公开(公告)号：US20170242364A1

公开(公告)日：2017-08-24

申请号：US15427122

申请日：2017-02-08

Applicant: Masashi TOKUDA

Inventor： Masashi TOKUDA

IPC: B41J2/385 ,  H04N1/06 ,  H04N1/29

CPC classification number: G03G15/04036 ,  H04N1/047 ,  H04N1/053 ,  H04N1/06 ,  H04N1/295 ,  H04N2201/0091 ,  H04N2201/047 ,  H04N2201/0471

Abstract: An optical writing device and an image forming apparatus incorporating the optical writing device. The optical writing device includes two or more light sources, a pixel clock generator to measure a scanning speed of one of the two or more light sources and generate a pixel clock of a cycle corrected according to the measured scanning speed, a pulse data generation and output unit to generate pulse width data and shift data for the pixel clock generated by the pixel clock generator to output the generated pulse width data and the generated shift data for each one of the two or more light sources, and a plurality of image pulse generation and output units to generate an image pulse. In the optical writing device, the plurality of image pulse generation and output units are supplied with the pixel clock in common.

公开(公告)号：US20120072629A1

公开(公告)日：2012-03-22

申请号：US13231128

申请日：2011-09-13

Applicant: Masashi TOKUDA

Inventor： Masashi TOKUDA

IPC: G06F13/00

CPC classification number: G06F13/364

Abstract: A communication system includes a master device and slave devices. Each slave device includes a request signal generation part configured to, when data to transmit is generated, generate a request signal indicating a transmission request to a master device; and a transmission part configured to transmit the request signal to the master device. The master device includes a request signal reception part configured to receive the request signals from the slave devices; a selection part acting configured to select one of the slave devices according to the request signals received by the reception part; a transmission part configured to transmit a signal indicating to allow data transmission to the slave device selected by the selection part; and a data reception part configured to receive data from the selected slave device.

Abstract translation: 通信系统包括主设备和从设备。 每个从设备包括一个请求信号产生部分，被配置为当产生要发送的数据时，向主设备生成指示发送请求的请求信号; 以及发送部，被配置为将所述请求信号发送到所述主设备。 主设备包括被配置为从从设备接收请求信号的请求信号接收部分; 选择部件，被配置为根据由所述接收部件接收到的所述请求信号来选择所述从设备中的一个; 发送部，被配置为发送指示允许数据发送到由所述选择部选择的所述从属设备的信号; 以及数据接收部，被配置为从所选择的从属设备接收数据。