Abstract: An image recording/reproduction apparatus reads image data from a recording medium storing plural image data to display the read image data on a TV monitor or the like, and selects image data of a same aspect ratio to simultaneously index display plural small images of thus selected image data on the TV monitor. Reduced images of an aspect ratio of 4:3 and 16:9 are formed respectively from image data of an aspect ratio of 4:3 and 16:9, and the number of displayed small image is changed according to the aspect ratio, thereby displaying a larger amount of information within a limited display space in an easily recognizable manner.

Abstract: An image recording/reproduction apparatus reads image data from a recording medium storing plural image data to display the read image data on a TV monitor or the like, and selects image data of a same aspect ratio to simultaneously index display plural small images of thus selected image data on the TV monitor. Reduced images of an aspect ratio of 4:3 and 16:9 are formed respectively from image data of an aspect ratio of 4:3 and 16:9, and the number of displayed small image is changed according to the aspect ratio, thereby displaying a larger amount of information within a limited display space in an easily recognizable manner.

Abstract: This invention has as its object to allow information recording by maximally utilizing the size of a storage medium while maintaining compatibility to an electronic device which can handle only a storage medium initialized by the first file system to some extent. To this end, on a storage medium, two storage areas, i.e., a partition A initialized by the FAT16 file system to be accessed by a normal digital still camera, and a partition B initialized by the FAT32 file system that allows a still larger address space, are assured. A main image sensed by a camera unit is stored in the partition B, and a thumbnail image as its derivative information is stored in the partition A. Even when this memory card is attached to the conventional digital still camera, the thumbnail image can be browsed. Also, information indicating correspondence between the main image and corresponding thumbnail image is stored in the partition B as management information.

Abstract: A data processing apparatus includes: a data input section for receiving input of a plurality discrete data arranged at predetermined time intervals; a first-derivative adding section for adding a first derivative to each input discrete data; using a plurality of the discrete data with the additional first derivative, when a difference between one or a plurality of discrete data interposed between two discrete data and a value on a curve passing through the two discrete data points generated on the basis of the two discrete data, the first derivative, and time interval information of the two discrete data is within an allowable error, a homogeneity/heterogeneity conversion section for obtaining a plurality of discrete data having heterogeneous time intervals and the additional first derivative by thinning one or a plurality of the discrete data interposed between the two discrete data; and a heterogeneous-data generation section for generating the heterogeneous data.

Abstract: This invention has as its object to allow information recording by maximally utilizing the size of a storage medium while maintaining compatibility to an electronic device which can handle only a storage medium initialized by the first file system to some extent. To this end, on a storage medium, two storage areas, i.e., a partition A initialized by the FAT16 file system to be accessed by a normal digital still camera, and a partition B initialized by the FAT32 file system that allows a still larger address space, are assured. A main image sensed by a camera unit is stored in the partition B, and a thumbnail image as its derivative information is stored in the partition A. Even when this memory card is attached to the conventional digital still camera, the thumbnail image can be browsed. Also, information indicating correspondence between the main image and corresponding thumbnail image is stored in the partition B as management information.

Abstract: Controlling an information recording apparatus for recording information in a detachable, re-writable storage medium which has a storage size exceeding a maximum allowable size of a first file system. When externally input information is stored in a single storage medium having a first storage area initialized by the first file system, and a second storage area initialized by a second file system which can access an area that exceeds the maximum allowable size of the first file system, the externally input information is stored in the second area, and information derived from the externally input information is stored in the first area. Link information between the information stored in the second area and the derivative information stored in the first area is recorded in the second area as management information.

Abstract: A recording apparatus including a mounting portion configured to allow a rewritable recording medium and an unrewritable recording medium to be mounted thereon includes a determination unit configured to determine a file name with a number for recording a file on a recording medium mounted on the mounting portion, and a recording control unit configured to record, on the recording medium mounted on the mounting portion, the file using the file name determined by the determination unit, wherein the determination unit changes a file name determination method when the recording medium mounted on the mounting portion is replaced such that the rewritable recording medium and the unrewritable recording medium are replaced with each other.

Abstract: An image reproducing apparatus includes a selecting device, such as a button, a reproducing unit, and a display unit. The selecting device is used to select one of a first image display mode and a second image display mode. The reproducing unit reproduces four reduced images from a memory if the first image display mode is selected, and reproduces nine reduced images from the memory if the second image display mode is selected. The display unit displays the four reduced images in T period if the first image display mode is selected, and displays the nine reduced images in the T period if the second image display mode is selected, wherein each of the four reduced images is displayed for each T/4 period, and each of the nine reduced images is displayed for each T/9 period.

Abstract: A reproduction apparatus which transfers data is disclosed. The reproduction apparatus includes a reproduction unit which reproduces information data stored in a storage medium, a management unit which manages pieces of information data stored in the storage medium by classifying them into a plurality of groups corresponding to types of external storage media for storing information data reproduced from the storage medium, a communication unit which communicates with an external storage apparatus that stores information data in the external storage medium, and which receives medium information relating to the type of external storage medium from the external storage apparatus, a search unit which searches the plurality of groups for a group corresponding to the type of external storage medium based on the medium information received by the communication unit, and a display control unit which displays, on a display unit, information on the group detected by the search unit.

Abstract: A data processing apparatus includes: a data input section for receiving input of a plurality discrete data arranged at predetermined time intervals; a first-derivative adding section for adding a first derivative to each input discrete data; using a plurality of the discrete data with the additional first derivative, when a difference between one or a plurality of discrete data interposed between two discrete data and a value on a curve passing through the two discrete data points generated on the basis of the two discrete data, the first derivative, and time interval information of the two discrete data is within an allowable error, a homogeneity/heterogeneity conversion section for obtaining a plurality of discrete data having heterogeneous time intervals and the additional first derivative by thinning one or a plurality of the discrete data interposed between the two discrete data; and a heterogeneous-data generation section for generating the heterogeneous data.

Abstract: An image recording/reproduction apparatus reads image data from a recording medium storing plural image data to display the read image data on a TV monitor or the like, and selects image data of a same aspect ratio to simultaneously index display plural small images of thus selected image data on the TV monitor. Reduced images of an aspect ratio of 4:3 and 16:9 are formed respectively from image data of an aspect ratio of 4:3 and 16:9, and the number of displayed small image is changed according to the aspect ratio, thereby displaying a larger amount of information within a limited display space in an easily recognizable manner.

Abstract: This invention has as its object to allow information recording by maximally utilizing the size of a storage medium while maintaining compatibility to an electronic device which can handle only a storage medium initialized by the first file system to some extent. To this end, on a storage medium, two storage areas, i.e., a partition A initialized by the FAT16 file system to be accessed by a normal digital still camera, and a partition B initialized by the FAT32 file system that allows a still larger address space, are assured. A main image sensed by a camera unit is stored in the partition B, and a thumbnail image as its derivative information is stored in the partition A. Even when this memory card is attached to the conventional digital still camera, the thumbnail image can be browsed. Also, information indicating correspondence between the main image and corresponding thumbnail image is stored in the partition B as management information.

Abstract: An image reproducing apparatus includes a reproducing unit for reproducing a plurality of reduced images recorded in a memory medium and a selecting unit for selecting one of a first image display mode in which M (M is an integer of 2 or more) reduced images are displayed in a predetermined period and a second image display mode in which N (N>M) reduced images are displayed in the predetermined period.

Abstract: The invention presents a carbon ink with high electric field emission efficiency that can be applied in an inexpensive printing process suitable for mass production, an improved electron-emitting element for an image display device, and a method for manufacturing the electron-emitting element. The invention also presents an image display device with high image quality and efficiency using this electron-emitting element. The image display device includes a patterned conductor on a substrate, and electron-emitting elements made by applying, to predetermined positions of the conductor, a carbon ink made into a paste with an organic binder and a solvent, the ink comprising (i) carbon particles having a 6-membered carbon ring, and (ii) support particles for supporting the carbon particles, and firing the ink.

Abstract: The invention presents a carbon ink with high electric field emission efficiency that can be applied in an inexpensive printing process suitable for mass production, an improved electron-emitting element for an image display device, and a method for manufacturing the electron-emitting element. The invention also presents an image display device with high image quality and efficiency using this electron-emitting element. The image display device includes a patterned conductor on a substrate, and electron-emitting elements made by applying, to predetermined positions of the conductor, a carbon ink made into a paste with an organic binder and a solvent, the ink comprising (i) carbon particles having a 6-membered carbon ring, and (ii) support particles for supporting the carbon particles, and firing the ink.

Abstract: An electron emission element includes a substrate, a cathode electrode formed on the substrate, an anode electrode disposed so as to be opposed to the cathode electrode, an electron emission member disposed on the cathode electrode, a control electrode disposed between the cathode electrode and the anode electrode, and an insulating layer. The electron emission member includes a first member having a hole and a second member filling the hole, wherein the second member is more likely to emit electrons than the first member.

Abstract: The invention presents a carbon ink with high electric field emission efficiency that can be applied in an inexpensive printing process suitable for mass production, an improved electron-emitting element for an image display device, and a method for manufacturing the electron-emitting element. The invention also presents an image display device with high image quality and efficiency using this electron-emitting element. The image display device includes a patterned conductor on a substrate, and electron-emitting elements made by applying, to predetermined positions of the conductor, a carbon ink made into a paste with an organic binder and a solvent, the ink comprising (i) carbon particles having a 6-membered carbon ring, and (ii) support particles for supporting the carbon particles, and firing the ink.

Abstract: An electron emission element of the present invention includes a substrate, a cathode formed on the substrate, an anode opposed to the cathode, an electron emission member disposed on the cathode, and a control electrode disposed between the cathode and the anode. During operation, the electric field intensity immediately above the electron emission member is lower than that between the control electrode and the anode. Alternatively, the spatial average of an electric field intensity between the electron emission member and the control electrode is smaller than that between the control electrode and the anode.

Abstract: In a flat-type image display apparatus, thermal distortion caused by the exposure to high temperature is absorbed, thus obtaining assembly precision and maintaining it during operation. The apparatus comprises a flat type screen and a back electrode opposing the flat type screen. In the space between the flat type screen and the back electrode, linear cathodes and an electrode unit including an electron beam extracting electrode are arranged. Positioning members formed of heat-resistant insulators having guide portions for supporting the linear electrodes are attached to the electrode unit. The linear cathodes are positioned by the guide portions to keep a predetermined positional relationship with electron-beam extracting holes formed in the electron beam extracting electrode.

Abstract: A method of fabricating an electrode unit for use in a flat type image display apparatus, wherein the flat type image display apparatus includes a plurality of flat sheet-shaped electrodes, comprises the steps of mounting in position a first electrode on a second electrode via an insulative bonding material, temporarily fixing the first electrode to the second electrode via a pair of opposing temporary fixing parts formed in each of the first and second electrodes, permanently fixing the first electrode to the second electrode via the insulative bonding material, and removing the pair of temporary fixing parts. The step of temporarily fixing is performed using a temporary fixing spacer disposed between the temporary fixing parts.