Abstract: Cathodoluminescent display apparatus employing an electron source including a plurality of diamond crystallites. Image display apparatus employing an array of picture elements, each picture element having associated therewith an electron source including electron emitting diamond crystallites, is realized as a preferred embodiment.

Abstract: The solid state memory device consists of a circuit board based system which is mounted in a 3480 type magnetic tape cartridge form factor housing to make this media physically compatible with the 3480 type magnetic tape cartridges. The interconnection of the solid state memory device with the read/write device is by an optical connections which transfer data between the solid state memory device and the associated read/write device. A plurality of batteries in the solid state memory device provide power for the memory retention capability required of the volatile solid state memory devices. The batteries are recharged by the use of a pair of power rails that are incorporated into the exterior housing of the 3480 form factor cartridge. Thus, the associated read/write device applies power to the solid state memory via these power rails when the 3480 form factor cartridge is placed in the associated read/write device.

Abstract: A package is provided for achieving higher packing density and higher circuit integration of memories, in particular, a structure is provided having a plurality of thin, surface mount packages which are stacked up. Each of the laminated packages includes a semiconductor pellet, leads fixed to the front surface of the pellet, a radiating plate fixed to the rear surface of the same, and a resin mold member. To achieve a stabilized laminated structure, the mold member is shaped into a convex form on the front side of the pellet and into a concave form on the rear side of the same, so that the concave portion of one package can engage with the convex portion of another package.

Abstract: A plurality of pieces of retrieval information constituted by a plurality of retrieval items are stored. These pieces of retrieval information are used to retrieve images set in correspondence with the retrieval items. A retrieval condition is set by combining a plurality of retrieval items of the stored retrieval items in order to retrieve a desired image corresponding to designated retrieval information of the stored retrieval information. Retrieval is performed in accordance with a retrieval condition input through an input means and the set retrieval condition.

Abstract: A light shutter device having a plurality of chips of PLZT as arranged in a row and a transparent substrate to which the chips attached. Between each chip and the transparent substrate, a pair of spacing regulating members are provided as spaced by a distance not smaller than a width of a light transmitting portion of the chip. The chip is bonded to the transparent substrate with an adhesive at portions outside the pair of spacing regulating members.

Abstract: A data reproducing apparatus includes a reproducing section for reproducing digital data and whose reproducing state is controlled by a signal transmitted in a wireless fashion to thereby output reproduced data as digital data, and a control section for transmitting a reproducing position information to the reproducing section in a wireless fashion and decoding the digital data from the reproducing section such that, when it is determined that the data is necessary data, the data is stored in the control section, wherein a track number information near the position in which the necessary data is recorded is transmitted from the control section to the reproducing section through a wireless signal to thereby reproduce the necessary data.

Abstract: A memory system is implemented by an array of large scale integrated dynamic random access memory elements. The memory elements are of a type that permit data way word storage on a page basis, each page being defined on a row boundary. Discovering that excess power consumption by the memory can result from successive memory operations made back-to-back to different page locations, the present invention provides counter means to count each immediately successive different page memory operations so that, when that count matches a maximum count, memory operations are stalled for a period of time.

Abstract: A seek control apparatus for an optical disc recording/reproducing system controls the seeking movement of a head device adapted for recording/reproducing information signals on or from an optical disc as far as a desired position on a recording surface of the optical disc. The apparatus includes a current position detection unit for detecting the current recording/reproducing track position of a head device on a recording surface of a disc-shaped recording medium, a target value outputting unit for outputting a value changed as a second power of the time as the movement target position data from the current track position as far as an object track position, and a comparator unit supplied with an output signal from the current position detection unit and an output signal from the target value outputting unit and adapted for comparing the two output signals to each other. Seek control of the head device is performed on the basis of an output signal from the comparator unit.

Abstract: A semiconductor device having a reliable contact is disclosed. The device includes a barrier film deposited on the bottom and side wall of a contact hole opened in a insulating film at a predetermined position; a first metal film filled in the contact hole; and a second metal film of low resistance for forming an interconnection which passes above the contact hole filled in with the first metal film. An oxide film is formed by oxidation on the barrier metal film. And a method of manufacturing the semiconductor device is disclosed.

Abstract: When recording n pieces of music on a magnetic record carrier (3), two groups of pieces of music are formed. A first group of g.sub.1 pieces of music is recorded on the A-side of the record carrier and a second group of g.sub.2 (=n-g.sub.1) pieces of music is recorded on the B-side. The groups are selected such that the total time duration of each of the two groups T.sub.tot (g.sub.1), T.sub.tot (g.sub.2) is nearest to half the total time duration of all the n pieces of music (T.sub.tot /2).

Abstract: A rechargeable electronic flasher powered by a solar panel and solar-rechargeable battery. The circuit has particular application as an auxiliary safety measure for use in roadway cats' eyes, or in memorial symbols for mounting on, or near, grave stones and the like so as to provide substantially perpetual illumination. Minimum charging time is necessary, while operation on battery power is extended to many days, rather than hours. The circuit can also be set to flash at a rate above the frequency the eye can distinguish, creating a substantially constant light.

Abstract: A TAB lead frame having concentric power/ground planes provides for even distribution of power and ground potentials about the periphery of an integrated circuit. An electrically conductive plane is divided into multiple concentric power/ground planes, each of which are electrically isolated from each other and from the leads of the TAB lead frame. A dielectric layer electrically isolates the concentric power/ground planes from the leads. Electrical connection between the power/ground planes and the leads is made as appropriate via holes through the dielectric layer. The concentric planes provide structural strength to the TAB lead frame, while the even power distribution provides consistent shielding for each lead of the lead frame, and provides flexibility as to the placement of connector pads on the integrated circuit.

Abstract: A magneto-optical disc according to the present invention has separate regions located between mutually adjacent recording tracks. In the separate regions, magneto-optical signals are impossible to record or smaller than the recording tracks. Therefore, it is possible to maintain a low erasing power that is constant even when conditions such as off-tracking, defocusing and changes of operating temperature occur. The present invention provides a magneto-optical disc, further, which in a light modulating system restricts the recording domain so as to improve the number of times the disc can be rewritten, providing a magneto-optical disk that is highly compatible with different drives. Further, the magneto-optical disk according to the present invention is provided such that a residual signal is not caused if recording power during overwriting is lower than the previous recording power in a magnetic modulating system, further improving compatibility.

Abstract: A plastic-molded type semiconductor device according to the present invention has two islands, on which semiconductor elements are mounted. An insulating circuit board is formed so as to extend over the two islands. On the insulating circuit board, wires are formed. Resin is molded so as to cover the two islands and insulating circuit board. The insulating circuit board overlaps the two islands only at its edges, so that there exists no island just below the insulating circuit board. This reduces the island area and makes it harder for resin cracks to occur, compared with a conventional equivalent.

Abstract: A flat display device includes no exposed part of an insulated substrate on the inner wall of electron pass holes for attaining a high intensity of a display screen, high operational stability of the display screen, and having a simple structure for manufacturing it easily. In a control electrode, resistive films are formed on the exposed part of an insulated body. When the electrons pass through electron pass holes, electron beams are controlled without charging the insulated substrate by the electrons.

Abstract: An output circuit for a data transfer device includes first and second control inputs, a data input and a data output. The first control input controls whether the data output is generated in accordance with an ordinary type or an open drain type circuit operation, while the second control input controls whether the data output generated in accordance with the ordinary type circuit operation is set to an active state or an inactive state.

Abstract: A semiconductor integrated circuit comprises a first MOS transistor, a capacitor element, a second MOS transistor, and a node. One current path of the first MOS transistor is connected to a first power source, and the gate and the other current path thereof are connected together. The capacitor element is connected between a second power source and the other current path of the first MOS transistor. The second MOS transistor is of the same conductivity type as the first MOS transistor. One current path of the second MOS transistor is connected to the first power source, and the gate thereof is connected to the gate of the first MOS transistor. The node is connected to the other current path of the second MOS transistor. The node is pre-charged at a predetermined potential level by a current flowing from the other current path of the second MOS transistor.

Abstract: A radiation hardened MOSFET is fabricated by forming a dielectric layer of boro-phosphosilicate glass (BPSG) over the field oxide layer of the MOSFET. The BPSG covers only a small part of the gate electrode of the MOSFET. The gate electrode of the MOSFET is formed from two layers of polycrystalline silicon so as to prevent contamination of the gate oxide by the BPSG dopants.

Abstract: An optical disk drive is disclosed in which sensing the position of a tilting prism driven by a fine tracking actuator uses the optical beam prior to its interaction with an optical disk. The optical beam emitted by a laser is redirected by the tilting prism. Most of the optical beam is reflected by the tilting prism in a direction through an objective lens for focused interaction with an optical disk. assuming a disk is mounted in the optical disk drive. The remainder of the optical beam is transmitted through the tilting prism, including any offset of the beam resulting from the refraction characteristics of the tilting prism, and received by a split far field detector. The split far field detector measures the offset of the optical beam which is a direct measure of the rotational position of the tilting prism. A relative position error signal is then generated and input to the coarse tracking actuator to coordinate its operation with that of the fine tracking actuator.

Abstract: The invention synchronizes the refresh cycles of a bank of self-refreshing DRAMs. The refresh cycles are synchronized through a bidirectional control path from each self-refreshing DRAM to its respective external refresh pin. An arbitration circuit determines the self-refreshing DRAM having a fastest timing sequence, maintains that timing sequence and shuts down all timing circuits having slower timing sequences. The arbitration circuit of each self-refreshing DRAM provides a refresh signal to each respective refresh circuit.