公开(公告)号：US20230370621A1

公开(公告)日：2023-11-16

申请号：US17740708

申请日：2022-05-10

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

Inventor： David M. BERFANGER ,  Di Yuan TZENG ,  Jay S. GONDEK ,  Mark Quentin SHAW

IPC: H04N19/186 ,  H04N1/60

CPC classification number: H04N19/186 ,  H04N1/6008

Abstract: An example non-transitory machine-readable medium includes instructions that, when executed by a processor, cause the processor to define a color encoding based on selected colors within a reference color space. The selected colors include white, black, and a set of chromatic colors spanning different print gamuts of a range of different printing devices. The instructions are further to encode a source datapoint of a source color space with the color encoding to obtain a reference datapoint of the reference color space by determining the reference datapoint as a mixture of white, black, and two colors selected from the set of chromatic colors, and output the reference datapoint.

公开(公告)号：US20220366931A1

公开(公告)日：2022-11-17

申请号：US17738501

申请日：2022-05-06

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

Inventor： Kathryn Janet Ferguson ,  Casey Lee CAMPBELL ,  Jan P. ALLEBACH ,  Mark Quentin SHAW ,  John Stuart BOLTON ,  George T. CHIU ,  Patricia DAVIES ,  Guochenhao SONG ,  Zhiyang WEN

IPC: G10L25/21 ,  G10L25/18

Abstract: An example method comprises identifying a plurality of zones of a spectrogram of an audio sample associated with an operation cycle of an imaging device, generating a set of audio models by transforming the audio sample to a power spectrum and identifying a plurality of audio features within the power spectrum and for the plurality of zones, generating a plurality of simulated audio samples using the set of audio models by adjusting an audio feature of the plurality of audio features, and outputting a set of training data including the audio sample and the plurality of simulated audio samples to train a predictive model indicative of a predicted failure of the imaging device.