[특허]Microelectromechanical timer

[미국특허] Microelectromechanical timer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G04B-019/02
출원번호	US-0121763 (1998-07-23)
발명자 / 주소	Polosky Marc A. Garcia Ernest J. Plummer David W.
출원인 / 주소	Sandia Corporation
대리인 / 주소	Hohimer
인용정보	피인용 횟수 : 48 인용 특허 : 8

초록 ▼

A microminiature timer having an optical readout is disclosed. The timer can be formed by surface micromachining or LIGA processes on a silicon substrate. The timer includes an integral motor (e.g. an electrostatic motor) that can intermittently wind a mainspring to store mechanical energy for driving a train of meshed timing gears at a rate that is regulated by a verge escapement. Each timing gear contains an optical encoder that can be read out with one or more light beams (e.g. from a laser or light-emitting diode) to recover timing information. In the event that electrical power to the timer is temporarily interrupted, the mechanical clock formed by the meshed timing gears and verge escapement can continue to operate, generating accurate timing information that can be read out when the power is restored.

대표청구항 ▼

[ What is claimed is:] [1.]1. A timing apparatus, comprising:(a) a coiled mainspring;(b) a timing gear comprising an optical encoder, and operatively connected to the coiled mainspring for rotation of the timing gear;(c) an escapement mechanism operatively connected to the timing gear for regulating the rotation of the timing gear;(d) a silicon substrare whereon the mainspring, the timer gear and the escapement mechanism are located;(e) an electrostatic motor operatively connected to one end of the mainspring by a ring gear and a reduction gear train to wind the mainspring; and(f) means for reading out the optical encoder to recover timing information from the rotation of the timing gear.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Kohata Shigeru (Tokyo JPX) Hashizume Hiroyuki (Tokyo JPX), Clock movement.
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Besson Rene (Neuchatel CHX) Bron Alphonse (Bassecourt CHX), Electronic watch with means for detecting the movement of a hand through a reference position.
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Allgaier Jrgen (Lauterbach DEX) Ganter Wolfgang (Schramberg DEX) Flaig Hans (Schramberg DEX), Electroptical detector for determining the position of the time display mechanism of a timepiece.
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Guckel Henry (Madison WI) Christenson Todd R. (Madison WI) Skrobis Kenneth (Madison WI), Formation of microstructures using a preformed photoresist sheet.
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Besson Ren (Geneva CHX) Leuenberger Claude-Eric (Geneve-Acacias CHX), Method for detecting the zero position of a hand of a quartz watch with analogue display, a device for performing this m.
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Garcia Ernest J. (Albuquerque NM) Sniegowski Jeffry J. (Albuquerque NM), Microfabricated microengine for use as a mechanical drive and power source in the microdomain and fabrication process.
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Allgaier Jrgen (Lauterbach DEX) Ganter Wolfgang (Schramberg DEX) Maurer Roland (Lauterbach DEX), Position detection and correction mechanism for a timepiece.
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Baba Koji,JPX ; Hashizume Hiroyuki,JPX, Timepiece movement.
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이 특허를 인용한 특허 (48) 인용/피인용 타임라인 분석

Lutz, Markus; Partridge, Aaron; Kronmueller, Silvia, Anchors for microelectromechanical systems having an SOI substrate, and method of fabricating same.
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Lutz,Markus; Partridge,Aaron; Kronmueller,Silvia, Anchors for microelectromechanical systems having an SOI substrate, and method of fabricating same.
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Charbon, Christian, Barrel including an additional elastic means of accumulating energy.
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Appleby,Michael; Fraser,Iain; Atkinson,James E., Devices, methods, and systems involving castings.
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Appleby,Michael; Fraser,Iain; Atkinson,James E., Devices, methods, and systems involving castings.
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Bird, Charles Richard, Digital-to-digital correction unit for analog clock display.
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Partridge, Aaron; Lutz, Markus; Kronmueller, Silvia, Electromechanical system having a controlled atmosphere, and method of fabricating same.
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Partridge, Aaron; Lutz, Markus; Kronmueller, Silvia, Electromechanical system having a controlled atmosphere, and method of fabricating same.
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Partridge, Aaron; Lutz, Markus; Gupta, Pavan, Encapsulated microelectromechanical structure.
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Partridge, Aaron; Lutz, Markus; Gupta, Pavan, Encapsulated microelectromechanical structure.
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Partridge, Aaron; Lutz, Markus; Gupta, Pavan, Encapsulated microelectromechanical structure.
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Cusin, Pierre; Thiebaud, Jean-Philippe, Freely mounted wheel set made of micro-machinable material and method of fabricating the same.
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Flannery,Michael R., Integrated circuit with unified input device, microprocessor and display systems.
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Lutz,Markus; Partridge,Aaron, Method for adjusting the frequency of a MEMS resonator.
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Lutz,Markus; Partridge,Aaron, Method for adjusting the frequency of a MEMS resonator.
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Candler, Robert N., Method of accurately spacing Z-axis electrode.
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Partridge, Aaron; Lutz, Markus; Kronmueller, Silvia, Method of fabricating electromechanical device having a controlled atmosphere.
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Partridge, Aaron; Lutz, Markus; Kronmueller, Silvia, Method of fabricating microelectromechanical systems and devices having trench isolated contacts.
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Appleby, Michael P.; Fraser, Iain; Atkinson, James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby, Michael P.; Fraser, Iain; Atkinson, James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby, Michael P.; Fraser, Iain; Atkinson, James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby,Michael P.; Fraser,Iain; Atkinson,James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Lutz, Markus; Partridge, Aaron; Stark, Brian H., Methods for trapping charge in a microelectromechanical system and microelectromechanical system employing same.
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Lutz, Markus; Partridge, Aaron; Stark, Brian H., Methods for trapping charge in a microelectromechanical system and microelectromechanical system employing same.
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Lutz, Markus; Patridge, Aaron; Stark, Brian H., Methods for trapping charge in a microelectromechanical system and microelectromechanical system employing same.
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Partridge, Aaron; Lutz, Markus; Kronmueller, Silvia, Microelectromechanical device including an encapsulation layer of which a portion is removed to expose a substantially planar surface having a portion that is disposed outside and above a chamber and including a field region on which integrated circuits are formed and methods for fabricating same.
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Partridge, Aaron; Lutz, Markus; Kronmueller, Silvia, Microelectromechanical device including an encapsulation layer of which a portion is removed to expose a substantially planar surface having a portion that is disposed outside and above a chamber and including a field region on which integrated circuits are formed, and methods for fabricating same.
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Partridge, Aaron; Lutz, Markus; Kronmueller, Silvia, Microelectromechanical device including an encapsulation layer of which a portion is removed to expose a substantially planar surface having a portion that is disposed outside and above a chamber and including a field region on which integrated circuits are formed, and methods for fabricating same.
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Partridge,Aaron; Lutz,Markus; Kronmueller,Silvia, Microelectromechanical systems and devices having thin film encapsulated mechanical structures.
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Stark, Brian H.; Lutz, Markus; Partridge, Aaron, Microelectromechanical systems having stored charge and methods for fabricating and using same.
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Stark,Brian H.; Lutz,Markus; Partridge,Aaron, Microelectromechanical systems having stored charge and methods for fabricating and using same.
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Partridge,Aaron; Lutz,Markus; Kronmueller,Silvia, Microelectromechanical systems having trench isolated contacts, and methods for fabricating same.
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Partridge,Aaron; Lutz,Markus; Kronmueller,Silvia, Microelectromechanical systems, and devices having thin film encapsulated mechanical structures.
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Lehmann, Mirko, Microsystem.
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Marmy, Philippe; Krähenbühl, Benjamin; Conus, Thierry, Mobile micromechanical element with shock controlled rotation.
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Hartzell,John W., Monolithic stacked/layered crystal-structure-processed mechanical, and combined mechanical and electrical, devices and methods and systems for making.
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Yiu, Chih Hao, Position detecting and correcting device for timepiece.
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Liu,Tsai Te, Radio controlled clock movement control system.
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Candler, Robert N.; Yama, Gary, Substrate with multiple encapsulated pressures.
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Appleby, Michael P.; Randolph, William T.; Klinger, Jill E., Systems for large area micro mechanical systems.
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Appleby, Michael P.; Fraser, Iain; Paulus, John, Systems, devices, and/or methods for manufacturing castings.
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Appleby, Michael; Fraser, Iain; Paulus, John, Systems, devices, and/or methods for manufacturing castings.
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Appleby, Michael; Paulus, John; Fraser, Iain; Klinger, Jill; Heneveld, Benjamin, Systems, devices, and/or methods for producing holes.
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Lutz,Markus; Partridge,Aaron, Temperature controlled MEMS resonator and method for controlling resonator frequency.
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Lutz,Markus; Partridge,Aaron, Temperature controlled MEMS resonator and method for controlling resonator frequency.
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Lutz,Markus; Partridge,Aaron, Temperature controlled MEMS resonator and method for controlling resonator frequency.
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Partridge, Aaron; Lutz, Markus; Gupta, Pavan, Wafer encapsulated microelectromechanical structure.
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Partridge, Aaron; Lutz, Markus; Gupta, Pavan, Wafer encapsulated microelectromechanical structure and method of manufacturing same.
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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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[미국특허] Microelectromechanical timer 원문보기