Sharp Kabushiki Kaisha Corporation

Daisuke Usui

Hideyoshi Yoshimura

A control apparatus includes a control signal generation unit which generates a control signal Sct, a transmission unit, and a communication switch. The transmission unit transmits a transmit signal St including the control signal Sct to a control target via wireless communication. The communication switch has a first communication disabled state and a communication enabled state, makes a transition from the first communication disabled state to the communication enabled state by a maneuver from outside, and returns to the first communication disabled state when released from the maneuver. Also, the communication switch enables wireless communication by the transmission unit during a period of being kept in the communication enabled state and disables wireless communication by the transmission unit during a period of being kept in the first communication disabled state.

Control apparatus, control system, control method, and storage medium

An available image area is recognized from information, including a read start position and a read end position of a document, a scaling for performing image processing, a processing object position, or the like. Subsequently, the number of chromatic pixels of one line is counted to output it to a memory, and when it is summed up to an end line of the available image area, a difference between a count number Nin one previous line of the available image area and a count number Nin the end line of the available image area is calculated to thereby compare the difference with a predetermined threshold value. When the difference is larger than the threshold, it is determined to be a chromatic image, whereas when the difference is smaller than the threshold, it is determined to be an achromatic image.

Image processing method, image processing apparatus, image forming apparatus, and recording medium

When inputted pixels from an input DMA unit, a packing unit outputs data package. One data package consists of &#x3b1; inputted pixels. A memory control unit writes, on a write line memory at a write interval, the data package that is outputted by the packing unit. The write interval is &#x3b1; times longer than an input interval at which the pixels are inputted into the packing unit. During the writing process, the memory control unit reads out another data package from a read line memory at a read interval that is the same as the input interval. In addition, the memory control unit treats the write line memory as the read line memory, after completing the writing process. Alternatively, the memory control unit treats the read line memory as the write line memory, after completing the reading process.

Pixel input-output method, image compressing method, pixel input-output apparatus, image compressing apparatus, image processing apparatus, image forming apparatus, computer program and recording medium

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Tenri, Japan

Daisuke Usui