Abstract: An axial piston device for use with a hydraulic system is disclosed. The axial piston device may have a body defining at least one bore and having a central axis, a pump piston disposed within the at least one bore to at least partially define a pumping chamber, and a tiltable plate biased into engagement with the pump piston. The axial piston device may also have an actuator configured to selective tilt the plate relative to the central axis of the body to thereby vary a displacement of the pump piston within the at least one bore. The actuator may have a control piston operatively connected to move the tiltable plate, a rotary motor, and a valve driven by the rotary motor to control fluid communication between the control piston and a source of pressurized fluid to move the control piston.

Abstract: Wireless local area network (WLAN) management. A novel approach is provided to associate various wireless stations (STAs) to the WLAN via appropriately selected Access Point (APs). In one implementation, a first AP services only those STAs that have functionality of a first user class (e.g., 802.11b functionality in one instance). In addition, a second AP services only those STAs that have functionality of a second user class (e.g., 802.11g functionality). The WLAN management ensures that STAs having similar characteristics (or similar functionality) are grouped together and associated with an AP that corresponds to those characteristics. For example, 802.11b STAs associate with the WLAN via an 802.11b AP. Analogously, 802.11g STAs associate with the WLAN via an 802.11g AP. When an 802.11g STA is unable to associate with the WLAN via an 802.11g AP, the STA may shift down its functionality set to 802.11b to successfully associate with the WLAN.

Abstract: A Wireless Local Area Network (WLAN) system in which wireless terminals each operate upon battery power. One of the wireless terminals acts as a Master to coordinate the transmission and receptions of the Slaves so as to reduce the power consumed by all of the devices. The Slaves operate according to a power up and power down sequence to conserve battery power. Further, the terminals may alternate between being Slaves and being the Master to equalize battery consumption of the wireless terminals.

Abstract: A wireless interface device services communications between a wirelessly enabled host and at least one user input device. The wireless interface device includes a wireless interface unit, a processing unit, an input/output unit, and may include a power management unit. The wireless interface unit wirelessly interfaces with the wirelessly enabled host. The processing unit and the wireless interface unit interact to determine when the wireless interface unit has established a link with the wirelessly enabled host. When the wireless interface unit has established a link with the wirelessly enabled host, the processing unit interacts with the input/output unit to direct the input/output unit to output a link established indication. When the wireless interface unit enters a sniff mode or a park mode, a second link established indication may be provided. When the link is taken down or lost, a link non-established indication may be provided.

Abstract: A network interface is presented that receives packet data from a shared medium and accomplishes the signal processing required to convert the data packet to host computer formatted data separately from receiving the data packet. The network interface receives the data packet, converts the analog signal to a digitized signal, and stores the resulting sample packet in a storage queue. An off-line processor, which may be the host computer itself, performs the signal processing required to interpret the sample packet. In transmission, the off-line process converts host-formatted data to a digitized version of a transmission data packet and stores that in a transmission queue. A transmitter converts the transmission data packet format and transmits the data to the shared medium.

Abstract: A secure digital system including a number of ICs that exchange data among each other. Each of the ICs includes a key generator for generating a cipher key; a memory for securely storing the generated cipher key; an authenticating module for authenticating neighboring ICs of a respective IC; an encryption module for encrypting data communicated from the respective IC to the neighboring ICs; and a decryption module for decrypting data received from the neighboring ICs.

Abstract: A system includes a mobile device providing a plurality of applications and an agent providing first and second authentication procedures for authenticating a user of the mobile device to first and second applications running on the mobile device. A first application is enabled by authenticating a user through a first authentication procedure, and a second application is enabled by authenticating a user through a second authentication procedure. The agent authenticates the user to the first application following the first authentication procedure, and the agent authenticates the user to the second application following the second authentication procedure.

Abstract: A method for authenticating a user to a cellular telephone includes providing a cellular telephone, providing a matrix having a plurality of authentication parameters in one dimension and a plurality of applications provided by the cellular telephone in another dimension, associating each of the plurality of applications provided by the cellular telephone with one or more of the plurality of authentication parameters of the matrix and satisfying one or more authentication parameters to provide access to one or more applications to a user of the cellular telephone.

Abstract: Methods and systems are provided that authenticate an intended user of a mobile client in a roaming environment. One embodiment of the invention provides a mobile communication network architecture that includes a first base station (e.g., a first base station controller and/or a first transceiver station), a second base station (e.g., a second base station controller and/or a second transceiver station), a mobile client, and a server coupled to the mobile client via either the first base station controller or the second base station. The first base station is coupled to an authentication center that authenticates an intended user so that the user can communicate a message between the mobile client and the server via the first base station. A credential (or status) of the authentication made at the authentication center is then transmitted from the first base station to the second base station when the mobile client moves to utilize the second base station to communicate with the server.

Abstract: A mobile device capable of performing a plurality of functions. The mobile device includes a memory for storing a plurality of different security policies; an input device for invoking a function from the plurality of functions by a user; a processor for assigning a first security policy from the stored plurality of security policies to the invoked function; and a security module for requiring the user to satisfy the assigned first security policy, before the invoked function is performed by the mobile device.

Abstract: A system for revoking access to a mobile device comprises a mobile device providing a plurality of applications and an agent providing a plurality of revocation procedures for revoking access by the mobile device to the plurality of applications running on the mobile device. Access to a first application is revoked by the agent using a first revocation procedure, and access to a second application is revoked by the agent using a second revocation procedure.

Abstract: A method for revoking access to a mobile device includes providing a plurality of authenticated applications accessible by the mobile device, and providing a plurality of revocation timeout intervals for revoking access by the mobile device to the plurality of authenticated applications. Access to a first authenticated application is revoked after a first timeout interval and access to a second authenticated application is revoked after a second timeout interval.

Abstract: Methods and systems are provided that use information on smartcards, such subscriber identity module (SIM) cards for authentication and encryption. One embodiment of the invention provides a mobile communication network architecture that includes a mobile network, a mobile terminal, a server coupled to the mobile terminal via the mobile network, and a SIM card coupled to the mobile terminal. The SIM card includes a first key and a second key. The first key is used to authenticate an intended user of the mobile terminal to the mobile network and the second key is used to authenticate the intended user to the server.

Abstract: A system for selectively blocking and unblocking the sending of outgoing caller ID information from a communication device comprises a communication device, a processor coupled to the communication device and a storage medium coupled to the processor containing a directory of information entries. The information entries include both telephone numbers and associated security levels. When a call is placed to a number using the communication device, the processor seeks the number in the directory of the storage medium. If an entry is found for the number by the processor, caller ID information is prevented from being sent to the number unless a security level associated with the number is at or above a predefined cut-off level.

Abstract: Methods and systems are provided that use smartcards, such as subscriber identity module (SIM) cards to provide secure functions for a mobile client. One embodiment of the invention provides a mobile communication network system that includes a mobile network, a mobile terminal, a server coupled to the mobile terminal via the mobile network, and a subscriber identity module (SIM) card coupled to the mobile terminal. The SIM card includes a first key and a second key. The first key is used to authenticate an intended user of the mobile terminal to the mobile network. Upon successful authentication of the intended user to the mobile network, the mobile terminal downloads a function offered from the server through the mobile network. The second key is then used by the mobile terminal to authenticate the intended user to the downloaded function so that the intended user can utilize the function.

Abstract: Multi-mode WLAN/PAN MAC. A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.

Abstract: Synchronized UWB piconets for SOP (Simultaneously Operating Piconet) performance. A common backbone (either wired or wireless) is employed that provides a common CLK (clock signal) to all of the various PNCs (piconet coordinators) of various piconets that may operate within a sufficiently close region such that interference could undesirably occur. By providing a very reliable CLK signal from a common backbone to all of the PNCs of the various piconets operating within a substantially close proximity to one another, very precise synchronization may be ensured for all of the communications performed therein. The various piconets may then even operate using TDMA (Time Division Multiple Access)—whose performance would be substantially compromised without effective synchronization. In addition, combined TFC (time frequency code) and TDMA may also be employed to support the communications therein thereby providing even another degree of orthogonality that provided by TDMA alone.

Abstract: A vehicle chassis having substantially all of the mechanical, electrical, and structural componentry necessary for a fully functional vehicle, including at least an energy conversion system, a steering system, and a braking system. The chassis is configured for matability with a variety of different types or styles of vehicle bodies. Various prior art mechanical control linkages between a driver and controlled systems are replaced with non-mechanical control signal transmission components. Fuel cell technology is also implemented. A quick plastic formed (QPF) engineered body floorpan includes formations thereon to provide structural integrity to support body components and acts as an assembly aid. The body floorpan is formed from a single aluminum alloy sheet.

Abstract: A vehicle chassis having substantially all of the mechanical, electrical, and structural componentry necessary for a fully functional vehicle includes at least an energy conversion system, a steering system, and a braking system. The chassis is configured for matability with a variety of different types or styles of vehicle bodies. Various prior art mechanical control linkages between a driver and controlled systems are replaced with non-mechanical control signal transmission components. Fuel cell technology is also implemented. A quick plastic formed (QPF) rigid sheet (belly pan) includes cavities formed therein to facilitate attachment of various components of the energy conversion system, energy storage system, braking system, steering system, etc.

Abstract: A process that achieves a striping or pin-striping or other specified pattern decoration on molded surfaces during manufacturing. This process begins by engraving the stripe or other pattern into the surface of the initial sculpted figurine in the specified area. The stripe engraving or other pattern can be as thick or thin as desired but typically between 0.25 mm to 0.5 mm thick and between 0.1 mm to 1 mm deep below the surface. The stripe pattern is engraved on the surface of the original model master figurine when the figurine is initially sculpted.