公开(公告)号：US20210224220A1

公开(公告)日：2021-07-22

申请号：US16768205

申请日：2019-10-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Sirena LU ,  Rogelio CICILI ,  James Michael GARDNER ,  Scott A. LINN

IPC: G06F13/42 ,  B41J2/175 ,  G01F23/00

Abstract: A logic circuitry package for a replaceable print apparatus component comprises at least one logic circuit and an interface to communicate with a print apparatus logic circuit. The at least one logic circuit is configured to receive, via the interface, calibration parameters including an offset parameter and a sensor ID. The at least one logic circuit is configured to output, via the interface, a digital value corresponding to the sensor ID and offset based on the offset parameter.

公开(公告)号：US20210213746A1

公开(公告)日：2021-07-15

申请号：US16767582

申请日：2019-10-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： James Michael GARDNER ,  Sirena LU ,  Scott A. LINN

IPC: B41J2/175 ,  G06F13/42 ,  B41J2/045

Abstract: A logic circuitry package for a replaceable print apparatus component includes a first at least one analog cell of a first type, a second at least one analog cell of a second type, an analog-digital converter (ADC), an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The at least one logic circuit is configured to receive, via the interface, requests to perform measurements to selected ones of the at least one first and second analog cells. The at least one logic circuit is configured to selectively route analog signals from the selected analog cells to the ADC based on the requests.

公开(公告)号：US20210402786A1

公开(公告)日：2021-12-30

申请号：US16959375

申请日：2019-10-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： James Michael GARDNER ,  Sirena LU ,  Frank D. DERRYBERRY ,  Michael W. CUMBIE

IPC: B41J2/175

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.