Portable processing system with always on, always connected capability
First Claim
1. A portable processing device comprising:
- a processor;
a memory coupled to the processor;
a first communication unit coupled to the processor for receiving data over a first link having a first bandwidth, wherein the first link is a wireless link;
a second communication unit coupled to the processor for transmitting and receiving data over a second link having a second bandwidth substantially greater than the first bandwidth, wherein operation of the second communication device is automatically controllable based on data received by the first communication device over the first link a first power source to power the portable processing device excluding the first communication unit; and
a second power source to power only the first communication unit.
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Accused Products
Abstract
A technique for providing a portable processing system with “always on, always connected” capability is provided. The portable processing system is equipped with two data communication devices, either or both of which may be implemented on a PC Card. The first communication device is for receiving data over a wireless link over a narrowband link. The second communication device is for both receiving and transmitting data over a communication link over a wider band link, i.e., at a data rate that is substantially higher than that of the first communication device. The first communication device is always on, such that the narrowband link is always established. The second communication device may be activated only when data is to be transferred to or from the portable processing system, such that the wider band link is established only when it is needed. In one mode of operation the first communication device is used primarily to receive messages indicating that data is available for downloading to the portable processing system. When such data is available, the second communication device is used to download the data.
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Citations
38 Claims
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1. A portable processing device comprising:
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a processor;
a memory coupled to the processor;
a first communication unit coupled to the processor for receiving data over a first link having a first bandwidth, wherein the first link is a wireless link;
a second communication unit coupled to the processor for transmitting and receiving data over a second link having a second bandwidth substantially greater than the first bandwidth, wherein operation of the second communication device is automatically controllable based on data received by the first communication device over the first link a first power source to power the portable processing device excluding the first communication unit; and
a second power source to power only the first communication unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A circuit card for insertion into a portable processing system, the circuit card comprising:
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an interface for coupling the circuit card to the processing system;
a first communication unit coupled to the interface for receiving data over a first link at a first data rate, wherein the first link is a wireless link; and
a second communication unit coupled to the interface for transmitting and receiving data over a second link at a second data rate substantially greater than the first data rate, wherein activation of the second communication unit is controllable using the first communication unit, wherein the circuit card is configured for insertion through a corresponding permanent opening in a housing of the portable processing system to connect the interface to the processing system. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of providing communication between a portable processing system and a remote site, the method comprising:
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using a first communication device of the portable processing system to receive data at the portable processing system at a first data rate;
in response to receiving the data at the portable processing system at the first data rate, activating a second communication device of the portable processing system; and
using the second communication device to communicate data with the remote site at a second data rate substantially greater than the first data rate. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A communication device for providing data communication capability to a portable processing system, the communication device comprising:
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a receiver to receive data from a remote site over a wireless link at a first data rate;
a control unit to control operation of the communication device;
a power source to power the communication device; and
an interface to allow the communication device to be removably connected to the portable processing system;
wherein the communication device is capable of receiving said data at the first data rate while the communication device is disconnected from the portable processing system, and wherein the communication device is configured to determine, in response to receiving said data, that additional data is available for downloading to the portable processing system at a second data rate substantially higher than the first data rate. - View Dependent Claims (35, 36, 37, 38)
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Specification