Abstract: Systems and methods are provided for enabling communications over a wide area network and a local area network, wherein one or more computing devices may communicate with a wireless router over the local area network, and wherein the one or more computing devices may obtain access to the wide area network if authorized. Authorization of the one or more computing devices can be dependent upon discovery of the one or more computing devices, as well as a device type of the one or more computing devices. Authorization may also involve discovering a service being run or requested by the one or more computing devices, and determining whether the type of service being run or requested by the one or more computing devices is authorized by the wide area network.

Abstract: Systems and methods are provided for enabling communications over a wide area network and a local area network, wherein one or more computing devices may communicate with a wireless router over the local area network, and wherein the one or more computing devices may obtain access to the wide area network if authorized. Authorization of the one or more computing devices can be dependent upon discovery of the one or more computing devices, as well as a device type of the one or more computing devices. Authorization may also involve discovering a service being run or requested by the one or more computing devices, and determining whether the type of service being run or requested by the one or more computing devices is authorized by the wide area network.

Abstract: Embodiments of the invention provide for methods and apparatus for fragmenting a single message and sending the message fragments over multiple independent networks to a single receiving unit. The receiving unit then reassembles the message fragments to generate the original message. One embodiment of an apparatus according to the invention is a wireless radio frequency modem that can both receive and transmit fragmented messages over multiple independent networks.

Abstract: Embodiments of the invention provide for methods and apparatus for fragmenting a single message and sending the message fragments over multiple independent networks to a single receiving unit. The receiving unit then reassembles the message fragments to generate the original message. One embodiment of an apparatus according to the invention is a wireless radio frequency modem that can both receive and transmit fragmented messages over multiple independent networks.

Abstract: A method of secure communication between a wireless device and a target network is presented, comprising receiving a communication addressed to a target network, the communication comprising a data payload and originating from a wireless device on a trusted wireless network, establishing a virtual private network (VPN) session with the target network and sending the communication to the target network over the secure channel. The method can further comprise negotiating secure channel parameters with the target network, encrypting the data payload, adding data integrity protection to the communication, encapsulating the communication according to a VPN protocol, authenticating the wireless device as an authorized user of the private network and granting access to a target network resource.

Abstract: Embodiments of the invention provide for methods and apparatus for fragmenting a single message and sending the message fragments over multiple independent networks to a single receiving unit. The receiving unit then reassembles the message fragments to generate the original message. One embodiment of an apparatus according to the invention is a wireless radio frequency modem that can both receive and transmit fragmented messages over multiple independent networks.

Abstract: Embodiments of the invention provide for methods and apparatus for fragmenting a single message and sending the message fragments over multiple independent networks to a single receiving unit. The receiving unit then reassembles the message fragments to generate the original message. One embodiment of an apparatus according to the invention is a wireless radio frequency modem that can both receive and transmit fragmented messages over multiple independent networks.

Abstract: The present invention provides for a wireless radio frequency (“RF”) modem that plugs into a host computer and shares a central processing unit and memory with the host computer, wherein principal modem functions are distributed between the modem and the host computer. In one embodiment, the modem performs RF conversion, and the host computer performs baseband processing and protocol stack control. In another embodiment, the modem performs RF conversion and baseband processing, and the host computer performs protocol stack control.

Abstract: The present invention provides for a wireless radio frequency (“RF”) modem that plugs into a host computer and shares a central processing unit and memory with the host computer, wherein principal modem functions are distributed between the modem and the host computer. In one embodiment, the modem performs RF conversion, and the host computer performs baseband processing and protocol stack control. In another embodiment, the modem performs RF conversion and baseband processing, and the host computer performs protocol stack control.

Abstract: The present invention provides for a wireless radio frequency (“RF”) modem that plugs into a host computer and shares a central processing unit and memory with the host computer, wherein principal modem functions are distributed between the modem and the host computer. In one embodiment, the modem performs RF conversion, and the host computer performs baseband processing and protocol stack control. In another embodiment, the modem performs RF conversion and baseband processing, and the host computer performs protocol stack control.

Abstract: The present invention provides for methods and apparatus for fragmenting a single message and sending the message fragments over multiple independent networks to a single receiving unit. The receiving unit then reassembles the message fragments to generate the original message. The preferred apparatus embodiment is a wireless radio frequency modem that can both receive and transmit fragmented messages over multiple independent networks.

Abstract: The present invention provides for a wireless radio frequency (“RF”) modem that plugs into a host computer and shares a central processing unit and memory with the host computer, wherein principal modem functions are distributed between the modem and the host computer. In one embodiment, the modem performs RF conversion, and the host computer performs baseband processing and protocol stack control. In another embodiment, the modem performs RF conversion and baseband processing, and the host computer performs protocol stack control.

Abstract: The present invention provides for a software configurable wireless modem that can be configured using software downloaded by a host computer. The user can select a preferred mode of operation, or mode selection can be done automatically based upon whether one or more predetermined criterion, such as a location of the modem, are met.

Abstract: A method and apparatus is provided for reducing or eliminating the transmitter signal leakage, i.e., transmitter noise, in the receiver path of an RF communications system operating in full duplex mode. In an embodiment of the present invention, a noise cancellation loop produces an estimated transmitter signal leakage and cancels it from the receiver path to produce a received signal with little or no transmitter noise. Some of the advantages are that there is significant improvement in the isolation between the transmitter/receiver circuits, the size of the RF communications circuitry may be reduced, and the RF transmit module along with the RF receive module may be incorporated into a single RF IC chip.

Abstract: A new radio frequency transceiver architecture comprises a combination of direct digital synthesis and digital control functions to control dual switched capacitor filters in order to perform radio frequency conversion directly to and from baseband.

Abstract: The present invention is directed at a method and apparatus for updating a detachable software configurable wireless radio frequency modem that uses operating software. The RF modem uses an attached host computing device to download an operating software update to the RF modem's memory to reconfigure the RF modem. There is also a recovery feature that allows the original version of the RF modem's operating software to be saved and recovered if an attempt to update the RF modem's operating software is unsuccessful.

Abstract: The present invention provides for a wireless radio frequency (“RF”) modem that plugs into a host computer and shares a central processing unit and memory with the host computer, wherein principal modem functions are distributed between the modem and the host computer. In one embodiment, the modem performs RF conversion, and the host computer performs baseband processing and protocol stack control. In another embodiment, the modem performs RF conversion and baseband processing, and the host computer performs protocol stack control.

Abstract: A method and apparatus is provided for reducing or eliminating the transmitter signal leakage, i.e., transmitter noise, in the receiver path of an RF communications system operating in full duplex mode. In an embodiment of the present invention, a noise cancellation loop produces an estimated transmitter signal leakage and cancels it from the receiver path to produce a received signal with little or no transmitter noise. Some of the advantages are that there is significant improvement in the isolation between the transmitter/receiver circuits, the size of the RF communications circuitry may be reduced, and the RF transmit module along with the RF receive module may be incorporated into a single RF IC chip.

Abstract: The present invention provides for a software configurable wireless modem that can be configured using software downloaded by a host computer. The user can select a preferred mode of operation, or mode selection can be done automatically based upon whether one or more predetermined criterion, such as a location of the modem, are met.