Patents by Inventor Girish Patel
Girish Patel 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).
-
Patent number: 7805139Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area that supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.Type: GrantFiled: July 12, 2009Date of Patent: September 28, 2010Assignee: Ericsson ABInventors: Kamel M. Shaheen, Girish Patel, Chenhong Huang, Mark R. O'Brien
-
Publication number: 20090275330Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area that supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.Type: ApplicationFiled: July 12, 2009Publication date: November 5, 2009Applicant: NORTEL NETWORKS LIMITEDInventors: KAMEL M. SHAHEEN, CHENHONG HUANG, GIRISH PATEL, MARK R. O'BRIEN
-
Patent number: 7580707Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area and supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit may further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services may include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.Type: GrantFiled: October 12, 2004Date of Patent: August 25, 2009Assignee: Nortel Networks LimitedInventors: Kamel M. Shaheen, Chenhong Huang, Girish Patel, Mark R. O'Brien
-
Publication number: 20070015753Abstract: A process for preparing a crystalline form of linezolid is provided comprising (a) providing a solution comprising linezolid in an organic solvent having a boiling point of less than or equal to about 150° C.; (b) adding an anti-solvent having a boiling point greater than or equal to about 50° C. to the solution; and (c) recovering the crystalline form of linezolid.Type: ApplicationFiled: July 17, 2006Publication date: January 18, 2007Applicant: Glenmark Pharmaceuticals LimitedInventors: Bobba Venkata Kumar, Pravin Kulkarni, Girish Patel, Nitin Sharad Pradhan
-
Publication number: 20060281800Abstract: A process for the preparation of a novel crystalline polymorph of olmesartan medoxomil, designated Form G, is provided comprising the steps of (a) preparing a solution comprising olmesartan medoxomil and one or more solvents selected from the group consisting of a nitrile, alcohol and mixtures thereof at a suitable temperature to obtain a solution; and (b) recovering olmesartan medoxomil substantially in polymorph Form G from the solution. A novel polymorph Form G of olmesartan medoxomil and pharmaceutical compositions containing same are also provided herein.Type: ApplicationFiled: April 12, 2006Publication date: December 14, 2006Applicant: Glenmark Pharmaceuticals LimitedInventors: Bobba Venkata Kumar, Girish Patel, Nitin Sharad Pradhan, Shekhar Bhirud
-
Patent number: 6891435Abstract: System and methods for reducing the effects of imbalance between input signals in a gain controlled differential amplifier are shown. Distortion in the amplifier is reduced by modulating the gain control input based upon detected differences between the signal levels of the differential input signal source.Type: GrantFiled: December 13, 2002Date of Patent: May 10, 2005Assignee: Microtune (Texas), L.P.Inventors: Girish Patel, James M. Douglass
-
Publication number: 20050048969Abstract: A wireless communication system facilitates communication within subscribing units within a respective service area, supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit may further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services may include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.Type: ApplicationFiled: October 12, 2004Publication date: March 3, 2005Inventors: Kamel Shaheen, Chenhong Huang, Girish Patel, Mark O'Brien
-
Publication number: 20040113690Abstract: Systems and methods for reducing the effects of imbalance between input signals in a gain controlled differential amplifier are shown. Distortion in the amplifier is reduced by modulating the gain control input based upon detected differences between the signal levels of the differential input signal source.Type: ApplicationFiled: December 13, 2002Publication date: June 17, 2004Applicant: Microtune (Texas), L.P.Inventors: Girish Patel, James M. Douglass
-
Patent number: 6438369Abstract: The present invention relates to a cellular and PCS enhanced roaming arrangement for assuring that a roaming mobile station is serviced outside its home service market be a preferred service provider. A mobile station outside its home market, when attempting to register or initiate a call, will attempt to connect to a remote service provider in the geographic region where it is located in the same manner as it would in the home market. The remote service provider will contact the home service provider seeking, among other things, service information and account status. In the event that the home service provider has more favorable arrangements with another service provider in the geographic region where the mobile station is located, the home service provider will transmit redirection instructions to the remote service provider which is transmitted to the mobile station.Type: GrantFiled: December 14, 1999Date of Patent: August 20, 2002Assignee: Nortel Networks Ltd.Inventors: Chenhong Huang, Kim T. Chang, Girish Patel
-
Patent number: 6363251Abstract: The present invention relates to a cellular and PCS enhanced roaming arrangement for assuring that a roaming mobile station is serviced outside its home service market be a preferred service provider. A mobile station outside its home market, when attempting to register or initiate a call, will attempt to connect to a remote service provider in the geographic region where it is located in the same manner as it would in the home market. The remote service provider will contact the home service provider seeking, among other things, service information and account status. In the event that the home service provider has more favorable arrangements with another service provider in the geographic region where the mobile station is located, the home service provider will transmit redirection instructions to the remote service provider which is transmitted to the mobile station.Type: GrantFiled: March 29, 2000Date of Patent: March 26, 2002Assignee: Nortel Networks LTDInventors: Chenhong Huang, Kim T. Chang, Girish Patel
-
Patent number: 6363339Abstract: In recent years, the telecommunications industry has witnessed the proliferation of a variety of digital vocoders in order to meet bandwidth demands of different wireline and wireless communication systems. The rapid growth in the diversity of networks and the number of users of such networks is increasing the number of instances where two vocoders are placed in tandem to serve a single connection. Such arrangements of low bit-rate codecs can degrade the quality of the transmitted speech. To overcome this problem in the specific situation involving store-and-forward systems (e.g. voicemail), the invention provides a novel method and apparatus including a plurality of different vocoders that can be selectively invoked to process the voice signal so as to reduce signal degradation. Also, the apparatus has the capability to bypass the vocoder bank when exchanging data with a remote signal processor capable of accepting data frames in compressed format.Type: GrantFiled: October 10, 1997Date of Patent: March 26, 2002Assignee: Nortel Networks LimitedInventors: Rafi Rabipour, Girish Patel
-
Patent number: 6219539Abstract: A communications system includes a dual mode mobile station and a home base station. Dual mode mobile station is operable selectively in CDMA and analog modes. Home base station includes circuitry for establishing wireless communications with mobile station in the analog mode, and circuitry for establishing communications with a wireline communications system, the base station allowing an exchange of information between mobile station and wireline system in the analog mode.Type: GrantFiled: April 8, 1997Date of Patent: April 17, 2001Assignee: Nortel Networks CorporationInventors: Kalyan Basu, Girish Patel, Chenhong Huang
-
Patent number: 6169893Abstract: A wireless communication system facilitates communication with subscribing units within a respective service area and supports at least one communication protocol revision. The system communicates with a subscribing unit operating within a respective service area to determine the communication protocol revisions supported by the subscribing unit. Subsequently, the subscribing unit and base station communicate according to a supported communication protocol revision. The base station and subscribing unit may further communicate to indicate extended services supported by the subscribing unit and the methods of delivering the extended services to the subscribing unit. The extended services may include caller line ID, message waiting indications and short message services among other extended services. In addition to a base station, the wireless communication system may include a mobile switching center that is in communication with the base station.Type: GrantFiled: December 31, 1997Date of Patent: January 2, 2001Assignee: Nortel Networks LimitedInventors: Kamel M. Shaheen, Chenhong Huang, Girish Patel, Mark R. O'Brien
-
Patent number: 6058309Abstract: The present invention relates to a cellular and PCS enhanced roaming arrangement for assuring that a roaming mobile station is serviced outside its home service market be a preferred service provider. A mobile station outside its home market, when attempting to register or initiate a call, will attempt to connect to a remote service provider in the geographic region where it is located in the same manner as it would in the home market. The remote service provider will contact the home service provider seeking, among other things, service information and account status. In the event that the home service provider has more favorable arrangements with another service provider in the geographic region where the mobile station is located, the home service provider will transmit redirection instructions to the remote service provider which is transmitted to the mobile station.Type: GrantFiled: August 9, 1996Date of Patent: May 2, 2000Assignee: Nortel Networks CorporationInventors: Chenhong Huang, Kim T. Chang, Girish Patel
-
Patent number: 5897767Abstract: A chemical composition is disclosed for use in the treatment and dissolution of oil sludge. The composition includes an anionic surfactant and a nonionic surfactant. In addition, a wetting agent is included along with an aromatic hydrocarbon carrier. Finally, an effective amount of a catalyst activator is included.Type: GrantFiled: December 20, 1996Date of Patent: April 27, 1999Inventor: Girish Patel
-
Patent number: 4903263Abstract: The invention relates to upgrading existing telephone central offices which utilize electromechanical or electronic switching equipment to include the capability of processing calls in the ISDN protocol. In particular, it relates to providing said switching equipment with the capability of controlling the connection, management, and disconnection of telephone circuits using Integrated Services Digital Network (ISDN), a national and international standard set of protocols for providing such circuit control and providing and receiving information via the ISDN protocol for enabling enhanced service in the switching equipment.Type: GrantFiled: October 3, 1988Date of Patent: February 20, 1990Assignee: Network Access CorporationInventors: Rajendra Patel, Girish Patel
-
Patent number: 4853955Abstract: The invention relates to upgrading existing telephone central offices which utilize electromechanical or electronic switching equipment incapable of using the SS7 protocol. In particular, it relates to providing the switching equipment with the capability of controlling the connection, management, and disconnection of telephone circuits using Signaling System Number 7, a national and international standard set of protocols for providing such circuit control and providing and receiving information via the SS7 protocol for enabling enhanced service in the switching equipment.Type: GrantFiled: April 27, 1988Date of Patent: August 1, 1989Assignee: Network Access CorporationInventors: David W. Thorn, Rajendra Patel, Gerald Coley, Ashok Trivedi, Girish Patel
-
Patent number: 4001151Abstract: Water-wettable anhydrous products, such as the powders and creams used in cosmetic and drug products, are admixed with 20% to 60% by weight, based on the weight of the total formulation, of a powdered polyethylene or powdered polypropylene polymer, to improve wettability characteristics. Denture adhesive powders prepared from an anionic/cationic adhesive combination, together with the powdered polyethylene or polypropylene polymer display particularly improved properties. The polyethylene or polypropylene polymer may also be admixed with other anhydrous products including dentifrices, vaginal powder sprays, and the like. Low molecular weight polyethylene powder, with an average molecular weight of from 1,000 to 3,500, is suitable for use in products of the invention. For the polypropylene, a molecular weight of from 120,000 to 350,000 is specified. The powdered polymers have a particle size of less than 422 microns.Type: GrantFiled: December 9, 1974Date of Patent: January 4, 1977Assignee: Warner-Lambert CompanyInventors: James J. Keegan, Girish Patel, Howard Rubin
-
Patent number: 3936402Abstract: Water-wettable anhydrous products, such as the powders and creams used in cosmetic and drug products, are admixed with 20 to 60% by weight, based on the weight of the total formulation, of a powdered polyethylene or powdered polypropylene polymer, to improve wettability characteristics. Denture adhesive powders prepared from an anionic/cationic adhesive combination, together with the powdered polyethylene or polypropylene polymer display particularly improved properties. The polyethylene or polypropylene polymer may also be admixed with other anhydrous products including dentifrices, vaginal powder sprays, and the like. Low molecular weight polyethylene powder, with an average molecular weight of from 1,000 to 3,500, is suitable for use in products of the invention. For the polypropylene, a molecular weight of from 120,000 to 350,000 is specified. The powdered polymers have a particle size of less than 422 microns.Type: GrantFiled: December 9, 1974Date of Patent: February 3, 1976Assignee: Warner-Lambert CompanyInventors: James J. Keegan, Girish Patel, Howard Rubin