Swaminathan Balakrishnan

US Patent:

7933602, Apr 26, 2011

Filed:

Oct 2, 2007

Appl. No.:

11/865835

Inventors:

Swaminathan Balakrishnan - San Diego CA, US
Jason P. Sigg - Olathe KS, US
Ashish Bhan - Shawnee KS, US
Ajay Manghat - Overland Park KS, US

Assignee:

Sprint Spectrum L.P. - Overland Park KS

International Classification:

H04W 36/00
H04W 4/00
H04W 72/00

US Classification:

455437, 455436, 4554352, 4554522, 370332

Abstract:

A method and system for controlling the rate at which access terminals hand off from an IS-2000 (e. g. , 1RTT) communication system to an IS-856 (e. g. , EVDO) communication system. A base station determines metric indicative of the rate at which hybrid access terminals hand off to the IS-2000 from the IS-856 system, and then based at least in part on the metric, dynamically adjusts a dormancy period that at least one hybrid access terminal must wait before entering a dormant mode in which is looks for service under IS-856. As the rate-metric indicates a higher or lower rate, the system may responsively adjust the dormancy period down or up. The rate at which hybrid access terminals operating under IS-2000 may seek service under IS-856 may thus be tuned to the rate at which they hand of form IS-856 to IS-2000.

US Patent:

8147447, Apr 3, 2012

Filed:

Sep 17, 2008

Appl. No.:

12/678417

Inventors:

Satish Sundar - San Jose CA, US
Swaminathan Balakrishnan - Flower Mound TX, US
Ivan Melnyk - Coquitlam, CA

International Classification:

A61M 37/00

US Classification:

604 67, 604 65, 604253, 7386141, 128DIG 12, 128DIG 13

Abstract:

A controller for closed loop control of infusion devices is described. A variety of infusion systems are described that use the closed loop control architecture. In some embodiments the closed loop control may be adapted to current commonly used infusion means such as a gravity feed intravenous system. Other embodiments describe infusion pump system that use biasing or drive mechanisms of springs, elastomers, rotary and linear motors.

US Patent:

8147448, Apr 3, 2012

Filed:

Sep 17, 2008

Appl. No.:

12/678426

Inventors:

Satish Sundar - San Jose CA, US
Swaminathan Balakrishnan - Flower Mound TX, US
Ivan Melnyk - Coquitlam, CA

International Classification:

A61M 5/168
A61M 5/145

US Classification:

604 67, 604131, 604151

Abstract:

A system architecture for closed loop control of infusion devices is described. The architecture provides means to control the flow from an infusion device as well as in some embodiments the pressure of the delivery. A variety of infusion systems are described that use the closed loop control architecture. In some embodiments the closed loop control may be adapted to current commonly used infusion means such as a gravity feed intravenous system. Other embodiments describe infusion pump system that use biasing or drive mechanisms of springs, elastomers, rotary and linear motors.

US Patent:

20120329410, Dec 27, 2012

Filed:

Dec 7, 2011

Appl. No.:

13/314019

Inventors:

Swaminathan Balakrishnan - Sunnyvale CA, US
Reza Shahidi - San Diego CA, US
Ammar T. Kitabi - San Diego CA, US
Chintan S. Shah - San Diego CA, US
Louis A. Benavidez - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04B 1/04

US Classification:

4551271

Abstract:

Methods, devices, and apparatuses are provided for detecting that a temperature of at least a portion of a mobile device is above a mitigation threshold, adjusting transmit power, used on a first channel by said mobile device, by a first backoff amount during a first backoff interval, based, at least in part, on said detected temperature. Further included is suppressing a transmission during a response interval used on a second channel by said mobile device.

US Patent:

20130329556, Dec 12, 2013

Filed:

Jun 6, 2012

Appl. No.:

13/489606

Inventors:

Sarma V. R. K. V. Vangala - Santa Clara CA, US
Faraz Faheem - Santa Clara CA, US
Swaminathan Balakrishnan - Sunnyvale CA, US

Assignee:

APPLE INC. - Cupertino CA

International Classification:

H04L 12/26

US Classification:

370235

Abstract:

The disclosed embodiments provide a system that processes network packets on an electronic device. During operation, the system obtains, on the electronic device, an outgoing rate of the network packets from a network interface queue on the electronic device to a network link. Next, upon detecting a transmission of the network packets from an application on the electronic device to the network interface queue, the system uses the electronic device to allocate a proportion of the outgoing rate to the application based on a number of applications transmitting network packets from the electronic device to the network link. Finally, the system uses the allocated proportion of the outgoing rate and the network interface queue to transmit network packets from the application to the network link.

US Patent:

20140044046, Feb 13, 2014

Filed:

Aug 13, 2013

Appl. No.:

13/966203

Inventors:

Sreevalsan Vallath - Dublin CA, US
Swaminathan Balakrishnan - Sunnyvale CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

H04W 28/02

US Classification:

370328

Abstract:

A method for reducing packet loss during data transfer from a network to a wireless communication device over a connection is disclosed. The method can include the wireless communication device signaling a first receive window size for a data transfer; determining occurrence of an event resulting in an interruption of the connection; and, in response to determining occurrence of the event, signaling a second receive window size for the data transfer prior to the event to trigger an adjustment of a data rate of the data transfer in preparation for the event.

US Patent:

20140073307, Mar 13, 2014

Filed:

Nov 21, 2012

Appl. No.:

13/683959

Inventors:

Tahir Shamim - San Jose CA, US
Swaminathan Balakrishnan - Sunnyvale CA, US

Assignee:

APPLE INC. - Cupertino CA

International Classification:

H04W 80/00

US Classification:

455418

Abstract:

In order to reduce the time delay when transitioning between different communication protocols used to communicate information via a cellular-telephone network, an electronic device (such as a cellular telephone) may only partially disable a software stack associated with a current communication protocol. In particular, after receiving an indicator that there is a message to be communicated using a second communication protocol while the electronic device is currently configured to communicate using a first communication protocol, the electronic device may disable a portion of a software stack associated with the first communication protocol and may enable a software stack associated with the second communication protocol. Then, the electronic device communicates the message using the second communication protocol. Next, the electronic device: may disable the software stack associated with the second communication protocol and may enable the portion of the software stack associated with the first communication protocol.

US Patent:

20140080479, Mar 20, 2014

Filed:

Apr 10, 2013

Appl. No.:

13/860406

Inventors:

Apple Inc. - , US
Swaminathan Balakrishnan - Cupertino CA, US
Chandra S. Chetty - Cupertino CA, US
Viswanath Nagarajan - Cupertino CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

H04W 24/02
H04W 88/06

US Classification:

455424

Abstract:

Methods and apparatus for suspending session state during hybrid network operation. In one exemplary embodiment, a cellular device uses a single-radio solution to support circuit-switched calls on a CDMA 1× network and packet-switched calls on LTE. Periodically, the cellular device tunes away from LTE and monitors CDMA 1× activity, and vice versa. During these tuned-away periods, the client device may suspend operation on the tuned away network for extended tune away intervals.