Abstract: In order to effectively perform image stabilization by control of retaining initial characteristics of a photosensitive body, if correlation between initial and aged values corresponding to bright and dark part signals of the photosensitive body is such that a variation between the initial and aged values of the dark part signal (dark .DELTA.) is greater than a variation between the initial and aged values of the bright part signal (bright .DELTA.), an image stabilizer, first, controls a charging characteristic of the aged values by changing a charging output to the photosensitive body so that the bright .DELTA. and the dark .DELTA. are equal to each other. Next, the image stabilizer makes the aged characteristics of the photosensitive body virtually identical to the initial characteristics by changing an exposure output so that the aged and initial values of the dark part signal become equal to each other.

Abstract: A recording and reproducing apparatus including a defects-list storing section for storing a defects list of a list area of an optical disk provided with a defective sector alternate function, an alternate sector storing area for storing data of an alternate sector of the optical disk, and a writing and reading controlling section for writing the defects list and the data of the alternate sector indicated by the defects list in the defects-list storing section and the alternate sector storing area when the optical disk is loaded in the main body of the apparatus. Since the data of the defective sector is written in the alternate sector storing area in advance, it is possible to read the data based on the defects list whenever necessary. Consequently, there is no need to scan the alternate sector of the optical disk, thereby reducing a lowering of the data transmission speed.

Abstract: A reflection-type liquid crystal display device includes a first substrate formed of a material which allows transmission of visible light therethrough; a second substrate opposed to the first substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a light absorbing layer provided on the second substrate for absorbing the visible light; and a holographic color reflective film provided on the light absorbing layer and having a light reflecting area for reflecting light of a prescribed wavelength range of the visible light.

Abstract: A digital image forming apparatus includes a CCD optical unit and an information editing section. The CCD optical unit inputs image information to an image control unit (ICU) upon an instruction to start image formation input through an operation panel. The information editing section inputs the image information to the ICU upon an instruction to start image formation input by a keyboard. The ICU stores the image information input from the information editing section page by page depending on an image processing mode specified through the operation panel and the keyboard, and successively performs image processing on the stored image information page by gage. With this arrangement, various image editing functions of a digital copying machine is effectively used for image information input from the information editing section.

Abstract: An optical disk is provided with grooves, which have first and second regions. A first side wall of a groove in the first region is wabbled, while a second side wall of the groove, which is opposite to the wabbled side wall in the first region, is wabbled in the second region. The tracking of a light beam is carried out with respect to the first and second regions, so that first amplitude of a first wabble signal and second amplitude of a second wabble signal, which are contained in a tracking error signal, are obtained. The first and second amplitude are compared, and a correction signal which varies depending on the difference in the amplitude is given to the tracking error signal, so that the first and the second amplitude are corrected to be substantially equal. Thus, it is possible to correct a deviation caused by an error in conditioning optical elements, an aberration of optical elements, and a change due to aging.

Abstract: The present method for accessing a data in a common accessing medium into and out of which the data are parallelly written and read respectively includes steps of: a) determining a reference data length according to a data-writing rate at which the data is written into the common accessing medium, a data-reading rate at which the data is read out of the common accessing medium, and a data length of the data; b) writing the data into the common accessing medium at the data-writing rate; c) reading the data out of the common accessing medium at the data-reading rate when a data length of the written data in the step b) is up to the reference data length; and d) keeping on respectively writing into and reading out of the common accessing medium the data until the data is completely written into and completely read out of the common accessing medium. By this method, an optimal accessing efficiency can be obtained.

Abstract: A clock reproduction unit provides a reproduced clock signal from a received PPM signal. The results of sampling the PPM signal with a reproduced clock signal is held by a sample result holding unit. Symbol synchronization is achieved from a received PPM signal by a symbol synchronizing signal generation unit. According to the sample result, the reproduced clock signal, and symbol synchronization, a reception data reproduction unit analyzes the result of a plurality of previous samples to decode reception data according to a specific procedure.

Abstract: An expandable memory system and a method for operating a memory system having a variable number of memory banks are described. The memory system can utilize a variable number of separately replaceable memory banks which can be implemented with memory element, such as dynamic random access memory chips, which are of differing speeds and or sizes. The memory system implements an interleaving of memory addresses among the memory banks as a function of the number of banks actually present so that successive memory accesses are not unnecessarily delayed by the recovery times of the memory elements. The memory system includes a programmable address decoder having a writable memory which provides bank address signals. Each of the banks includes a respective delay line for providing an output signal a respective presettable time after address signals are received by that bank for signalling to the host that data is ready to be transferred.

Abstract: A cache management system and method monitors and controls the contents of cache memory. Cache memory is organized into at least a first section for storing data waiting to be written to a longer term data storage device, and a second section for storing data elements which have been written to the longer term data storage device. A time indication provider provides a time indication signal to a cache indexer, for maintaining a cache index representing data elements which are stored in cache as well as an indication that a data element must be written to a longer term data storage device. A cache manager is responsible for placing data elements into and removing data elements from the cache memory. The cache manager determimes the amount of time that the data element has been stored in cache as well as the average period of time that elapses between a data element being inserted in cache and being removed from cache.

Abstract: An extension tube system for a dust particulate dispenser and a method of using the extension tube system are disclosed. The system includes a flexible duster extension tube having a central body portion with a first diameter, a first coupling end with a larger diameter, and a second dispensing end with a smaller diameter. Additionally, the second dispensing end includes a dust particulate collection region which serves to prevent dust particulates from spilling out of the duster extension tube when such action is not desired. The first coupling end is inserted over an outlet region of a dust particulate dispenser. Additional extension tubes can be connected to the second dispensing end of an extension tube to extend the reach to an area where dust particulates must be applied. A flexible duster extension tube cleaner having a cleaning element is used to clean remaining dust particulates from within the extension tubes.

Abstract: An anchoring device for anchoring a threaded member in a substrate material includes a plastic anchoring sheath for receiving the screw. The plastic anchoring sheath includes annular anchoring ribs formed around a body portion of the anchoring sheath and at least three longitudinal ribs extending along at least a portion of the body portion of the anchoring sheath preferably parallel to a longitudinal axis of the anchoring sheath. The longitudinal ribs extend outwardly from the anchoring sheath and lie in different planes which intersect at the longitudinal axis of the anchoring sheath. The anchoring sheath preferably includes top and bottom regions which have no annular or longitudinal ribs. The plastic anchoring sheath may be coated with a resilient, elastomeric coating.

Abstract: A transportable basketball net assembly for temporary use on a basketball rim, installed from the ground using only the basketball. Installation is accomplished by gathering and holding the net material to one side to close the lower end of the net, inverting and disposing the net assembly over the basketball, then throwing the ball and net assembly into position on the basketball rim, the net then falling open under the weight of the falling ball. The net assembly is dislodged and removed by throwing the ball up through the rim, contacting the net and the flanged collar with upward force from below.

Abstract: A power interconnect system for electronic assemblies, for providing electrical connections between a power supply and a remote electrical conductor element, such as a power bus bar. An electrically insulating block is connected to a bus bar, and holds captive a power coupling connector element for engaging and connecting the bus bar to a power supply. The power coupling connector element includes a conductive end and an insulative end to prevent the supply from shorting out or shocking a maintenance person in contact with the insulative end even when the system is powered up. The conductive end has a larger diameter than the insulative end and the entire power coupling connector element is held captive within the block of insulating material when mounted to a power bus bar, to prevent the power coupling connector element from becoming loose within an electronic assembly.

Abstract: An exterior surface mount for mounting a member such as a vent or pipe on an inclined roof or a wall of a building in which the member extends through an opening in the wall or roof. The mounting is disposable on the exterior of the wall or roof wholly from within the building. The mount includes an upper support or flashing member having a peripheral flange with dimensions that are larger than the opening so the flashing member covers completely the opening. The opening has one dimension larger than the smallest dimension of the flashing so that the flashing member can be slipped through the opening from the inside of the building and fitted on the outside of the wall or roof. A member receiving aperture is disposed within the flashing and is arranged to receive the vent or pipe. Gasketing is provided to seal any spaces between the aperture and the exterior of the member.