Ricoh Company, Ltd.

Sugitaka Oteki

Yuji Takahashi

Hiroyuki Kawamoto

Yasuyuki Nomizu

Hiroaki Fukuda

Yoshiyuki Namizuka

Hideto Miyazaki

Fumio Yoshizawa

Shinya Miyazaki

Takeharu Tone

Rie Ishii

Takako Satoh

Atsuo Hashimoto

Takahiro Watanabe

Toshiyuki Furuta

Hirotoshi Eguchi

Hiroyuki Horiguchi

Toshihiro Tsukagoshi

Shuji Motomura

Satoshi Otsuki

Eiki Aono

Yutaka Ebi

Yoshio Watanabe

Takashi Kitaguchi

Tatsuya Furukawa

A control device including an image enlarging unit that creates enlarged image data of image data by repeatedly using a line in the image data; and a control unit that reads, from a storing unit in which the image data is stored, the image data and outputs, to the image enlarging unit, the image data for each line, the output being performed at time intervals corresponding to the number of times the line is used in accordance with an enlargement ratio of the image data to the enlarged image data.

Control device, image scanning apparatus, image forming apparatus, and method of controlling image scanning apparatus

An image forming apparatus transfers image data stored in a first storing part of a side of a first control part to a side of a writing engine. A second storing part temporarily stores the image data from said first storing part. When data stored in the second storing part reaches a data amount to be previously stored in order that continuous transfer of the image data to the side of the writing engine from the second storing part is available at a predetermined transfer rate, even when a predetermined delay occurs in a transfer operation of the image data from the first storing part to the second storing part, reading of the image data from the second storing part is started for starting image forming operation.

Image forming apparatus, image forming method and computer readable information recording medium

A white reference member is used to obtain white reference data. An image sensor scans the white reference member line by line to obtain a plurality of lines of white reference data. A skipping unit skips the white reference data with a predetermined skipping ratio to generate a skipped white reference data. A dust detecting unit detects a dust between the white reference member and the image sensor based on the skipped white reference data.

Apparatus, method, and computer program product for processing image

An image forming apparatus transfers plot data stored in a first storing part of a side of a controller to a side of a writing engine. A second storing part temporarily stores the plot data from said first storing part. When data stored in the second storing part reaches a data amount to be previously stored in order that continuous transfer of the plot data to the side of the writing engine from the second storing part is available at a predetermined transfer rate, even when a predetermined delay occurs in a transfer operation of the plot data from the first storing part to the second storing part, reading of the plot data from the second storing part is started for starting image forming operation.

A reader apparatus is provided that includes a reading part configured to read the image of an original material; a coding part configured to code the data of the read image; an image memory configured to contain the coded image data; and a controller configured to control the image reading and the image data coding. The coding part includes a part configured to count the number of lines of the image indicating its size in the original material feed direction; a part configured to code the image data with a provisional number of lines in response to the image size in the original material feed direction being unknown; and a part configured to determine the number of lines at the end of the image reading. The controller includes a part configured to replace the provisional number of lines in the coded data with the determined number of lines.

Reader apparatus

The image processing device comprises a first function block section formed of functional blocks which require a supply of power so as to maintain the image processing device in an operating state when the power supply is on, and a second function block section formed of functional blocks which need not be supplied with the power so as to maintain the image processing device in an operating state even when the power supply is on. The supply of power to the second function block section can be stopped when desired, while continuing the supply of power to the first function block section, thereby saving the power.

Image processing device, method for saving power consumption of the image processing device, and a computer product

A programmable image processor capable of realizing a plurality of image formation operations is comprised of an SIMD type data operation processing section, RAMs, memory controllers, and memory switches. The memory controller and the memory switches selectively connect the plurality of RAMs to the data operation processing section thereby changing the memory capacity allotted to each image formation operation among a plurality of image formation operations.

Method and apparatus for image processing, and a computer product

The image processing apparatus comprises an image data control section and a system controller. The image data control section is connected to any one or more of a sensor board unit, an image-memory access control section, an image processor, a video data control section, and a facsimile control unit. The system controller switches, when the image data to be transmitted to the image data control section conflicts with one another, a transmission mode of the image data in conflict with one another. Further, the image-memory access control section and the image processor share jobs of performing image processing on the image data.

Method and apparatus for image processing method, and a computer product

An image processor has a controller unit connected to at least one of functional units such as an image reading unit, detects a source of input of image data according to a network I/F or a parallel bus I/F. An image-memory access control section transmits the image data input from each of the functional units to a memory group and also transmits the image data stored in the memory group to the functional unit. A system controller controls the overall apparatus and also controls the image-memory access control section according to the input source of the image data to determine an order of transmitting the image data to the memory group.

Image processor

The image processor comprises a switch that divides image data into m&#xd7;n pixels, having n lines with m pixels per one line; a group of line memories that store the divided image; a compression device which batch compresses the image data of m&#xd7;n pixels. Further, a command control unit provides control so as to send the (n&#x2212;1) lines of image data among m&#xd7;n pixels of image data to the group of line memories, and the remaining one line of image data directly to the compression device, and to send the m&#xd7;(n&#x2212;1) pixels of image data stored in the line memories to the compression device.

Image processor including a data compression unit having a switch and image processing method thereof

The image processing apparatus is provided with a plural memory controllers, each of which controls a RAM. The memory controllers are connected to an SIMD type arithmetic processing section. A control register is connected to the memory controllers. The control register controls transfer of image data between the RAMs and the SIMD type arithmetic processing section.

Documents are read and the read image data and the information about the size of the document is stored in a memory. A factor of enlargement/reduction is calculated based on the stored size information. An image processorinterpolates the image data based on the calculated enlargement/reduction factor and reproduces the enlarged/reduced document.

Apparatus and method for processing images, and computer product

The image processing apparatus comprises a reading unit which simultaneously reads image data from two, an obverse and a reverse, surfaces of a document, and a compressing unit which compresses received image data. The apparatus further comprises a controlling unit which orchestrates a flow of image data from the reading unit to the compressing unit in such a manner that the image data corresponding to the obverse surface and the reverse surface is input into the compressing unit at different timing.

Image processing apparatus

An image processing apparatus is connected to a plurality of functional units including an image processor which processes images. A process controller provides control over the entire operation. A ROM previously stores information about the content of the image processing. The process controller reads the information stored in the ROM and transfers this information in a host buffer provided with the image processor. The image processor processes the image data based on the information stored in the host buffer.

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Tokyo, Japan

Sugitaka Oteki