Omron Corporation

Megumu Asano

Toshiyuki Kojima

Hirohito Mizumoto

Yoshimi Niwa

Satoshi Yamawaki

Hajime Ujiie

Maki Nishimura

A main control section () of a slave device () include a slave controller (), a processor (), and a watchdog circuit () which are configured as a one-chip integrated circuit. In a case where the watchdog circuit () has detected that a malfunction has occurred in an operation of the main control section (), the watchdog circuit () resets the processor () while not stopping an operation of the slave controller ().

Control device, and slave device control method

A slave device is realized that establishes a link with a master device or another slave device such that a large link delay hardly occurs. The slave device includes a PHY unit, a COM unit, and a MPU unit. The PHY unit starts an operation according to the specification of the AutoMDI/MDI-X function when the slave device is turned on or the PHY unit itself is reset. After a predetermined time period has elapsed, the MPU unit resets the COM unit, and the PHY unit is reset in response to the reset of the COM unit.

Communication device and link establishment method

On a circuit board configured to transmit a signal, a pulse transformer is provided on a path used for transmitting the signal of the circuit board. A shield member is provided on the circuit board to prevent noise, which is generated due to noise current flowing in a noise line pattern, from entering the pulse transformer. The shield member covers a part of a surface of at least one pulse transformer, the part intersecting concentric circles (which represent a magnetic field generated by the noise current) whose central axis extends along the direction in which the noise current flows.

Growing community of inventors

Moriyama, Japan

Megumu Asano