[특허]Positioning device reporting X, Y and yaw motion

Positioning device reporting X, Y and yaw motion 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G09G-005/00
출원번호	US-0275089 (1994-07-14)
발명자 / 주소	Parks Terry J. (Round Rock TX)
출원인 / 주소	Dell USA, L.P. (Austin TX 02)
인용정보	피인용 횟수 : 67 인용 특허 : 0

초록 ▼

A pointing device or mouse which monitors motion in both the X and Y directions as well as in the yaw or rotational direction. The pointing device hence monitors three degrees of freedom and thus provides a more accurate indication of the position of the device. One embodiment comprises a pointing device which includes two motion indicators or mouse balls integrated into the bottom of the device which detect change of motion or position in one X and two Y directions. Separate Y measurements are made for each of the respective balls because yaw or rotation of the device causes the line movements for the two balls to differ. The two balls are preferably a distance L apart, and the rotation and translation of the respective balls are measured by the change in position with reference to a center point between the two balls. The two mouse balls generate signals indicating positive or negative motion in the respective directions. A method is included which interprets these signals and generates translation and rotation vectors for use by position and orientation tracking software. This method includes a small filter which groups together pseudo-simultaneous signals in the two Y directions that differ only by a small period of time.

대표청구항 ▼

A pointing device, comprising: a first motion indicator which detects changes in motion of said pointing device in a first Y direction and generates a first Y signal indicative thereof, a second motion indicator which detects changes in motion of said pointing device in a second Y direction and a first X direction perpendicular to said second Y direction and generates a second Y signal and an X signal indicative thereof; and a controller coupled to said first and second motion indicators which receives said signals from said first and second motion indicators and determines whether at least one of said first and second Y signals has been received, wherein said controller includes: a timer comprised in said controller which begins counting a predetermined time when said controller determines that at least one of said first and second Y signals has been received; wherein said controller uses said timer to determine if the other of said first and second Y signals has been received within said predetermined time after said at least one of said first and second Y signals was received, and uses one or more of said first and second Y signals to generate yaw information depending on whether said first and second Y signals were generated within said predetermined time of each other.

이 특허를 인용한 특허 (67)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Positioning device reporting X, Y and yaw motion 원문보기

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Positioning device reporting X, Y and yaw motion 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (67)

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