Abstract: A PALC panel is operated by increasing the voltage between the channel electrodes to a firing voltage to create a plasma in the channel, reducing the voltage between the channel electrodes to a sustaining voltage to sustain the plasma for an interval during which a selected drive voltage is applied to the data drive electrode to establish an electric field in the layer of electro-optic material, and reducing the voltage between the channel electrodes to a bias voltage, which is insufficient to sustain the plasma but provides an electric field having a component parallel to the cover sheet in the layer of electro-optic material.

Abstract: A system and method of displaying an image on a liquid crystal display equipped with a crystal panel which comprise a plurality of gate lines, a plurality of data lines, and pixel cells disposed in the shape of a matrix corresponding to the intersections of the gate lines and the data lines, the method comprising the steps of: (a) selecting the gate line for the display of an image on the liquid crystal panel in a first term during a frame period for displaying one image and moreover supplying an image signal to display the image to the data line; and (b) selecting the gate line again in a second term during the same frame period as that of the first term, the first term and the second term being in the same frame period, and supplying a non-image signal having a predetermined potential and different from the image signal to the data line during the second term, whereby supply of the non-image signal is for displaying a blanking image.

Abstract: In a data transfer circuit, a hold signal generating circuit generates and outputs a hold signal Hold when transmission data is equal to transmission data one cycle before, and sets a 3-state output buffer for transmission data to high-impedance state, while, in a data reception circuit, when the hold signal Hold is valid, a data reception circuit outputs the reception data held, thereby power consumption in a data bus which is terminated with a terminal resistor is reduced.

Abstract: A touch position sensing system including a transducer configured to transmit and modulate by pseudo random coding acoustic waves and to decode reflected waves generated by the acoustic waves by autocorrelating the pseudo random coding; a substrate configured to propagate the acoustic waves, including a touch surface having a first axis along a side of the perimeter of the substrate and a second axis which is perpendicular to the first axis and located along a second side of the perimeter; and, a first reflective array configured to reflect the acoustic waves transmitted by the transducer such that reflected waves are generated traveling parallel to the second axis, having a length substantially as long as the side of the perimeter corresponding to the first axis including partially reflective grating along the length and disposed lengthwise along the first axis of said substrate.

Abstract: A plurality N of capacitance sensing cells are arranged in a row/column array top to cooperate with a fingertip and produce an output signal that controls the movement of a cursor/pointer across a display screen. The output of each individual sensing cell is connected to the corresponding individual node of a resistor array that has N nodes arranged in a similar row/column array. A centroid output of the resistor nodes in row configuration provides an output signal for control of cursor movement in a row direction. A centroid output of the resistor nodes in column configuration provides an output signal for control of cursor movement in an orthogonal column direction. A mass signal output of the row/column resistor mode array provides a switch on/off signal.

Abstract: A projection display apparatus comprises a display device forming an image for projection to illuminate a display screen. A current source generates a current. A current sink is adjacent to the display screen and is coupled to the current source for receiving the current. A detector is coupled to the current source and the current sink for receiving the current and detecting a presence of the received current. Wherein a first condition, absent illumination by the projected image on the current sink, the current from the source divides and is coupled to the detector in accordance with a first ratio, the detector assuming a first state indicative of the absence of illumination, and in a second condition in accordance with an intensity of illumination by the projected image on the current sink, the current from the current source is received by the current sink in accordance with a second ratio and the detector, absent the received current, assumes a second state indicative of illumination on the current sink.

Abstract: A system and method implement a virtual reality (VR) keyboard. The VR keyboard system and method receive a VR glove position, generate a corresponding key code from the VR glove position using a predetermined mapping, and send the key code to an application program as a key input corresponding to a keyboard and/or keypad entrap of data and/or a command. The system and method also generate a display representing the key input based in on the VR glove position. The display of the key input may include, but is to limited to, a displayed depressed key in a VR headset of a VR representation of a VR keyboard indicating the key input. The system and method implementing a virtual reality keyboard addresses and solves numerous difficulties of physical and/or hardware-based input devices and provides many diverse advantages in use and applications.

Abstract: A bidirectional multispeed indexing control system for a display unit which has an increment input and a decrement input so as to be controllable to sequentially index through an ordered list of discrete elements. The control system has a two-button user interface. The user presses one button to increment once, and holds that button to continuously index at a slow fixed speed. To increase the indexing speed, the user presses the second button while continuing to hold the first button. Indexing speed will continue to increase until either a maximum speed is reached or the user releases the second button, at which point the indexing speed decreases from the value reached while holding the second button. To stop indexing, both buttons are released. To increment in the opposite direction (i.e., decrement), the order in which the buttons are pressed is reversed.

Abstract: An antenna for wireless communication into a touchpad module. A touchpad module, which can be inserted into an aperture in a laptop computer, includes a touch sensor for detecting touch in a touch sensor circuit for processing signals from the touch sensor. The antenna is connected to a port (input or output) on the touchpad module. The touchpad provides an open aperture for the antenna to communicate with the outside world, without being blocked by the shielding used in a laptop computer.

Abstract: This invention provides a display apparatus having high accuracy to control automatically power consumed for display operation suitable for emission-type display apparatus like a plasma display apparatus, electroluminescence display apparatus and a light emission diode display apparatus.

Abstract: A display device, in accordance with the present invention includes a transparent substrate and an array of pixels formed on the substrate, each pixel comprises a transparent electrode and a deformable member electrically actuated between a first state and a second state, wherein in the first state a liquid including a dye is disposed in a gap between the transparent electrode and the deformable member and wherein in the second state the deformable member reduces the gap between the transparent electrode and the deformable member such that the liquid is substantially removed between the deformable layer and the transparent electrode in the area of contact.

Abstract: A converter for connection between an electrographic sensor and an electrographic controller, and comprising: (a) a first set of contacts for connection to the sensor; (b) a second set of contacts for connection to the controller; and (c) an emulator for emulating at the second set of contacts: (i) a four-wire sensor when the first set of contacts is connected to a five-wire sensor and a second set of contacts is connected to a four-wire controller; and/or (ii) a five-wire sensor when the first set of contacts is connected to a four-wire sensor and a second set of contacts is connected to a five-wire controller.

Abstract: A typical mouse presents great inconvenience to those who have very large hands, very small hands or those who have finger deformity. When the hands are very large, user fingers need to bend over in order to reach the button; when the hands are very small, user fingers need to stretch out in order to reach the button. None of which presents a comfortable position for these users. Furthermore, if there is any finger deformity involved, then there would be even greater difficulty in activating the mouse button for purposes such as data selection and command execution. The present invention provides an improved computer mouse that has a mouse housing having a base member and a top member. The base member is configured primarily to make moving contact with the surface of a computer pad or a table. The top member is an integrated piece having no separate mechanical button disposed thereon.

Abstract: A coordinate-detecting device of a voltage-detecting type, the device including: a coordinate input pad having an upper sheet and a lower sheet opposing each other at a predetermined gap, the sheets being in electrical contact when there is a touch on the coordinate input pad; a voltage-detecting part for alternately detecting voltage values representing an X-coordinate and a Y-coordinate of a contact point; and a control part for generating a coordinate data from the voltage values detected at the voltage-detecting part. The upper sheet and the lower sheet oppose each other at the predetermined gap by a repulsive force between magnetic poles with the same polarity.

Abstract: A drive circuit for driving a display device includes a voltage level shift circuit which receives a control signal and a data signal and which shifts a voltage level of the control signal and the data signal to output a voltage level shifted control signal and a voltage level shifted data signal. The drive circuit also includes an output circuit which receives the voltage level shifted data signal and which outputs an output data signal corresponding to the voltage level shifted data signal in response to the voltage level shifted control signal.

Abstract: A push button of a keyboard includes a cap movably supported on a base plate by two link members which are pivotally attached to each other and pivotally attached to both the cap and the base plate. A rubber cone is arranged between the cap and the base plate whereby when the cap is depressed, the rubber cone is deformed to trigger a switching circuit for generating a signal associated with the depression of the push button. Pairs of projections are formed on the cap defining a gap between each pair for rotatably accommodating upper pivot pins of the link members. Each projection forms an inclined face opposing each other for guiding and facilitating insertion of the upper pivot pins therein. Tabs are stamped on the base plate and define spaces for rotatably accommodating lower pivot pins of the link members. The tabs form inclined edges for guiding and facilitating insertion of the lower pivot pins into the spaces thereof.

Abstract: A coordinate input apparatus for correcting the shift in an input coordinate system between different coordinate input apparatuses relative to an opening of each apparatus. A data processing block captures information from a coordinate detector PD to determine whether a tapping operation has been performed and determine whether the finger is being slid on a sensor board. A data analyzing block compares inputted absolute coordinates (X, y) with minimum coordinate values (Xmin, Ymin) and maximum coordinate values (Xmax, Ymax) indicative of a preset effective pointing area on the sensor board. A control block controls the data analyzing block to transfer replaced minimum coordinate values (Xmin, Ymin), maximum coordinate values (Xmax, Ymax) and the values of absolute coordinates (X, Y) to a data correcting block. Based on these minimum coordinate values (Xmin, Ymin) and maximum coordinate values (Xmax, Ymax), the data correcting block transforms the absolute coordinates (X, Y) into display coordinates.

Abstract: The present invention discloses a mouse scroll input apparatus for controlling scrolling motions in a computer window, including a signal input device for generating an input signal in response to an operation of a mouse user, wherein a scrolling speed of the window is determined by a level of the input signal. According to the present invention, convenient operation can be achieved at low cost.

Abstract: A device receives differential data of delayed previous image data and present image data from a data transmitting section and supplies a signal corresponding to the present image data reconstructed on the basis of the differential data to a display panel section having a plurality of pixels arranged in a matrix. This device includes a holding circuit for holding image data reconstructed on the basis of the differential data received from the data transmitting section to delay the image data by a predetermined period, and an addition circuit for reconstructing the present image data by adding the previous image data delayed by the holding circuit to the differential data received from the data transmitting section.

Abstract: A gamma correction circuit includes a node level setting unit set predetermined level values of video signals from outside, in a case where encoded M-bit (where M is an arbitrary integer) video signals being represented by using predetermined number of sections and the level values of the video signals corresponding to 2n+1 number of nodes (where n is an arbitrary integer) associated with the sections on which the node are specified, and a gamma correction unit for executing gamma correction for the M-bit video signal in accordance with the level values of the nodes set in the node level setting unit, thereby the gamma correction circuit executes gamma correction on various types of display devices.