Abstract: Methods for transmitting information in a regulated spectrum and networks configured to operate within a regulated spectrum (and optionally, within a given geographic region) are disclosed. The methods generally include receiving or transmitting radio signals encoded with spectral allocation information, analyzing the spectral allocation information to determine available bands in the regulated spectrum for signal transmission, and transmitting signals on at least one of the available bands in the regulated spectrum.

Abstract: Systems, methods, and other embodiments associated with generating transient identifiers are described. According to one embodiment, an apparatus includes a memory device that stores a primary identifier that is unique to the apparatus. The primary identifier correlates with a displayed identifier of the apparatus that is used by a remote device to initiate communications with the apparatus. The apparatus includes identifier logic configured to generate a secondary identifier in response to receiving an association request that includes the displayed identifier when the apparatus is in a bootstrap mode. The bootstrap mode is a state of the apparatus when the apparatus is initializing and will accept a new association. The association request is a wireless communication that initiates establishing secure communications.

Abstract: Apparatus having corresponding computer-readable media comprise: a first transceiver, wherein the first transceiver includes a receiver configured to receive a first message from a first device, wherein the first message includes a location of the first device, and a transmitter configured to transmit a second message, wherein the second message includes the location of the first device, and a request for a frequency allocation based on the location of the first device; wherein the receiver is further configured to receive a third message, wherein the third message includes the frequency allocation; and a second transceiver configured to wirelessly communicate on a frequency band indicated by the frequency allocation.

Abstract: A device for protecting a user from a sharp tip of a medical needle includes a central body portion, a medical needle having a sharp tip, a pair of wings in attachment to the central body portion, and a mechanical fastener disposed on at least one of the wings. The mechanical fastener is configured to selectively attach the wings together with the medical needle positioned between the wings so as to protect a user from the sharp tip of the medical needle. In another embodiment, a sharp tip of a medical needle is withdrawn from a patient, a pair of wings with the medical needle positioned in between is closed, and the wings are fastened together with the medical needle positioned between the wings so as to protect a user from the sharp tip of the medical needle.

Abstract: Systems, methods, and other embodiments associated with deriving group keys used to securely communicate in a wireless mesh network are described. According to one embodiment, a controller, for calculating group keys used to secure communications to a plurality of remote devices in a network, includes a key logic configured to calculate a group key by using a group master key and unique information about a remote device of the plurality of remote devices. The plurality of remote devices are configured in a mesh topology. The group key is for securing communications with the remote device. The controller also includes a communication logic configured to secure a communication by using the group key. The communication is to be transmitted to the remote device.

Abstract: A Network device including a security module to establish, in response to the network device being capable of operating in multiple frequency bands, and in response to the network device operating in a first frequency band, security for the frequency band and a second frequency band by performing a single authentication in the first frequency band prior to the network device switching operation form the first frequency band to the second frequency band. A session transfer module to transfer, subsequent to the network device switching operation from the first frequency band to the second frequency band, a communication session of the network device from the first frequency band to the second frequency band. The communication session resumes in the second frequency band using the security established for the second frequency band during the operation of the network device in the first frequency band.

Abstract: A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The valve assembly works using two separate surfaces and a biasing element with a force. When hydrostatic pressure is present forces are created on these surfaces, these forces have a direct relationship with pressure, as an increase in pressure will increase the force and vice versa. The surface areas are designed such that the valve will maintain closed while under a predetermined fluid pressure, indicating to the driller that the inner tube has landed. When the driller relieves the fluid pressure and the pressure decreases, the force difference between the respective forces decreases until the valve opens for drilling through the force from the biasing element.

Abstract: A first network device including a control module to operate the first network device, prior to beginning discovery of a second network device, initially in a power save mode and subsequently in a normal mode after receiving an input from a user of the first network device while operating in the power save mode; and prior to beginning the discovery and subsequent to the first network device switching from operating in the power save mode to the normal mode, to alternately operate the first network device as a client station and an access point. A device detection module begins, subsequent to the first network device switching from operating in the power save mode to the normal mode, the discovery by scanning a network or by transmitting a beacon over the network when the first network device operates as a client station or an the access point, respectively.

Abstract: A mobile device includes a first interface module, a second interface module, and a control module. The first interface module is configured to interface the mobile device to a first wireless network and to receive data from a transmitting device via the first wireless network. The second interface module is configured to interface the mobile device to a second wireless network. The control module is configured to determine based on the data received when to switch a link to the transmitting device from the first wireless network to the second wireless network. The control module is further configured to transmit a message that informs the transmitting device not to transmit the data to the mobile device via the first wireless network in response to the link being switched to the second wireless network.

Abstract: A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The valve assembly works using two separate surfaces A and B and a biasing element with a force FS. When hydrostatic pressure is present forces are created on these surfaces: FA and FB. These forces have a direct relationship with pressure, as an increase in pressure will increase the force and vice versa. The surface areas are designed such that: FA>FB+FS, which will maintain the valve closed while under a predetermined fluid pressure, indicating to the driller that the inner tube has landed. When the driller relieves the fluid pressure and the pressure decreases, the force difference between FA, FB and FS decreases until FA<FB+FS, thus opening the valve for drilling.

Abstract: A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The piston member of the valve assembly is located between a fluid pressure communication port and a fluid flow port to hold the retracting case in an up position and the latches retracted. After an increased fluid pressure has pushed the piston member past the annular element or bushing, the piston member substantially restricts fluid flow through the bushing and allows the retracting case to move to a down position and extend the latches. If the latches are not extended due to an obstruction or misalignment, the retracting case will prevent the piston member from completely passing through the bushing, thus maintaining high fluid pressure due to the flow ports remaining closed, and indicating to the driller that the latches have not properly latched.

Abstract: A network interface comprises a random or pseudo-random number generator. The network interface determines that a first communication device is group owner of a peer-to-peer (P2P) group, and randomly or pseudo-randomly generates a media access control (MAC) address for the first communication device using the random or pseudo-random number generator. The network interface utilizes the randomly or pseudo-randomly generated MAC address for the first communication device in group owner communications with one or more second communication devices in the P2P group.

Abstract: Systems, methods, and other embodiments associated with reducing storage space used for cryptographic keys in a memory are described. According to one embodiment, an apparatus includes a non-volatile memory. The apparatus includes key logic configured to expand a seed value to form a key. The seed value is a sequence of random bits. The apparatus includes inspection logic configured to inspect the key to determine whether the key is valid for use as a cryptographic key. The key logic is configured to store the seed value in the non-volatile memory if the key is valid, and if the key is not valid, the key logic is configured to modify the seed value to form a modified seed value, to generate a new key from the modified seed value, and to repeat inspecting the new key and modifying the seed value until a valid key is determined.

Abstract: In a method available frequency band for communication is determined and a frequency fc of a carrier is determined based on the available frequency band. The carrier is set to the frequency fc for communicating with one or more communication devices via a first communication channel within the available frequency band using. After communicating via the first communication channel, the carrier frequency fc is used for communicating with one or more communication devices via a second communication channel within the available bandwidth. A center frequency of the first channel is different than a center frequency of the second channel.

Abstract: Aspects of the disclosure provide a method for sharing power load in a network. The method includes identifying a first device to serve as an AP of the network in a next time interval, providing network information from a second device that presently serves as the AP to the first device. When the first device starts to serve as the AP of the network, the second device can be configured to enter into a power save state in order to reduce power consumption by the second device in the next time interval.

Abstract: Aspects of the disclosure provide a method for service discovery. The method includes receiving a first service advertisement by a first device. The first service advertisement includes at least a service of a second device. Further, the method include updating a service directory of the first device to include the service of the second device, and transmitting a second service advertisement by the first device. The second service advertisement includes at least the service of the second device, and can be used by a third device to effect use of the service of the second device.

Abstract: A personal basic service set (PBSS) includes a first device configured to communicate in the PBSS and a second device configured to communicate in the PBSS. The first device is configured to establish a robust security network association (RSNA) with the second device (i) without associating with a PBSS control point (PCP) and (ii) without associating with the second device.

Abstract: Methods, systems, and apparatus are disclosed for generating one or more device identifiers based on a public key associated with a respective device. Various embodiments include condensing and/or hashing a device public key to generate the corresponding device identifier. By using the relationship between a device public key and its device identifier, public key exchanges are implemented to verify this relationship and facilitate device enrollment into one or more networks. The embodiments further describe enrolling one or more devices into networks and/or authorizing devices to enroll one more devices into networks based on public key exchanges and verification that the one or more device identifiers match the respective public keys. Embodiments for authorizing other devices describe a first device enrolling a second device in a first network and authorizing a third device to enroll the second device in a second network using an exchange of public keys and/or messages.

Abstract: A first device including a transmitter, a receiver, and a processor. The transmitter is configured to wirelessly transmit a query to a second device that is remote from the first device. The query is configured to not generate an alert to a user of the second device in response to the second device receiving the query. The receiver is configured to wirelessly receive data from the second device in response to the query transmitted to the second device. The data indicates whether the second device is (i) busy and cannot currently communicate with the first device or (ii) not busy and can currently communicate with the first device. The processor is configured to determine, based on whether the second device is (i) busy and cannot currently communicate with the first device or (ii) not busy and can currently communicate with the first device, whether to communicate with the second device.

Abstract: A technique relating to hierarchical address assignment in ad hoc networks includes receiving, by a device of an ad hoc network, a request to register in the ad hoc network from an enrollee device. The devices can be wireless mobile devices, and the ad hoc network can be an independent basic service set (IBSS) network. The method also includes responding to the enrollee with information representing (i) an address for the enrollee device, and (ii) a finite quantity of addresses to be assigned to future enrollee devices.