Patents by Inventor Alexander Gostrer
Alexander Gostrer 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: 20170250818Abstract: Devices and methods for securely upgrading devices, such as field upgradeable units, are disclosed. In response to receiving an update object, a device may determine whether a predefined location of memory includes a predetermined value. Based on the value in the predefined location, the device may store the received update object in a verification portion of the memory. After verifying the authenticity of the update object, the device may copy the update object from the verification portion of the memory to an inactive portion. The inactive portion of the memory can be swapped with an active portion of the memory, such that the inactive portion becomes active.Type: ApplicationFiled: April 13, 2017Publication date: August 31, 2017Applicant: Silver Spring Networks, Inc.Inventors: Kevin Deierling, Aditi Dubey, Alexander Gostrer, Kunal Pankaj Shah
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Patent number: 9652755Abstract: Devices and methods for securely upgrading devices, such as field upgradeable units, are disclosed. In response to receiving an update object, a device may determine whether a predefined location of memory includes a predetermined value. Based on the value in the predefined location, the device may store the received update object in a verification portion of the memory. After verifying the authenticity of the update object, the device may copy the update object from the verification portion of the memory to an inactive portion. The inactive portion of the memory can be swapped with an active portion of the memory, such that the inactive portion becomes active.Type: GrantFiled: August 10, 2010Date of Patent: May 16, 2017Assignee: SILVER SPRING NETWORKS, INC.Inventors: Kevin Deierling, Aditi Dubey, Alexander Gostrer, Kunal Pankaj Shah
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Patent number: 9263915Abstract: The service phase of the electrical connection to a customer endpoint device located within a power distribution system is determined by various techniques. At the feeder level, the system may be programmed to induce disturbances, thereby causing missed zero crossings at the customer endpoint devices. The pattern of these disturbances is a controlled one, designed specifically to avoid causing noticeable disruption even to sensitive devices, but to be unusual enough that it is statistically unlikely to be naturally occurring. The monitoring of the zero crossing information is used to determine the phase of the service line to the customer endpoint devices.Type: GrantFiled: May 25, 2012Date of Patent: February 16, 2016Assignee: SILVER SPRING NETWORKS, INC.Inventors: Raj Vaswani, Jana van Greunen, Alexander Gostrer
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Patent number: 8659440Abstract: Methods, systems, and devices for detecting when an end-device is physically disconnected from a commodity delivery network. One method includes determining an impedance of a power input of the end-device after the end-device experiences a power interruption, generating a message including data regarding the impedance, transmitting the message to a computer-implemented back office over at least one communication network, and automatically setting a status of the end-device to a physically-disconnected status when the data regarding the impedance indicates the impedance is greater than a threshold.Type: GrantFiled: December 21, 2011Date of Patent: February 25, 2014Assignee: Silver Spring Networks, Inc.Inventors: Alexander Gostrer, Winston Lew
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Patent number: 8484486Abstract: A system that provides a cryptographic unit that generates secret keys that are not directly accessible to software executed by a controller. The cryptographic unit can include a restrictor device, a finite state machine, a random number generator communicatively and a memory. The memory stores values generated by the random number generator. The restrictor device and the finite state machine include hardware logic that restricts access or changes to the contents of the memory.Type: GrantFiled: June 29, 2009Date of Patent: July 9, 2013Assignee: Silver Spring Networks, Inc.Inventors: Kevin Deierling, Raj Vaswani, Alexander Gostrer, Aditi Dubey
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Publication number: 20130162436Abstract: Methods, systems, and devices for detecting when an end-device is physically disconnected from a commodity delivery network. One method includes determining an impedance of a power input of the end-device after the end-device experiences a power interruption, generating a message including data regarding the impedance, transmitting the message to a computer-implemented back office over at least one communication network, and automatically setting a status of the end-device to a physically-disconnected status when the data regarding the impedance indicates the impedance is greater than a threshold.Type: ApplicationFiled: December 21, 2011Publication date: June 27, 2013Inventors: Alexander Gostrer, Winston Lew
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Publication number: 20120232844Abstract: The service phase of the electrical connection to a customer endpoint device located within a power distribution system is determined by various techniques. At the feeder level, the system may be programmed to induce disturbances, thereby causing missed zero crossings at the customer endpoint devices. The pattern of these disturbances is a controlled one, designed specifically to avoid causing noticeable disruption even to sensitive devices, but to be unusual enough that it is statistically unlikely to be naturally occurring. The monitoring of the zero crossing information is used to determine the phase of the service line to the customer endpoint devices.Type: ApplicationFiled: May 25, 2012Publication date: September 13, 2012Applicant: Silver Spring Networks, Inc.Inventors: Raj VASWANI, Jana van Greunen, Alexander Gostrer
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Patent number: 8207726Abstract: The service phase of the electrical connection to a customer endpoint device located within a power distribution system is determined by various techniques. At the feeder level, the system may be programmed to induce momentary power interruptions, thereby causing missed zero crossings at the customer endpoint devices. The pattern of these interruptions is a controlled one, designed specifically to avoid causing noticeable disruption even to sensitive devices, but to be unusual enough that it is statistically unlikely to be naturally occurring. The monitoring of the zero crossing information is used to determine the phase of the service line to the customer endpoint devices.Type: GrantFiled: May 27, 2009Date of Patent: June 26, 2012Assignee: Silver Spring Networks, Inc.Inventors: Raj Vaswani, Jana van Greunen, Alexander Gostrer
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Publication number: 20110040960Abstract: Devices and methods for securely upgrading devices, such as field upgradeable units, are disclosed. In response to receiving an update object, a device may determine whether a predefined location of memory includes a predetermined value. Based on the value in the predefined location, the device may store the received update object in a verification portion of the memory. After verifying the authenticity of the update object, the device may copy the update object from the verification portion of the memory to an inactive portion. The inactive portion of the memory can be swapped with an active portion of the memory, such that the inactive portion becomes active.Type: ApplicationFiled: August 10, 2010Publication date: February 17, 2011Applicant: SILVER SPRING NETWORKS, INC.Inventors: Kevin Deierling, Aditi Dubey, Alexander Gostrer, Kunal Pankaj Shah
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Publication number: 20100060259Abstract: The service phase of the electrical connection to a customer endpoint device located within a power distribution system is determined by various techniques. At the feeder level, the system may be programmed to induce momentary power interruptions, thereby causing missed zero crossings at the customer endpoint devices. The pattern of these interruptions is a controlled one, designed specifically to avoid causing noticeable disruption even to sensitive devices, but to be unusual enough that it is statistically unlikely to be naturally occurring. The monitoring of the zero crossing information is used to determine the phase of the service line to the customer endpoint devices.Type: ApplicationFiled: May 27, 2009Publication date: March 11, 2010Applicant: Silver Spring Networks, Inc.Inventors: Raj Vaswani, Jana van Greunen, Alexander Gostrer
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Publication number: 20100037069Abstract: A system that provides a cryptographic unit that generates secret keys that are not directly accessible to software executed by a controller. The cryptographic unit can include a restrictor device, a finite state machine, a random number generator communicatively and a memory. The memory stores values generated by the random number generator. The restrictor device and the finite state machine include hardware logic that restricts access or changes to the contents of the memory.Type: ApplicationFiled: June 29, 2009Publication date: February 11, 2010Applicant: Silver Spring Networks, Inc.Inventors: Kevin Deierling, Raj Vaswani, Alexander Gostrer, Aditi Dubey