Ricoh Company, Ltd.

Mitsuru Suzuki

Junichi Ikeda

Satoru Numakura

Hiroyuki Takahashi

Tetsuya Satoh

Koji Takeo

Hideaki Yamamoto

Noriyuki Terao

Kohki Sasaki

Hiroyuki Abe

A communication apparatus for carrying out communications to and from an external apparatus that includes a first interconnecting unit and a first non-transparent port and effects an interconnection for communications via the first non-transparent port is provided. The communication apparatus includes a second interconnecting unit that includes a second non-transparent port communicably connected to the first non-transparent port. The second interconnecting unit effects an interconnection for communications via the second non-transparent port. The second interconnecting unit performs, when the communication apparatus carries out communications to and from the external apparatus, address translation between an address for use by the communication apparatus and an address for use by the second non-transparent port.

Communication apparatus, communication system and adapter

A communication device includes a signal correcting unit that performs signal correction on an electric signal indicating information to be transmitted to reduce signal deterioration occurring in transmission of the electric signal; a conversion unit that converts the electric signal subjected to the signal correction into a digital signal on which information indicating the signal correction performed by the signal correcting unit is superimposed; and a light-emitting element that emits light in accordance with the digital signal converted by the conversion unit.

Communication device and communication method

A memory control apparatus that controls writing and reading of data to/from a memory. The memory control apparatus includes: a sequence control unit that receives a packet sequence including a write packet including a write request of data and a read packet including a read request of the data, and changes an arrangement of the write packet and the read packet included in the packet sequence so that a first predetermined number of write packets are arranged successively and a second predetermined number of read packets are arranged successively; and a command output unit that receives the packet sequence from the sequence control unit, and outputs a write command according to the write packet and an a read command according to the read packet to the memory, in accordance with an order of arrangement of the write packet and the read packet.

Memory control apparatus, information processing apparatus, and memory control method

An image forming apparatus receives raster image data transferred from an external device and forms an image on the basis of the received raster image data. The apparatus includes a processor that controls a transfer of the raster image data from the external device, a first memory connected to the processor through a first bus is used as a working area of the processor, a second memory that stores the raster image data, a memory control unit connected to the second memory through a second bus controls an operation of writing and reading the raster image data in and from the second memory, a printer engine that forms an image on the basis of the raster image data, and an engine control unit that reads the raster image data from the second memory through the memory control unit and supplies the printer engine with the read raster image data.

Growing community of inventors

Miyagi, Japan

Mitsuru Suzuki