Abstract: The large circuit scale problem is avoided by applying a systematic algorithm for both enlargement and reduction. A resolution conversion unit for converting the resolution of an input video signal with a magnification of M/N is provided with a storage part for storing the arithmetic result, an arithmetic part having an adding part for adding a positive integer M to an output of the storage part and a subtracting part for subtracting a positive integer N from the output of the storage part, a memory part for temporarily storing a video signal, a memory control part for generating a reading and/or writing control signal based on an output supplied from the arithmetic part, and a pixel value arithmetic part for calculating an output pixel value corresponding to a pixel value included in an input video signal based on an output supplied from the arithmetic part.

Abstract: A cooling apparatus is constructed wherein, a fan box is provided with a plurality of suction openings and exhaust openings formed on a suction main surface and an exhaust main surface opposite to each other, a plurality of fan units each comprising a multi-blade fan and a suction duct disposed in different positions in a inserting direction are alternately arranged in an axial direction of the multi-blade fan so as to be able to insert and drawn out, and the fan unit is configured so that a suction duct thereof operates as a suction passage for the multi-blade fans of the next fan unit by communicating a fan suction opening with the suction opening through the suction duct and communicating a fan exhaust opening with the exhaust opening.

Abstract: The disk array controller includes a plurality of interfaces with respective processors for connecting with a host computer or disk devices, duplicated shared memories connected in a one to one ratio between each interface and respective access paths, a selector connected to the plurality of interfaces, and a cache memory connected to the selector. The number of access paths between the selector and the plurality of interfaces is greater than the number of access paths between the cache memory and the selector. Each processor performs dual writing in the duplicated shared memories.

Abstract: A video signal output device which outputs a video signal, including a basic signal group generating circuit for generating a sync signal and a video signal, the video signal indicating display values of pixels at display positions on a display device in intervals of the video signal, the display positions being determined in accordance with time differences between the intervals of the video signal and the sync signal; a signal generating circuit for generating a transmission signal relating to the video signal to be transmitted to the display device; a superposing circuit for superposing the transmission signal on the sync signal to generate a second sync signal; and an output circuit for outputting the second sync signal and the video signal.

Abstract: Premium point services offered by different retailers require each user to possess a plurality of cards for dealing with different applications. An electronic pocketbook system made of a display device and an IC card is provided to store diverse kinds of application information such as amount information and point information into a single IC card. Portions of the application information to be displayed are stored in a predetermined format into a predetermined area inside the IC card. This allows the same program of the display device to display various kinds of application information successively using a common program, and without having to an application specific program.

Abstract: A liquid crystal drive circuit, which makes it possible to display low resolution display data on a high resolution liquid crystal panel while expanding and/or centering the display data, is provided. A multiscan control signal is inputted to a latch address control circuit and a data control circuit to control latch signals and the display data so as to latch single pixel data into a plurality of latches at the same time. The display data are latched with the expanding and/or centering operation, and outputted in synchronization with a line clock after being converted to gray scale voltages. Accordingly, it is possible to realize the lateral expansion and/or the centering operation. Further, it is also possible to realize a longitudinal expansion by adding a latch circuit between a latch circuit and a liquid crystal applied voltage generation circuit, and by outputting the data in synchronization with an expanded line clock.

Abstract: A temperature compensating circuit includes a first circuit network 1 between an inverting input terminal of an operational amplifier 13 and an output terminal of the operational amplifier 13, and a second circuit network 2 between the inverting input terminal of the operational amplifier 13 and a reference potential. At least one of the first circuit network and the second circuit network is made of an arrangement containing a plurality of series-connected thermistor/resistor pairs in which the thermistors are connected parallel to the resistors, and the temperature compensating circuit compensates a temperature-dependent signal which is inputted into a positive phase input terminal of the operational amplifier 13, and outputs the temperature-compensated signal.

Abstract: A processing apparatus for processing information contained in an IC card. When an application is newly registered in the IC card, registration of a corresponding service application program in the processing apparatus is required. Further, when applications stored in the IC card differ from those stored in the processing apparatus, a method of displaying names of the applications in a uniformized manner is required. For coping with these cases, an IC card read/write unit of the processing apparatus is made use of for registering service application programs in a memory incorporated in the processing apparatus, while the application names are registered in a memory area of the IC card in a common character code for allowing the names of the applications registered in the IC card to be displayed whenever occasion requires.

Abstract: A magnetic recording/reproducing apparatus equipped with an image sensor, has a camera portion having an A/D converter for converting a signal from an image sensor into a digital signal and a first digital processor for receiving an output of the A/D converter and for digitally processing thereof. A VTR portion of a helical scan type mounts at least two or more of magnetic heads for recording/reproducing a FM modulated luminance signal and a low band converted chrominance signal. A second digital processor processes a video signal of the VTR. A switching circuit is provided in a preceding stage of the A/D converter. The image sensor signal, an external video signal and a reproduced signal from the magnetic heads are exchanged. The output of the A/D converter is inputed to the second digital processor, and a sampling clock of the A/D converter is exchanged to the most appropriate clock for the respective image sensor signal, the external video signal and the reproduced signal from the magnetic heads.

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 processor 29 automatically sets a direction of transferring electronic money information depending on the existence of IC cards 1a, 1b connected to IC card connecting portions 11a, 11b, and the existence of an external device connected to an external device connecting terminal 8, thus making instructing operations for transferring electronic money information easier.

Abstract: A liquid crystal display apparatus includes a liquid crystal display panel, a data processing circuit, a signal driver circuit, a scan driver circuit, and a power circuit. The liquid crystal display panel includes a plurality of pixels constituted by at least a plurality of pixel electrodes disposed in a matrix arrangement, a reference electrode opposing the pixel electrodes, and a liquid crystal disposed between the pixel electrodes and the reference electrode.

Abstract: A liquid crystal display includes a scanning voltage driver which applies selective scanning voltages to scanning electrodes of a liquid crystal display panel one group of M (an integer of 2 or greater) adjacent scanning electrodes at a time in accordance with M orthogonal function data. A data voltage driver applies to data electrodes of the liquid crystal display panel data voltages selected from M+1 data voltages in accordance with a coincidence number representing a number of coincidences between values of M display data corresponding to the M adjacent scanning electrodes in a current group of scanning electrodes and values of the M orthogonal function data corresponding to the M adjacent scanning electrodes in the current group.

Abstract: An IC card system includes an IC card, an IC card read/write unit for reading/writing the IC card, a communication unit intervening for connection to a communication line network, a controller for controlling the IC card read/write unit and communication unit, and a server system connected to the communication line network. The IC card is written with at least specified access destination information for accessing the server system, the controller automatically accesses the server system through the communication unit in accordance with the access destination information in the IC card, and the server system offers information to an information offering destination determined automatically by information to be offered which is processed by the server system, an information offering destination already written in the IC card inserted in the IC card read/write unit or an information offering destination designated by a user after the insertion of the IC card.

Abstract: A liquid crystal display control apparatus includes a display on/off data generation circuit for generating plural display on/off data per pixel corresponding to M (M>N, M and N being integers) frame periods of a video output signal in N frame periods of a video input signal on a unit pixel basis in response to gray-scale data of pixel units included in the video input signal, a write control circuit for writing display on/off data per pixel corresponding to M frames of the video output signal generated by the display on/off data generation circuit into a frame memory during N frame periods of the video input signal, and a read control circuit for sequentially reading out, from the frame memory, display on/off data corresponding to M frames of the video output signal written in the frame memory in synchronism with one display scan period of the video output signal, thereby the data written in the frame memory is not gray-scale data but display on/off data of one bit, therefore, a data bus width at a time o

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.

Abstract: An object of the present invention is to perform precise A-D conversion of analog video signal in a liquid crystal display monitor, without increasing a transmission line: to attain this object, a horizontal dividing signal synthesizing circuit of a graphics card superposes a horizontal dividing signal synchronized in phase with a clock for D-A conversion of the analog video signal on a horizontal sync signal, to obtain a second horizontal sync signal, to be outputted; a sync signal isolating circuit of the liquid crystal display monitor isolates the horizontal dividing signal and horizontal sync signal from the second horizontal sync signal; the PLL generates an A-D conversion clock synchronized with the horizontal dividing signal.

Abstract: A beam is irradiated to an information recording medium having land tracks and groove tracks alternately formed on a track formed in turn on an information recording surface thereof and pre-pits so pre-formatted as to deviate from the center of the track, a return beam of the irradiated beam is received by detectors split into two parts in a track direction to obtain a differential signal, the pre-pit is detected from this differential signal and control of recording and reproducing processings is executed by using the pre-pit detection signal so obtained as the reference.

Abstract: A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.

Abstract: A display device which displays an image on a cathode-ray tube screen based on video information decoded from a signal-compressed digital broadcast signal. The video information contains fields having a number of scanning lines which may change from field to field, potentially causing vertical jitter in the displayed image. A circuit prevents the vertical jitter by setting a same vertical scanning start position of an electron beam on the screen for all of the fields regardless of the number of scanning lines. The circuit may be a clamp circuit which clamps a vertical ramp waveform; or a control circuit which controls a direct current level of the vertical ramp waveform when the number of scanning lines in a current field is different from a reference number of scanning lines; or an amplitude control circuit which performs feedback control of an amplitude of the vertical ramp waveform.