Hewlett-Packard Patent Applications

PRINT LIQUID SUPPLY

Granted: July 11, 2024
Application Number: 20240227407
An interface structure connectable to a separate liquid reservoir, to connect that liquid reservoir to a receiving station, comprising a liquid interface to fluidically connect to at least one liquid needle of the receiving station, a liquid channel, to fluidically connect the liquid interface to the reservoir, a support wall supporting an integrated circuit laterally next to the liquid channel, the integrated circuit having contact pad contact surfaces, and a front push area adjacent…

PCR SYSTEM

Granted: July 4, 2024
Application Number: 20240218434
A PCR system is described. The PCR system comprises a thermocycling chamber comprising an electrode assembly configured to generate an electric field and cause reversible electrowetting of a PCR mixture within the thermocycling chamber; and an optical sensor configured to obtain optical signals from the thermocycling chamber. Also described is a method of manufacturing a PCR system and a method of performing PCR.

PROCESSING POWDERED MATERIAL

Granted: July 4, 2024
Application Number: 20240216995
A method in described in which a heated gas is conveyed. A powdered material is introduced to the heated gas at a first location, and powdered material is separated from the heated gas at a second location downstream of the first location. The heated gas causes contaminants in the powdered material to vaporize between the first location and the second location.

MICROFLUIDIC DEVICE

Granted: July 4, 2024
Application Number: 20240216916
A microfluidic device is described. The device comprises a flow channel; and at least one reaction chamber. The at least one reaction chamber comprises a chamber inlet connecting the at least one reaction chamber to the flow channel, a first region adjacent the chamber inlet, a second region spaced from the chamber inlet by the first region, a vent channel and a reaction reagent disposed on at least one inner surface of the second region. Also described is a PCR apparatus and a method of…

MICROFLUIDIC DEVICE

Granted: July 4, 2024
Application Number: 20240216912
A microfluidic device is described. The microfluidic device comprises a reaction chamber and a temperature control module overlaying the reaction chamber. The temperature control module comprises a temperature regulating flow channel disposed between two layers and in thermal contact with the reaction chamber, and wherein at least a portion of each layer comprises an optically transparent material. Also described is a method of manufacturing a microfluidic device and a method of…

Head Mountable Device with Tracking Feature

Granted: June 27, 2024
Application Number: 20240210708
Various examples described herein relate to an HMD which comprises an HMD body positioned against a face of a user which includes an IMU to track user location data in an environment. The HMD also comprises a detachable headband assembly including a tracking feature module to construct a map of the environment based on the user location data. The HMD further includes a mechanical mount feature attaching the detachable headband assembly to the HMD body. The mechanical mount feature…

REMOTE DESKTOP CONNECTION COMMUNICATIONS

Granted: June 27, 2024
Application Number: 20240214434
In an example in accordance with the present disclosure, a computing device is described. The computing device includes a processor and a memory communicatively coupled to the processor and storing executable instructions. The instructions, when executed cause the processor to run a connection broker module to assign a host device to a remote device for a remote desktop connection. The host device is assigned from a pool of host devices available to host the remote desktop connection.…

WIRELESS CHARGING DEVICE DETECTION WITH PHOTOSENSORS

Granted: June 27, 2024
Application Number: 20240213819
An example device includes a wireless charging circuit to wirelessly charge a portable electronic device. The device further includes a first photosensor positioned within an effective charging range of the wireless charging circuit, the first photosensor to output a first signal, and a second photosensor positioned outside the effective charging range, the second photosensor to output a second signal. The device further includes a control circuit connected to the wireless charging…

PREDICTION OF EFFICIENCY OF APPLICATION EXECUTION

Granted: June 27, 2024
Application Number: 20240211365
Computerized methods of classifying compute-intensive and memory-intensive applications are disclosed. A maximum efficiency for a user application is identified. A peak performance for a machine implementation is identified under one or more Quality of Service (QoS) parameters. Actual performance and resource usage of the application implementation using one or more performance vectors is measured and compared with the maximum efficiency and the peak performance. One or more areas of…

SKEW DETECTION

Granted: June 27, 2024
Application Number: 20240210870
According to some examples, a skew detection device comprises a first roller rotatable around a first axis, a second roller rotatable around a second axis, a first sensor, and a second sensor. The first sensor measures a first rotation parameter from the first roller and the second sensor measures a second rotation parameter from the second roller. A movement of a print media over the device rotates the first contact roller and the second roller, and a controller determines a skew of the…

MEDIA WEB TENSIONING

Granted: June 27, 2024
Application Number: 20240208253
A system (300) is provided having a printer (4) to print ink onto a web (6) of media (8). The system (300) has a winding roller (10) on which to roll the web (6) of media (8) after printing. A tensioner (12) to vary the tension in a portion (14) of the web (6) of media (8) is also provided. The portion (14) is a portion of web which is being rolled onto the winding roller (10). Also provided is controller (16) to control the tensioner (12) to vary the tension based on the time taken for…

DEFORMATION FACTORS BASED ON TENSION AND MEDIA ADVANCEMENT DATA

Granted: June 27, 2024
Application Number: 20240208249
A printing apparatus is disclosed herein. The apparatus comprises a platen to hold a media thereon, the media moveable along a media path direction; a displacement mechanism to move the media over the platen and along the media path direction; a media advancement sensor to measure the displacement of the media; and a controller. The controller to control the displacement mechanism to move the media over the platen at a tension; to determine, through the media advancement sensor, media…

PRINT APPARATUS MAINTENANCE

Granted: June 27, 2024
Application Number: 20240208228
A print apparatus is disclosed. The print apparatus comprises a print fluid application unit having a plurality of nozzles through which print fluid is to be deposited onto a printable medium during a printing operation. The print apparatus also comprises a nozzle cleaning surface to engage nozzles during a nozzle cleaning operation. The print apparatus also comprises a scanning unit and a controller. The controller is to control the print fluid application unit to deposit print fluid…

DIRECTING FLUID

Granted: June 27, 2024
Application Number: 20240208214
In one example a fluid ejection device comprises a housing and a deflector arm. The housing comprises a first housing portion and a second housing portion defining a fluid ejection aperture therebetween. The fluid ejection aperture is to direct fluid towards a roller. The deflector arm is movable within the fluid ejection aperture between first and second positions. In the first position, the deflector arm is proximate the second housing portion to thereby direct fluid between the…

PRINTING WITH MEDIA ROLL CHANGES AND NONPRODUCTION FRAMES

Granted: June 27, 2024
Application Number: 20240208203
In an example of the disclosure, first and second print jobs are received at a printer. The first and second print jobs each include production frames. The first and second print jobs are printed with a media roll change occurring during printing. A first finishing device information nonproduction (“FDIN”) frame and a second FDIN frame are printed. The first and second FDIN frames include coded information regarding the first print job and the second print job, respectively. The…

DROPLET PCR

Granted: June 27, 2024
Application Number: 20240207857
A droplet PCR system is described herein. The droplet PCR system comprises a chamber having a heating surface, a droplet dispenser to dispense PCR-reagent-containing droplets into the chamber, a heater disposed onto the heating surface of the chamber to heat a layer of fluid adjacent the heating surface, and a controller to control the heater to produce a pulsed heat flux.

DIELECTROPHORESIS SEPARATOR CROSS-OVER FREQUENCY MEASUREMENT SYSTEMS

Granted: June 20, 2024
Application Number: 20240201130
In example implementations, an apparatus is provided. The apparatus includes a dielectrophoresis (DEP) separator, an electrical field generator, a tracking system, and a controller. The DEP separator is to separate a plurality of different particles. The electrical field generator is coupled to the DEP separator to apply a frequency to the DEP separator. The tracking system is to track a movement of a type of particles in the DEP separator. The controller is in communication with the…

ACKNOWLEDGEMENT BASED AUDIO COMMUNICATIONS

Granted: June 20, 2024
Application Number: 20240205180
Techniques for determining a status of exchange of audio messages between a source computing device and a destination computing device are described. In an example, an audio input is received from a user from a source computing device. A source audio message and a source text file are then generated based on the audio input. The source audio message is then sent to the destination computing device. A destination text file is then received from the source computing device, where the…

INTERMEDIATE TRANSFER BELT ASSEMBLY WITH SHUTTER STRUCTURE

Granted: June 20, 2024
Application Number: 20240201618
An intermediate transfer belt assembly includes an intermediate transfer roller located on an inner side of an intermediate transfer belt to support the intermediate transfer belt, an accommodation portion to accommodate foreign matter, the accommodation portion having an inlet open toward the intermediate transfer belt, and a shutter to open or close the inlet.

DEVELOPMENT DEVICE HAVING ROTATABLE WIPER WIPING OPTICAL SURFACE OF LENS

Granted: June 20, 2024
Application Number: 20240201617
A developing device includes a housing to accommodate toner, a rotation member installed in the housing, a lens including an optical surface oriented in an axial direction of the rotation member, and a wiper installed in the rotation member and configured to repeatedly wipe the optical surface while the rotation member rotates and supported by the rotation member so as to be movable in the axial direction.