Broadcom Corporation

Widcomm, Inc.

Ethernom, Inc.

Lyn Phuong Nguyen

Martin Morris

Rajiv Kumar

Hiep Pham

Ulrich Franz Buddemeier

Orang Dialameh

Lun Feng Tan

Alexandre Charapov

Hock Thye Law

Tim Dorcey

Imraan Ahmed

Systems, devices, and methods for secure data management and transfer for secure data transactions are provided. For example, disclosed herein are secure & tamper resistant smart cards configured to immutably store data and securely exchange at least a portion of the data via, for example, wireless networks and/or peer-to-peer networks. The smart cards comprise a plurality of dedicated hardware circuit blocks electrically coupled via a bus interconnection, the plurality of dedicated hardware circuit blocks configured to authenticate users, verify trust amongst the smart card and external devices, and encrypt sensitive data for secure transmission.

Secure tamper resistant smart card

A data communication system capable of forwarding IP-addressed data to devices as such devices move among networks having different IP addresses is disclosed herein. The system includes first and second networks containing first and second pluralities of nodes. At least one of the first plurality of nodes is adapted to receive data transmissions from an external IP-based network. Upon joining the first network, this device is assigned an IP address which remains with it irrespective of whether it moves beyond the range of the first network. When this device roams into the vicinity of the second network, data addressed to the device which is received at the first network is forwarded via at least one node of the second network to the roaming device.

Utilization of the internet protocol to facilitate communication involving mobile devices

A data communication system capable of forwarding IP-addressed data to devices as such devices move among networks having different IP addresses is disclosed herein. The system includes first and second networks containing first and second pluralities of nodes. At least one of the first plurality of nodes is adapted to receive data transmissions from an external IP-based network. Upon joining the first network, this device is assigned an IP address which remains with it irrespective of whether it moves beyond the range of the first network. When this device roams into the vicinity of the second network, data addressed to the device which is received at the first network is forwarded via at least one node of the second network to the device.

A method and apparatus for internetworked communication between first and second wireless networks containing first and second pluralities of wireless nodes, respectively, is disclosed herein. In a preferred implementation an internetworking node participates in both the first and second wireless networks, and receives a first set of network information identifying each of the first plurality of wireless nodes and the services offered thereby. The internetworking node is configured to transmit the first set of network information to a master node of the second wireless network. The internetworking node also receives, from the second wireless network, a second set of network information identifying each of the second plurality of wireless nodes and the services offered thereby. In addition, the internetworking node may also transmit the second set of network information to a master node of the first wireless network. The first master node may be configured to broadcast information relating to the services offered by each of the first plurality of wireless nodes and the second wireless network. Likewise, the second master node may be configured to broadcast information relating to the services offered by each of the second plurality of wireless nodes and the second wireless network. In a preferred embodiment each of the first plurality of wireless nodes transmits an advertisement to the first master node specifying its address and services offered thereby. Similarly, each of the second plurality of wireless nodes transmits an advertisement to the second master node specifying its address and services offered thereby.

Distributed management of an extended network containing short-range wireless links

A method and apparatus for internetworked communication between first and second wireless networks containing first and second pluralities of wireless nodes, respectively, is disclosed herein. In a preferred implementation a first dual-power node participates in both a first wireless network and an overlay network. The dual-power node is configured to transmit and receive in both a high-power mode and a low-power mode. The dual-power node operates in an overlay network and facilitates data transmission between low-power nodes and high-power nodes by toggling between these two power modes. In a preferred implementation, a third wireless network containing a third plurality of wireless nodes is utilized. The overlay network can accommodate a plurality of high-power or dual-power nodes.

Growing community of inventors

San Diego, CA, United States of America

Lyn Phuong Nguyen