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US 8,712,363 B2Granted
Power-saving receiver
AssigneeCambridge Silicon Radio Limited
InventorSteven Mark Singer
Life of this patent
Estimating the term…
Abstract
A signal receiver capable of operating in two modes: a normal mode for reception and decoding of signals and a detection mode for detecting the presence of signals, the signal receiver having: a functional unit that can operate in two manners: a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and a controller for causing the functional unit to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode.
Claims19
A signal receiver capable of operating in two modes:
- a normal mode for reception and decoding of signals and a detection mode for detecting the presence of signals, the signal receiver having:
- at least a power supply that can operate in two manners:
- a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and
- a controller for causing said clock, power supply or filter to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode;
- wherein said power supply comprises two components each capable of providing the function of the power supply, the first of the components providing the function in the first manner, having relatively low power consumption and relatively poor stability, and the second of the components providing the function in the second manner, having relatively high power consumption and relatively high stability;
- wherein only said first of the components is operational when the receiver is in its detection mode.
3 more elements
A signal receiver capable of operating in two modes:
- a normal mode for reception and decoding of signals and a detection mode for detecting the presence of signals, the signal receiver having:
- a clock that can operate in two manners:
- a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and
- a controller for causing said clock to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode, the signal receiver further having:
- at least one of a power supply and a filter that can operate in two manners:
- a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and
- said controller causing said power supply or filter to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode;
- wherein said power supply comprises two components each capable of providing the function of the power supply, the first of the components, providing the function in the first manner, having relatively low power consumption and relatively poor stability and the second of the components, providing the function in the second manner, having relatively high power consumption and relatively high stability;
- wherein only said first of the components is operational when the receiver is in its detection mode.
6 more elements
A signal receiver capable of operating in two modes:
- a normal mode for reception and decoding of signals and a detection mode for detecting the presence of signals, the signal receiver having:
- a filter that can operate in two manners:
- a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and
- a controller for causing said filter to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode, the signal receiver further having:
- at least one of a power supply and a clock that can operate in two manners:
- a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and
- said controller causing said power supply or clock to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode;
- wherein said power supply comprises two components each capable of providing the function of the power supply, the first of the components providing the function in the first manner having relatively low power consumption and relatively poor stability, and the second of the components providing the function in the second manner having relatively high power consumption and relatively high stability;
- wherein only the said first of the components is operational when the receiver is in its detection mode.
6 more elements
A signal receiver capable of operating in two modes:
- a normal mode for reception and decoding of signals and a detection mode for detecting the presence of signals, the signal receiver having:
- a filter that can operate in two manners:
- a first manner having relatively low power consumption and relatively poor accuracy and a second manner having relatively high power consumption and relatively high accuracy, and
- a controller for causing said filter to operate in the first manner when the receiver is in its detection mode and in the second manner when the receiver is in its normal mode, wherein said filter comprises two components each capable of providing the function of the filter, the first of the components providing the function in the first manner having relatively low power consumption and relatively poor accuracy, and the second of the components providing the function in the second manner having relatively high power consumption and relatively high accuracy;
- wherein only the said first of the components is operational when the receiver is in its detection mode.
2 more elements
Dependencies are inferred from the claim text.