Abstract: An optical pickup device capable of irradiating laser beams on a signal recording surface of a magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed access.

Abstract: The present invention provides a disc drive apparatus which identifies a type of a disc mounted on the apparatus by using reflected beam data obtained from a laser beam focused on the disc surface and other reflected beam data obtained from the laser beam being focused on the disc signal plane. For example, while forcibly changing the laser beam focusing point within a variable range at a predetermined velocity, a luminous energy signal or a focus error signal is used to count a time difference between a timing of focusing on the disc surface and a timing of focusing on the disc signal plane. According to the time difference obtained, the disc mounted is identified as a first type of disc or a second type of disc.

Abstract: A laser light source unit generates second higher-harmonic waves or sum-frequency waves by using an external resonator. The light source unit has a wavelength converter which incorporates an external resonator. A modulator spatially modulates the output light from the converter, thereby removing speckle noise. An optical waveguide propagates the laser light from the modulator to a given optical apparatus. The wavelength converter, the modulator, and the optical waveguide are mechanically separated. Moreover, vibration isolating members are provided to inhibit vibrations. Thus, any change in the length of the resonator or the optical axis caused by external vibrations is prevented. Further, a speckle pattern generated in propagating through an optical fiber is eliminated.

Abstract: A composition and method for producing a multiple boiling point ether gasoline component is provided. A mixed alcohol composition including predominantly C.sub.1 -C.sub.3 alcohols is reacted with an alkene stream to produce a mixture of ethers having different boiling points. The ether mixture is useful, when blended with gasoline, to increase oxygenation and overall motor fuel performance.

Abstract: An optical recording method according to the invention is provided such, that when an optical pickup (2) is moved over an optical disk (1), the optical pickup (2) being positioned onto the target track location, record marks are recorded on the optical disk (1) by a light beam irradiated onto the optical disk (1) through the optical pickup (2). An irradiation position of the light beam is offset during recording by a predetermined amount to a track at the recording direction side relative to the target track location, and a record mark is formed on a target track by the offset light beam.

Abstract: The objectives of the invention is to obtain the complex cell structured material which has the advantages of toughness and of being light in weight. Also it is economical when utilized in the field of the general structural materials such as architecture, civil engineering, machinery structure field, automobiles, ships, cars, aircrafts, space crafts, space stations, submarines. The manufacturing of this invention also consists of simple procedures. A complex cell structure is comprised of a maintained spatial surface on which is the complex cell bodies are bonded. The complex cell bodies are distributed/bonded on the maintained spatial surface. The maintained spatial surface is rolled, annual ring shaped, whirlpooled, laminated, plate shaped or crossed. The liquid coagulant fills the empty space. The coagulant is coagulated to produce the complex cell structure. Also, the method to produce is as follows. Prepared complex cell bodies are composed of rigid sections and a light material.

Abstract: The invention provides a method for effectively removing the cause of a thermal asperity (TA) phenomenon occurring at an MR head incorporated in a disk storage system. If a read error occurs in data read by the MR head, a CPU executes a usual read retry operation. If the read error is not removed by the usual read retry operation, the CPU presumes that the read error is caused by the thermal asperity phenomenon occurring at the MR head. Then, the CPU controls the MR head to move to a CSS zone on the disk, thereby executing a TA removal operation so as to remove a fine particle such as dust attached to the MR head. In the TA removal operation, the rotational speed of the disk is reduced so that the MR head can be brought into contact with the disk in the CSS zone.

Abstract: In a composite digital copying machine of a plain paper copying machine, a printer, and a facsimile apparatus, when the machine is operated as a printer for printing out document data of codes created by a wordprocessor, an internally obtained data image is compressed and stored, as image data, in a hard disk simultaneously with print processing of the data. When this printout is to be copied later, the original image data is searched or retrieved to be printed without scanning the printout.

Abstract: An optical pickup device which assures interchangeability between plural types of optical discs with different layered structures, such as CD, CD-R or DVD, which is reduced in size and which realizes reproduction of high reliability information signals.

Abstract: A flash memory architecture relies on a single, time-shared address bus to enable a read operation to be performed simultaneously with an algorithm operation when the read operation is targeted for a memory cell block that is not currently tagged for an algorithm operation. After a read address has been latched into the array block selected for the read operation, the address bus is "free" for the remainder of the read operation cycle. During this free time, the address bus can be used for algorithm operations to load the counter address into an active tagged block in the array. Separate global data I/O lines are provided to facilitate simultaneous read and algorithm operations.

Abstract: The present invention provides a golf exercise apparatus that includes a resistance such that during an exercise emulating a golf swing, muscles of the axial skeleton and lower extremities of a golfer are strengthened. The golf exercise apparatus includes a support base, an axial shaft coulpled to the support base, and means for resisting the muscles of the golfer during the golf swing when the golfer is coupled with the shaft of the exercise apparatus. The golf exercise apparatus preferably provides progressive resistance to the muscles of the golfer during a downswing of the golfer. The support base preferably comprises at least one end having a reverse bevel such that the support base is securable under a closed door by wedging the end having the reverse bevel under the door. Alternatively, a support frame is coupled to the support base by wedging the end having the reverse bevel with the frame.

Abstract: An image decoding apparatus decodes transmitted compressed image data. The apparatus includes a receiving buffer for temporarily storing the compressed image data, a decoder for reading compressed image data stored in the receiving buffer corresponding to proceeding conditions of a decoding process and decoding image data of one frame within a period equal to the frame period of the image or within a period shorter than such frame period, and an eliminating circuit which is providing in the receiving buffer to supply the compressed image data to the receiving buffer after eliminating invalid code to prevent underflow of data in a send buffer provided in an image coding apparatus.

Abstract: An intelligent strobe system for vehicle applications includes strobe modules connected between the positive and negative DC power rails of the vehicle. One of the strobe modules includes a transmitter circuit for generating sinusoidal data and transmitting the data over the DC power rails. Other strobe modules include a receiver circuit to receive and decode the sinusoidal data to control the flash sequence.

Abstract: A method of making a pressure sensor or acoustic transducer having high sensitivity and reduced size. A thin sensing diaphragm is produced by growing a single crystal, highly doped silicon layer on a substrate using a chemical vapor deposition process. The diaphragm is incorporated into a pressure sensor or acoustic transducer which detects pressure variations by a change in the capacitance of a capacitor which includes the diaphragm as a movable member. The thin diaphragm produces a highly sensitive device which can be fabricated in a smaller size than sensors or transducers having thicker diaphragms.

Abstract: A method and circuitry are provided for generating a phase shift in the recovered clock in a high speed, digital data recovery phase locked loop. Since phase step injection can be done in a closed loop environment, the dynamic of the real time phase step response of the PLL can be analyzed using a phase meter. In an open-loop environment, the output of the phase meter with a step response of 60 degree phase shift tracks closely with the internal RC response at the multi-phase outputs of the PLL's phase-to-frequency converter. Since the register and capacitor values vary with process, the scheme for verifying the relative accuracy of the PLL's internal filters can be verified without actually probing the device.

Abstract: The present invention is an apparatus and method for stabilization of laser output beam characteristics by automatically adjusting the angular and the lateral positions of the output beam. A component of the output beam is detected at a far field location and also at a near field location along an optical path of the component. Both the angular and the lateral positions of the output beam are determined, as well as characteristics of the output beam, after the component is detected at both the near and the far field locations. Both the angular position and the lateral position of the output beam are automatically adjusted to optimize the output beam. The adjustment of both the angular position and the lateral position are made possible by using a beam steering device preferably including two mirrors.

Abstract: An automatic control system comprises a construction machine provided on a construction site and equipped with a ground leveling implement and a target; a survey unit for projecting a beam of tracking light toward the target and receiving reflected tracking light from the target to determine a coordinate position of the target; a storage unit for storing finished-plane height data corresponding to coordinate positions; a computation unit for determining a finished target height at the coordinate position of the target and for computing a deviation between the finished target height and a measured target height; and a transmitter for transmitting the deviation toward the construction site. The survey unit operates in a finished-height data drive mode in which the tracking light is moved vertically so that the height of the tracking light at the horizontal coordinate position is at the finished target height.

Abstract: A method is provided involving re-slicing a wafer after dual-side alignment and processing has been performed. This procedure provides twice as many processed electronic devices without increasing the number of loading, processing and unloading procedures performed or the total number of substrates used. Another method is provided for creating two processed chips by attaching two conventional substrates, processing IC's on each of the two exposed, polished sides and then detaching the substrates. This technique reduces the number of loading, processing and unloading procedures required to produce a given number of IC chips by half. An apparatus and further method provides two different subsystems of a single IC processed on opposite sides of the same chip. Such a device saves cost by using fewer substrates to make the same number of chips. Also, the method performs loading, processing and unloading procedures half as much to produce a given number of IC's.

Abstract: At a storage section, picture information of intermediate resolution and picture information of low resolution are formed on the basis of picture information of high resolution which has been read out from a frame memory. These picture information are caused to undergo fixed length encoding at a compression/expansion circuit. These picture data of three kinds of resolutions which have been caused to undergo fixed length encoding are respectively recorded in the order of reproduction and continuously onto an optical disk having tri-sected recording areas for respective resolutions. Thus, it is sufficient to read out, from any one of the recording areas, picture data of resolution corresponding to the equipment which outputs picture data. In addition, since the picture data of respective resolutions are continuously recorded in the order of reproduction, the seek time is eliminated thereby contributing to realization of high reproduction speed.

Abstract: An active pixel image cell which includes a photosensor, active devices for control of the sensor and readout of a signal representing the intensity of light to which the sensor is exposed, and a neuron MOSFET transistor which "both amplifies the signal from the photosensor and" simulates the behavior of a human neuron. An integrated neural network and imaging array may be formed by interconnecting a group of such pixels. Digital signal processing algorithms used for image processing may be implemented at the pixel level by appropriate interconnections between the output signals from the photosensor of surrounding pixels and the neuron MOSFET.