Digital Commons Network^™

A Method Of Detecting Tempering On Computing Devices By Monitoring Electro-Magnetic Pattern, Hp Inc

Defensive Publications Series

• When hardware is tampered with additional ‘spying’ components, local Electro‐magnetic (EM)

pattern will be disturbed/changed, and show a different pattern.

• The need for the detection of hardware tampering could be monitored and detected by this

method outlined, through the comparison to ‘ground state’ of local EM field and pattern

recognition, then notify administrator and/or end user.

Foldable Device With Keyboard, Hp Inc

Defensive Publications Series

Develop a foldable device with keyboard and provide a compact folding device design, which is easy to carry with by the users.

Laptop Multi Function Panel By Type-C, Hp Inc

Defensive Publications Series

Utilize USB Type‐C Connector to achieve laptop panel display from other device.

Providing Responses To Queries Received In A Group Context, Anonymous

Defensive Publications Series

Techniques to provide responses to user queries are described herein. Sensor data from a client device is obtained with user permission to detect the presence of users near the device. Such users can include verified users and unverified users. User profiles for the users are accessed to retrieve information regarding the group, such as a total number of users, age/gender information, mood information, etc. The query context is determined, e.g., location and time of the query, weather at the location, etc. The user query is analyzed using natural language processing techniques. A customized response is generated based on the retrieved …

Controlling Routing For Power Outage Notification Transmission, Zaochun Zhang, Rui Huang, Zhanwu Wang, Xiaopu Zhang

Defensive Publications Series

Techniques are described herein to equip backup power for some key nodes and form the local Directed Acyclic Graphs (DAGs) rooted at the first hop node with backup power. Nodes have different preferred parents in different work states. In normal state, nodes behave like existing mesh networks and have no performance sacrifice. In Power Outage Notification (PON) state, nodes can unicast the PON messages to their PON state’s parents to improve PON message transmission efficiency and reliability.

Intelligent Regression Testing For Internet Of Things Wireless Device Using Mixed Machine Learning Methods, Lele Zhang, Mingyu Xie, Chuanwei Li, Xiang Fang

Defensive Publications Series

Techniques are described herein for a mixed Machine Learning (ML) method which contains both the Ant Colony Optimization (ACO) algorithm and Bayesian method. The regression test is very common for a Quality Assurance (QA) team in its daily work, but usually has too many cases for a very little-changed patch. The techniques described herein may pick up as few desired test cases as possible but still guarantee the same testing performance as before. This may improve the efficiency of the QA team, shorten its work time, and reduce the requirement for testing devices as well.

Smart Deployment With Routing Protocol For Low-Power And Lossy Networks Topology In Wireless Mesh Networks By Multi-Objective Optimization Algorithm, Caijun Jiang, Xiaopu Zhang, Dapeng Zhu, Rui Huang

Defensive Publications Series

Techniques are provided for a multi-objective model for the Wireless Mesh Networks (WMNs) planning problem where three conflicting objectives are optimized simultaneously. Different discrete recommendation areas may form different network topologies, thus screening out the best recommendation. In order to evaluate the network topology, a mechanism is described to simulate the radio coverage and Routing Protocol for Low-Power and Lossy Networks (RPL) simulator to search the optimal positon by new deployments generated iteratively. In particular, provided are (1) a networking deployment mathematical model based on RPL topology, (2) a multi-objective optimization approach to search the best RPL topology, and (3) …

Prediction Of Peer-To-Peer Routing Request Based On Low-Power And Lossy Networks Behavior Analytics, Xiaopu Zhang, Caijun Jiang, Dapeng Zhu, Zaochun Zhang

Defensive Publications Series

Techniques are provided to predict Peer-to-Peer (P2P) routing requests in Low-Power and Lossy Networks (LLNs). With this prediction, a P2P routing path may be prepared on demand and in advance.

Sers Packaging With Multiple Inlet And Outlet Features, Hp Inc

Defensive Publications Series

A 3D orifice plate for a SERS chip reduces or eliminates air bubble trapping in

the chip.

Invisible Display Mode, Hp Inc

Defensive Publications Series

The perceived visibility of a computer monitor is reduced or eliminated when

not in use by imaging the environment behind the monitor and adjusting it based on the

head position of the monitor's user.

Audio Stream Blending In Multi Input Stream Headsets, Hp Inc

Defensive Publications Series

With the multiplication of personal devices, individual users are now using more and more

devices simultaneously: one or more phones (business and personal), computers, tablets, Television

sets…

This change in use led to changes in communication protocols used by accessories to these

devices (such as Bluetooth multipoint) so that a single accessory could be connected to more than one

device at the same time.

The invention described here relate to headset as accessories to personal devices.

Ink Flow Channel On Cap Lipto Resolve Pen Health Issues, Hp Inc

Defensive Publications Series

Many inkjet printers use an elastomer cap to form a hermetic seal around the printhead

while also providing a mechanism for venting, such as to prevent pressure spikes when capping and

also to prevent pressure differentials such as due to environmental swings in temperature and

pressure. The present paper describes a method for guiding ink flow out of a printhead through

capping lips of the elastomer cap. The purpose of capping system is to reduce the rate of vehicle

loss from the pen’s nozzles. For instance, capping may help prevent the pen from falling out of PQ

spec due to …

Real Time Display Stabilization, Hp Inc

Defensive Publications Series

This publication disclosed a great usability of display screen for unstable environment.

System shaking level in different environment are different. System can detect device

movement and set a direction as an aligned view angel and to display stabled screen.

Dynamic Adjustment Of Hotword Detection Threshold, Tanmay Wadhwa, Neil Dhillon

Defensive Publications Series

Many devices allow users to speak a hotword to activate the device, e.g., a virtual assistant application, which then responds to the user command. With user permission, incoming speech data is analyzed to determine whether a hotword was uttered. First, coarse hotword detection is performed. If coarse detection indicates that the hotword was spoken, fine hotword detection is performed to confirm that the hotword was spoken. Per techniques described herein, when fine hotword detection is unsuccessful, the threshold for fine hotword detection is reduced for a short time window. Such reduction improves the likelihood of recognition of the next utterance …

Leveraging App Relationships And Distribution Patterns To Identify Malicious Software, Florian Tramer, Mo Yu, Sai Deep Tetali

Defensive Publications Series

Software distributors, such as the operators of online software repositories or stores, scan and analyze the software they host to flag potentially harmful applications (PHAs). The scans are typically performed offline and are based solely on app-level features and do not take into account structural relationships between different apps and devices. This disclosure describes an app ecosystem-based approach to detect PHAs via analysis of contextual information, such as app install statistics and installation distribution patterns. Relevant contextual information about each app obtained user permission is leveraged to build a machine learning pipeline to flag PHAs for further review. The ecosystem-based …

An Adoptive And Resilient Segment Routing Version 6 Policy To Address Tight Service Level Agreement Requirements In 5g Networks, Clarence Filsfils, Pablo Camarillo, Francois Clad, Zafar Ali

Defensive Publications Series

There is ongoing work positioning Segment Routing version 6 (SRv6) as a replacement to General Packet Radio Service (GPRS) Tunneling Protocol User Plane (GTP-U). The main benefits of using SRv6 include coupling of the mobility overlay with the underlay (transport Traffic Engineering (TE)) and service chaining (GiLAN) and reusing high performance routers with SRv6 capabilities as User Plane Functions (UPFs). Techniques are described herein for enabling the creation of specific network slices where in the underlay a high resiliency is achieved with zero packet loss for tight Service Level Agreement (SLA) enterprise premium traffic. This same mechanism may be reused …

Stable Auto Focus Re-Triggering With Hand Shake Motion Compensation, Ruiduo Yang

Defensive Publications Series

Automatic focusing by a camera involves actively scanning possible lens positions and choosing one that provides the sharpest image. Triggering too frequently can result in image frames captured during the process leading to an out-of-focus image. On the other hand, triggering less often can also lead to an out-of-focus image due to changes in the scene being captured that occur after automatic focus was locked. Scene changes due to hand shaking or camera motion are typically not taken into account by the automatic focusing process. As a result, any such changes that occur after locking focus can result in an …

Parallelizing Tests With Pessimistic Speculative Execution, Tavis Ormandy

Defensive Publications Series

Fuzzy testing or fuzzing is a technique for finding software vulnerabilities. Fuzzing works by feeding quasi-random, auto-generated input sequences to a target program and searching for failures. Fuzzers find inputs that trigger bugs; however, understanding those bugs is easier when extraneous data is removed to the extent possible. Extraneous data is removed by bisection, which is typically a serial procedure, e.g., doesn’t advance without knowing the result of the previous step. This makes test case optimization slow, sometimes taking hours to complete while CPU cores sit idle.

This disclosure describes techniques that parallelize the bisection procedure, e.g., by speculatively executing …

Browser With Smart Scrolling Based On User Context, Matthew Sharifi

Defensive Publications Series

This disclosure describes smart scrolling functionality for a web browser such that the user experience for scrolling a web page is improved to aid the user in locating information within the page that is likely of interest for the task at hand. To infer the user’s intent, the user’s ongoing tasks and context are determined, with user permission. Content of web pages viewed by the user is examined to determine content within the page that is likely to be of relevance to the user’s information need. Pieces of content likely to be of relevance to the user are highlighted via …

Speeding Up Web Page Content Updates Using Server-Side Page Versioning, Alessio Centazzo

Defensive Publications Series

In response to a page refresh request from a user, a web browser application often requests and downloads a previously loaded page again, even when the amount of updated content is small. As a result, bandwidth and time is wasted. This disclosure describes use of page versioning techniques to reduce the amount of data and time needed to update a web page. A web server implements page versioning to assign a unique identifier to different versions of a web page. The unique identifier is sent to the web browser along with the page content. Refresh requests received from the browser …

Automatic Problem Detection During Audio Or Video Call, Dhruv Bakshi, Jakob Foerster

Defensive Publications Series

Participants in an audio or video call over a network often face problems such as being unable to hear or see each other. With user permission, speech data from the call is automatically analyzed by a classifier to identify whether call participants are facing a problem. If a problem is identified, a message indicating a possible solution is provided, or if the call participant permits, automatic action is taken to fix the source of the problem. Users are provided with options to turn off the techniques.

Adjusting Network Parameters Dynamically To Accelerate Mesh Network Convergence, Yinfang Wang, Jim Lu, Chuanwei Li, Yajun Xia

Defensive Publications Series

Techniques are described to adaptively adjust network parameters by adjusting the network scale. On one side, a smooth Clear Channel Assessment (CCA) mechanism may adaptively adjust the network scale to take precautions for collision. On the other side, a Cyclic Redundancy Check (CRC) mechanism may also automatically adjust the network scale to detect the collision. This may speed up network formation and convergence significantly, and maintain the network effectively.

Behavioral Random Number Generator In Cryptography, David Maluf, Raghuram Sudhaakar, Pradeep Kathail

Defensive Publications Series

Techniques are described herein for using vehicle data for the creation of a seed number for cryptography generation in-car as a potential replacement for private keys. In this approach, each vehicle generates its keys by itself and is also able to rekey independently without the need for a central key generation system. Unlike vehicle keys today, which are generated centrally (mostly at manufacture time) and thus are exposed to a single source of failure if the key generator is compromised, the impact of a key compromise as described herein is isolated to one vehicle. Thus, whereas a threat today would …

Symmetric Ear-Related Ambisonics Rendering, Alper Güngörmüsler, Andrew Allen

Defensive Publications Series

Immersive virtual reality (VR) and augmented reality (AR) environments rely on high-quality audio. To this end, VR and AR platform developers have adopted Ambisonics, which is a technique used to record, modify, and recreate a full-sphere surround sound. To render (or decode) the sound field as faithful as possible, developers often use a set of head-related transfer functions (HRTFs). However, the use of HRTFs, which are processed with truncated spherical harmonics, increases errors with increase in frequency scale. A new method for rendering spatial audio ambisonically that handles each ear independently shifts the paradigm. The conventional HRTF ambisonic encoding is …

Attribution To Ad Campaigns Of User Interaction With Product Demo Units, Peter Lewis

Defensive Publications Series

Online advertisers, such as brick-and-mortar retail advertisers, or consumer product brands that sell through such retailers face a challenge in attributing consumer actions, such as visiting a store, to advertising campaigns. The techniques of this disclosure make advantageous use of product demo mode of products displayed in-store to transmit a signal that boosts visit detection. The solution is robust to products being moved around a store or removed from display, since the product itself broadcasts the signal. The techniques also utilize the ability of a product to establish facts about its surroundings that enable richer reporting on store visits.

Automatic Context Determination For Answering User Queries, Ruxandra Davies, Scott Davies

Defensive Publications Series

Virtual assistant applications enable users to specify a query. When the virtual assistant receives a query without relevant context, determining the appropriate answer is not possible. In these situations, it is necessary that the user respond to follow-up questions and provide the context. This disclosure describes techniques to automatically obtain the query context, when permitted by the user, and create a seamless user experience. Based on the obtained context, the query is answered which reduces back-and-forth with the user.

Click-To-Call Conversion Measurement Based On Transcribing Conversation, Alex Jacobson

Defensive Publications Series

The conversion metric, which is the ratio of sales (or other predefined result) to advertisement impressions or clicks, is a key measure for advertisers to assess the value derived from digital advertising. In click-to-call ads, which show a link for mobile users to initiate a call to an advertiser, conversions, if any, occur over the phone after the user clicks the ad. Conversions that occur over the phone are difficult to document, in turn making it difficult to accurately measure the conversion metric. This disclosure describes use of machine learning techniques to transcribe, with user and advertiser permission, the call …

Countering Phishing Attacks By Automated Responses, Brian Shucker, Brian Brewington

Defensive Publications Series

This disclosure describes techniques to automatically respond to phishing attacks received via communication channels such as email, chat, SMS, etc. A large number of automated responses require the attacker to differentiate between automated responses and human responses which can require substantial effort. In this manner, the described techniques actively disincentivize phishing attacks by causing an increase in the cost for an attacker to conduct such attacks.

Automatic Translation In Voice Calls, Sooraj Sasindran, Naveen Kalla

Defensive Publications Series

Participants in a voice call do not always have a common language. This can pose problems since participants may not be able to understand each other during the call. Some current techniques to address this problem involve incorporating a machine translator that can perform translation. However, for machine translation to be provided to all participants, such techniques require a machine translator mechanism to be provided at each participant’s end, which is not always possible.

The techniques of this disclosure incorporates machine translation techniques on a participant device such that the device can perform local translation of speech in a call. …

Automatic Removal Of Unwanted Objects From Images, Daniel Citron, Lachlan (Locke) Dunn

Defensive Publications Series

It is sometimes necessary to remove a person or other object from an image. Per current techniques, the removal of a person from an image, e.g., via manual cropping, produces a crude result, e.g., an image with discontinuities, an image with visible cropping boundaries, etc. Some image management and photo sharing applications/ services include features that enable users to remove specific persons from being categorized or surfaced in images; however, such solutions simply de-lists photos with the specified persons.

This disclosure describes techniques that enable a user to remove specified individuals or other objects from images. The portion of the …