IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0222787
(1998-12-30)
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발명자
/ 주소 |
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출원인 / 주소 |
- Enerwise Global Technologies, Inc.
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대리인 / 주소 |
Donner, Irah H.Hale and Dorr LLP
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인용정보 |
피인용 횟수 :
244 인용 특허 :
6 |
초록
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A method and computer architecture monitoring resource usage via a global computer network. The computer architecture may include a resource-metering data recorder/translator unit having a global computer network node and, in operation, recording resource usage measured by and associated resource me
A method and computer architecture monitoring resource usage via a global computer network. The computer architecture may include a resource-metering data recorder/translator unit having a global computer network node and, in operation, recording resource usage measured by and associated resource meter. The computer architecture further includes a database and at least one global computer network server, in operation, storing resource usage data recorded by the data recorder/translator unit in the database, receiving a resource usage data query from a user, calling the database for resource usage data relevant to the user, and presenting resource management information based on the relevant resource usage data via a global computer network site to the user. The computer architecture may also include a resource-metering data recorder, in operation, recording resource usage data measured by an associated resource meter, and also includes a recorder translator, in operation calling the data recorder, and transferring the resource usage data from the data recorder to the database.
대표청구항
▼
A method and computer architecture monitoring resource usage via a global computer network. The computer architecture may include a resource-metering data recorder/translator unit having a global computer network node and, in operation, recording resource usage measured by and associated resource me
A method and computer architecture monitoring resource usage via a global computer network. The computer architecture may include a resource-metering data recorder/translator unit having a global computer network node and, in operation, recording resource usage measured by and associated resource meter. The computer architecture further includes a database and at least one global computer network server, in operation, storing resource usage data recorded by the data recorder/translator unit in the database, receiving a resource usage data query from a user, calling the database for resource usage data relevant to the user, and presenting resource management information based on the relevant resource usage data via a global computer network site to the user. The computer architecture may also include a resource-metering data recorder, in operation, recording resource usage data measured by an associated resource meter, and also includes a recorder translator, in operation calling the data recorder, and transferring the resource usage data from the data recorder to the database. g conductor in said basic magnetic field; and said at least one current-carrying conductor following a path for simultaneously generating a predetermined target magnetic field and for reducing at least one of said mechanical oscillations which is a mechanical oscillation which contributes to said noise. 2. A magnetic resonance apparatus as claimed in claim 1 wherein said coil system has a natural resonant mode which is one of said mechanical oscillations, and wherein said at least one current-carrying conductor has a path for simultaneously generating said predetermined target magnetic field and for reducing excitation of said natural resonant mode. 3. A magnetic resonance apparatus as claimed in claim 1 wherein said coil system is a hollow-cylindrical coil system, and wherein said at least current-carrying conductor has a path for simultaneously generating said predetermined target magnetic field and for reducing one of said mechanical oscillations having a component directed radially relative to a principal axis of said hollow-cylindrical coil system. 4. A method for designing a gradient coil system for a magnetic resonance apparatus, said magnetic resonance apparatus having a basic field magnet system for generating a basic magnetic field and said coil system having a coil arrangement with a layer in which a current-carrying conductor, following a path in said layer, is disposed, and wherein said coil system is subject to mechanical oscillations resulting from Lorentz forces acting on said current-carrying conductor in said basic magnetic field, said method comprising the steps of: determining said path of said current-carrying conductor in said layer for generating a predetermined target magnetic field using a calculation procedure which encompasses linear secondary conditions; identifying at least one of said mechanical oscillations which is a noise-causing mechanical oscillation and representing said noise-causing mechanical oscillation as one of said linear secondary conditions which is encompassed in said calculation procedure; and determining said path of said current-carrying conductor in said layer using said calculation procedure to simultaneously generate said predetermined target magnetic field and to reduce said noise-causing mechanical oscillation. 5. A method as claimed in claim 4 comprising employing a quadratic optimization procedure as said calculation procedure, containing a quadratic target function. 6. A method as claimed in claim 5 wherein said calculation procedure comprises the steps of: dividing said layer of said coil arrangement into a network of meshes; occupying each mesh in said network with an elementary coil formed by a closed winding carrying a mesh current; identifying a magnetic field contribution to said target magnetic field generated by each mesh current, said quadratic target function comprising said mesh currents in said network, the respective magnetic field contributions of said mesh currents, and said target magnetic field; minimizing said quadratic target function relative to said target magnetic field; and determining said path of said current-carrying conductor dependent on the mesh currents which minimize said quadratic target function. 7. A method as claimed in claim 6 wherein said noise-causing mechanical oscillation is a natural resonant mode of said coil system, and wherein said method further comprises the steps of: for each mesh, identifying a location dependency relative to one of said meshes subjected to said natural resonant mode; for each mesh, identifying a Lorentz force acting on one of said meshes; for each mesh, forming a scalar product of said location dependency and said Lorentz force; summing the respective scalar products for all of said meshes to form a summation result; and forming said one of said linear secondary conditions by setting said summation result to be less than a predetermined value. 8. A method as claimed in claim 7 w herein the step of determining the Lorentz force for each of said meshes comprises identifying mesh currents of neighboring meshes and values of said basic magnetic field for each of said neighboring meshes, and calculating said Lorentz force from said mesh currents of said neighboring meshes and said values of said basic magnetic field in said neighboring meshes. 9. A method as claimed in claim 7 wherein the step of determining the Lorentz force in each of said meshes includes identifying an edge length of each of said meshes, and employing said edge length for calculating said Lorentz force. nc.'s Web Page at http://www.rfm.com, pp. 1-8. Data Sheets, Ash Transceiver Designer's Guide, Obtained from RF Monolithics, Inc.'s Web Page at http://www.rfm.com, pp. 1-53. ; 1996-185074, JP shutting down an application program associated with the wireless communication device attached to the electronic device as part of the power down procedure; powering down the wireless communication device after shutting down the application program; and powering down the electronic device after powering down the wireless communication device. 2. The method of claim 1, wherein the electronic device is a portable computing device and the wireless communication device is a wireless modem. 3. The method of claim 2, wherein the wireless communication device operates in accordance with a Bluetooth protocol. 4. The method of claim 1, wherein the power down message is encoded within an RF signal. 5. The method of claim 1, wherein the electronic device receives the power down message with a receiver distinct from the wireless communication device, the receiver matched to a transmitter used to transmit the power down message. 6. The method of claim 5, wherein the receiver is powered down after the wireless communication device and before the electronic device is powered down. 7. The method of claim 4, wherein the electronic device receives the power down message with a receiver distinct from the wireless communication device, the receiver matched to a transmitter used to transmit the power down message. 8. The method of claim 7, wherein the receiver is powered down after the wireless communication device and before the electronic device is powered down. 9. The method of claim 8, wherein the power down procedure references a log file before attempting to power down the wireless communication device and does not attempt to power down the wireless communication device if the log file indicates that the wireless communication device is powered down. 10. The method of claim 1, wherein the power down procedure references a log file before attempting to power down the wireless communication device and does not attempt to power down the wireless communication device if the log file indicates that the wireless communication device is powered down. 11. The method of claim 1, wherein the electronic device has a sleep mode and the electronic device is powered up from the sleep mode at an initial stage of the power down procedure. 12. A method of powering down a portable computing device having a wireless communication device, the method comprising: receiving a power down message transmitted from a remote control device with a receiver distinct from the wireless communication device, the receiver associate with the portable computing device and matched to a transmitter used to transmit the power down message, the portable computing device initiating a power down procedure in response to the power down message, the power down procedure referencing a log file within the portable computing device; shutting down an application program associated with the wireless communication device as part of the power down procedure; checking the log file to determine if the wireless communication device has been powered down; powering down the wireless communication device after checking the log file and shutting down the application program; updating the log file to reflect that the wireless communication device has been powered down; powering down the receiver after powering down the wireless communication device; and powering down the portable computing device after powering down the receiver. 13. The method of claim 12, wherein the electronic device has a sleep mode and the electronic device is powered up from the sleep mode at an initial stage of the power down procedure. 14. The method of claim 12, wherein the wireless communication device operates in accordance with a Bluetooth protocol. 15. The method of claim 12, wherein the power down message is encoded within an RF signal from the transmitter. icing, Applications Overview and Product Accessories Descriptions, 12 pages (Apr. 10, 1998). Johnson� Data Telemetry, Synthesized DL-3412/DL-3422 and DL-3492 High Spec Telemetry Links brochure, 4 pages, .COPYRGT.Copyright 1997 Johnson Data Telemetry Corporation. INOVONICS High Performance Wireless.RTM., 1998 Product Catalog, 24 pages (1998). INOVONICS High Performance Wireless, FA525 Frequency Agile� 900MHz Intelligent Repeater with SST�, User Manual, pp. 1-12, .COPYRGT. 1997 INOVONICS Corporation. INOVONICS, FA403 Overview, System Options and Installation, 4 pages, .COPYRGT. 1997 INOVONICS Corporation. "Enhancing the Target Guest Experience: Advanced Wireless Communications' Proposal for improving Guest Help Response Time" Jun. 26, 1997, offer for sale.
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