摘要:
A method of making a multitrack head consisting in making a first network of grooves in a block of ferrite, filling the grooves with glass, planing down the surface, making a second network of grooves in a second block of ferrite, bonding these two blocks, trueing the base of the first block, depositing poles and making the winding wires go through.
摘要:
A process of manufacturing an apparatus incorporating a layered thin film structure, wherein said process more particularly obviates the need to repeat on a first part of the apparatus the effects of certain operations required to produce the second part formed by the layered thin film structure. For this purpose, the process consists of utilizing a substrate to produce an intermediate assembly (12) comprising the thin film structure (11), then attaching the intermediate assembly (12) to the first part (10), then at least partially eliminating the intermediate substrate (13).
摘要:
Active matrix display screen with row and column redundancy. The display screen comprises a first and second transparent plate (10, 24) between which is inserted a liquid crystal. On a first plate (10) are deposited a matrix of elements (32) each comprising a transistor (20) and a conductive block (22), lines of addressing electrodes organized in rows (14) and in columns (12). The lines of electrodes are connected together at their ends by resistances which make it possible to avoid the effects of row or column breaks.
摘要:
The method of synchronisation of a reference frequency of a basestation transceiver (BTS), to the reference frequency of a basestation controller (BSC) comprises a sequence of steps, wherein synchronisation packets are transmitted and provided with a timestamp of transmission and a timestamp of reception. An evaluation network delivery is evaluated upon finalization of a period of observation. If high enough, a confidence level is established of the received synchronisation packets. Only if the confidence level is above a threshold, a correction to the reference frequency of the oscillator in the basestation transceiver is applied.
摘要:
The present invention relates to a method for addressing a flat screen composed of lines and columns, with pixels located at their intersections, characterized in that, at the start of each sampling of the video signal to be displayed on the screen, a voltage (Vr) higher than the working voltage range (V) is applied to the selected pixel for a time tr, then the working voltage is sampled for a time ts.
摘要:
Active matrix display screen and processes for making it. The sources of transistors Tij controlling the display points belonging to a line Li are connected to the following line Li+1 by a resistive strip Bij and a conductive bridge Kij. If a transistor is defective and short-circuited, this defect does not affect the adjacent transistors.
摘要:
Active matrix display screen and processes for producing it. Each block (51) is associated with a conductive strip (55) connecting the drain of the control transistor (61) to the addressing column. The addressing line is narrower at the intersection of a column than in the zone of the transistor and the isolation of the intersection can be different from the isolation of the gate.
摘要:
A display screen allowing for the visual display of the contour of an image and a method for controlling such a screen. According to the present invention, the counterelectrode is etched on elementary motifs electrically insulated from each other. Each motif covers part of the addressed electrodes. The display of the image is effected normally, but with the possibility of having its contour appear without using additional means. Such a device finds particular application for display screens.
摘要:
An active matrix display screen which does not include a spurious transistor. The screen includes a matrix of pixels with addressing columns and rows. The addressing rows consist of a stack of semiconductive material, insulating material and conductive material. Where the addressing rows cover conductive segments, a matrix of transistors is formed.
摘要:
Process for producing an active matrix display screen with gate resistance.A resistive layer, for example of aSi:n.sup.+ is inserted under the gate of the transistors. A short circuit in the insulating layer no longer risks short-circuiting a line and a column.Application to display.