Ge Precision Healthcare LLC

Jiangnan University

Aceinna Transducer Systems Co., Ltd.

Xin Wang

Bing Li

Qiang Yao

Lu Jin

Bo Dan

Hongyu Zhao

Dalai Li

Chunyan Qi

Linbo Xie

Kejian Shi

Kuo Wang

Dinghui Wu

Hongfei Cai

Zhengwei Huang

Yegui Xiao

Yanli Chen

Chao Yan

Yaping Ma

A scanning assembly, including: a housing, wherein a lower portion of the housing comprises an opening, and the opening can be closed by tissue to be scanned; a pressure difference generating device, disposed on the housing and used to generate an air pressure difference between the interior and the exterior of the housing, the air pressure difference providing a first pressure for the tissue to be scanned, the weight of the scanning assembly providing a second pressure for the tissue to be scanned, the tissue to be scanned being compressed under the action of a compressive force, and the compressive force comprising the first pressure and the second pressure; and an ultrasonic transducer, disposed in the housing and used to perform ultrasound scanning on the compressed tissue to be scanned.

Scanning assembly and ultrasound imaging device

A double pinned magnetoresistance (MR) multilayer film, a full bridge MR sensor using the double pinned MR multilayer film and a method for manufacturing the full bridge MR sensor are provided in the present invention. The double pinned MR multilayer film comprises: a buffer layer, a first antiferromagnetic layer, a first ferromagnetic layer, a first interlayer, a ferromagnetic reference layer, a spacer layer, a ferromagnetic free layer, a second interlayer, a second ferromagnetic layer, a second antiferromagnetic layer and a cover layer that are stacked in sequence. The first antiferromagnetic layer applies a first exchange bias to the first ferromagnetic layer, and the first ferromagnetic layer applies a first artificial antiferromagnetic coupling to the ferromagnetic reference layer through the first interlayer. The second antiferromagnetic layer applies a second exchange bias to the second ferromagnetic layer, and the second ferromagnetic layer applies a second artificial antiferromagnetic coupling to the ferromagnetic free layer through the second interlayer. The full bridge MR sensor can not only realize the full bridge function in a single chip, but also has small zero point, simple annealing process and low cost through two global annealing.

Double pinned MR multilayer film, full bridge MR sensor and manufacturing method therefor

The present invention relates to an ultrasonic imaging system and a respective method. The ultrasonic imaging system includes a scanning assembly including an ultrasonic transducer, an adjustable arm, one end of the adjustable arm connected to the scanning assembly, and a counterweight, connected to the other end of the adjustable arm by means of a cable. The ultrasonic imaging system includes a transmission assembly comprising a drive unit and a transmission unit, the drive unit being capable of acting on the counterweight by means of the transmission unit so as to adjust a pressure applied by the scanning assembly to the tissue to be scanned and a control unit, sending a drive signal to the drive unit, and acquiring, on the basis of the drive signal, the pressure applied by the scanning assembly to the tissue to be scanned.

Ultrasonic imaging system and method

The present disclosure presents a feedback active noise control system and strategy with online secondary-path modeling, and belongs to the technical field of active noise control. The linear prediction subsystem takes the residual noise as its input and separates the remaining sinusoidal noise from the broadband noise. The remaining sinusoidal noise is used effectively not only to update the controller but also to scale the auxiliary noise, while the broadband noise serves as a desired input of online secondary-path modeling subsystem. In this way, the coupling between the controller and the online secondary-path modeling subsystem is significantly mitigated, leading to both faster convergence and improved noise reduction performance. A practical scheme for refreshing the entire system is also developed to enhance its robustness against even abrupt changes with the secondary path or the primary noise. The present disclosure enhances the applicability of feedback active noise control in practical applications.

Feedback active noise control system and strategy with online secondary-path modeling

Growing community of inventors

Wuxi, China

Xin Wang