Canon Kabushiki Kaisha

Shunichi Kaizu

Makoto Fujiwara

Koichi Morishita

Daisuke Shiraishi

Toshiaki Minami

Toshihiko Ichise

Yasunari Nagamatsu

Koji Moriya

Hisashi Ishikawa

Toshiaki Sato

Hiroyuki Nakamura

Kei Fujita

Keiji Ishizuka

Seiji Kamei

Shunichi Morita

An image forming apparatus includes a print head provided with a plurality of discharge ports, a scanning unit configured to cause the print head to scan the same printing region on a recording medium a number of times, a generation unit configured to generate image forming data for each of scans, based on image information that has been input, and an image forming unit configured to perform image forming by discharging inks from the discharge ports on the recording medium according to the image forming data generated by the generation unit. The generation unit includes a division unit configured to divide the image information, while controlling division coefficients, using each of the discharge ports as the reference based on the division coefficients, and a quantization unit configured to quantize each of image information divided by the division unit.

Image forming apparatus and image forming method

A bus arbitration apparatus according to this invention appropriately arbitrates bus rights of use between a plurality of masters and a plurality of slaves so as to efficiently perform requested data transfer. An arbiter Areceives data transfer requests with respect to a slave Agenerated by masters Aand B. The arbiter Acooperates with an arbiter B, and arbitrates a contention of the data transfer requests with respect to the slave Agenerated by the masters Aand B

Bus arbitration apparatus and method

The remaining time period until the deadline of transfer by a device connected to a bus is measured, the remaining data size to be transferred by the device is detected, and the priority level of the device is set based on the remaining time period and the remaining data size.

Method of setting priority of devices connected to bus, and apparatus having a plurality of devices and arbiter

In an image processing apparatus, connected via an external bus to at least an external controller and an external storage device, input image data is processed by an image processorthen processed image dataand image dataare simultaneously stored into respective areas of an image buffer. The image datais read from the image bufferwhile it is stored in the image buffer, and the read image datais processed by an image processor. The image data is outputted through an image output controllerand a bus I/F unitto an external storage devicevia an external bus. At this time, the result of processing on frame data by the image processor is preserved in correspondence with output of the image datafor one frame, and image processing and output processing on the image datastored in the image buffer, for one frame, is started.

Parallel processing for a first and second image data from one input image

A semiconductor device has transistors, each transistor having a first conduction type of a first semiconductor region including a first main electrode region, a second conduction type of second semiconductor region including a channel region which is provided in the first semiconductor region, a second main electrode region provided in the second semiconductor region, a gate electrode on the channel region extending through a gate insulating film between the first and second main electrode regions. A portion of the first main electrode region which contacts the channel region is a high-resistance region. The semiconductor device also has buried-type element isolation regions which prevent the occurrence of latch up and bird's beaks in the device.

Semiconductor device for driving heat generator

A driver circuit comprises a current mirror circuit including an output transistor, a load connected to a main electrode of the output transistor, and current supplying device for supplying a current to a control electrode of the output transistor. The output transistor controls a current flowing through the load.

Growing community of inventors

Kawasaki, Japan

Shunichi Kaizu