Logic circuitry

US10940693B1 · kind B1 · utility

Assignee

• HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

• James Michael Gardner · Corvallis, US
• Scott A. Linn · Corvallis, US
• Stephen D. Panshin · Corvallis, US
• Jefferson P. Ward · Vancouver, US
• David Owen Roethig · Medford, US
• David Olsen · Corvallis, US
• Anthony D. Studer · Corvallis, US
• Michael W. Cumbie · Albany, US
• Sirena Chi Lu · Corvallis, US

Key dates

• Filing date: Dec 27, 2019
• Grant date: Mar 9, 2021
• Expiry date: Dec 27, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2213/40
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Disclosed herein are sensor circuits for a replaceable print material container, the sensor circuit to communicate with a printer logic circuit. An example sensor circuit includes a first sensor to detect at least one of a pneumatic stimulus or a pressurization applied by a printer, a second sensor, and an interface to communicate with at least one of a voltage source or a data source of the printer logic circuit. The example sensor circuit also includes logic circuitry, responsive to a class parameter, to: (a) output a first signal based on at least one of the pneumatic stimulus or the pressurization sensed by the first sensor when the class parameter is a first class parameter; and (b) output a second signal based on at least one of an output of the second sensor, different data, or a different algorithm when the class parameter is a second class parameter.