Apparatus and method for reducing receiver frequency errors
AssigneeMarvell World Trade Ltd.
InventorDavid Ben-Eli
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Abstract
A method includes, in a receiver that includes an uncompensated crystal oscillator, receiving signals from a transmitter by activating the receiver periodically at intervals corresponding to a specified wake-up time period. In response to detecting at the receiver that the specified wake-up time period is insufficient for maintaining synchronization between the receiver and the transmitter using the uncompensated crystal oscillator, an actual wake-up time period, smaller than the specified wake-up time period, is selected. The receiver is activated periodically according to the selected actual wake-up time period.
Claims20
A method, comprising:
- in a receiver that includes an uncompensated crystal oscillator, receiving signals from a transmitter by activating the receiver periodically at intervals corresponding to a specified wake-up time period;
- in response to detecting at the receiver that the specified wake-up time period is insufficient for maintaining synchronization between the receiver and the transmitter using the uncompensated crystal oscillator, selecting an actual wake-up time period that is smaller than the specified wake-up time period;
- and
- activating the receiver periodically according to the selected actual wake-up time period.
Apparatus, comprising:
- a receiver, which comprises an uncompensated crystal oscillator and which is configured to receive signals from a transmitter;
- and
- control circuitry, which is configured to activate the receiver periodically at intervals corresponding to a specified wake-up time period, and, in response to detecting that the specified wake-up time period is insufficient for maintaining synchronization between the receiver and the transmitter using the uncompensated crystal oscillator, to select an actual wake-up time period that is smaller than the specified wake-up time period and to activate the receiver periodically according to the selected actual wake-up time period.
Dependencies are inferred from the claim text.