Fuji Xerox Co., Ltd.

Toshiaki Yoshinari

Kazuhiro Suzuki

Taro Yokose

Ken Umezawa

Kentaro Ikeda

Bo Liu

Takuya Mizuguchi

Toshio Kamada

Katsuyuki Asai

Kazuki Nagashima

Takahiro Saito

Yutaka Koshi

Koh Kamizawa

Masahiro Maeda

Koji Nishiyama

Masayuki Kurahashi

Kazuya Yamada

A virtual computer system includes an external event acquisition controller, an external event storing unit, and a snap shot creating unit. The external event acquisition controller performs control for acquiring an event regarding an external device provided outside a virtual computer which mounts a guest operating system in which an application program is installed. The external event storing unit stores the external event acquired by the external event acquisition controller. The snap shot creating unit creates a snap shot of the guest operating system including the application program after the external event is stored in the external event storing unit.

Virtual computer system, method, and non-transitory computer readable medium

A virtual computer system includes a first saving unit that saves at least one or more snapshots each having recorded therein a state of a virtual machine, the state including an application program installed on the virtual machine, the snapshot being saved as a reference snapshot; an applying unit that applies the reference snapshot to the virtual machine when an execution request for the application program is received; and a second saving unit that saves a state of the virtual machine that executes the application program, the state being saved as a snapshot.

Virtual computer system, printer control system, virtual computation method, printer control method, and storage media

An image processing apparatus includes a detection unit and a determination unit. The detection unit detects an error by comparing image data related to a print job with read image data obtained as a result of reading a print output related to the print job. The determination unit compares read image data related to a post-error print output, which is a continuously-printed print output related to the print job for a page subsequent to a page in which the error is detected, with the image data when the error is detected by the detection unit, so as to determine a process for recovering the print job by using the post-error print output.

Image processing apparatus, non-transitory computer readable medium, and image processing method for determining whether a print job is recoverable

An image signal encoding apparatus reads an image from an original and converts the image into color data values including lightness and chromaticity components. The data values are stored and divided into pixel blocks with data values of lightness components and pixel blocks with data values of chromaticity components. Average lightness component data values are computed for pixel blocks of lightness components and average chromaticity data values are computed for pixel blocks of chromaticity components. A region determination is made whether the pixel blocks correspond to color, monochrome or background region in the original based on the average pixel block data values of lightness components and chromaticity components. A switch outputs the lightness pixel block data values during the region determination, and outputs the lightness and chromaticity pixel block data values after the region determination. The lightness pixel block data values are adaptively bi-level connected based on the result of the region determination. A bi-level image encoder encodes lightness pixel block data values converted by adaptive bi-level conversion and the result of the region determination is stored as region information. A color image encoder encodes the chromaticity pixel block data values consisting of man pixels determined to correspond to the color region based on the stored region information after the region determination process on the whole original is completed and a transmitter transmits at least one of the set of data values encoded by the bi-level image encoder and the set of data values encoded by the color image encoder.

Image signal encoding apparatus

An image signal encoding apparatus reads an image from an original and converts the image into color data values including lightness and chromaticity components. The data values are stored and divided into pixel blocks with data values of lightness components and pixel blocks with data values of chromaticity components. Average lightness component data values are computed for pixel blocks of lightness components and average chromaticity data values are computed for pixel blocks of chromaticity components. A region determination is made whether the pixel blocks correspond to a color, monochrome or background region in the original based on the average pixel block data values of lightness components and chromaticity components. A switch outputs the lightness pixel block data values during the region determination, and outputs the lightness and chromaticity pixel block data values after the region determination. The lightness pixel block data values are adaptively bi-level connected based on the result of the region determination. A bi-level image encoder encodes lightness pixel block data values converted by adaptive bi-level conversion and the result of the region determination is stored as region information. A color image encoder encodes the chromaticity pixel block data values consisting of m.times.n pixels determined to correspond to the color region based on the stored region information after the region determination process on the whole original is completed and a transmitter transmits at least one of the set of data values encoded by the bi-level image encoder and the set of data values encoded by the color image encoder.

An image signal coding device capable of attaining a high-speed coding operation without increasing a circuit scale. The image signal coding device includes a DCT section for performing two-dimensional orthogonal transform to each of plural pixel blocks obtained by dividing an image signal to generate a transform coefficient, a linear quantization section for linearly quantizing the transform coefficient by using given quantization characteristics to generate a quantized coefficient, and a variable length coding section for performing variable length coding to the quantized coefficient to generate code data. The image signal coding device further includes an effective region holding section for holding region information including a range of the transform coefficient to be linearly quantized by the linear quantization section and a range of the quantized coefficient to be coded by the variable length coding section.

Image signal coding device

An image coding and decoding apparatus to improve processing speed in searching for marker information such as control information when decoding, reduce the capacity of memory means for expanding compressed data and reduce the size of the unit of coding and decoding processing is disclosed, wherein divided coded data blocks CodeBlock 1-1, 1-2 and so forth are produced by dividing coded data obtained by coding image data for an image of a predetermined size into a predetermined size and control information values CodeSize1-1, 1-2 and so forth showing coded data block size are appended to each divided coded data block as control information.

Image coding and decoding apparatus with coded data size information

A moving picture search support device allows a particular scene or frame to be searched quickly and surely from a moving file that has been accessed in the past based on weighing that is derived from an evaluation made by the degree of importance. The device of the invention, which is used to reproduce a moving picture, includes an operation history storage unit and a history calculating unit. The operation history storage unit stores history data that has been given a predetermined weight corresponding to an operation mode selected for processing a moving picture file by a user. The history calculating unit determines, in response to a search request made by the user for desired moving picture data within the moving picture file, a priority level at which the desired moving picture data is displayed in accordance with the predetermined weight based on the history data stored in the operation history storage unit.

Moving picture search support device

A network system in which a plurality of information devices connected to each other through a network are provided so that a resource is released to the information devices through the network, the system comprising: a storage device for storing an access list indicating an access right for every information device of release destination; and a management device for releasing a resource within a range in accordance with a right given to every information device on the basis of the access list stored in the storage device.

Growing community of inventors

Kanagawa, Japan

Toshiaki Yoshinari