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Power management in a mobile device

A mobile device, processor technology, applied in power management, electrical components, advanced technology, etc., can solve the problems of limited number, slow read/write time, and difficult system designers

Active Publication Date: 2015-01-28
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While flash memory has advantages in its ability to maintain its contents without power being applied, it may have slower read / write times than volatile RAM
Also, there may be limitations on the number of write operations that can be performed on flash memory
[0006] Thus, given the aforementioned conventional memory technologies, system designers may struggle to make a trade-off between mobile device performance and energy efficiency, even during the mobile device's sleep phase

Method used

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Embodiment Construction

[0017] Aspects of the invention are disclosed in the following description and related drawings for specific embodiments of the invention. Alternative embodiments may be designed without departing from the scope of the invention. In addition, well-known elements of the present invention will not be described in detail or omitted so as not to obscure the relevant details of the present invention.

[0018] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily construed as preferable or advantageous over other embodiments. Likewise, the term "embodiments of the invention" does not require that all embodiments of the invention include the discussed feature, advantage or mode of operation.

[0019] The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used herein, unless the c...

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Abstract

Apparatuses, systems and methods for reducing power consumption during standby operation of a mobile device are disclosed. A page decoding algorithm can be stored in nonvolatile memory during standby. The page decoding algorithm can be executed from the nonvolatile memory, when the mobile device is awakened from a sleep state to determine if there is any activity such as an incoming call. No power is required for the nonvolatile memory to maintain storage of the algorithm so that the power requirement during standby of the mobile device is reduced.

Description

Technical field [0001] Embodiments of the invention relate to improving battery life. More specifically, the embodiments of the present invention relate to a structure that reduces the average current used during the standby operation to improve the battery life of the mobile device. In one embodiment, the structure in the mobile device may incorporate magnetoresistive random access memory (MRAM) to store program data during the waiting period. Background technique [0002] With a large and increasing number of functions to be performed by mobile devices, there is increasing emphasis on battery life. In addition to the ability to increase battery production and maintain a sustainable long life, there is also increasing attention to the ability of mobile devices to reduce total current consumption requirements (not only during actual operation of the mobile device but also during stationary states). Mobile devices should be able to quickly respond to calls, messages, or other in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W68/00H04W52/02
CPCH04W52/0274H04W52/0209H04W68/00Y02B60/50Y02D30/70H04W52/02H04W88/02
Inventor 马克·史提灵·卡斯基
Owner QUALCOMM INC