IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0208554
(1998-12-09)
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발명자
/ 주소 |
- Mitchell, Frederick H.
- Bainbridge, David K.
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출원인 / 주소 |
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대리인 / 주소 |
Hamilton, Brook, Smith & Reynolds, P.C.
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인용정보 |
피인용 횟수 :
182 인용 특허 :
16 |
초록
▼
A method and apparatus are provided which present hierarchical data to a user via a graphical user interface. A preferred embodiment represents hierarchical data related to a computer network and is provided to a user as part of a network management software application. In the interface, hierarchic
A method and apparatus are provided which present hierarchical data to a user via a graphical user interface. A preferred embodiment represents hierarchical data related to a computer network and is provided to a user as part of a network management software application. In the interface, hierarchical data is represented by nodes, beginning with one or more top nodes and extending into lower hierarchical levels by the display of child nodes, child's child nodes, and so forth. The arrangement of nodes on the graphical user interface is such that scaling portrays the various hierarchical levels, and nodes do not spatially interfere with one another. Navigation through the hierarchical data is provided by allowing the user to select any visible node, at which point a zoom-in or zoom-out view to the selected node as a centrally located node on the interface is performed. Child nodes at lower hierarchical levels that were not visible before selection are then made visible up to a predetermined number of levels within the hierarchy. A map is provided on the interface which allows a user to graphically comprehend the present location of all nodes displayed on the interface in relation to their position within the overall hierarchy. As applied to network management, the interface allows errors in low level devices within a network to be visually propagated up to the upper levels of the hierarchy, for display to a user viewing only the top levels. The interface and computing system configured according to the invention overcomes problems of prior art systems which obscure a user location within a large hierarchy and the invention overcomes significant navigation problems of prior art systems.
대표청구항
▼
A method and apparatus are provided which present hierarchical data to a user via a graphical user interface. A preferred embodiment represents hierarchical data related to a computer network and is provided to a user as part of a network management software application. In the interface, hierarchic
A method and apparatus are provided which present hierarchical data to a user via a graphical user interface. A preferred embodiment represents hierarchical data related to a computer network and is provided to a user as part of a network management software application. In the interface, hierarchical data is represented by nodes, beginning with one or more top nodes and extending into lower hierarchical levels by the display of child nodes, child's child nodes, and so forth. The arrangement of nodes on the graphical user interface is such that scaling portrays the various hierarchical levels, and nodes do not spatially interfere with one another. Navigation through the hierarchical data is provided by allowing the user to select any visible node, at which point a zoom-in or zoom-out view to the selected node as a centrally located node on the interface is performed. Child nodes at lower hierarchical levels that were not visible before selection are then made visible up to a predetermined number of levels within the hierarchy. A map is provided on the interface which allows a user to graphically comprehend the present location of all nodes displayed on the interface in relation to their position within the overall hierarchy. As applied to network management, the interface allows errors in low level devices within a network to be visually propagated up to the upper levels of the hierarchy, for display to a user viewing only the top levels. The interface and computing system configured according to the invention overcomes problems of prior art systems which obscure a user location within a large hierarchy and the invention overcomes significant navigation problems of prior art systems. ting signal and a duty ratio corresponds to the intensity designated by the intensity-designating signal; and a section for generating, as the driving current, said pulse current having the peak current value and the duty ratio in accordance with the respective current value-designating signal and ratio-designating signal. 2. A light emitting apparatus according to claim 1, wherein the light emitting section is an LED device. 3. A light emitting apparatus according to claim 2, wherein: the color-designating signal is a color signal for designating a color of light to be emitted by the LED device; and the intensity-designating signal is an intensity signal for designating an intensity of the light to be emitted by the LED device. 4. A light emitting apparatus according to claim 1, wherein the light emitting section is an LED bullet comprising: an LED device; and a fluorescent excited by light emitted by the LED device to emit light. 5. A light emitting apparatus according to claim 4, wherein when the driving current value is changed, a change in an emission wavelength of the LED bullet is larger than a change in an emission wavelength of the LED device. 6. A light emitting apparatus according to claim 4, wherein: the color-designating signal is a chromaticity signal for designating a color of light to be emitted by the LED bullet; and the intensity-designating signal is the luminance signal for designating an intensity of the light to be emitted by the LED bullet. 7. A light emitting apparatus according to claim 1, comprising: a plurality of the light emitting sections; and a plurality of the driving sections respectively corresponding to the plurality of the light emitting sections, wherein a color and intensity of light emitted by each of the plurality of the light emitting sections is controlled by a corresponding one of the plurality of the driving sections. 8. A light emitting apparatus comprising: a light emitting section for emitting light, a color of the light being blue shifted with a change in value of a driving current; and a driving section for driving the light emitting section so that the light emitting section emits light having a desired color and a desired intensity, by generating a pulse current based on a signal designating the desired color and a signal designating the desired intensity and by applying the said pulse current to the light emitting section, wherein the light emitting section is an LED device, and the LED device comprises: an InGaN active layer; and an AlGaN layer having two layers, provided on the InGaN active layer, wherein one of the two layers is a first AlGaN layer contracting the InGaN active layer, and the other of the two layers of the AlGaN layer is a second AlGaN layer provided on the first AlGaN layer, the first AlGaN layer is produced at substantially the same growth temperature as the InGaN active layer, and the second AlGaN layer is produced at a growth temperature higher than the growth temperature of the first AlGaN layer. 9. A light emitting apparatus comprising: a light emitting section for emitting light, a color of the light being blue shifted with a change in value of a driving current; and a driving section for driving the light emitting section so that the light emitting section emits light having a desired color and a desired intensity, by generating a pulse current based on a signal designating the desired color and a signal designating the desired intensity and by applying said pulse current to the light emitting section, wherein the light emitting section is an LED bullet comprising: an LED device; and a fluorescent excited by light emitted by the LED device to emit light, wherein the LED device comprises: an InGaN active layer; and an AlGaN layer having two layers, provided on the InGaN active layer, wherein one of the two layers is a first AlGaN layer contracting the InGaN active layer, and the other of the tw o layers of the AlGaN layer is a second AlGaN layer provided on the first AlGaN layer, the first AlGaN layer is produced at substantially the same growth temperature as the InGaN active layer, and the second AlGaN layer is produced at a growth temperature higher than the growth temperature of the first AlGaN layer. 10. A method for driving a light emitting apparatus, the apparatus comprising: a light emitting section for emitting light, a color of the light being blue shifted with a change in value of a driving current; and a driving section for driving the light emitting section, and the method comprising the steps of: receiving a signal designating a desired color and a signal designating a desired intensity; generating a pulse current based on the color-designating signal and the intensity-designating signal; and applying said pulse current to the light emitting section so that the light emitting section emits light having the desired color and the desired intensity; converting the color-designating signal to a signal designating a peak current value in accordance with current value in accordance with current versus emission wavelength characteristics of the light emitting section; calculating a signal designating a duty ratio based on the intensity-signal and the peak current value-designating signal, in such a manner that the product of a peak current value designated by the peak current value-designating signal and the duty corresponds to the intensity designated by the intensity-designating signal; and generating as the driving current a pulse current having the peak current value and the duty ratio in accordance with the respective peak current value-designating signal and duty ratio-designating signal. 11. A method for driving a light emitting apparatus according to claim 10, wherein the light emitting section is an LED device. 12. A method for driving a light emitting apparatus according to claim 11, wherein: the color-designating signal is a color signal for designating a color of light to be emitted by the LED device; and the intensity-designating signal is an intensity signal for designating and intensity of the light to be emitted by the LED device. 13. A method for driving a light emitting apparatus according to claim 11, wherein; the peak current value is controlled so that the emission wavelength of the LED device is changed; and the duty ratio is controlled so that the emission intensity of the LED device is substantially maintained constant. 14. A method for driving a light emitting apparatus according to claim 10, wherein the light emitting section is an LED bullet comprising: an LED device; and a fluorescent excited by light emitted by the LED device to emit light. 15. A method for driving a light emitting apparatus according to claim 14, wherein when the driving current value is changed, a change in an emission wavelength of the LED bullet is larger than a change in an emission wavelength of the LED device. 16. A method for driving a light emitting apparatus according to claim 14, wherein: the color-designating signal is a chromaticity signal for designating a color of light to be emitted by the LED bullet; and the intensity-designating signal is a luminance signal for designating an intensity of the light to be emitted by the LED bullet. 17. A method for driving a light emitting apparatus according to claim 10, the light emitting apparatus comprising: a plurality of the light emitting sections; and a plurality of the driving sections respectively corresponding to the plurality of the light emitting sections, wherein the color and intensity of light emitted by each of the plurality of the light emitting sections is controlled by a corresponding one of the plurality of the driving sections. 18. A method for driving a light emitting apparatus, the apparatus comprising: a light emitting section for emitting light, a color of the light being blue shifted with a change in value of a driving current; and a driving section for driving the light emitting section wherein the light emitting section is an LED device comprising: an InGaN active layer; and an AlGaN layer having two layers, provided on the InGaN active layer, wherein one of the two layers is a first AlGaN layer contracting the InGaN active layer, and the other of the two layers of the AlGaN layer is a second AlGaN layer provided on the first AlGaN layer, the first AlGaN layer is produced at substantially the same growth temperature as the InGaN active layer, and the second AlGaN layer is produced at a growth temperature higher than the growth temperature of the first AlGaN layer; and the method comprising the steps of: receiving a signal designating a desired color and a signal designating a desired intensity; generating a pulse current based on the color-designating signal and the intensity designating signal; applying said pulse current to the light emitting section so that the light emitting section emits light having the desired color and the desired intensity. 19. A method for driving a light emitting apparatus, the apparatus comprising: a light emitting section for emitting light, a color of the light being blue shifted with a change in a driving current; and a driving section for driving the light emitting section wherein the light emitting section is an LED bullet comprising: an LED device; a fluorescent excited by light emitted by the LED device to emit light; an InGaN active layer; and an AlGaN layer having two layers, provided on the InGaN active layer, wherein one of the two layers is a first AlGaN layer contracting the InGaN active layer, and the other of the two layers of the AlGaN layer is a second AlGaN layer provided on the first AlGaN layer, the first AlGaN layer is produced at substantially the same growth temperature as the InGaN active layer, and the second AlGaN layer is produced at a growth temperature higher than the growth temperature of the first AlGaN layer; and the method comprising the steps of: receiving a signal designating a desired color and a signal designating a desired intensity; generating a pulse current based on the color-designating signal and the intensity-designating signal; applying said pulse current to the light emitting section so that the light emitting section emits light having the desired color and the desired intensity. 20. A display apparatus comprising: a plurality of light emitting sections provided in a plane, light emitted by each of the plurality of light emitting sections being blue shifted with a change in value of a driving current; and a plurality of driving sections each for driving a corresponding one of the plurality of light emitting sections so that the corresponding one of the plurality of light emitting sections emits light having a desired color and a desired intensity, by each generating a pulse current based on a signal designating the desired color and a signal designating the desired intensity and by each applying the driving current to the corresponding one of the plurality of light emitting sections, wherein the color and intensity of the respective light emitting section are controlled in accordance with a characteristics between a current value and an emitting color of the light emitting section wherein each driving section comprises: a converting section for converting the color-designating signal for that driving section to a signal designating a peak current value in accordance with current versus emission wavelength characteristics of the corresponding light emitting section: a calculating section for calculating a signal designating a duty ratio based on the intensity-designating signal for that driving section and the peak current value-designating signal for that driving section, in such a manner that the product of a peak current value designated by the peak current value-designating signal a
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