로그인시 본인확인과정이 필요할 수 있습니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기
| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0139139 (1993-10-21) |
| 발명자 / 주소 |
|
| 인용정보 | 피인용 횟수 : 300 인용 특허 : 0 |
In a coordinate system defined by a coordinate space digitizer, the location of an implanted symmetric object may automatically be determined based on differences between the characteristic acoustic impedances of at least a portion of an implanted object and one or more materials surrounding that ob
In a coordinate system defined by a coordinate space digitizer, the location of an implanted symmetric object may automatically be determined based on differences between the characteristic acoustic impedances of at least a portion of an implanted object and one or more materials surrounding that object. An A-mode ultrasound transducer may be attached to a coordinate space digitizer or pointing device such that an attached computer tracks the position and orientation of the ultrasound transducer. The reflected radio-frequency (rf) ultrasound signals may automatically be analyzed along with the transducer position and orientation corresponding to each received rf signal to detect the position of the implanted object. The time delay between received ultrasound echoes is used to compute the depth of the object from the transducer. This allows for an accurate determination of the three-dimensional coordinates of the implanted object.
A method for automatically locating a position of a first object in a physical space, comprising steps of: attaching a transducer to a coordinate space digitizer having a defined coordinate system in said physical space; pulsing said transducer while translating it along a surface of interest near s
A method for automatically locating a position of a first object in a physical space, comprising steps of: attaching a transducer to a coordinate space digitizer having a defined coordinate system in said physical space; pulsing said transducer while translating it along a surface of interest near said first object; receiving echoes from said pulsed transducer arising from a difference in an acoustic impedance of a first portion of the first object and an acoustic impedance of a material located near said first portion of the first object; and determining automatically a coordinate position in said defined coordinate system of said first object in response to said received echoes and a position and orientation of said transducer.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.