Digital Commons Network^™

A Monotonicity Measure With A Fast Algorithm For Objective Evaluation Of Tone Mapping Methods, Hp Inc

Defensive Publications Series

The range of light intensity in the real world greatly

exceeds what most existing devices can display. Various tone

mapping methods have been developed to render HDR (high

dynamic range) images or to increase local contrast of

conventionally captured images. While local (or spatially varying)

tone mapping methods are generally more effective they are also

prone to artifacts such as halos. Most existing methods for

evaluating tone-mapped images focus on preservation of

informative details and may not identify artifacts effectively. This

paper proposes an objective metric based on a monotonicity

measure that may serve as a baseline measure for artifacts …

Continuous Impulsion Ink Delivery System For Printers, Hp Inc

Defensive Publications Series

The invention disclosure presented here describes a new architecture of an Ink Delivery System (IDS) based

on moving the ink permanently during printing without using an ink buffer, also known as Intermediate

Tank. This solution provides enough ink flow and pressure to ensure a correct printing operation of the

Print Head. Moreover, it presents great advantages in terms of system performance, printing speed and

reliability.

Functional Devices Based On Cssnl2br4 Perovskite Semiconductor Material Using Electro-Printing-Technology, Hp Inc

Defensive Publications Series

Inexpensive mass printing of semiconductor functional devices such as photovoltaic cells, diodes, transistors, LEDs etc., for smart packaging applications has a potential of a considerable market size, and is a desirable goal. This goal could not be achieved with traditional crystalline or even polycrystalline Silicon or similar semiconductor materials.

Air Tube Pressure Sensor, Hp Inc

Defensive Publications Series

The invention is a device to allow a miniature commodity barometric pressure sensor to be used

to remotely measure sealed chambers, including harsh environments which the sensor should not

be directly exposed to. This device is implemented in a modular miniature sensor board in an 3D

printer, where it allows the operation of many fans and blowers to be monitored and controlled

for optimal cooling and pneumatic powder transport conditions.

Dual Effect Cooling System For Thermal Inkjet Printheads, Hp Inc

Defensive Publications Series

Thermal Inkjet (TIJ) printheads are a core technology for some printing businesses, and are

used both in large format printers and 3D printers. TIJ printheads work by applying energy

in the form of heat to a fluid, producing a bubble that grows, ejecting a drop. Part of this

heat is removed from the printhead as it travels with the drop ejected, but some of the heat

remains in the printhead. If the job to be printed has a high printing density, the amount of

heat that is generated and accumulated in the printhead is high. This effect is accentuated

if …

Print, Digital Send And Authentication Using Screencast, Hp Inc

Defensive Publications Series

In the fast pace of technological innovation, Printer is an endlessly evolving product which is experiencing new

innovations and will keep continue to experience in the future. With consumers are becoming more aware of new

technology, the need of new and smarter ways of Printing, Digital Send and Authentication using new technology

will probably be one of the mainstays for innovation in the world of printers. For printing sectors innovative

printing and Digital Send is to stay productive and competitive whereas innovative security authentication is a

must to protect the data from unauthorized access. New ways of Printing, Digital Send …

Halogen Lamps Connection System, Hp Inc

Defensive Publications Series

Some printers are designed to print 3D plastic parts. Some of the advantages that such printers

provide are: ease of use, clean solution, good price/performance, good reliability, and high

productivity.

Some 3D printers use a pair of halogen lamp-based energy sources: a first source on the top

of the printer composed of an array of lamps and used to maintain certain temperature on the

printing zone (close to melting point), and a second source placed on the print carriage that

applies the extra energy to fuse and melt the selected powder. This last system is called the

fusing module.

A Handheld Cnc Printing/Cutting Tool Powered By A Game Console, Hp Inc

Defensive Publications Series

This disclosure is relevant to the fields of printing (2D and 3D), assistive robotic technology,

augmented reality, gaming, and entertainment.

Modular Compliant Link Splint For Flexible Tube Kink Prevention Without Routing Path Impact, Hp Inc

Defensive Publications Series

Described here is a device for preventing kink formation in flexible, non‐wire bound tubing without

adding pathing constraints to the tube. Flexible tubing tends to have minimum bend radii, below will

kink in the material form and choke off the flow of material through the tube. Current kink prevention

solutions either dictate a rigid path for the tube or impart some reaction force onto the tube. This

invention prevents kinks and allows a tube to retain its natural minimum strain path with no additional

force applied, and works for any number of different tube paths or bends. This is achieved …

System And Method To Detect Opto-Sensors Powder Dirtiness Level In 3d Printers, Hp Inc

Defensive Publications Series

Some 3D printer technologies are based on using powder material that is processed to create

3D printed parts. In general, this powder material is very fine and a small portion of it tends to

get dispersed within the printer environment. This powder can become a problem for optical

sensors in the printer as powder can deposit on the emitter and the sensor can lose

effectiveness. This disclosure shares an idea to be able to proactively detect that the sensor is

getting dirty, so the user can be warned before the user starts malfunction and some

maintenance can be done.

Convert Service Part Packaging Into A Service Tool To Do A Safely Intervention Of Replacing A Heating Module Of A Large Format Printer, Hp Inc

Defensive Publications Series

In ink printers, heating sources are usually applied with a heating module that covers the maximum

media width supported by the printer. As the portfolio evolves, the print velocity demand

(throughput) is increasing drastically and consequently the size of the heating module to maintain

the exposure time of the printed media underneath it. The heating size has driven the inclusion of

a lifting mechanism needed to move away the heating module and maintain the ergonomics of the

user interaction with the printer. Because of this the toughest service intervention is the heating

module replacement and it needed to be adapted …

System And Method For Preventing Users From Leaving Behind Original Documents In A Printer/Copier By Means By Restricting Access To Job Output, Hp Inc

Defensive Publications Series

This disclosure relates to the field of end-user printing, scanning, and copying.

A system is disclosed that provides a solution for end-users in the event that they would accidentally leave

an important, personal or confidential document behind during the process of scanning or copying that

document. The solution involves a workflow that would check to make sure an original document is removed

prior to releasing the output. The produced document would be physically restrained by the device in various

ways depending on the type of document being scanned or copied.

New Method For Notebook Power Saving By Rj45 Cable Detection, Hp Inc

Defensive Publications Series

In current design, the LAN chip still need to keep the power on even the RJ45 cable not plug-in. Although the LAN chip able to enter the D3 low power mode to save the system power but still with power consumption loading. This invention is to add the detect function at the LAN connector to turn on or turn off the LAN chip power

A System To Generate Printing Options And Mitigate Printing Outcome Issues, Hp Inc

Defensive Publications Series

This publication disclosures a system that can automatically generate optimized printing setting

based on the printer model and the document metadata. Printers have different settings that can

be tuned to have the best print out. The settings setup can be hard to the end user, that may not

know all the capabilities and options of the printer. In order to minimize this problem, we

propose a solution that analyze the document and the printer to find the best match.

Active Signature Matching With Rich Stylus Data, Hp Inc

Defensive Publications Series

This publication disclosed a great stylus signature use case for login app/system,

encryption/decrypt file and generating password. Signature on different people will be

with different “Inking pressure”, “Holding force”, “Moving speed”, “Writing angle”,

“Writing direction” and “Signature shape”. System can check such rich stylus data to do

Signature Matching job. Signature is easier to remember and harder forged by hacker.

A Method For Identifying And Preventing Repetitive Strain Injury, Hp Inc

Defensive Publications Series

Repetitive strain injury represents an important burden arising from work-related activities, generating

considerable societal and employer costs through workers’ compensation claims. The method presented in

this disclosure offers a way that aims to help identify and prevent such medical condition by collecting

usage data from mouse and keyboard strokes throughout the day. With the collected information, it is

possible to apply algorithms and techniques to predict trends of usage and check against company’s policies

and guidelines to help the user to take breaks or reduce the intensity of the tasks.

Automatic Access-Control Admission And Management Of Controllers For Things Using Manufacturer Usage Description, Eliot Lear, Brian Weis, Einar Nilsen-Nygaard

Defensive Publications Series

Techniques are provided herein for automated population of the controller abstraction found in Manufacturer Usage Description (MUD) files. This may be accomplished by resolving a file that contains lists of MUD Uniform Resource Locators (URLs) or additional controller files that can be iterated through.

Smart Auto Wireless Display Reconnection Method, Hp Inc

Defensive Publications Series

Source and sink devices of an unexpectedly terminated wireless connection

monitor the RSSI characteristic of a wireless interface. When the RSSI (Received Signal

Strength Indicator) exceeds a threshold which indicates that the source and sink devices

are close enough to reestablish the connection, the background daemons automatically

trigger the wireless display reconnection.

Integrated Rfid In Ink Supplies Assembly Through Built-In Antenna, Hp Inc

Defensive Publications Series

A technique is disclosed for integrating a built-in antenna for RFID capability

into an ink supply assembly.

Diagnosing Low-Level Failure Information In Electronic Devices, Hp Inc

Defensive Publications Series

A technique is disclosed that communicates to a user detailed diagnostic

information about a failure in an electronic device in a detailed and convenient manner

using simple hardware. A light-emitting or sound-emitting component of the device

encodes characters of a textual description of the failure. A smartphone app captures and

decodes the description, and presents a corresponding textual message about the failure

on the smartphone display.

Using A Vision System To Assess The Physical Characteristics Of A Petroleum Rigging Drill Pipe Segment, Hp Inc

Defensive Publications Series

A technique is disclosed that provides a real-time above-hole method of

assessing the drill string dynamic behavior, and drill pipe segment physical

characteristics, in petroleum drill rigging applications. A 3D imaging system assesses the

wear and tear of each unique drill pipe segment, and allows the rejection of pipe

segments prior to usage downhole

Keyboard With Ultraviolet Backlight And Fluorescent Keys, Hp Inc

Defensive Publications Series

By using UV backlighting to flouresce keyboard keys, light leak from backlit

keyboards is eliminated.

Automatic Management Of Computer Usage, Hp Inc

Defensive Publications Series

A computer-implemented technique allows posture, screen time, and other

restrictions on a child's use of a computer to be enforced without human supervision of

the child's computer usage.

Smart Disinfection Mode, Hp Inc

Defensive Publications Series

A technique that allows computers used in healthcare delivery to be

disinfected without shutting down the computer or putting it into sleep mode locks the

keyboard, touch pad and touch panel of a computer automatically when a user performs

disinfection and unlocks them after disinfection is completed.

Improved Super I/O Controller, Hp Inc

Defensive Publications Series

An improved Super I/O chip supports a USB keyboard in legacy mode while

utilizing the PS/2 pins of the chip for an additional function.

Internet Group Management Protocol General Query Mechanism Extension To Support Mass Withdraw Case With Ethernet Virtual Private Network All-Active Multi-Homing, Mankamana Mishra, Ali Sajassi, Al Rocheleau, Samir Thoria

Defensive Publications Series

Techniques are described herein for providing an Internet Group Management Protocol (IGMP) general query via an Ethernet Virtual Private Network (EVPN) router irrespective of the IGMP querier role in order to prevent multicast service outage. This may provide an all-active multi-home deployment to minimize service impact in case of network failure. Procedures defined herein achieve this for multicast traffic.

Identifying Vehicle Route Based On User Activity, Ramanathan Subramanian

Defensive Publications Series

Techniques are presented herein for an algorithmic framework to select the best vehicle route based on user activity. A minimum wireless service level is guaranteed in each leg of the route by accounting for anticipated user activity and localized network overloads estimated from route queries.

802.11ax For Internet Of Things - Machine Learning Assisted Optimized Power Save Techniques For Iot Devices Using 802.11ax Target Wake Time, Vaibhav Lade, Asha Mohan, Santosh Patil

Defensive Publications Series

Machine-learning assisted optimized power-saving techniques for battery-operated Wi-Fi Internet of Things (IoT) devices are provided. These techniques use various IoT device information including Manufacturer Usage Description (MUD) data along with a clustering algorithm to provide an automatic and dynamic computation of Target Wake Time (TWT) power save schedule for the devices. These techniques may be used by next generation 802.11ax access points to more efficiently schedule the target wake time for the 802.11ax supported IoT devices, to thereby prolong the lifetime of battery operated IoT devices connected to the 802.11ac access points.

Capturing Phy Information From Control Traffic For He Traffic Sources In Legacy Sensors, Matt Silverman, Amir Kamalizad, Claudius Tewari, Ardalan Alizadeh

Defensive Publications Series

Presented herein are techniques that enable a PHY-level state machine to stitch together PPDUs, in real-time, in a network sensor that is resource constrained including limitation on the receiver decoding capacity. In a software-defined receiver for any incoming frame, a modified PHY state machine is employed to track MU-RTS/CTS, 802.11ax trigger frames, and other 802.11ax traffic to infer the source and destination of the undecodable packets. The modified PHY state machine further captures and ties PHY parameters into the receiver (Rx) path.

Method To Dynamically Optimize Mimo Throughput Of Coupled Tunable Antennas, Vivek Bharambe, Matthew Slater

Defensive Publications Series

Many wireless communication standards (4G LTE, 5G NR, Wi-Fi, etc.) can leverage multiple antennas within a device through multiple-input multiple-output (MIMO) communication protocols. Antenna tuners are often used to tune the individual antennas for various transmission and reception characteristics. Traditional means of tuning the antennas, however, do not account for coupling between the antennas. Often, MIMO antennas are packaged within proximity of each other due to tight packaging constraints in modern electronic devices. In these types of coupled MIMO systems, maximum throughput is achieved when the coupling between the antennas is accounted for, even though a single antenna may not …