Abstract: An image management system is proposed that can display the same image in the same appearance on each image display device connected to a network independent of individual hardware characteristics. When an image file server that manages diagnostic images transfers the diagnostic image to an image display device connected to the network, it transfers a gradation table describing a gradation correction curve corresponding to the type of display of the image display device to be a destination as well. On the side of the image display device, the diagnostic image will be displayed in the same appearance independent of local characteristics such as hardware or the like by performing luminance correction on the diagnostic image referring to the received gradation table.

Abstract: In a fingerprint identification system, a fingerprint sensor 104 of a registration apparatus 2 reads a fingerprint in a larger region, whereas a fingerprint sensor 30 of an identification apparatus 4, which is smaller in size, reads a fingerprint in a smaller region. When registering a fingerprint, the fingerprint sensor 104 of the registration apparatus 2 reads a fingerprint, and a fingerprint registration circuit 14 generates binary image data based on the fingerprint which has been read. The binary image data is transferred to the identification apparatus 4 and stored in an image memory 16 of the identification apparatus 4. When identifying a fingerprint, the fingerprint sensor 30 of the identification apparatus 4 reads a fingerprint, and a fingerprint identification circuit 32 generates binary image data based on the fingerprint which has been read. Then, the binary image data is compared against the binary image data stored in the image memory 16.

Abstract: A plurality of radiation image signals respectively representing a plurality of radiation images of an object, which radiation images have been formed with several kinds of radiation having different energy distributions, are obtained. An energy subtraction image signal is formed from the plurality of the radiation image signals. The energy subtraction image signal is formed as an energy subtraction image signal having a pixel density lower than the pixel density of each of the radiation image signals. The energy subtraction image signal is efficient for transfer to an external device, storage in an external device, and outputting of a visible image with an output device.

Abstract: A plurality of radiation image signals respectively representing a plurality of radiation images of an object, which radiation images have been formed with several kinds of radiation having different energy distributions, are obtained. An energy subtraction image signal, which has been formed from the plurality of the radiation image signals, is also obtained. Compression processing is performed on the plurality of the radiation image signals and the energy subtraction image signal. The energy subtraction image signal is compressed with a compressibility higher than the compressibility with respect to each of the radiation image signals.

Abstract: The present invention provides an image management system and image management method for automatically retaining necessary diagnostic image files without relying on manual operations and thereby averting the risk of involuntary data deletion. An image file server connected to modality apparatuses and image viewers permanently archives diagnostic images with a record indication attached automatically on a removable medium. It also displays the image once, and if there is no user indication within a certain period of time after displaying, then it permanently archives the diagnostic image automatically. Alternatively, the diagnostic image may be temporarily stored once with a reservation for permanent archiving, then after a certain period of time it may be permanently archived automatically. When no removable medium is loaded, a reservation may be made for permanent archiving.

Abstract: The display method and apparatus display colors used in color information on a display unit capable of displaying gray scale. The method and apparatus convert the colors into gray scale values so as to enable differences in the colors to be identified even when the colors are displayed based on the gray scale on the display unit, and then display the color information on the display unit by utilizing the converted gray scale values as the colors. The method and apparatus can recognize meaning of the differences in original colors even in the case of displaying color information on a monochrome display (the display unit capable of displaying the gray scale).

Abstract: In a method for displaying images on a display device having a predetermined size, m.times.n frames of matrix-like subset images including at least a single desired image, the subset images being among a plurality of images in a set of control format images, which are to be displayed on the display device and in which the plurality of the images are arrayed in a matrix-like form comprising M.times.N frames, wherein M>m and N>n, are enlarged with a scale of enlargement such that the subset images may be displayed simultaneously with a maximum possible size on the display device. The enlarged subset images are simultaneously displayed on the display device. The desired image is thereby displayed legibly such that it can be used as an effective tool in, particularly, the accurate and efficient diagnosis of an illness.

Abstract: A disc drive unit for driving a disc recording medium such as a magneto-optical disc accommodated in a disc cassette, comprises a chassis, a cassette holder having a pair of wall sections and moveable up and down between upper and lower positions with respect to the chassis, and the disc cassette being injectable into and ejectable from the cassette holder, a disc rotating mechanism being moveable up and down between upper and lower positions with respect to the chassis and chucked with the disc recording medium for rotatively driving the disc recording medium, height-level positioning members provided at the chassis, so that at least their upper ends are located at a higher level than the lower wall section of the cassette holder, when the cassette holder is held at its lower position, and a loading motor unit for shifting the cassette holder from its upper position to its lower position and for shifting the disc rotating mechanism from its lower position to its upper position, during loading of the disc cas

Abstract: A disc drive unit for a magneto-optical disc accommodated in a disc cassette, comprises a magnetic head for applying a magnetic field to the magneto-optical disc, a magnetic head moving mechanism for moving the magnetic head between a loading and unloading position, an eject mechanism for ejecting the disc cassette, a reversible motor, and a transmission device for transmitting a rotational force of the reversible motor to the magnetic-head moving mechanism by rotation of the motor in its one rotational direction and for transmitting the rotational force of the reversible motor to the eject mechanism in its other rotational direction whereby a controller is provided for controlling the reversible motor so that a rotational speed of the motor in the other rotational direction used for the eject mechanism is faster that the rotational speed of the reversible motor in the one rotational direction used for the magnetic-head moving mechanism in order to ensure the quick ejection of the disc cassette.

Abstract: A disc driving apparatus for driving a disc recording medium on which a plurality of sets of user data and a plurality of unique data, each of which is related to each set of the user data, are recorded, and including a reproducing circuit for reproducing the unique data and the user data recorded on the disc recording medium, an error correction circuit for correcting errors in the data reproduced by the reproducing circuit and detecting an error rate of the data reproduced by the reproducing circuit, and a data replacement circuit for recording the unique data which is error-corrected by the error correction circuit in a replacement area of the disc recording medium when the error rate of the unique data is higher than a first reference error rate and for recording the user data which is error-corrected by the error correction circuit in the replacement area of the disc recording medium when the error rate of the user data is higher than a second reference error rate which second reference error rate is dif

Abstract: A recording/reproducing apparatus, such as an automatic changer for optical discs for recording/reproducing signals on or from the optical discs. The apparatus includes a unit for recording/reproducing signals on or from a recording medium, a recognition unit for recognizing the state of the recording/reproducing unit, a first interfacing unit for exchanging the information between the recording/reproducing unit and the recognition unit, a second interfacing unit for exchanging the information between the recognition unit and a first external equipment, and a third interfacing unit, separate from the second interfacing unit, for exchanging the information between the recognition unit and the second external equipment. The information is exchanged between the recognition unit and the second external equipment by the third interfacing unit as the connection between the recognition unit and the first external equipment by the second interfacing unit is maintained.

Abstract: An image displaying apparatus comprises a first storage device for storing a plurality of kinds of setting information for setting a display mode, in which images are displayed, a second storage device for storing various combination patterns of the plurality of kinds of setting information, which are stored in the first storage device, and an input device for inputting identification information. In accordance with the inputted identification information, a first selection device selects a combination pattern, which corresponds to the inputted identification information, from the second storage device. In accordance with the selected combination pattern, a second selection device selects pieces of setting information, which correspond to the selected combination pattern, from the first storage device. A display device displays the images in a display mode, which corresponds to the selected pieces of setting information.

Abstract: A disc driving apparatus for driving a disc recording medium on which a plurality of sets of user data and a plurality of unique data, each of which is related to each set of the user data, are recorded, and including a reproducing circuit for reproducing the unique data and the user data recorded on the disc recording medium, an error correction circuit for correcting errors in the data reproduced by the reproducing circuit and detecting an error rate of the data reproduced by the reproducing circuit, and a data replacement circuit for recording the unique data which is error-corrected by the error correction circuit in a replacement area of the disc recording medium when the error rate of the unique data is higher than a first reference error rate and for recording the user data which is error-corrected by the error correction circuit in the replacement area of the disc recording medium when the error rate of the user data is higher than a second reference error rate which second reference error rate is dif

Abstract: A data transmission apparatus includes first and second interfaces for interfacing a data signal in response to a command from an external device. First and second interface controllers control the first and second interfaces, respectively. A memory temporarily stores the data signal. A first controller is connected to the first and second interfaces and to a second controller. The first interface controller generates a first table and supplies the first table to the second controller. The second controller determines whether the command causes data transfer using the first table, and controls the first controller to analyze the command if the command causes data transfer. The first controller generates memory information including an access position and source and destination addresses. A designated source interface controller stores the data signal in the memory, then a designated destination interface controller reads the data signal from the memory.

Abstract: A disc driving apparatus for driving a disc recording medium on which a plurality of sets of user data and a plurality of unique data, each of which is related to each set of the user data, are recorded, and including a reproducing circuit for reproducing the unique data and the user data recorded on the disc recording medium an error correction circuit for correcting errors in the data reproduced by the reproducing circuit and detecting an error rate of the data reproduced by the reproducing circuit, and a data replacement circuit for recording the unique data which is error-corrected by the error correction circuit in a replacement area of the disc recording medium when the error rate of the unique data is higher than a first reference error rate and for recording the user data which is error-corrected by the error correction circuit in the replacement area of the disc recording medium when the error rate of the user data is higher than a second reference error rate which second reference error rate is diff

Abstract: A method of accessing a disc-shaped recording medium including the steps of (a) recording defect information on the disc-shaped recording medium including a first logical address data of defective sectors, the first logical address data being a serial logical address data assigned to all sectors including both effective and defective sectors, (b) recording on a predetermined physical location of the disc-shaped recording medium disc information containing recorded physical position information of the defect information which represents a physical data structure, (c) reading out the disc information from the disc-shaped recording medium, (d) reading out the defect information using the physical recorded position information contained in the disc information read out at step (c), (e) generating a first table using the defect information which is used to convert the first logical address data into a second logical address data, the second logical address data being an address data assigned only to the effective

Abstract: A disc driving apparatus using SSA (sector slipping algorithm) for defective sectors and LRA (linear replacement algorithm). This disc driving apparatus is simple in arrangement and can reproduce data at high speed in a simple processing on the basis of attribute data representing whether a defective sector is processed by the SSA or the LRA. This disc driving apparatus includes an optical head for reproducing data recorded in an optical disc, a drive controller for controlling operation of the optical head, a memory for temporarily storing reproduced data, a DMA (dynamic memory access) controller for controlling an access to the memory, and a system controller for controlling the drive controller and the DMA controller by supplying first and second command signals thereto in response to a main command signal requesting a write or read operation on a series of sectors.

Abstract: A disc driving apparatus using SSA (sector slipping algorithm) and LRA (linear replacement algorithm) for defective sectors. This disc driving apparatus is simple in arrangement and can reproduce data at high speed in a simple processing on the basis of attribute data representing whether a defective sector is processed by the SSA or the LRA. This disc driving apparatus includes an optical head for reproducing data recorded in an optical disc, drive controller for controlling operation of the optical head, a memory for temporarily storing reproduced data, a DMA (dynamic memory access) controller for controlling access to the memory, and a system controller for controlling the drive controller and the DMA controller by supplying first and second command signals thereto in response to a main command signal requesting a write or read operation on a series of sectors.

Abstract: A radiation image is processed in a radiation image read-out and reproducing system wherein a read-out operation is carried out in which a stimulable phosphor sheet having a radiation image stored thereon is exposed to stimulating rays, which cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during exposure to radiation, and wherein the emitted light is photoelectrically detected and a read-out image signal which represent the radiation image is thereby obtained, said read-out image signal being used to reproduce the radiation image as a visible image. A radiation image processing method comprises the steps of calculating characteristic values, which serve as tools in the extraction of only those image signal components related to a diagnosis, or the like, from the read-out image signal, and carrying out transformation processing on the read-out image signal, the exact nature of the transformation depending on the characteristic values.