Qualcomm Incorporated

Powergenix Systems, Inc.

James J Wu

Ming-Chang Tsai

Jeffrey Owen Phillips

Bryan L McKinney

Samaresh Mohanta

Deepan Chakkaravarthi Bose

Pillappakkam Bahukutumbi Srinivas

Cecilia Maske

Vinayak N Chowdiah

Brian Schroeter

Cecelia Maske

Steve Salamon

Todd F Tatar

Ric Senior

Brian M Schroeter

Active material for a negative electrode of a rechargeable zinc alkaline electrochemical cell is made with zinc metal particles coated with tin and/or lead. The zinc particles may be coated by adding lead and tin salts to a slurry containing zinc particles, a thickening agent and water. The remaining zinc electrode constituents such as zinc oxide (ZnO), bismuth oxide (BiO), a dispersing agent, and a binding agent such as Teflon are then added. The resulting slurry/paste has a stable viscosity and is easy to work with during manufacture of the zinc electrode. Further, the zinc electrode is much less prone to gassing when cobalt is present in the electrolyte. Cells manufactured from electrodes produced in accordance with this invention exhibit much less hydrogen gassing, by as much as 60-80%, than conventional cells. The cycle life and shelf life of the cells is also enhanced, as the zinc conductive matrix remains intact and shelf discharge is reduced.

Pasted zinc electrode for rechargeable nickel-zinc batteries

Embodiments are described in terms of selective methods of sealing separators and jellyroll electrode assemblies and cells made using such methods. More particularly, methods of selectively heat sealing separators to encapsulate one of two electrodes for nickel-zinc rechargeable cells having jellyroll assemblies are described. Selective heat sealing may be applied to both ends of a jellyroll electrode assembly in order to selectively seal one of two electrodes on each end of the jellyroll.

Method of selectively heat sealing separators for nickel zinc cells

Techniques for dynamically managing receiver resources to achieve good latency and throughput performance are described. A receiver may have various types of receiver resources such as demod resources for demodulating packets, decode resources for decoding packets, packet processing resources, etc. These various types of receiver resources may be dynamically assigned to packets. In one design, receiver resource usage by each packet to be processed by the receiver may be estimated. The available receiver resources may be assigned to packets based on the estimated receiver resource usage by each packet and one or more assignment criteria such as priority, latency requirements, etc. The latency of each packet may be determined based on the receiver resource assignment. If the latency requirements of any packet are not met, then receiver processing may be skipped or deferred for one or more packets such that the latency requirements of each packet to be processed can be met.

Dynamic management of receiver resources

Systems and methodologies are described that facilitate reliably receiving a sequence of data packets in a wireless communications environment. In particular, mechanisms are provided that enhance hybrid automatic repeat request protocols through validation of acknowledgment message detection by re-decoding. A transmitter sends a data packet from a sequence of packets in one or more data transmissions. A receiver acknowledges the data packet upon obtaining sufficient transmissions to decode the packet. The receiver re-decodes a successive data transmission in combination with previously received transmissions to validate if the transmitter detected the acknowledgment.

H-ARQ acknowledgment detection validation by re-decoding

Systems and methodologies are described that facilitate data throughput optimization in a receiver through prioritized decoding of data transmissions. In particular, mechanisms are provided that assign priorities to obtained packets and/or sub-packets of a data transmission. The priorities can be assigned based at least upon prioritization rules that identify packets and/or sub-packets most likely to successfully decode. The obtained packets and/or sub-packets are decoded based upon the assigned priorities.

H-ARQ throughput optimization by prioritized decoding

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San Diego, CA, United States of America

James J Wu