Abstract: An antenna apparatus for a keyless entry device is also used for receiving a radio wave transmitted by a remote control unit within a vehicular compartment. The keyless entry device and the remote control unit are configured to generate respective radio waves having a common frequency. Both radio waves can be received by at least one antenna of a column switch and a steering wheel. The antennas are placed distant from the steering shaft and common ground pattern to improve transmitting and receiving sensitivity.

Abstract: There is provided a method for manufacturing a lead frame which can easily manufacture a high quality lead frame.A pattern layer is selectively formed on a copper plate and the surface of the substrate having formed this pattern layer is then plated with gold to form a gold layer using the pattern layer as the mask. Next, the gold layer is then plated with copper to form a copper layer, thereby forming a fine lead consisting of two layers of gold layer and copper layer. Thereafter, the pattern layer is selectively removed, an insulated resist film is formed and the copper plate is etched. In this case, the gold layer is used as the etching stop layer. Thereby, the lead frame having the fine lead of double-layer structure can be formed.

Abstract: An address transition detector (ATD) detects a change of address and generates a pulse signal Sc. A control circuit generates a pulse signal Sd and outputs it to a booster circuit in response to a timing of completion of the signal Sc. The booster circuit generates a boosted voltage higher in level than a power supply voltage during an active period of the signal Sd and outputs it to a decoder. The decoder holds the control gate of the output transistor connected to the word line selected in response to the address at a first voltage level, then inputs the boosted voltage to one of the source and drain electrodes so as to hold the gate at a second voltage level higher than the first voltage level by exactly the boosted voltage using capacitive coupling between the control gate and the one of the source and drain electrodes, whereby it outputs a boosted voltage to the other of the drain and source electrodes and drives the word line connected to the other of the drain and source electrodes.

Abstract: A system for monitoring the proximity and location of a child by a parent includes two transceiver units which communicate wirelessly. The child unit will transmit a signal to the parent unit so that the parent unit can determined the proximity of the child unit and its direction. A safe zone may be set by controls on the parent unit. When the child unit moves beyond the safe zone, the parent unit will generate an alert.

Abstract: A mask pattern including an auxiliary pattern for improving printing accuracy is easily formed. A process of making the auxiliary pattern includes the steps of: providing an auxiliary pattern forbidden region around an original pattern based on the original pattern formed by an original pattern generating means (step S1); providing an auxiliary pattern formation region around the auxiliary pattern forbidden region based on the auxiliary pattern forbidden region provided in step S1 (step S2); and forming an auxiliary pattern of specific width based on the auxiliary pattern formation region provided in step S2 (step S3). Such formation of the auxiliary pattern prevents neighboring two traces of auxiliary pattern from touching or overlapping each other, for example. An auxiliary pattern is easily formed even if an original pattern is a complicated one without repeatability.

Abstract: In a magnetic head having a recording and/or reproducing portion for recording and/or reproducing a signal on/from a magnetic tape and arranged in such a manner that the recording and/or reproducing portion of the magnetic head is made in contact with an edge portion of the magnetic tape along a width direction of the magnetic tape, the recording and/or reproducing portion of the magnetic head is comprised of: a magnetic core for recording and/or reproducing the signal on/from the magnetic tape while being made in contact with the magnetic tape; a first slider made of a material having an abrasion characteristic lower than that of the magnetic core, for being slid on the edge portion of the magnetic tape along the width direction thereof; and a second slider made of a material having an abrasion characteristic higher than that of the magnetic core, and arranged between the magnetic core and the first slider.

Abstract: A nonvolatile semiconductor memory device capable of being changed in method of use according to its application and in addition having a high reliability and an IC memory card using the same. An IC memory card is provided with multi-level type flash memory chips and a controller as principal constituent elements and constituted so as to allow free selection of plurality of operation modes according to the application, that is, use where a storage capacity is large, but there is a reduction in the write/erase speed or the guaranteed number of the repeated rewrites or use where the storage capacity is small, but there is no reduction in the write/erase speed or the guaranteed number of the repeated rewrites.

Abstract: A method for authenticating digital storage devices, including compact discs, CD-Roms, DVDs and floppy discs, is provided. A predetermined "fingerprint" code is embedded in one or more of the parity bytes which are always appended to the end of data frames for the purpose of detecting and correcting errors in the data frames as they are read from the digital storage devices by playback devices, such as CD players, computers, and DVD players. The "fingerprint" code is embedded during the mastering process of the originally-produced, authentic storage device by a "fingerprint" encoder implemented by either hardware or software. The "fingerprint" is not transferred to target storage devices when the original storage device is copied because standard duplicating equipment do not have the "fingerprint" encoder which will be used by mastering equipment.

Abstract: A flexible diaphragm, flexible bag or bladder tank used to store and dispense, cool or heat, and sterilize drinking water or beverages under pressure, may include at least one orifice, at least one ultraviolet sterilizing unit located within it, and at least one thermo-electric unit attached to or inserted within it.

Abstract: A semiconductor nonvolatile memory device where the source line is selected and the channel portions of NAND strings adjacent in the row direction are charged up to the programming prohibit potential, the programming prohibit potential charged in the channel portion of the NAND strings is discharged to the bit lines according to the content of data to be programmed, and then the programming voltage is supplied to the selected word line and page programming is carried out together for memory transistors connected to the selected word lines. By this, the memory is suited for operation by a single power supply at a low voltage, enables easy layout of the data latch circuits for every bit line, and in addition performs a data programming operation with a good disturb tolerance.

Abstract: In a switching power source, by alternately turning on the first and second MOS transistors, a resonance current flows to a primary winding of a transformer, and an alternate current is transmitted to a secondary side. With respect to an alternate signal generated in a secondary winding, a gate voltage is applied so that the third MOS transistor and the fourth MOS transistor are conductive, respectively, while the polarity of the alternate signal is positive. Rectifying currents are flowed to a capacitor and a full-wave rectification is executed. Since a control signal for synchronous control is supplied from a signal source to control the first and second switching elements via transformers, a switching timing can be accurately coincided with an on/off timing of a synchronous rectifying device by a simple circuit. The efficiency of a current resonance type switching power source is thus improved.

Abstract: A parallel port to serial digital fiber link converter has a first high speed communications port connected to a first shift register for converting a serial digital signal, received from a first digital device via a first high speed communications link, to a parallel signal and transferring it to a personal computer via a parallel port. A second shift register and second high speed communications port are used for converting parallel data, retrieved via the parallel port of the personal computer, into serial digital data and sending it to a second digital device via a second high speed communications link for storage or playback.

Abstract: A sliding switch contact structure that has a movable contact and a fixed contact which are formed of a stainless steel, an Fe--Ni alloy, an Fe--Ni--Co alloy, or an Fe--Ni--Cr alloy. With such structure, a contact material is provided that is usable in a slide switch operating in high temperature oil contained within a transmission, an engine or a brake hydraulic system of an automotive vehicle.

Abstract: A audiovisual program image is displayed on a display panel, and the audiovisual program image is enlarged by a lens and then incident to the eye balls of a user, whereby the virtual image corresponding to the audiovisual program image is observed on the eye balls of the user. Further, a perception image to make the user perceive the distance to the virtual image corresponding to the audiovisual program image and the size of the virtual image is displayed at the surrounding portion of the display portion of the audiovisual program image on the display panel, and the perception image is also enlarged by the lens and then incident to the eye balls of the user, whereby the virtual image corresponding to the perception image can be observed on the eye balls of the user.

Abstract: A liquid crystal display device and a liquid crystal projector using the same are provided for suppressing reduction in liquid crystal properties due to heat and light by precisely shielding light in regions other than a region irradiated with light corresponding to effective pixels. Light-shielding substrates are each brought to absolute contact with a back of a drive substrate and a front of an opposed substrate, respectively. One of the light-shielding substrates is provided with a frame-shaped light-shielding film formed in a region on a surface of a transparent substrate opposed to a non-irradiated region in the drive substrate. Similarly, the other of the light-shielding substrates is provided with a frame-shaped light-shielding film formed in a region on a surface of a transparent substrate opposed to a non-irradiated region in the opposed substrate. The light-shielding films each have an excellent light-shielding property with optical density of 3.0 or above, for example.

Abstract: A digital signal transmission apparatus, wherein at the time of normal data transmission, an output circuit of a transmitter unit selects transmission data SDAT and converts it to a differential signal for output to the transmission line, while a clock recovery circuit of the receiver unit generates a clock signal LCK matching the frequency of the transmission clock signal TCK and receives the signal based on the same. When the clock signal LCK and the received signal deviate in frequency, the clock reproduction circuit outputs a common mode reference clock request signal to the transmission line. In accordance with this, the transmitter unit selects the reference clock signal RCK for output to the transmission line. The clock recovery circuit of the receiver unit uses this to make the frequency of the clock signal LCK match the transmission clock signal.

Abstract: A deposit removal high pressure spray apparatus for removing heat conduction inhibiting deposits on U-tubes at the top of a shell and tube type of nuclear steam generator (10) tube bundle (16) by crawling along flanged outboard support beams (18) above the U-tubes bundle. The apparatus includes: a crawler (66) with motive means 68 for "inch worm" movement; a rotationally driven base 62 provides movement of the sprayhead to either side of the outboard support beam; a rotationally driven extension arm 60 on rotating base 62 has an elongated reciprocally driven elevator 58 thereon; and, a wrist 52 reversibly and rotatably driven by motor 54a sweeps sprayhead 52 with nozzles 56 to clean the top of the bundle 16 tube lanes of 90.degree., 45.degree. and 135.degree. efficiently.

Abstract: A wrapping method in which a wrapped product is wrapped by a sheath film and partly-overlapped portions of the sheath film are melt-bonded by heat to heat-seal the sheath film. When the user opens the sheath film, the user can tear the same with ease. A heat sealing area of the sheath film (1) is printed by a halftone printing portion (10) to uniformly reduce the whole bonding area, thereby decreasing a bonding strength.

Abstract: A paper roll supply system for a printing press system comprises a paper roll storage portion having a plurality of vertically arranged shelves for storing a plurality of paper rolls in desired orientation and a paper roll delivery outlet for the paper roll storage portion, the paper roll delivery outlet being positioned in alignment with a paper roll supply station along a substantially straight paper roll transporting path, by way of which a paper roll is transferred to a printing press. For supplying the paper roll to the printing press system, a paper roll transporting means is disposed between the paper roll delivery outlet and the paper roll supply station for transporting a paper roll along the paper roll transporting path.

Abstract: A tape cassette includes a shell, first and second bosses arranged on the inner surface of the shell, and a prism mounted on the inner surface of the shell and formed with first and second holes and having an optical axis which corresponds to an optical axis of light emitted from a tape-position sensor of a drive. The first and second bosses are arranged through the first and second holes. When the first and second bosses contact the inner peripheral surfaces of the first and second holes, a first clearance between the first boss and the first hole and a second clearance between the second boss and the second hole is produced in the opposite direction of the first and second bosses with respect to the optical axis of the prism.