Patents by Inventor Vladimir Parizhsky
Vladimir Parizhsky 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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Patent number: 8983468Abstract: Methods and apparatus for routing messages between an end node and an access node via another access node are described. Physical layer identification information is used when identifying a remote, e.g., adjacent, access node as a message destination. Thus, when a connection identifier based on one or more physical layer identifiers is available to a wireless terminal, e.g., from one or more downlink signals received from a destination access node, the wireless terminal can use the connection identifier corresponding to the destination node to route a message via an access node with which it has an established uplink connection. Such connection identifier information can be used even when other addressing information, e.g., network layer address information, associated with the destination access node, may not be available to the wireless terminal.Type: GrantFiled: December 22, 2005Date of Patent: March 17, 2015Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Pablo Anigstein, Vladimir Parizhsky, Murari Srinivasan, George Tsirtsis
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Patent number: 8849352Abstract: Systems and methodologies are described that facilitate supporting multiple connections associated with a wireless terminal. Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base station(s). Additionally, the multiple connections may be evaluated and a preferred connection from the set of multiple connections may be utilized to transfer data to the wireless terminal over a downlink connection.Type: GrantFiled: January 24, 2011Date of Patent: September 30, 2014Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Das Arnab, Murari Srinivasan, Pablo Anigstein, Vladimir Parizhsky, M. Scott Corson
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Patent number: 8832211Abstract: Methods and apparatus for numbering messages between a client, e.g., trader system, and exchange system are described. Client device (e.g., trader system) to exchange message numbering and exchange system to client device message numbering is supported and used. As part of each successful login, a client device is provided with a client to exchange system number to be used for first transaction message sent to the system after login. The first message from the client device is checked to make sure the number sent to the client device was used in the message. This approach places the burden on the client device, e.g., trader's system, not to send old messages with the new number. Messages from the exchange to the trader system are also numbered. Messages may include a field used to communicate information provided by a trader which is not interpreted by or used by the exchange system.Type: GrantFiled: November 4, 2011Date of Patent: September 9, 2014Assignee: NYSE ARCA LLCInventors: Alexei Lebedev, Vladimir Parizhsky
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Publication number: 20140233449Abstract: Systems and methodologies are described that facilitate supporting multiple connections associated with a wireless terminal. Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base station(s). Additionally, the multiple connections may be evaluated and a preferred connection from the set of multiple connections may be utilized to transfer data to the wireless terminal over a downlink connection.Type: ApplicationFiled: April 23, 2014Publication date: August 21, 2014Applicant: QUALCOMM IncorporatedInventors: Rajiv Laroia, Arnab Das, Murari Srinivasan, Pablo Alejandro Anigstein, Vladimir Parizhsky, Mathew Scott Corson
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Patent number: 8649264Abstract: Systems and methodologies are described that facilitate assigning a flow (e.g., IP flow) to a wireless network link from a bundle that includes a plurality of wireless network links. Assignments can be based upon characteristics associated with the flow and characteristics associated with the links. For example, a service class corresponding to the flow can be evaluated to determine flow related characteristics. Moreover, link related feedback can be analyzed to determine characteristics of the links.Type: GrantFiled: April 3, 2007Date of Patent: February 11, 2014Assignee: QUALCOMM IncorporatedInventors: Vladimir Parizhsky, Richard J. Dynarski, Rajiv Laroia
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Publication number: 20130301546Abstract: Methods and apparatus for improved utilization of air link resources are discussed in wireless communications systems employing multi-sector base stations and wireless terminals with multiple antennas. Timing synchronization is maintained across the base station sectors, and the same set of tones are used in adjacent sectors. In a sector boundary region, which is typically a high interference region, a wireless terminal is set to a sector pair state and operated in a MIMO mode of operation, communicating with two adjacent base station antenna faces of the same base station concurrently, the two different adjacent base station antenna faces corresponding to different adjacent sectors. Thus, typically high interference sector boundary regions, are converted into high capacity regions by having the sectors coordinated and utilizing MIMO techniques.Type: ApplicationFiled: November 2, 2012Publication date: November 14, 2013Inventors: Thomas J. Richardson, Vladimir Parizhsky
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Publication number: 20130301436Abstract: Methods and apparatus for improved utilization of air link resources are discussed in wireless communications systems employing multi-sector base stations and wireless terminals with multiple antennas. Timing synchronization is maintained across the base station sectors, and the same set of tones are used in adjacent sectors. In a sector boundary region, which is typically a high interference region, a wireless terminal is set to a sector pair state and operated in a MIMO mode of operation, communicating with two adjacent base station antenna faces of the same base station concurrently, the two different adjacent base station antenna faces corresponding to different adjacent sectors. Thus, typically high interference sector boundary regions, are converted into high capacity regions by having the sectors coordinated and utilizing MIMO techniques.Type: ApplicationFiled: November 2, 2012Publication date: November 14, 2013Inventors: Thomas J. Richardson, Vladimir Parizhsky
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Patent number: 8417282Abstract: Wireless communications methods and apparatus for a device using multiple antennas are described. A first wireless communications device receives signals from a second communications device. The first device generates receiver interference estimates corresponding to different antennas and selects one antenna to receive signals from the second device, as a function of the generated receiver interference estimates. The first device receives signals from one or more additional devices to which first device transmission may cause interference. The first device generates transmitter interference estimates corresponding to different antennas and selects one antenna to transmit signals to the second device as a function of the generated transmitter interference estimates. The first device may, and sometimes does, select different receive and transmit antennas for communicating with the second device.Type: GrantFiled: June 25, 2009Date of Patent: April 9, 2013Assignee: QUALCOMM IncorporatedInventors: Vladimir Parizhsky, Junyi Li, Rajiv Laroia
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Patent number: 8326365Abstract: Methods and apparatus for improved utilization of air link resources are discussed in wireless communications systems employing multi-sector base stations and wireless terminals with multiple antennas. Timing synchronization is maintained across the base station sectors, and the same set of tones are used in adjacent sectors. In a sector boundary region, which is typically a high interference region, a wireless terminal is set to a sector pair state and operated in a MIMO mode of operation, communicating with two adjacent base station antenna faces of the same base station concurrently, the two different adjacent base station antenna faces corresponding to different adjacent sectors. Thus, typically high interference sector boundary regions, are converted into high capacity regions by having the sectors coordinated and utilizing MIMO techniques.Type: GrantFiled: October 31, 2007Date of Patent: December 4, 2012Assignee: QUALCOMM IncorporatedInventors: Thomas Richardson, Vladimir Parizhsky
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Patent number: 8274994Abstract: Methods and a gateway apparatus for facilitating communication between communications devices which support different communications protocols are described. The gateway device may receive an identifier of interest from a first device which supports a first communications protocol but not a second communications protocol. The gateway monitors signals corresponding to the second communications protocol to detect signals corresponding to the identifier of interest. An externally perceivable alert is generated by the gateway device when a signal corresponding to the identifier of interest is detected. Communications is established between the first communications device and a second communications device with the gateway device performing protocol conversion to the extent required. The first device may power down its interface after sending the identifier of interest to the gateway and then power up the interface in response to sensing of the alert or input from a user responding to the alert.Type: GrantFiled: June 19, 2009Date of Patent: September 25, 2012Assignee: QUALCOMM IncorporatedInventors: Richard Dynarski, Vladimir Parizhsky
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Publication number: 20120087312Abstract: Methods and apparatus for using end nodes, e.g., wireless terminals, to discover base stations and communicate information about discovered access nodes, e.g., base stations, to other access nodes in a system are described. As the wireless terminal roams in the system and new access nodes are encountered, one or more physically adjacent access nodes will be informed of the presence of the new access node as a result of communications with the wireless terminal. A message indicating an access node's inability to route a message to another access node which is known to a wireless terminal may trigger the wireless terminal to begin the process of updating access node routing and neighbor information.Type: ApplicationFiled: December 20, 2011Publication date: April 12, 2012Applicant: QUALCOMM INCORPORATEDInventors: Rajiv LAROIA, Pablo Anigstein, David R. Mazik, Vladimir Parizhsky, Vincent Park, Murari Srinivasan, George Tsirtsis
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Patent number: 8107565Abstract: Techniques for performing automatic gain control (AGC) at a receiver are described. The receiver may receive an OFDM-based symbol composed of a cyclic prefix and a useful portion. The receiver may scale the OFDM-based symbol with an initial receiver gain, adjust the initial receiver gain based on the cyclic prefix, apply the adjusted receiver gain prior to the useful portion, and process the useful portion to recover at least one signal sent by at least one transmitter. The receiver may select the initial receiver gain, e.g., based on a predicted received power level for the at least one transmitter, a pattern of different receiver gains, etc. The receiver may apply the initial receiver gain at the start of the OFDM-based symbol. The receiver may measure the power of a set of samples in the cyclic prefix and may adjust the receiver gain based on the measured power and a target power.Type: GrantFiled: January 28, 2009Date of Patent: January 31, 2012Assignee: QUALCOMM IncorporatedInventors: Junyi Li, Vladimir Parizhsky, Frank A. Lane, Aleksandar Jovicic, Ying Wang
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Patent number: 8036672Abstract: Methods and apparatus of efficient communication of resource allocation are described. A base station transmits a resource assignment message, e.g., a state transition message, to a wireless terminal including a first part, e.g., a base station assigned wireless terminal On state identifier, identifying a resource being assigned and a second part, e.g., an ON state mask, identifying a portion of the resource allocated to the wireless terminal. The same resource allocation message information also communicates one of a plurality of different modes of commanded On state operation. The resource allocation message structure supports flexible allocation of available resources facilitating a resource to be partitioned differently at different times accommodating current needs.Type: GrantFiled: July 14, 2006Date of Patent: October 11, 2011Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Vladimir Parizhsky, Junyi Li, Sathyadev Venkata Uppala
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Patent number: 7969858Abstract: More efficient utilization of available bandwidth is implemented in an OFDM wireless communication system. The partitions of bandwidth may be of different sizes and may be different from the original system design parameters. Basic system structure such as the number of tones used and the number of OFDM symbol times in a slot is maintained throughout the system. Bandwidth is varied by adjusting the inter-tone spacing or bandwidth associated with a single tone. As the inter-tone spacing is increased, the OFDM symbol transmission time is decreased following an inverse proportional relationship.Type: GrantFiled: October 11, 2005Date of Patent: June 28, 2011Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Junyi Li, Vladimir Parizhsky
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Patent number: 7953417Abstract: Methods and apparatus for maintaining, selecting and indicating a preferred communications link with an access node, e.g., base station, are described.Type: GrantFiled: November 4, 2005Date of Patent: May 31, 2011Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Pablo Anigstein, Arnab Das, Vladimir Parizhsky, Murari Srinivasan
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Publication number: 20110122821Abstract: Systems and methodologies are described that facilitate supporting multiple connections associated with a wireless terminal. Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base station(s). Additionally, the multiple connections may be evaluated and a preferred connection from the set of multiple connections may be utilized to transfer data to the wireless terminal over a downlink connection.Type: ApplicationFiled: January 24, 2011Publication date: May 26, 2011Applicant: QUALCOMM INCORPORATEDInventors: Rajiv Laroia, Das Arnab, Murari Srinivasan, Pablo Anigstein, Vladimir Parizhsky, M. Scott Corson
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Patent number: 7941173Abstract: Improved beacon signaling methods are described. Beacon signals are transmitted on the same tone in at least two consecutive symbol periods facilitating accurate energy measurements over a symbol period even if timing synchronization with the transmitter is not maintained. A low power wideband signal is also combined with the beacon signal to facilitate channel estimation and other operations such as timing synchronization operations.Type: GrantFiled: October 14, 2005Date of Patent: May 10, 2011Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Vladimir Parizhsky, Junyi Li, Sathyadev Venkata Uppala
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Patent number: 7899495Abstract: Systems and methodologies are described that facilitate supporting multiple connections associated with a wireless terminal. Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base station(s). Additionally, the multiple connections may be evaluated and a preferred connection from the set of multiple connections may be utilized to transfer data to the wireless terminal over a downlink connection.Type: GrantFiled: July 14, 2006Date of Patent: March 1, 2011Assignee: Qualcomm IncorporatedInventors: Rajiv Laroia, Das Arnab, Murari Srinivasan, Pablo Anigstein, Vladimir Parizhsky, M. Scott Corson
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Patent number: 7881345Abstract: Symbol timing synchronization in OFDM communication systems where multiple wireless terminals communicate with a single base station is described. Base station transmitter and receiver symbol timing is fixed. Each wireless terminal operates to independently adjust its transmitter timing. Transmitter timing synchronization at the wireless terminal is slaved to the terminal's receiver timing synchronization. Each wireless terminal first corrects its receiver symbol timing based on a signal received from the base station. The wireless terminal then adjusts its transmitter symbol timing as a function of its receiver symbol timing. When the receiver symbol timing is to be advanced or delayed by some amount, the transmitter symbol timing is also advanced or delayed, respectively, by the same, or substantially the same, amount. Symbol timing adjustment can be made by adding or deleting digital samples from the first or last symbol in a dwell.Type: GrantFiled: February 13, 2007Date of Patent: February 1, 2011Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Junyi Li, Vladimir Parizhsky
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Publication number: 20100330915Abstract: Wireless communications methods and apparatus for a device using multiple antennas are described. A first wireless communications device receives signals from a second communications device. The first device generates receiver interference estimates corresponding to different antennas and selects one antenna to receive signals from the second device, as a function of the generated receiver interference estimates. The first device receives signals from one or more additional devices to which first device transmission may cause interference. The first device generates transmitter interference estimates corresponding to different antennas and selects one antenna to transmit signals to the second device as a function of the generated transmitter interference estimates. The first device may, and sometimes does, select different receive and transmit antennas for communicating with the second device.Type: ApplicationFiled: June 25, 2009Publication date: December 30, 2010Applicant: QUALCOMM IncorporatedInventors: Vladimir Parizhsky, Junyi Li, Rajiv Laroia