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US 7,460,024 B1Granted
Active sensor circuitry for operating at low power and low duty cycle while monitoring occurrence of anticipated event
AssigneeNational Semiconductor Corporation
InventorsWei Ma, Ahmad Bahai
Life of this patent
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Abstract
Active sensor circuitry for operating at low power and a low duty cycle while monitoring for an occurrence of an anticipated event.
Claims11
An apparatus including active sensor circuitry for operating at low power and a low duty cycle while monitoring for an occurrence of an anticipated event, comprising:
- early event detection circuitry responsive to external environmental stimuli and one or more control signals by providing a corresponding detected data signal indicative of whether at least a portion of said stimuli is related to an anticipated event, and including
- a transducer responsive to said stimuli by providing a corresponding transducer signal, and
- detection circuitry coupled to said transducer and responsive to said transducer signal and at least one of said one or more control signals by providing an intermediate signal and said detected data signal;
- and
- control circuitry coupled to said early event detection circuitry and responsive to said intermediate signal by providing said one or more control signals.
2 more elements
An apparatus including active sensor circuitry for operating at low power and a low duty cycle while monitoring for an occurrence of an anticipated event, comprising:
- early event detector means for receiving external environmental stimuli and one or more control signals, and in response thereto providing a corresponding detected data signal indicative of whether at least a portion of said stimuli is related to an anticipated event, and including
- transducer means for receiving said stimuli and in response thereto providing a corresponding transducer signal, and
- detector means for receiving said transducer signal and at least one of said one or more control signals, and in response thereto providing an intermediate signal and said detected data signal;
- and
- controller means for receiving said intermediate signal and in response thereto providing said one or more control signals.
2 more elements
Dependencies are inferred from the claim text.