Patents by Inventor Jin Yao
Jin Yao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150362764Abstract: An integrated optical device includes an electro-absorption modulator disposed on a top surface of an optical waveguide. The electro-absorption modulator includes germanium disposed in a cavity between an n-type doped silicon sidewall and a p-type doped silicon sidewall. By applying a voltage between the n-type doped silicon sidewall and the p-type doped silicon sidewall, an electric field can be generated in a plane of the optical waveguide, but perpendicular to a propagation direction of the optical signal. This electric field shifts a band gap of the germanium, thereby modulating the optical signal.Type: ApplicationFiled: June 17, 2015Publication date: December 17, 2015Inventors: John E. Cunningham, Jin Yao, Ivan Shubin, Guoliang Li, Xuezhe Zheng, Shiyun Lin, Hiren D. Thacker, Stevan S. Djordjevic, Ashok V. Krishnamoorthy
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Publication number: 20150293383Abstract: An integrated optical device includes an electro-absorption modulator disposed on a top surface of an optical waveguide. The electro-absorption modulator includes germanium disposed in a cavity between an n-type doped silicon sidewall and a p-type doped silicon sidewall. By applying a voltage between the n-type doped silicon sidewall and the p-type doped silicon sidewall, an electric field can be generated in a plane of the optical waveguide, but perpendicular to a propagation direction of the optical signal. This electric field shifts a band gap of the germanium, thereby modulating the optical signal.Type: ApplicationFiled: April 14, 2014Publication date: October 15, 2015Applicant: Oracle International CorporationInventors: John E. Cunningham, Jin Yao, Ivan Shubin, Guoliang Li, Xuezhe Zheng, Shiyun Lin, Hiren D. Thacker, Stevan S. Djordjevic, Ashok V. Krishnamoorthy
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Patent number: 9142698Abstract: An integrated optical device includes an electro-absorption modulator disposed on a top surface of an optical waveguide. The electro-absorption modulator includes germanium disposed in a cavity between an n-type doped silicon sidewall and a p-type doped silicon sidewall. By applying a voltage between the n-type doped silicon sidewall and the p-type doped silicon sidewall, an electric field can be generated in a plane of the optical waveguide, but perpendicular to a propagation direction of the optical signal. This electric field shifts a band gap of the germanium, thereby modulating the optical signal.Type: GrantFiled: April 14, 2014Date of Patent: September 22, 2015Assignee: ORACLE INTERNATIONAL CORPORATIONInventors: John E. Cunningham, Jin Yao, Ivan Shubin, Guoliang Li, Xuezhe Zheng, Shiyun Lin, Hiren D. Thacker, Stevan S. Djordjevic, Ashok V. Krishnamoorthy
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Patent number: 8994746Abstract: A system and method for generating a flow based on multiply types of interactions are provided. Data defining one or more sequences of multiple interactive nodes are received for the multiple interactive nodes, where each of the multiple interactive nodes corresponds to a particular type of interaction. One of the interactive nodes is designated as the starting interactive node and other interactive nodes are designated as intermediary interactive nodes, where the starting interactive node and at least one of the intermediary interactive nodes correspond to different types of interactions. Intermediary interactive nodes are connected to the starting interactive node based on the one or more sequences, where the connection includes one edge corresponding to a direct connection to the starting interactive node or multiple edges corresponding to an indirect connection via at least one other intermediary interactive node. Visualization data for the interactive nodes is generated and provided for display.Type: GrantFiled: June 27, 2012Date of Patent: March 31, 2015Assignee: Google Inc.Inventors: Jerry Hong, Fenghui Zhang, Lucas Visvikis Pettinati, Zhiting Xu, Lin Liao, Peng Li, Jiajing Wang, Jin Yao, Manuel Frank Martinez
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Publication number: 20150086149Abstract: A photonic integrated circuit (PIC) is described. This PIC includes a grating coupler for surface-normal coupling that has an alternating pattern of grating teeth and grating trenches, where the grating trenches are filled with an electro-optical material. By applying an electric potential to the grating teeth, the index of refraction of the electro-optical material can be modified.Type: ApplicationFiled: September 24, 2013Publication date: March 26, 2015Applicant: Oracle International CorporationInventors: Xuezhe Zheng, Jin Yao, Guoliang Li, Ying L. Luo, John E. Cunningham, Ashok V. Krishnamoorthy
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Publication number: 20150063753Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.Type: ApplicationFiled: September 5, 2014Publication date: March 5, 2015Inventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
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Publication number: 20140309091Abstract: A thigh exercise fitness machine for training outer thigh muscles is a disclosed to include a first base member and a second base member pivotally connected in parallel, a first sliding track and a second sliding track respectively connected to the first base member and the second base member and extending in reversed directions, a first foot plate assembly and a second foot plate member respectively slidably supported on the first sliding track and the second sliding track, two elastic loops respectively coupled between the first foot plate assembly and second foot plate assembly and the first base member and second base member and adapted to store elastic potential energy when the first and second foot plate assemblies are respectively moved along the first and second sliding tracks, enabling the user's lateral thigh muscles to be trained.Type: ApplicationFiled: June 12, 2013Publication date: October 16, 2014Inventors: Jack TANG, Xiao-Jin YAO
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Patent number: 8768123Abstract: A multi-chip module (MCM) includes a stack of chips that are coupled using optical interconnects. On a first surface of a middle chip in the stack, there are: a first optical coupler, an optical waveguide, which is coupled to the first optical coupler, and a second optical coupler, which is coupled to the optical waveguide. The first optical coupler redirects an optical signal from the optical waveguide to a first direction (which is not in the plane of the first surface), or from the first direction to the optical waveguide. The second optical coupler redirects the optical signal from the optical waveguide to a second direction (which is not in the plane of the first surface), or from the second direction to the optical waveguide. An optical path associated with the second direction passes through an opening in a substrate in the middle chip.Type: GrantFiled: August 3, 2012Date of Patent: July 1, 2014Assignee: Oracle International CorporationInventors: Jin Yao, Xuezhe Zheng, Ashok V. Krishnamoorthy, John E. Cunningham
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Publication number: 20140143781Abstract: Methods and systems to identify and migrate threads among system nodes based on system performance metrics. An example method disclosed herein includes sampling a performance metric of a computer program thread, the computer program thread executing on a home node of a computer system having multiple nodes, and determining whether the performance metric exceeds a threshold value. The method also includes identifying a remote node associated with a remote memory if the threshold value is exceeded, the remote memory being accessed by the computer program thread, and identifying the computer program thread as a candidate for migration from the home node to the remote node if the threshold value is exceeded. In this way, a computer program thread that frequently accesses a remote memory can be migrated from a home node to a remote node associated with the remote memory to reduce the latency associated with memory accesses performed by the computer program thread and thereby improve system performance.Type: ApplicationFiled: June 29, 2012Publication date: May 22, 2014Inventor: Jin Yao
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Publication number: 20140002483Abstract: A system and method for generating a flow based on multiply types of interactions are provided. Data defining one or more sequences of multiple interactive nodes are received for the multiple interactive nodes, where each of the multiple interactive nodes corresponds to a particular type of interaction. One of the interactive nodes is designated as the starting interactive node and other interactive nodes are designated as intermediary interactive nodes, where the starting interactive node and at least one of the intermediary interactive nodes correspond to different types of interactions. Intermediary interactive nodes are connected to the starting interactive node based on the one or more sequences, where the connection includes one edge corresponding to a direct connection to the starting interactive node or multiple edges corresponding to an indirect connection via at least one other intermediary interactive node. Visualization data for the interactive nodes is generated and provided for display.Type: ApplicationFiled: June 27, 2012Publication date: January 2, 2014Applicant: Google Inc.Inventors: Jerry Hong, Fenghui Zhang, Lucas Visvikis Pettinati, Zhiting Xu, Lin Liao, Peng Li, Jiajing Wang, Jin Yao, Manuel Frank Martinez
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Publication number: 20120321251Abstract: A multi-chip module (MCM) includes a stack of chips that are coupled using optical interconnects. On a first surface of a middle chip in the stack, there are: a first optical coupler, an optical waveguide, which is coupled to the first optical coupler, and a second optical coupler, which is coupled to the optical waveguide. The first optical coupler redirects an optical signal from the optical waveguide to a first direction (which is not in the plane of the first surface), or from the first direction to the optical waveguide. The second optical coupler redirects the optical signal from the optical waveguide to a second direction (which is not in the plane of the first surface), or from the second direction to the optical waveguide. An optical path associated with the second direction passes through an opening in a substrate in the middle chip.Type: ApplicationFiled: August 3, 2012Publication date: December 20, 2012Applicant: ORACLE INTERNATIONAL CORPORATIONInventors: Jin Yao, Xuezhe Zheng, Ashok V. Krishnamoorthy, John E. Cunningham
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Patent number: 8300990Abstract: An optical waveguide is described. This optical waveguide may be defined in a semiconductor layer, and may include a vertical slot that includes an electro-optic material having an electric-field-dependent index of refraction, and the electro-optic material may be other than a semiconductor in the semiconductor layer. Alternatively, the optical waveguide may include a vertical stack with two semiconductor layers that surround and partially overlap an intermediate layer, which includes the electro-optic material.Type: GrantFiled: April 14, 2010Date of Patent: October 30, 2012Assignee: Oracle America, Inc.Inventors: Guoliang Li, Jin Yao, Ashok V. Krishnamoorthy
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Patent number: 8267583Abstract: A multi-chip module (MCM), which includes a three-dimensional (3D) stack of chips that are coupled using optical interconnects, is described. In this MCM, disposed on a first surface of a middle chip in the 3D stack, there are: a first optical coupler, an optical waveguide, which is coupled to the first optical coupler, and a second optical coupler, which is coupled to the optical waveguide. The first optical coupler redirects an optical signal from the optical waveguide to a first direction (which is not in the plane of the first surface), or from the first direction to the optical waveguide. Moreover, the second optical coupler redirects the optical signal from the optical waveguide to a second direction (which is not in the plane of the first surface), or from the second direction to the optical waveguide. Note that an optical path associated with the second direction passes through an opening in a substrate in the middle chip.Type: GrantFiled: October 19, 2009Date of Patent: September 18, 2012Assignee: Oracle America, Inc.Inventors: Jin Yao, Xuezhe Zheng, Ashok V. Krishnamoorthy, John E. Cunningham
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Patent number: 8265433Abstract: An optical switch is described that includes two optical waveguides, which are defined in a semiconductor layer, positioned proximate to an intermediate component, such as a micro-resonator or a directional coupler. Material underneath a portion of either or both optical waveguides is removed so that the portion of either or both optical waveguides is free standing, and a group of electrodes is proximate to the free-standing portion of either or both optical waveguides. During operation of the optical switch, a spacing-control circuit applies an electrical signal to the group of electrodes. An electrostatic force associated with the electrical signal modifies a spacing between the free-standing portion of either or both optical waveguides and the intermediate component, thereby substantially increasing optical coupling between either or both optical waveguides and the intermediate component to convey a broadband optical signal between the optical waveguides.Type: GrantFiled: April 14, 2010Date of Patent: September 11, 2012Assignee: Oracle America, Inc.Inventors: Xuezhe Zheng, Jin Yao, Ashok V. Krishnamoorthy
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Patent number: 8218797Abstract: A micro-speaker and a manufacturing method thereof are provided. The micro-speaker has a sandwich structure. The micro-speaker includes two piezoelectric material layers and a diaphragm disposed between the two piezoelectric material layers, where the piezoelectric material layers have a ring-shaped structure. The problem of insufficient sound pressure at low frequency is resolved, and the flexibility of the micro-speaker is improved.Type: GrantFiled: April 28, 2009Date of Patent: July 10, 2012Assignee: Industrial Technology Research InstituteInventors: Hsin-Li Lee, Chin-Horng Wang, Cheng-Hsin Chuang, Jin-Yao Lai
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Publication number: 20110255822Abstract: An optical switch is described that includes two optical waveguides, which are defined in a semiconductor layer, positioned proximate to an intermediate component, such as a micro-resonator or a directional coupler. Material underneath a portion of either or both optical waveguides is removed so that the portion of either or both optical waveguides is free standing, and a group of electrodes is proximate to the free-standing portion of either or both optical waveguides. During operation of the optical switch, a spacing-control circuit applies an electrical signal to the group of electrodes. An electrostatic force associated with the electrical signal modifies a spacing between the free-standing portion of either or both optical waveguides and the intermediate component, thereby substantially increasing optical coupling between either or both optical waveguides and the intermediate component to convey a broadband optical signal between the optical waveguides.Type: ApplicationFiled: April 14, 2010Publication date: October 20, 2011Applicant: ORACLE INTERNATIONAL CORPORATIONInventors: Xuezhe Zheng, Jin Yao, Ashok V. Krishnamoorthy
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Publication number: 20110255823Abstract: An optical waveguide is described. This optical waveguide may be defined in a semiconductor layer, and may include a vertical slot that includes an electro-optic material having an electric-field-dependent index of refraction, and the electro-optic material may be other than a semiconductor in the semiconductor layer. Alternatively, the optical waveguide may include a vertical stack with two semiconductor layers that surround and partially overlap an intermediate layer, which includes the electro-optic material.Type: ApplicationFiled: April 14, 2010Publication date: October 20, 2011Applicant: Oracle International CorporationInventors: Guoliang Li, Jin Yao, Ashok V. Krishnamoorthy
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Publication number: 20110091157Abstract: A multi-chip module (MCM), which includes a three-dimensional (3D) stack of chips that are coupled using optical interconnects, is described. In this MCM, disposed on a first surface of a middle chip in the 3D stack, there are: a first optical coupler, an optical waveguide, which is coupled to the first optical coupler, and a second optical coupler, which is coupled to the optical waveguide. The first optical coupler redirects an optical signal from the optical waveguide to a first direction (which is not in the plane of the first surface), or from the first direction to the optical waveguide. Moreover, the second optical coupler redirects the optical signal from the optical waveguide to a second direction (which is not in the plane of the first surface), or from the second direction to the optical waveguide. Note that an optical path associated with the second direction passes through an opening in a substrate in the middle chip.Type: ApplicationFiled: October 19, 2009Publication date: April 21, 2011Applicant: SUN MICROSYSTEMS, INC.Inventors: Jin Yao, Xuezhe Zheng, Ashok V. Krishnamoorthy, John E. Cunningham
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Publication number: 20100150381Abstract: A micro-speaker and a manufacturing method thereof are provided. The micro-speaker has a sandwich structure. The micro-speaker includes two piezoelectric material layers and a diaphragm disposed between the two piezoelectric material layers, where the piezoelectric material layers have a ring-shaped structure. The problem of insufficient sound pressure at low frequency is resolved, and the flexibility of the micro-speaker is improved.Type: ApplicationFiled: April 28, 2009Publication date: June 17, 2010Applicant: Industrial Technology Research InstituteInventors: Hsin-Li Lee, Chin-Horng Wang, Cheng-Hsin Chuang, Jin-Yao Lai
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Patent number: D719223Type: GrantFiled: April 18, 2013Date of Patent: December 9, 2014Assignee: ProTV Development Inc.Inventors: Jack Tang, Xiao-Jin Yao