Abstract: A method includes providing a cartridge and the cartridge includes a slot for receiving a microfluidic chip having a set of first channels. The cartridge also includes a set of second channels and each channel of the set of second channels is coupleable to a different channel of the set of first channels during use with the microfluidic chip. The cartridge also includes an indent configured for engagement and alignment of the cartridge during use. The method also includes inserting the cartridge into a device, such that the cartridge engages a first biasing member of the device configured for alignment of the cartridge in a first direction. The first biasing member is configured to bias movement of the cartridge into locking position with a notch of the device.

Abstract: Accessories for an electronic device and methods are described. The accessory comprises a substrate configured to be removably attached to the electronic device and a near-field communications (NFC) tag attached to the substrate and configured to transmit interaction data in response to receiving a signal from a separate electronic device. The interaction data causes the separate electronic device to access user data associated with a unique user account.

Abstract: A method includes providing a cartridge and the cartridge includes a slot for receiving a microfluidic chip having a set of first channels. The cartridge also includes a set of second channels and each channel of the set of second channels is coupleable to a different channel of the set of first channels during use with the microfluidic chip. The cartridge also includes an indent configured for engagement and alignment of the cartridge during use. The method also includes inserting the cartridge into a device, such that the cartridge engages a first biasing member of the device configured for alignment of the cartridge in a first direction. The first biasing member is configured to bias movement of the cartridge into locking position with a notch of the device.

Abstract: Accessories for an electronic device and methods are described. The accessory comprises a substrate configured to be removably attached to the electronic device and a near-field communications (NFC) tag attached to the substrate and configured to transmit interaction data in response to receiving a signal from a separate electronic device. The interaction data causes the separate electronic device to access user data associated with a unique user account.

Abstract: Accessories for an electronic device and methods are described. The accessory comprises a substrate configured to be removably attached to the electronic device and a near-field communications (NFC) tag attached to the substrate and configured to transmit interaction data in response to receiving a signal from a separate electronic device. The interaction data causes the separate electronic device to access user data associated with a unique user account.

Abstract: Embodiments of the inventive concept include an interstitial fluid capture device configured to capture an interstitial fluid sample from the mouth of a user, an electrolyte measurement kit including said device, and a method for measuring electrolyte levels using said device. An exemplary device includes a main body portion configured for placement in the mouth of a user, the main body portion including a reservoir containing a hypertonic solution and having an opening that is sealed by a semipermeable membrane that permits a sample of interstitial fluid from the mouth of the user to be drawn through the membrane and into the solution reservoir. Various analyses may be performed on the captured interstitial fluid sample after removal of the device, including but not limited to, the assessment of one or more electrolyte levels through the use of various test strips or other techniques.

Abstract: Accessories for an electronic device and methods are described. The accessory comprises a substrate configured to be removably attached to the electronic device and a near-field communications (NFC) tag attached to the substrate and configured to transmit interaction data in response to receiving a signal from a separate electronic device. The interaction data causes the separate electronic device to access user data associated with a unique user account.

Abstract: Accessories for an electronic device and methods are described. The accessory comprises a substrate configured to be removably attached to the electronic device and a near-field communications (NFC) tag attached to the substrate and configured to transmit interaction data in response to receiving a signal from a separate electronic device. The interaction data causes the separate electronic device to access user data associated with a unique user account.

Abstract: Accessories for an electronic device and methods are described. The accessory comprises a substrate configured to be removably attached to the electronic device and a near-field communications (NFC) tag attached to the substrate and configured to transmit interaction data in response to receiving a signal from a separate electronic device. The interaction data causes the separate electronic device to access user data associated with a unique user account.

Abstract: A system and method are provided for calibrating an eye gaze tracking system. The method comprises obtaining gaze data; obtaining at least one key point corresponding to a portion of media content being displayed; linking the gaze data to the at least one key point; and generating one or more calibration parameters by comparing gaze data with associated ones of the at least one key point.

Abstract: Embodiments of a stabilizing camera mount apparatus having a mount assembly for mounting a camera to a bow, such as an archery bow. The mount assembly includes a camera mount with a plurality of springs and/or a dampening material interposed between a top plate and a bottom plate for providing a dampening effect that prevents the camera from excessive movement when the bow is moved by an individual.

Abstract: In a Digital Rights Management (DRM) system, cryptographic keys for decrypting distributed assets (such as audio or video media) are distributed using an offline (e.g., non-Internet) method for distribution of the key generation process, with an implicit authorization to use the distributed key generation process. This is used to update an asset key for use by a client such as a media player when a key formula for generating the key for decrypting an asset has been compromised, such as by hackers.

Abstract: A system and method are provided for calibrating an eye gaze tracking system. The method comprises obtaining gaze data; obtaining at least one key point corresponding to a portion of media content being displayed; linking the gaze data to the at least one key point; and generating one or more calibration parameters by comparing gaze data with associated ones of the at least one key point.

Abstract: Method and apparatus to detect clock roll-forward attacks in a computing device or similar system. This protects against hackers who tamper with the system clock of, for instance, a digital media playback device in order to access a content item which has been rented for a limited time. By detecting clock roll-forward tampering, the present method and system prevent such hackers from accessing the content item outside its authorized rental time period.

Abstract: A method and associated apparatus for use in a data distribution process to allow an untrusted intermediary to re-encrypt data for transmission from an originator to a message receiver without revealing the data (message) or the cipher to the intermediary. This method uses a composition of two ciphers for re-encrypting the message at the intermediary, without revealing the plain text message or either cipher to the intermediary.

Abstract: In a Digital Rights Management (DRM) system, cryptographic keys for decrypting distributed assets (such as audio or video media) are distributed using an offline (e.g., non-Internet) method for distribution of the key generation process, with an implicit authorization to use the distributed key generation process. This is used to update an asset key for use by a client such as a media player when a key formula for generating the key for decrypting an asset has been compromised, such as by hackers.

Abstract: A computer based method and apparatus to tie content protection information to recipient devices via a family of deterministic permutations of quadratic multivariate polynomial maps used for computing an HMAC (Hash Message Authentication Code) or a signed digest. This allows digital rights management (DRM) systems to customize the protection information (such as an HMAC or signed digest) for audio and video content, whereby such protection information for a piece of content differs for different recipient devices or for types of recipient devices.

Abstract: A method and associated apparatus for use in a data distribution process to allow an untrusted intermediary to re-encrypt data for transmission from an originator to a message receiver without revealing the data (message) or the cipher to the intermediary. This method uses a composition of two ciphers for re-encrypting the message at the intermediary, without revealing the plain text message or either cipher to the intermediary.

Abstract: Method and apparatus to detect clock roll-forward attacks in a computing device or similar system. This protects against hackers who tamper with the system clock of, for instance, a digital media playback device in order to access a content item which has been rented for a limited time. By detecting clock roll-forward tampering, the present method and system prevent such hackers from accessing the content item outside its authorized rental time period.

Abstract: For purposes of cryptographic authentication, verification and digital signature processes, a derivation function is provided. The derivation function is generated from a Fourier series, using a prime number to compute the initial value in the series.