Patents by Inventor Vaidyanathan Ramaswami
Vaidyanathan Ramaswami 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: 20240378975Abstract: A system and method for rendering an alarm signal when a door of an appliance is in a hazard condition. The system includes at least one electromagnetic (EME) transducer configured to render an alarm signal when the door of the appliance is in the hazard condition, wherein the at least one electromagnetic (EME) transducer includes at least one of a motion sensor unit, a light emitter unit, a gas ejector unit, and a sound generator, and wherein the appliance is a household appliance. The system can include a controller communicatively coupled to the at least one EME transducer and configured to receive a motion detection signal from the motion sensor unit, and send a light emission signal, a gas ejection signal, or a sound signal to the at least one EME transducer.Type: ApplicationFiled: April 23, 2024Publication date: November 14, 2024Inventor: Vaidyanathan Ramaswami
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Patent number: 10237623Abstract: A method includes evaluating a bandwidth capacity of an uplink between a first customer premises equipment device and a network node of a multimedia distribution network. The method includes transmitting a portion of multimedia content from the first customer premises equipment device to a second customer premises equipment device. The method includes, responsive to determining that the bandwidth capacity of the uplink is greater than a threshold, determining a number of subsequent requestors that the first customer premises equipment device is capable of servicing, selecting a first set of helper virtual peers from a pool of available helper virtual peers based on the number of subsequent requestors, and transmitting the multimedia content from the first customer premises equipment device to the first set of helper virtual peers.Type: GrantFiled: July 19, 2017Date of Patent: March 19, 2019Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Publication number: 20170318354Abstract: A method includes evaluating a bandwidth capacity of an uplink between a first customer premises equipment device and a network node of a multimedia distribution network. The method includes transmitting a portion of multimedia content from the first customer premises equipment device to a second customer premises equipment device. The method includes, responsive to determining that the bandwidth capacity of the uplink is greater than a threshold, determining a number of subsequent requestors that the first customer premises equipment device is capable of servicing, selecting a first set of helper virtual peers from a pool of available helper virtual peers based on the number of subsequent requestors, and transmitting the multimedia content from the first customer premises equipment device to the first set of helper virtual peers.Type: ApplicationFiled: July 19, 2017Publication date: November 2, 2017Inventors: VAIDYANATHAN RAMASWAMI, RITTWIK JANA
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Patent number: 9749702Abstract: A method includes evaluating a bandwidth capacity of an uplink between a first customer premises equipment device and a network node of a multimedia distribution network. The method includes receiving a message at the first customer premises equipment device from the network node, the message indicating a request for multimedia content by a second customer premises equipment device, and instructing the first customer premise equipment device to provide the multimedia content to the second customer premise equipment device. The method includes transmitting a portion of the multimedia content from the first customer premises equipment device to the second customer premises equipment device. The method further includes, when the bandwidth capacity of the uplink is greater than a threshold, transmitting the multimedia content from the first customer premises equipment device to a first set of helper virtual peers selected based on the bandwidth capacity.Type: GrantFiled: May 26, 2016Date of Patent: August 29, 2017Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Publication number: 20160269800Abstract: A method includes evaluating a bandwidth capacity of an uplink between a first customer premises equipment device and a network node of a multimedia distribution network. The method includes receiving a message at the first customer premises equipment device from the network node, the message indicating a request for multimedia content by a second customer premises equipment device, and instructing the first customer premise equipment device to provide the multimedia content to the second customer premise equipment device. The method includes transmitting a portion of the multimedia content from the first customer premises equipment device to the second customer premises equipment device. The method further includes, when the bandwidth capacity of the uplink is greater than a threshold, transmitting the multimedia content from the first customer premises equipment device to a first set of helper virtual peers selected based on the bandwidth capacity.Type: ApplicationFiled: May 26, 2016Publication date: September 15, 2016Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Patent number: 9379908Abstract: A method includes at a first customer premises equipment (CPE) device, generating a first request for multimedia content. The method also includes sending the first request to a network node of the multimedia distribution network. The method further includes receiving the multimedia content from a virtual peer located at the network node and storing the multimedia content at the first CPE device. The method also includes receiving a message via the multimedia distribution network, the message indicating a second request for the multimedia content by a second customer premises equipment (CPE) device. The method further includes transmitting at least a portion of the stored multimedia content to the second CPE device.Type: GrantFiled: October 18, 2012Date of Patent: June 28, 2016Assignee: AT&T Intellectual Property I, L.P.Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Patent number: 8660114Abstract: A method and apparatus for handling internet access telephone calls made via cable company telephone services. A head end data terminal receives cable signals and converts them into individual signals. An intelligent switch detects signals destined for an internet service provider and routes those signals on a separate path to the internet service provider. A central switch routes the other signals along a telephone network. A computer program can control the steps of receiving cable signals, converting them into voice band signals, routing the signals that are not for the intended recipient to a central switch, multiplexing the signals for the intended recipient together, and sending the multiplexed signals to the intended recipient.Type: GrantFiled: December 7, 2011Date of Patent: February 25, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: Vaidyanathan Ramaswami, Duncan K. Sparrell, Simon D. Byers, Kenneth W. Church
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Patent number: 8589993Abstract: A disclosed method of distributing multimedia content to end users in a multimedia content distribution network includes segmenting time in a series of intervals referred to herein as limited-chain relay (LCR) intervals. The LCR intervals may have a duration of time T although an LCR interval may be terminated before the duration expires. During any interval, the LCR distribution method includes responding to a first request for a program of multimedia content (PMC) from a first requestor by delivering the PMC from a video server to the customer premises equipment (CPE) of the requestor and storing the PMC on the CPE of the first requestor. The method further includes responding to subsequent requests for the PMC that occur before the time T and before the interval terminates otherwise from subsequent requestors by delivering at least some portion of the PMC to the subsequent requestors from the CPE of at least one previous requestor.Type: GrantFiled: August 29, 2008Date of Patent: November 19, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Patent number: 8321900Abstract: A method includes at a first customer premises equipment (CPE) device coupled to a multimedia distribution network, generating a first request for multimedia content. The method also includes sending the first request to a network node of the multimedia distribution network. The method further includes receiving the multimedia content from a virtual peer located at the network node and storing the multimedia content at the first CPE device. The method also includes receiving a message via the multimedia distribution network, the message indicating a transmission of a second request for the multimedia content by a second customer premises equipment (CPE) device. The method further includes transmitting at least a portion of the stored multimedia content to the second CPE device.Type: GrantFiled: December 12, 2009Date of Patent: November 27, 2012Assignee: AT&T Intellectual Property I, L.P.Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Publication number: 20120076138Abstract: A method and apparatus for handling internet access telephone calls made via cable company telephone services. A head end data terminal receives cable signals and converts them into individual signals. An intelligent switch detects signals destined for an internet service provider and routes those signals on a separate path to the internet service provider. A central switch routes the other signals along a telephone network. A computer program can control the steps of receiving cable signals, converting them into voice band signals, routing the signals that are not for the intended recipient to a central switch, multiplexing the signals for the intended recipient together, and sending the multiplexed signals to the intended recipient.Type: ApplicationFiled: December 7, 2011Publication date: March 29, 2012Inventors: Vaidyanathan Ramaswami, Duncan K. Sparrell, Simon D. Byers, Kenneth W. Church
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Patent number: 8094650Abstract: A method and apparatus for handling internet access telephone calls made via cable company telephone services. A head end data terminal receives cable signals and converts them into individual signals. An intelligent switch detects signals destined for an internet service provider and routes those signals on a separate path to the internet service provider. A central switch routes the other signals along a telephone network. A computer program can control the steps of receiving cable signals, converting them into voice band signals, routing the signals that are not for the intended recipient to a central switch, multiplexing the signals for the intended recipient together, and sending the multiplexed signals to the intended recipient.Type: GrantFiled: April 21, 2008Date of Patent: January 10, 2012Assignee: AT&T Intellectual Property II, L.P.Inventors: Vaidyanathan Ramaswami, Duncan K. Sparrell, Simon D. Byers, Kenneth W. Church
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Publication number: 20110145870Abstract: A method includes at a first customer premises equipment (CPE) device coupled to a multimedia distribution network, generating a first request for multimedia content. The method also includes sending the first request to a network node of the multimedia distribution network. The method further includes receiving the multimedia content from a virtual peer located at the network node and storing the multimedia content at the first CPE device. The method also includes receiving a message via the multimedia distribution network, the message indicating a transmission of a second request for the multimedia content by a second customer premises equipment (CPE) device. The method further includes transmitting at least a portion of the stored multimedia content to the second CPE device.Type: ApplicationFiled: December 12, 2009Publication date: June 16, 2011Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Publication number: 20100058403Abstract: A disclosed method of distributing multimedia content to end users in a multimedia content distribution network includes segmenting time in a series of intervals referred to herein as limited-chain relay (LCR) intervals. The LCR intervals may have a duration of time T although an LCR interval may be terminated before the duration expires. During any interval, the LCR distribution method includes responding to a first request for a program of multimedia content (PMC) from a first requestor by delivering the PMC from a video server to the customer premises equipment (CPE) of the requestor and storing the PMC on the CPE of the first requestor. The method further includes responding to subsequent requests for the PMC that occur before the time T and before the interval terminates otherwise from subsequent requestors by delivering at least some portion of the PMC to the subsequent requestors from the CPE of at least one previous requestor.Type: ApplicationFiled: August 29, 2008Publication date: March 4, 2010Inventors: Vaidyanathan Ramaswami, Rittwik Jana
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Publication number: 20090261943Abstract: A method and apparatus for enabling the use of an IP based network that supports triple play services, comprising voice service, data service and video service, to provide premise monitoring are disclosed. For example, the method monitors a premise via at least one sensing device, and sends security related information to a headend office in a communication network when a security event is detected, wherein the communication network is a triple play service network supporting a voice service, a video service, and a data service.Type: ApplicationFiled: April 16, 2008Publication date: October 22, 2009Inventors: RITTWIK JANA, Vaidyanathan Ramaswami
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Publication number: 20080205383Abstract: A method and apparatus for handling internet access telephone calls made via cable company telephone services. A head end data terminal receives cable signals and converts them into individual signals. An intelligent switch detects signals destined for an internet service provider and routes those signals on a separate path to the internet service provider. A central switch routes the other signals along a telephone network. A computer program can control the steps of receiving cable signals, converting them into voice band signals, routing the signals that are not for the intended recipient to a central switch, multiplexing the signals for the intended recipient together, and sending the multiplexed signals to the intended recipient.Type: ApplicationFiled: April 21, 2008Publication date: August 28, 2008Inventors: Vaidyanathan Ramaswami, Duncan K. Sparrell, Simon D. Byers, Kenneth W. Church
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Patent number: 7369542Abstract: A method and apparatus for handling internet access telephone calls made via cable company telephone services. A head end data terminal receives cable signals and converts them into individual signals. An intelligent switch detects signals destined for an internet service provider and routes those signals on a separate path to the internet service provider. A central switch routes the other signals along a telephone network. A computer program can control the steps of receiving cable signals, converting them into voice band signals, routing the signals that are not for the intended recipient to a central switch, multiplexing the signals for the intended recipient together, and sending the multiplexed signals to the intended recipient.Type: GrantFiled: March 4, 2004Date of Patent: May 6, 2008Assignee: AT&T Corp.Inventors: Vaidyanathan Ramaswami, Duncan K. Sparrell, Simon D. Byers, Kenneth W. Church
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Patent number: 7286654Abstract: Congestion problems in networks are alleviated with a method that works toward insuring that unused capacity will always exist in elements of a network that are resources which are shared by a plurality of users and which, consequently, can be overloaded. In response to each request to establish a connection over a path in the network, pursuant to a predetermined algorithm the method services the request, declines to service the request, or services the request after dropping an established connection. In one embodiment, when unused capacity on the path is above a first preselected level, all requests are serviced. When unused capacity falls below a second preselected threshold, no requests are serviced. When unused capacity is between the first and second thresholds, an existing data connection is dropped if a requested connection is a voice connection and the number of existing data connections exceeds a preselected threshold.Type: GrantFiled: May 2, 2006Date of Patent: October 23, 2007Assignee: AT&T Corp.Inventors: Soohan Ahn, Vaidyanathan Ramaswami
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Patent number: 7099329Abstract: An arrangement where connections between a terminal and a switch are effected through a serial connection of shared, overloadable, resources, and where conventionally each of the resources has a given number of communication channels, provides for effective congestion control by converting one or more of the communications channels to one or more groups of enhanced signaling channels. The congestion control is effected by employing the enhanced signaling channels, which can carry audible signals, to determine whether to set up requested calls, based on a preselected congestion control process.Type: GrantFiled: December 22, 2001Date of Patent: August 29, 2006Assignee: AT&T Corp.Inventors: Gagan L. Choudhury, Vaidyanathan Ramaswami
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Patent number: 7068766Abstract: Congestion problems in networks are alleviated with a method that works toward insuring that unused capacity will always exist in elements of a network that are resources which are shared by a plurality of users and which, consequently, can be overloaded. In response to each request to establish a connection over a path in the network, pursuant to a predetermined algorithm the method services the request, declines to service the request, or services the request after dropping an established connection. In one embodiment, when unused capacity on the path is above a first preselected level, all requests are serviced. When unused capacity falls below a second preselected threshold, no requests are serviced. When unused capacity is between the first and second thresholds, an existing data connection is dropped if a requested connection is a voice connection and the number of existing data connections exceeds a preselected threshold.Type: GrantFiled: December 17, 2002Date of Patent: June 27, 2006Assignee: AT&T Corp.Inventors: Soohan Ahn, Vaidyanathan Ramaswami
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Patent number: 6987848Abstract: A method for alleviating congestion problems in prior art networks delays provision of dial tone signals to terminals that are, likely, carrying out a re-dial attempt in excess of a preselected number of re-dial attempts. A determination that the terminal seeking to establish a connection is likely carrying out a re-dial attempt may be based on numerous factors, such as the time since the last time the terminal desired to establish a call, the duration of the last call, etc. The delay that is imposed is, advantageously, sensitive to the number of times the terminal has attempted a re-dial, and on other conditions, such as the cause of the failure to establish a connection, network congestion conditions, etc. In imposing the dial tone delay, identities of the terminals that are to receive a delayed dial tone are placed in a FIFO queue.Type: GrantFiled: December 22, 2001Date of Patent: January 17, 2006Assignee: AT&T Corp.Inventors: Gagan L. Choudhury, Alan Edward Kaplan, David John Poole, Vaidyanathan Ramaswami, Ward Whitt