Abstract: A method for detecting and preventing bot activity in a protected environment by leveraging API behavior analysis is disclosed. The method includes identifying target APIs vulnerable to bot attacks through the analysis of parameters such as user credentials and session tokens. It determines the importance of target APIs based on call volume and context, generating correlation keys from headers, cookies, or payloads to track API flows. The method identifies mandatory and probable pre-APIs using historical patterns, assigns risk scores based on criticality, and validates API request sequences in real-time by analyzing integrity and sequence likelihood. Caching mechanisms store data related to APIs, correlation keys, and invocation paths for real-time lookups. Incoming requests are assessed for missing pre-APIs or sequence deviations, with substitute APIs validated against thresholds. Requests flagged as bot traffic are blocked, ensuring secure API workflows and mitigating automated threats effectively.

Abstract: Various embodiments include methods and devices for implementing a secure user interface. The method may include generating a secure user interface display in a secure execution environment, generating a non-secure display in a normal execution environment, combining the secure user interface and the non-secure display into a combined display, and presenting the combined display via a display device.

Abstract: Techniques for determining whether to send an MFA push notification are described. An indication of a request for a user account to access the application service via a primary device is received at an MFA service from an application service. Using a PAN protocol, determine whether the primary device and the secondary device are within a threshold proximity. When the primary device and the secondary device are within the threshold proximity, allows a push notification to be transmitted to the secondary device requesting authentication to grant access to the user account by the primary device, and when the primary device and the secondary device are not within the threshold, refrain from transmitting the push notification.

Abstract: Techniques for determining whether to send an MFA push notification are described. An indication of a request for a user account to access the application service via an endpoint device is received at an MFA service from an application service. A first geolocation of the endpoint device and a second geolocation of an MFA-registered device associated with the user account are received at the MFA service. Using the first and second geolocation, determine whether the endpoint device and the MFA-registered device are within a threshold proximity. When the endpoint device and the MFA-registered device are within the threshold proximity, allows a push notification to be transmitted to the MFA-registered device requesting authentication to grant access to the user account by the endpoint device, and when the endpoint device and the MFA-registered device are not within the threshold, refrain from transmitting the push notification.

Abstract: Embodiments of bidirectional repeaters and communications systems are disclosed. In an embodiment, a bidirectional repeater includes a digital state machine configured to control the bidirectional repeater to operate under a functional mode or under a bypass mode and a bypass mode driver configured to automatically detect a direction of signal through input/output (I/O) terminals of the bidirectional repeater and to allow a signal to pass through the bidirectional repeater based on the direction of signal under the bypass mode.

Abstract: Apparatuses, systems, and methods are provided for use with expandable displays. In some implementations management techniques and/or systems are provided that allow for access to expandable display functionality to be managed to as to potentially prolong device battery life. In other or additional implementations, techniques and/or systems are provided for potentially safeguarding devices with expandable displays from damage in the event of a fall or drop event. In yet other or additional implementations, techniques and/or systems are provided for determining the expansion state of an expandable display, thereby allowing corrective measures to be taken if the actual expansion state of the expandable display does not align with the expected expansion state of the expandable display.

Abstract: An electronic circuit that switchably generates an offset-bias output at a offset-bias voltage in response to at least an enable signal at a low voltage relative to the offset-bias voltage is provided. The electronic circuit includes a reference input terminal, configured to be connected to a reference voltage; a low-voltage-input terminal, configured to receive the enable signal at a first voltage; a high-voltage-supply terminal, configured to receive power at a second voltage; an offset-bias output terminal, configured to output the offset-bias output, the offset-bias voltage being less than the second voltage; a voltage-offset circuit configured to generate the offset-bias voltage from the second voltage; a bias circuit configured to switchably provide a bias current to the voltage-offset circuit; and a high-voltage stand-off circuit, connected between the bias circuit and the voltage-offset circuit and configured to withstand a voltage difference between the second voltage and the reference voltage.

Abstract: Methods, devices and systems for controlling an active fingerprint sensor area of a fingerprint sensor system are disclosed. In some examples, the one or more active fingerprint sensor area criteria may involve, or correspond to, a security level. The security level may correspond to a data security level, a software application security level, or a combination thereof. According to some examples, controlling the active fingerprint sensor area may involve activating a relatively larger fingerprint sensor area for a relatively higher security level. Alternatively, or additionally, the one or more active fingerprint sensor area criteria may correspond to a fingerprint sensor area used for obtaining fingerprint sensor data from one or more digits involved in an enrollment process, the size of one or more digits used during the enrollment process, the size of one or more digits used for one or more recent authentication attempts, or combinations thereof.

Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that are able to be used to detect fingerprints from opposing sides of an apparatus, e.g., a smartphone with screens on both sides of the housing. Some implementations of such sensors may include, for example, two piezoelectric and sensor pixel layer assemblies coupled to a common controller. Other implementations of such sensors may include, for example, a single piezoelectric and sensor pixel assembly coupled with a controller configured to apply a range-gate delay to obtain fingerprint scans from either opposing side of an apparatus. Yet further implementations of such sensors may include acoustic masking layers to spatially filter ultrasonic waves propagating to either side of an apparatus.

Abstract: This disclosure provides systems, methods and apparatus for controlling a device operational mode. Some examples involve receiving an indication of an authentication attempt, determining an authentication mode corresponding with the authentication attempt and determining a device operational mode corresponding with the authentication mode. Responsive to determining that an authentication process corresponding with the authentication attempt completed successfully, a device operational mode corresponding with the authentication mode may be implemented. Examples of device operational modes include a limited access mode and a distress mode, both of which may involve blocking access to at least one type of device functionality or access to at least one type of data. The distress mode also may involve sending SOS data to one or more other devices. The quick launch mode may cause one or more selected software applications to initialize.

Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that feature an ultrasonic transmitter and multiple subsets of ultrasonic sensor pixels, each subset of ultrasonic sensor pixels associated with a different ultrasonically sensitive display surface, at least two of which are non-coplanar with one another. In some implementations, the ultrasonically sensitive display surfaces may be provided by different portions of a flexible display that has been flexed into a configuration in which two or more portions thereof are non-coplanar. In some instances, a controller may be provided that selectively reads ultrasonic sensor signals from subset(s) of the ultrasonic sensor pixels that are associated with the ultrasonically sensitive display surfaces that a touch-sensing system indicates are experiencing touch events.

Abstract: Systems and methods for detecting and mitigating a contaminant on a display are disclosed. In an aspect, a mobile device may scan the display. The mobile device may generate one or more images related to the contaminant based on the scanning. The mobile device may detect the contaminant on the display based on the one or more images. The mobile device may identify the contaminant on the display using the one or more images. The mobile device may perform a mitigation action to mitigate the contaminant based on the identification of the contaminant.

Abstract: Systems, methods, and non-transitory media are provided for managing thermal profiles for an electronic device. For example, a method may include setting an electronic device to first thermal profile based on a first context, receiving a context change indicating that the electronic device is associated with a second context and, based on the second context, setting the electronic device to a second thermal profile. The setting of the electronic device to the second thermal profile can occur in an interactive mode in which user input is received or a non-interactive mode in which the electronic device automatically selects the second thermal profile.

Abstract: Methods, systems, computer-readable media, and apparatuses for an authentication-based communication link with a peripheral device are presented. In some embodiments, the peripheral device receives, from a host device, and stores, in a memory of the peripheral device, registration data including, for instance, a user credential, a user identifier, and/or a device identifier. Upon a request to pair the peripheral device with the same or a different host device, the peripheral device requests and receives, from such a host device, authentication data including a user credential, a user identifier, and/or a device identifier. The peripheral device determines whether a match exists between the received authentication data and the registration data. If so, a communication link is established with the host device.

Abstract: Some disclosed methods involve maintaining a data structure that includes historical fingerprint location data. The historical fingerprint location data may include information corresponding to prior instances of fingerprint image data obtained from each of a plurality of fingerprint sensor areas. Some such methods involve identifying, based at least in part on the historical fingerprint location data, a selected fingerprint sensor area, providing a user prompt to place a digit within or on the selected fingerprint sensor area, and obtaining current fingerprint image data of the digit from the selected fingerprint sensor area. In some examples, the historical fingerprint location data indicate a number of prior instances during which prior fingerprint image data has been obtained from each fingerprint sensor area of the plurality of fingerprint sensor areas. In some such examples, the identifying is based, at least in part, on the number of prior instances.

Abstract: Embodiments of bidirectional repeaters and communications systems are disclosed. In an embodiment, a bidirectional repeater includes a digital state machine configured to control the bidirectional repeater to operate under a functional mode or under a bypass mode and a bypass mode driver configured to automatically detect a direction of signal through input/output (I/O) terminals of the bidirectional repeater and to allow a signal to pass through the bidirectional repeater based on the direction of signal under the bypass mode.

Abstract: Some disclosed methods involve randomly or pseudo-randomly selecting one fingerprint authentication case from a plurality of fingerprint authentication cases stored in a memory, each of the fingerprint authentication cases corresponding to one or more fingerprints used during an authentication process, the fingerprint authentication cases including a plurality of multiple-fingerprint authentication cases for which two or more fingerprints are used during the authentication process.

Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that are able to be used to detect fingerprints from opposing sides of an apparatus, e.g., a smartphone with screens on both sides of the housing. Some implementations of such sensors may include, for example, two piezoelectric and sensor pixel layer assemblies coupled to a common controller. Other implementations of such sensors may include, for example, a single piezoelectric and sensor pixel assembly coupled with a controller configured to apply a range-gate delay to obtain fingerprint scans from either opposing side of an apparatus. Yet further implementations of such sensors may include acoustic masking layers to spatially filter ultrasonic waves propagating to either side of an apparatus.

Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that are able to be used to detect fingerprints from opposing sides of an apparatus, e.g., a smartphone with screens on both sides of the housing. Some implementations of such sensors may include, for example, two piezoelectric and sensor pixel layer assemblies coupled to a common controller. Other implementations of such sensors may include, for example, a single piezoelectric and sensor pixel assembly coupled with a controller configured to apply a range-gate delay to obtain fingerprint scans from either opposing side of an apparatus. Yet further implementations of such sensors may include acoustic masking layers to spatially filter ultrasonic waves propagating to either side of an apparatus.

Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that feature an ultrasonic transmitter and multiple subsets of ultrasonic sensor pixels, each subset of ultrasonic sensor pixels associated with a different ultrasonically sensitive display surface, at least two of which are non-coplanar with one another. In some implementations, the ultrasonically sensitive display surfaces may be provided by different portions of a flexible display that has been flexed into a configuration in which two or more portions thereof are non-coplanar. In some instances, a controller may be provided that selectively reads ultrasonic sensor signals from subset(s) of the ultrasonic sensor pixels that are associated with the ultrasonically sensitive display surfaces that a touch-sensing system indicates are experiencing touch events.