The Furukawa Electric Co., Ltd.

Furukawa Automotive Systems Inc.

Takeo Okaniwa

Hiroyuki Kobayashi

Jie Ping Wu

Nobuyuki Kagi

Sadao Matsushima

Toru Yoshikawa

Taishi Kagimoto

Tadataka Wakabishi

Jie Wu

To provide a radar device capable of detecting a position of a target in a direction orthogonal to a viewing angle. In a radar device which detects a target by using a radio wave, the radar device includes: a receiving array antenna (receiving array antenna) where a plurality of receiving antenna elements (first receiving antenna-to eighth receiving antenna-) each having a predetermined length in a first direction are arranged to be disposed in a second direction almost orthogonal to the first direction; a dispersion part (dispersion part) which is disposed in a vicinity of the receiving array antenna, and dispersion properties of the radio wave change with respect to the first direction; and a detection part (control and process part) which detects the position of the target in the first direction based on the radio wave reflected by the dispersion part.

Radar device and detection method of target position of radar device

The present invention provides an optical amplifying apparatus having: a CPUfor processing various signals; a plurality of circuitsfor controlling respective devicesrequired for optical amplification; a first storing unitfor storing a program supplied from a user a gate arrayfor storing various parameters for controlling the devices, the gate array being updated based on the program which is stored in the first storing unitand sent via the CPU; a latch unit, provided between the gate arrayand the circuits, for interrupting a signal path from the gate arrayto the circuitsafter receiving a starting signal of an update from the CPUuntil the update being finished and for controlling the circuitsbased on the parameters stored in the gate arraybefore the signal path is interrupted; and a second storing unitfor, at least during the update, storing the various parameters which are stored in the gate arraybefore the update.

Optical amplifying apparatus

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Tokyo, Japan

Takeo Okaniwa