Power saving in multi-processor device
First Claim
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1. A mobile computing device, comprising:
- a first microprocessor having a sleep mode and a wake mode;
a second microprocessor configured for wireless communication; and
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a communication port configured to communicate data from the second processor to the first processor, wherein the second processor is configured to provide a wake signal to the first microprocessor and the first microprocessor is configured to open the communication port in response to the wake signal and to receive data from the second microprocessor through the communication port.
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Abstract
A mobile computing device comprises a first microprocessor having a sleep mode and a wake mode and a second microprocessor configured for wireless communication. A communication port is configured to communicate data from the second processor to the first processor, wherein the second processor is configured to provide a wake signal to the first microprocessor and the first microprocessor is configured to open the communication port in response to the wake signal and to receive data from the second microprocessor through the communication port.
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Citations
19 Claims
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1. A mobile computing device, comprising:
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a first microprocessor having a sleep mode and a wake mode;
a second microprocessor configured for wireless communication; and
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a communication port configured to communicate data from the second processor to the first processor, wherein the second processor is configured to provide a wake signal to the first microprocessor and the first microprocessor is configured to open the communication port in response to the wake signal and to receive data from the second microprocessor through the communication port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile computing device, comprising:
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a first microprocessor configured to operate a plurality of applications and having a sleep mode and a wake mode;
a second microprocessor configured to provide wireless communication over a network;
a universal serial bus; and
a universal serial bus controller having on, off and suspend states, the universal serial bus controller coupled to the first microprocessor and configured to provide universal serial bus communication with the second microprocessor, wherein after processing a message on the universal serial bus, the universal serial bus controller is configured to enter the off state while the first processor is in a sleep state. - View Dependent Claims (12, 13)
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14. A mobile computing device for communicating with a network, the network of a type configured to release a channel of communication with a device after expiration of a timer, comprising:
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a first microprocessor configured to operate a plurality of applications; and
a second microprocessor configured to provide wireless communication over the network, wherein the second microprocessor has a sleep mode and a wake mode, wherein the second microprocessor is configured to enter the sleep mode before expiration of the timer. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification