公开(公告)号：US20220326290A1

公开(公告)日：2022-10-13

申请号：US17701998

申请日：2022-03-23

Applicant: ADVANTEST CORPORATION

Inventor： Koji ASAMI ,  Shin MASUDA

IPC: G01R29/10 ,  G01R29/08

Abstract: A test apparatus inspects an antenna element or a device including the antenna element as a DUT by OTA. A front-end unit includes a plurality of electric field detection elements provided to face a plurality of points on a radiation surface of the antenna element of the DUT. The plurality of electric field detection elements can simultaneously detect the electric fields formed at the corresponding points by the DUT, respectively. A tester body receives a plurality of detection signals from the front-end unit and evaluates the DUT.

公开(公告)号：US20150016817A1

公开(公告)日：2015-01-15

申请号：US14328715

申请日：2014-07-11

Applicant: ADVANTEST CORPORATION

Inventor： Hideo HARA ,  Shin MASUDA

IPC: H04B10/073

CPC classification number: H04B10/0731 ,  H04B10/801

Abstract: A test apparatus that easily tests a device under test having an optical interface. Provided is a test method, a test apparatus, and a device interface apparatus on which is mounted a device under test having an optical interface, the device interface apparatus comprising a device mounting section on which the device under test is mounted; an optical connector that is connected to the optical interface of the device under test; and an optical signal detecting section that detects an optical signal output from at least one of the optical interface and the optical connector, before the optical interface of the device under test mounted on the device mounting section is connected to the optical connector.

Abstract translation: 一种能够容易地测试具有光学接口的被测器件的测试装置。 提供了一种测试方法，测试设备和设备接口设备，其上安装有具有光学接口的被测设备，该设备接口设备包括安装被测设备的设备安装部分; 连接到被测设备的光接口的光连接器; 以及光信号检测部，其在被安装在装置安装部上的被测设备的光接口连接到光连接器之前，检测从至少一个光接口和光连接器输出的光信号。

公开(公告)号：US20210294132A1

公开(公告)日：2021-09-23

申请号：US17265941

申请日：2018-08-30

Applicant: ADVANTEST Corporation

Inventor： Hideo HARA ,  Shunsuke ABE ,  Shin MASUDA

IPC: G02F1/065 ,  G02F1/00 ,  G02F1/035 ,  G02B6/122

Abstract: According to the present invention, an optical device includes: a first electro-optical member and a second electro-optical member. The first electro-optical member has two convex portions spaced from each other by a recessed portion and a connecting portion arranged under the recessed portion to connect the two convex portions, the first electro-optical member exhibiting an electro-optical effect. The second electro-optical member has a recessed portion member arranged within the recessed portion, the second electro-optical member exhibiting an electro-optical effect. The permittivity of the first electro-optical member is higher than the permittivity of the second electro-optical member. The refractive index of the first electro-optical member is higher than the refractive index of the second electro-optical member. During application of an electric field, light to be transmitted is applied to the recessed portion member.

公开(公告)号：US20200310220A1

公开(公告)日：2020-10-01

申请号：US16793561

申请日：2020-02-18

Applicant: ADVANTEST Corporation

Inventor： Takao SAKURAI ,  Shin MASUDA ,  Tomoki JOICHI ,  Masao FUJINO

IPC: G02F1/335 ,  G02F1/355

Abstract: A laser beam output apparatus includes a pulsed laser output section, an optical path determining section, a wavelength changing section, and a multiplexer. The pulsed laser output section outputs a laser beam having a predetermined wavelength as first pulses. The optical path determining section receives the first pulses and determines one among a plurality of optical paths for each of the first pulses for output. The wavelength changing section receives light beams traveling, respectively, through the plurality of optical paths and changes the light beams to have their respective different wavelengths for output. The multiplexer multiplexes outputs from the wavelength changing section.

公开(公告)号：US20150253388A1

公开(公告)日：2015-09-10

申请号：US14633148

申请日：2015-02-27

Applicant: ADVANTEST CORPORATION

Inventor： Shin MASUDA ,  Hideo HARA ,  Tsuyoshi ATAKA

IPC: G01R31/319 ,  G01R31/3163 ,  G01R31/317

CPC classification number: G01R31/31917 ,  G01R31/3163 ,  G01R31/31713 ,  G01R31/31901 ,  G01R31/3191

Abstract: Provided is a test apparatus including an optical test signal generating section that generates an optical test signal; an optical signal supplying section that supplies the optical test signal to a device under test that is a testing target among a plurality of the devices under test; a first optical switch section that selects, from among optical signals output by the plurality of devices under test, the optical signal output by the device under test that is the testing target; and an optical signal receiving section that receives the selected optical signal.

Abstract translation: 提供了一种测试装置，其包括产生光学测试信号的光学测试信号产生部分; 光信号提供部，将光测试信号供给到被测设备，被测设备是被测设备的多个测试对象; 第一光开关部，从被测试的多个被测设备输出的光信号中，选择被作为测试目标的被测器件输出的光信号; 以及光信号接收部，其接收所选择的光信号。