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US 11,453,222 B2Granted
Liquid sensor package
AssigneeHewlett-Packard Development Company, L.P.
InventorsJames Michael Gardner, Sirena Lu, Frank D. Derryberry, Michael W. Cumbie
Life of this patent
Estimating the term…
Abstract
A liquid level sensor package for a replaceable print liquid reservoir, the package including a number of heater circuits, each heater circuit including a heater element to dissipate heat and a number of control devices, each control device individually controllable to be electrically connected to the heater element, the heater element to dissipate a different amount of heat when electrically connected to different ones of the control devices.
Claims23
A liquid sensor package, comprising:
- a number of heater circuits, each heater circuit including:
- a heater element to dissipate heat;
- and
- a number of control devices, each control device individually controllable to be electrically connected to the heater element, the heater element to dissipate a different amount of heat when electrically connected to different ones of the control devices.
1 more element
A liquid sensor package, the package comprising:
- a number of sensing zones, each sensing zone including:
- a heater circuit having a number of selectable power levels including:
- a heater element to generate heat;
- and
- a number of control devices, each control device individually controllable to be electrically connected to the heater element and each corresponding to a different one of the power levels, when electrically connected to the heater element, each control device to generate a different amount of heat and each heater element to dissipate a different amount of heat such that an amount of heat generated by the heater circuit, including the heat generated by the heater element and the heat generated by the control device, is different for each control device and heater combination;
- and
- an array of memory elements, each memory element corresponding to a respective one of the sensing zones, during a sensing operation, the array of memory elements to:
- serially load a segment of select bits, each select bit having one a select value and a non-select value, a memory element having a select value to select the heater circuit of the to be enabled to generate heat.
5 more elements
Dependencies are inferred from the claim text.