REDUCED POWER CONSUMPTION METHOD FOR SAMPLING PARAMETERS WITHIN A TPMS
First Claim
1. An apparatus for measuring parameter values from an electrical input signal, the apparatus comprisinga signal sampling device operable to sample said input signal and to produce a corresponding output comprising a measured parameter value;
- a signal level detector configured to detect changes in the level of said input signal by more than a threshold amount; and
a controller co-operable with said signal sampling device and said signal level detector and being configured to operate said signal sampling device to sample said input signal in response to said signal level detector detecting a change in said input signal level by more than said threshold amount.
1 Assignment
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Accused Products
Abstract
An apparatus for measuring parameter values from an electrical input signal comprises a signal sampling device operable to sample said input signal and to produce a corresponding output comprising a measured parameter value; a signal level detector configured to detect changes in the level of the input signal by more than a threshold amount; and a controller co-operable with the signal sampling device and the signal level detector. The controller is configured to operate the signal sampling device to sample the input signal in response to the signal level detector detecting a change in the input signal level by more than the threshold amount.
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Citations
28 Claims
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1. An apparatus for measuring parameter values from an electrical input signal, the apparatus comprising
a signal sampling device operable to sample said input signal and to produce a corresponding output comprising a measured parameter value; -
a signal level detector configured to detect changes in the level of said input signal by more than a threshold amount; and a controller co-operable with said signal sampling device and said signal level detector and being configured to operate said signal sampling device to sample said input signal in response to said signal level detector detecting a change in said input signal level by more than said threshold amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A tire monitoring apparatus comprising and apparatus for measuring parameter values from an electrical input signal, the apparatus comprising.
a signal sampling device operable to sample said input signal and to produce a corresponding output comprising a measured parameter value; -
a signal level detector configured to detect changes in the level of said input signal by more than a threshold amount; and a controller co-operable with said signal sampling device and said signal level detector and being configured to operate said signal sampling device to sample said input signal in response to said signal level detector detecting a change in said input signal level by more than said threshold amount. - View Dependent Claims (26)
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27. (canceled)
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28. A method of measuring parameter values from an electrical input signal, the method comprising:
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detecting changes in the level of said input signal by more than a threshold amount; and operating a signal sampling device to sample said input signal in response to said signal level detector detecting a change in said input signal level by more than said threshold amount.
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Specification