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Paramétrages

Paramétrages

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1. WO2020162923 - PARAMÈTRE D'ÉMULATION D'UNE FILIÈRE D'ÉJECTION DE FLUIDE

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[ EN ]

CLAIMS

1. An integrated circuit comprising:

thermal tracking logic to determine a temperature of a fluid ejection die; control logic to define an emulated parameter of the fluid ejection die as a function of the temperature of the fluid ejection die, and

an output interface to output the emulated parameter to a printer system based on the function and the temperature of the fluid ejection die.

2. The integrated circuit of claim 1 , wherein the thermal tracking logic is to measure the temperature of the fluid ejection die.

3. The integrated circuit of claim 1 , wherein the thermal tracking logic is to estimate the temperature of the fluid ejection die based on a thermal model.

4. The integrated circuit of claim 1 , furthering comprising:

an input interface to measure a parameter of the fluid ejection die to be emulated,

wherein the control logic is to modify the measured parameter based on the temperature of the fluid ejection die to define the emulated parameter as the function of the temperature of the fluid ejection die.

5. The integrated circuit of claim 4, further comprising:

a control interface;

a plurality of input interfaces; and

a multiplexer to select one of the plurality of input interfaces based on a control signal on the control interface.

6. The integrated circuit of claim 1 , wherein the emulated parameter comprises a resistance, a voltage, or a current.

7. The integrated circuit of claim 1 , further comprising:

a voltage mode digital to analog converter, a current mode digital to analog converter, a transconductance amplifier, or a digital potentiometer to output the emulated parameter on the output interface.

8. The integrated circuit of claim 1 , further comprising:

a control interface; and

a multiplexer to output one of a plurality of emulated parameters on the output interface based on a control signal on the control interface.

9. A method for emulating a parameter of a fluid ejection die, the method comprising:

measuring a temperature of the fluid ejection die;

defining an emulated parameter of the fluid ejection die as a function of the measured temperature; and

outputting the emulated parameter to a printer system based on the function and the measured temperature.

10. The method of claim 9, further comprising:

measuring a parameter of the fluid ejection die to be emulated, wherein defining the emulated parameter comprises modifying the measured parameter based on the measured temperature to define the emulated parameter as the function of the measured temperature.

1 1. The method of claim 9, wherein measuring the temperature of the fluid ejection die comprises measuring the temperature of the fluid ejection die via a temperature sensor external to the fluid ejection die.

12. The method of claim 9, wherein the emulated parameter comprises a resistance, a voltage, or a current.

13. The method of claim 9, wherein outputting the emulated parameter comprises outputting the emulated parameter via a voltage mode digital to analog converter, a current mode digital to analog converter, a

transconductance amplifier, or a digital potentiometer.

14. A method for emulating a parameter of a fluid ejection die, the method comprising:

estimating a temperature of the fluid ejection die based on a thermal model;

defining an emulated parameter of the fluid ejection die as a function of the estimated temperature; and

outputting the emulated parameter to a printer system based on the function and the estimated temperature.

15. The method of claim 14, wherein estimating the temperature comprises monitoring a thermal control loop controlling heating of the fluid ejection die.

16. The method of claim 14, wherein the thermal model estimates the temperature based on whether heating of the fluid ejection die is enabled or disabled.

17. The method of claim 14, wherein the emulated parameter comprises a resistance, a voltage, or a current.

18. The method of claim 14, wherein outputting the emulated parameter comprises outputting the emulated parameter via a voltage mode digital to analog converter, a current mode digital to analog converter, a

transconductance amplifier, or a digital potentiometer.