Patents by Inventor Peter C. Jones
Peter C. Jones 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: 20010046359Abstract: Disclosed is a single mode optical waveguide fiber having a core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in &bgr;2 under waveguide fiber bending.Type: ApplicationFiled: July 3, 2001Publication date: November 29, 2001Inventors: Peter C. Jones, Daiping Ma, David K. Smith
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Patent number: 6282354Abstract: Disclosed is a single mode optical waveguide fiber having a core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in &bgr;2 under waveguide fiber bending.Type: GrantFiled: August 17, 2000Date of Patent: August 28, 2001Assignee: Corning IncorporatedInventors: Peter C. Jones, Daiping Ma, David K. Smith
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Deferred reconstruction of objects and remote loading for event notification in a distributed system
Patent number: 6272559Abstract: Event notification in a distributed system using an object maintained in serialized form, referred to as a marshalled object. For event notification, a machine registers with a device to receive notification of particular events within a network, and a marshalled object is transmitted with a registration request.Type: GrantFiled: March 20, 1998Date of Patent: August 7, 2001Assignee: Sun Microsystems, Inc.Inventors: Peter C. Jones, Ann M. Wollrath, James H. Waldo, Kenneth C. R. C. Arnold -
Patent number: 6253256Abstract: A method and system for transmitting objects in an object-oriented distributed system allows the reconstruction of objects and downloading of code associated with such object reconstruction to be deferred until it is needed by a program. The deferred reconstruction is accomplished by using a Java object called a “marshalled object,” which is a self-describing stream and which is a first-class entity in the system, meaning that it exists within a type system of a programming language and can be accessed and manipulated by instructions written in that language. Such an object can typically be produced by any object that can be passed from one address space to another, and it can be stored, passed to other objects, or used to reconstruct an object of the original type on demand. The reconstruction of an object is deferred until the code holding a marshalled object directly calls the creation of the object using the marshalled object.Type: GrantFiled: October 15, 1997Date of Patent: June 26, 2001Assignee: Sun Microsystems, Inc.Inventors: Ann M. Wollrath, James H. Waldo, Kenneth C. R. C. Arnold, Peter C. Jones
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Patent number: 6134367Abstract: Disclosed is a single mode optical waveguide fiber having a core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, n.sub.geff, and the lowest change in .beta..sup.2 under waveguide fiber bending.Type: GrantFiled: September 2, 1998Date of Patent: October 17, 2000Assignee: Corning IncorporatedInventors: Peter C. Jones, Daiping Ma, David K. Smith
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Patent number: 6134603Abstract: A method and system is provided to uniquely identify a remote method to invoke on a server using a hash value computed from the method signature sent from the client to the server with the call request. When a client wishes to invoke a remote method located on a server, the client sends a hash value identifying the remote method to the server in the "remote method invocation" (RMI) call. In one implementation, this hash value is created by applying a hash function to the method string name and the parameter type list and possibly the return type. When the server receives the RMI call, the server identifies which method is being called using the received hash value. The server maintains a mapping of hash values to their associated remote methods located on the server and references the correct method using the hash value. Additionally, in one implementation, the server creates the mapping table dynamically when a remote object is created.Type: GrantFiled: March 20, 1998Date of Patent: October 17, 2000Assignee: Sun Microsystems, Inc.Inventors: Peter C. Jones, Ann M. Wollrath, Robert W. Scheifler
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Patent number: 6044191Abstract: A single-mode optical waveguide fiber designed to limit power penalty due to four wave mixing and a method of making the waveguide is disclosed. Variations in properties, e.g., radius or refractive index, of the waveguide fiber core provide a total dispersion which varies along the length of the waveguide. The algebraic sum of products of length times total dispersion is controlled to a pre-selected value for each waveguide fiber which makes up a system link Proper choice of total dispersion variation magnitude and sub-length results in a system link wherein a signal travels only short distances in waveguide portions having total dispersion near zero. However, the variation of the total dispersion provides a system link which has a pre-selected dispersive effect on the signal over a selected wavelength range. The dispersive effect on the signal can be chosen to be essentially zero. A number of techniques for fabricating DM fiber are also disclosed.Type: GrantFiled: November 3, 1998Date of Patent: March 28, 2000Assignee: Corning IncorporatedInventors: George E. Berkey, Venkata A. Bhagavatula, Peter C. Jones, Donald B. Keck, Yanming Liu, Robert A. Modavis, Alan J. Morrow, Mark A. Newhouse, Daniel A. Nolan
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Patent number: 5894537Abstract: A single-mode optical waveguide fiber designed to limit power penalty due to four wave mixing and a method of making the waveguide is disclosed. Variations in properties, e.g., radius or refractive index, of the waveguide fiber core provide a total dispersion which varies along the length of the waveguide. The algebraic sum of products of length times total dispersion is controlled to a pre-selected value for each waveguide fiber which makes up a system link. Proper choice of total dispersion variation magnitude and sub-length results in a system link wherein a signal travels only short distances in waveguide portions having total dispersion near zero. However, the variation of the total dispersion provides a system link which has a pre-selected dispersive effect on the signal over a selected wavelength range. The dispersive effect on the signal can be chosen to be essentially zero. A number of techniques for fabricating DM fiber are also disclosed.Type: GrantFiled: January 11, 1996Date of Patent: April 13, 1999Assignee: Corning IncorporatedInventors: George E. Berkey, Venkata A. Bhagavatula, Peter C. Jones, Donald B. Keck, Yanming Liu, Robert A. Modavis, Alan J. Morrow, Mark A. Newhouse, Daniel A. Nolan
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Patent number: 5318613Abstract: An optical waveguide fiber with a core region 1 and a cladding region 2, wherein said cladding region 2 includes an outer cladding region 3 is disclosed wherein said outer cladding region 3 is a very thin (less than 1 .mu.m in thickness) layer of TiO.sub.2 --SiO.sub.2 glass which results in a substantial reduction in the number of fiber breaks resulting from the fiber drawing process and having a predetermined TiO.sub.2 concentration less than or equal to about 10 wt. %. A method for making said fiber is also disclosed.Type: GrantFiled: March 17, 1993Date of Patent: June 7, 1994Assignee: Corning IncorporatedInventors: Lynn G. Amos, Peter C. Jones
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Patent number: 5241615Abstract: An optical waveguide fiber with a core region 1 and a cladding region 2, wherein the cladding region 2 includes an outer cladding region 3 is disclosed wherein the outer cladding region 3 is a very thin (less than 1 .mu.m in thickness) layer of TiO.sub.2 -SiO.sub.2 glass which results in a substantial reduction in the number of fiber breaks resulting from the fiber drawing process and having a predetermined TiO.sub.2 concentration less than or equal to about 10 wt. %. A method for making the fiber is also disclosed.Type: GrantFiled: June 18, 1992Date of Patent: August 31, 1993Assignee: Corning IncorporatedInventors: Lynn G. Amos, Peter C. Jones
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Patent number: 5180411Abstract: A method of making an optical waveguide fiber with a fatigue resistant TiO.sub.2 -SiO.sub.2 outer cladding, and a substantially glass blank for drawing into such fiber, wherein a glass soot TiO.sub.2 -SiO.sub.2 outermost layer, with an initial TiO.sub.2 concentration greater than 10.5 wt. %, is deposited on a preform, and the preform is exposed to an atmosphere of chlorine and oxygen at a high temperature, and the resulting TiO.sub.2 concentration in the outermost layer of the TiO.sub.2 -SiO.sub.2 outer cladding of the substantially glass blank is less than the initial TiO.sub.2 concentration. In the glass blank form, the outermost layer includes a substantial volume percentage of crystalline phases and in the fiber form, the outermost layer includes inhomogeneities.Type: GrantFiled: October 18, 1991Date of Patent: January 19, 1993Assignee: Corning IncorporatedInventors: Marcella R. Backer, Ralston R. Cavender, Jr., Peter C. Jones, James A. Murphy
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Patent number: 5140665Abstract: An optical waveguide fiber with a fatigue resistant TiO.sub.2 -SiO.sub.2 outer cladding including a cylindrical outermost layer with TiO.sub.2 concentration greater than 10.5 wt. % and thickness less than 3 .mu.m. The fiber may include a two layer outer cladding with higher TiO.sub.2 concentration in the outer layer. The outer cladding may include a plurality of inhomogeneities dispersed in a TiO.sub.2 -SiO.sub.2 matrix.Type: GrantFiled: December 22, 1989Date of Patent: August 18, 1992Assignee: Corning IncorporatedInventors: Marcella R. Backer, Michael G. Blankenship, Ralston Cavender, Bernard de Jong, Melanie L. Elder, Gregory S. Glaesemann, Peter C. Jones
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Patent number: 5067975Abstract: A method of making an optical waveguide fiber with a fatigue resistant TiO.sub.2 -SiO.sub.2 outer cladding, and a substantially glass blank for drawing into optical fiber, wherein a glass soot TiO.sub.2 -SiO.sub.2 outermost layer, with an initial TiO.sub.2 concentration greater than 10.5 wt. %, is deposited on a preform, and the preform is exposed to an atmosphere of chlorine at a high temperature, and the resulting TiO.sub.2 concentration in the outermost layer of the TiO.sub.2 -SiO.sub.2 outer cladding of the substantially glass blank is less than the initial TiO.sub.2 concentration. In the glass blank form, the outermost layer includes a substantial volume percentage of crystalline phases and in the fiber form, the outermost layer includes inhomogeneities.Type: GrantFiled: December 22, 1989Date of Patent: November 26, 1991Assignee: Corning IncorporatedInventors: Marcella R. Backer, Ralston Cavender, Melanie L. Elder, Peter C. Jones, James A. Murphy