The present disclosure provides a graphical watermark, a method and an apparatus for generating a graphical watermark, and a method and an apparatus for authenticating a graphical watermark. The graphical watermark includes: a plurality of graphical markers carrying position and pose information, and identity information of the graphical watermark; and a watermark pattern provided between a pair of graphical markers.

A physical card may include a substantially planar body that may include a front surface, a back surface, and one or more side surfaces. The front surface may include a background formed primarily in a first color, and a plurality of embossed characters each having one or more front surfaces aligned substantially in parallel relative to the background. The plurality of embossed characters may include one or more side surfaces extending from the background at a lower edge to the front surface at an upper edge, wherein the one or more front surfaces of at least a first embossed character of the plurality of embossed characters are formed primarily in a second color different from the first color and the one or more side surfaces of at least the first embossed character are formed primarily in the first color to limit a viewing angle of the plurality of embossed characters.

A display device is disclosed that includes a plurality of pixels and a plurality of code pixels. The pixels include light-emitting elements, which display an image. The code pixels are disposed in the same layer as the pixels and are adjacent to a reference point disposed between the pixels. The code pixels include infrared light-emitting elements, which emit infrared light. At least one of the code pixels, disposed in a particular direction from the reference point, emit the infrared light to provide a code pattern having position information.

The preset invention is an inventory-parts control system and supervisory arrangement suitable for tracking the actual use of and accounting for the ultimate disposition of at least some of the individual pieces constituting an implant (or a complete implant construct), which is then being surgically engrafted in-vivo. This inventory-parts control system and supervisory arrangement is accurate, reliable, and fully functional for inventory part control purposes during the surgery; and will account for the ultimate disposition of each required component item of that implant (or complete implant construct) individually and in a timely manner, as each part is individually surgically introduced and engrafted in-vivo at a preselected anatomic site upon or within the body of a living subject.

This disclosure relates to a data storage device. A data port transmits data between a host computer system and the data storage device over a data channel. The device repeatedly broadcasts advertising packets over a wireless communication channel different from the data channel. Each advertising packet comprises a random value and a message authentication code calculated based on the random value and an identity key. The identity key is readable by a device to be connected and in proximity of the data storage device out of band of the data channel and the communication channel. The identity key enables the device to be connected to verify the message authentication code based on the random value and the identity key to thereby authenticate the data storage device.

Mobile wireless terminals, such as vehicles in traffic, can determine the relative positions of other vehicles with improved precision by arranging to acquire GNSS (global navigational satellite system) signals simultaneously, and then analyzing the various data sets differentially. Simultaneous acquisition can cancel many important errors such as motional errors of the vehicles, atmospheric distortions, and satellite timebase errors. Differential analysis to determine the relative positions of vehicles (as opposed to their overall geographical coordinates) can reduce errors related to satellite ephemeris and velocity, as well as roundoff errors. Localization with a precision of less than 1 meter can greatly improve collision avoidance while discriminating near-miss scenarios from imminent collisions, according to some embodiments. Messaging examples, in 5G and 6G, to manage the simultaneous acquisition and differential analysis, are provided in examples. Many other aspects are disclosed.

A receptacle for detecting delivery and retrieval events has a door sensor, an item sensor, a scanner, and a control unit for operating the sensors, and transmitting the sensor information for processing and analysis. A system can determine whether an event was a delivery or retrieval event based on sensor information and item tracking information. A system can further include an item configured to interact with a computing device.

The disclosure generally relates to networking infrastructure and, more particularly, to installing transient infrastructure for ubiquitous networking applications. A wireless gateway device is sent to physical premises with a parcel. After the wireless gateway device is delivered to the physical premises, a processor of the wireless gateway device draws power from the energy source to perform operations comprising executing program code stored in non-transitory processor-readable medium to establish a wireless communications connection with a network service through a first type of wireless communications interface. The wireless gateway device performs operations comprising establishing wireless communications with one or more wireless peripheral devices in the physical premises through the second type of wireless communications interface.

A ceramic circuit board includes a ceramic base material, a metal layer (first metal layer), and a marker portion. The marker portion is formed on the surface of the first metal layer. The surface of the metal layer (first metal layer) may be plated. When the surface of the metal layer (first metal layer) is plated, the marker portion may be formed on the plating.

A method of securely dispersing private user data may include operating a software application configured to utilize user data, receiving the user data, generating a sequence of random bits, and generating a plurality of secret shares from the user data. Generating the plurality of secret shares may include selecting a subset of the user data for each secret share and combining the subset of the user data with the sequence of random bits. The subset of the user data may be a first half of the user data for a first secret share, a second half of the user data for a second secret share, and the whole user data for a third secret share. The method may also include dispersing each of the secret shares.