the phosphors completely overlie the openings in the matrix and overlap at least a portion of the matrix adjacent to the openings.
摘要:
A cache enabling architecture in which a storage reading and/or writing device (2), a caching processor (5) and a mass writing and reading device (3) are each connected to a data bus (1). The storage reading and/or writing device exchanges information directly with the caching processor over the data bus. The caching uses the mass writing and reading device as cache memory.
摘要:
The invention relates to a method for personalizing a recordable data storage medium (1). At least one property of a non-recorded data area is modified in the same way as if data were recorded thereby creating determined patterns (7) on or in the data storage medium. The property to modify may be an optical property rendering the determined patterns visible to human eyes. The invention further relates to a data storage medium comprising the mentioned determined patterns and to a device for transfering determined patterns on or in a data storage medium.
摘要:
The invention relates to a method and a device for obtaining an adaptive selection of sets of data stored in a mass memory (30). The method and the device use administrative information stored in an administration memory (31) and related to the data sets, and allow to obtain a classified list of data sets. The adaptive selection may reflect habits of access to the sets of data by a user (35) as well as momentary preferences of this user. The data sets may for example be songs recorded on a magnetic tape (29).