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US 6,674,821 B1Granted
Method and apparatus for reducing power consumption
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorSven Mejyr
Life of this patent
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AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorSven Mejyr
Estimating the term…
An arrangement for clock control in a device receiving a clock from an external source includes a switching device for switching an external clock through to the device as an internal clock, and clock request generation devices, adapted to switch clock signals through to the external clock controller as requests for suppressing and restarting the external clock. Control devices are provided in the form of a state machine to control the generation of the internal clock through the switching device and to control the clock request generation device in accordance with a predetermined state of two signals, one generated internally by the device, the other by the external clock controller. The clock request generation devices are also coupled to a clock start module adapted to receive several input signals for signaling an event requiring the clocked operation of the device.
A clock control arrangement for a device adapted to receive a clock signal from an external source, said device comprising means adapted to receive at least one input signal indicative of an event requiring synchronized operation of said device, said arrangement including
An apparatus comprising:
A method of controlling a clock in a device adapted to receive an external clock from an external clock source and to generate an internal clock from said external clock, the method including the steps of:
A method of controlling a clock supplied to a device by an external source, including
Dependencies are inferred from the claim text.