Patent application number | Description | Published |
20100190517 | PULSE COUPLED OSCILLATOR SYNCHRONIZATION FOR WIRELESS COMMUNICATIONS - A transceiver node includes a pulse coupled oscillator in an integrated circuit, which can synchronize with other nodes to generate a global clock subsequently used to facilitate synchronous communications between individual nodes. Known potential uses include a low power sensor node radio for an ad-hoc network for military applications and medical applications such as ingestible and implantable radios, self powered radios, and medical monitoring systems such as cardiac and neural monitoring patches. | 07-29-2010 |
20110261859 | SYSTEMS AND METHODS FOR PCO BASED UWB IMPULSE RADIO WITH LOCALIZED SYNCHRONIZATION DETECTION AND RETENTION - The present invention provides a communications system, node and method of operation for forming a wireless network from independently operating nodes that have the ability to self-synchronize with each other, independently determine master and slave modes of operation to cooperate as a network, and independently vary those functions to adjust to changes in the network. | 10-27-2011 |
20120062974 | APPARATUS AND METHODS FOR WIDE TEMPERATURE RANGE OPERATION OF MICROMETER-SCALE SILICON ELECTRO-OPTIC MODULATORS - A thermally stabilized, high speed, micrometer-scale silicon electro-optic modulator is provided. Methods for maintaining desired temperatures in electro-optic modulators are also provided. The methods can be used to maintain high quality modulation in the presence of thermal variations from the surroundings. Direct current injection into the thermally stabilized electro-optic modulator is used to maintain the modulation performance of the modulator. The direct injected current changes the local temperature of the thermally stabilized electro-optic modulator to maintain its operation over a wide temperature range. | 03-15-2012 |
20130121380 | METHODS FOR PCO BASED UWB IMPULSE RADIO WITH LOCALIZED SYNCHRONIZATION DETECTION AND RETENTION - The present invention provides a communications system, node and method of operation for forming a wireless network from independently operating nodes that have the ability to self-synchronize with each other, independently determine master and slave modes of operation to cooperate as a network, and independently vary those functions to adjust to changes in the network. | 05-16-2013 |
20130155904 | METHODS AND APPARATUS FOR EVENT DETECTION, PROPAGATION AND LOCALIZATION USING UWB IMPULSE RADIOS - A distributed wireless sensor network includes two or more wireless nodes adapted for sensing a condition at any first node, first programming located within each node for transmitting a signal representing the sensed condition from the first node to another node, second programming located within each node for receiving the signal transmitted from any other node and for retransmitting a received signal representing the sensed condition along with additional data indicating the number of retransmissions of the signal between nodes. | 06-20-2013 |