System and method for dynamic voltage scaling in a GPS receiver

Details System and method for dynamic voltage scaling in a GPS receiver System and method for dynamic voltage scaling in a GPS receiver

2011-08-30

2011-08-30

Tarcza, Thomas (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

Reexamination Certificate

active

08009090

ABSTRACT:
Systems and methods are disclosed herein to dynamically vary supply voltages and clock frequencies, also known as dynamic voltage scaling (DVS), in GPS receivers to minimize receiver power consumption while meeting performance requirements. For the baseband circuitry performing satellite acquisition and tracking, supply voltages and clock frequencies to the baseband circuitry are dynamically adjusted as a function of signal processing requirements and operating conditions for reducing baseband power consumption. Similarly, the supply voltage and clock frequency to the processor running navigation software and event processing are dynamically adjusted as a function of navigation performance requirements and event occurrences to reduce processor power consumption.

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Luca Benini and Giovanni De Micheli, “System-Level Power Optimization: Techniques and Tool”; ACM Transaction on Design Automation of Electronic Systems, vol. 5, No. 2, Apr. 2000, pp. 115-192.
Thomas D. Burd and Robert W. Brodersen, “Design Issues for Dynamic Voltage Scaling”; ISLPED 2000, Rapallo, Italy; ACM 1-58113-190-9/00/0008.

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