System for reducing power consumption in a local oscillator
OwnerJeffrey Anderson, Jeffrey Zachan +1inventors
InventorsJeffrey Anderson, Jeffrey Zachan, Geoffrey Hatcher
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Abstract
A system for reducing power consumption of a local oscillator (LO) chain is disclosed. Embodiments of the system for reducing power consumption of a local oscillator chain include adjusting a bias control signal to the local oscillator depending on a noise parameter of the local oscillator. In one embodiment, the measured receive signal level is analyzed to derive an appropriate local oscillator bias control signal, which minimizes power consumption in the local oscillator.
Claims22
A local oscillator (LO) chain bias control system, comprising:
- means for adjusting a bias control signal to a local oscillator (LO) depending on a noise parameter of the local oscillator.
A method for controlling the bias power supplied to a local oscillator (LO) chain, comprising:
- adjusting a bias control signal to a local oscillator (LO) depending on a noise parameter of the local oscillator.
A system for controlling the bias power supplied to a local oscillator (LO) chain located in a portable communication device, comprising:
- a portable communication device including a transmitter and a receiver;
- a receive signal strength determination element located in the receiver;
- and
- an LO power control element responsive to the receive signal strength determination element, the LO power control element configured to supply a bias control signal to a local oscillator, the bias control signal level determined by the relative signal strength of the receive signal.
A local oscillator (LO) controller, comprising an LO power control element responsive to a receive signal strength determination element, the LO power control element configured to supply a bias control signal to a local oscillator, the bias control signal level determined by the relative strength of the receive signal.
Dependencies are inferred from the claim text.