A method of communication that includes transmitting a communication signal having a synchronization preamble from a first node. Setting a local clock of at least one second node pursuant to the synchronization preamble to synchronize communications between the first and at least one second node. Exchanging subsequent data communications between the first and at least one second node without additional preambles until a special switch point occurs and after the special switch point occurs, trans...

A method is provided for operating a dual-use wireless device. The method includes: receiving an external timing signal at a first wireless circuit in the device; synchronizing a first clock in the first wireless circuit with the external timing signal; sending a first internal timing signal from the first wireless circuit to a second wireless circuit in the device, after the synchronizing; and listening for a remote periodic control signal at the second wireless circuit for a set monitoring tim...

A method and apparatus for providing clock synchronization of 1394 buses having wireless devices utilizing 802.11 communication with computers attached to one or more 1394 buses, include the steps of synchronizing an internal time base of a wireless master device attached to a first bus by receiving a Software Beacon Alert that indicates a time of a subsequent transmission, and applying the Software Beacon Alert to a first phase-lock loop circuit associated with the master device to create a fil...

Novel proteins capable of binding to bacterial cellulose synthase are provided. Proteins that co-purify with bacterial cellulose synthase and have approximate relative molecular weights of 20 kDa, 54 kDa and 59 kDa are taught. Also provided for are nucleotide sequences encoding the proteins, antibodies to the proteins, and recombinant host cells for the expression of the cellulose synthase associated (co-purifying) proteins. The cellulose synthase associated proteins (CSAPs) CSAP20 (SEQ ID NO: 1...

The invention herein is directed to methods using Procion dyes to perform separations of interest in manipulating the NAD.sup.+ -independent ribotoxins. The methods are useful for preparing therapeutic agents contaning these ribotoxins of their A polypeptide components. This separation method has been applied in particular to preparing hybrid toxins containing ricin toxins, both of purifying the resulting products and also for separating the components intended to be used in the preparation of t...

Optical processing using photorefractive GaAs and other compound semiconductor crystals (28) is achieved in a four-wave mixing configuration. Potential applications of optical processing include spatial light modulation, phase conjugation, correlation, convolution, edge enhancement, matrix multiplication, incoherent-to-coherent conversion, and many others. In particular embodiments, optical processing, matrix multiplication, and integrated semiconductor optical information processors are demonst...

A method and apparatus for controlling the polarization of an optical signal has many applications, including in coherent systems, e.g. heterodyne detectors. Four birefringent elements (19, 21, 23, 25) in series are arranged to rotate the state of polarization (SOP) alternately about orthogonal axes on a Poincare sphere. A controller enables time varying initial and final polarization states (S, S') to be tracked. It also ensures that the birefringence limits of the elements are never reached by...

A method for handling timers in a wireless communications system includes receiving a Service Data Unit (SDU) and starting a Timer_Discard timer associated with the SDU, performing a reset procedure for a Radio Link Control Acknowledged Mode entity, and not stopping the Timer_Discard timer if the SDU is not discarded in response to the reset procedure.

In a communications or jamming system, accurate timing of the transmission of digitally processed signals is accomplished through the use of standard off-the-shelf components. In order to eliminate the need for high-cost, difficult to develop, specific digital hardware or realtime synchronous software not available from the standard off-the-shelf components, the output from the non-real time components is coupled to a realtime interface that assures nanosecond timing accuracy regardless of timin...

In a communications or jamming system, accurate timing for the control of the frequency, amplitude, modulation type, pulse repetition rate or other transmit characteristics is achieved for the transmission of digitally processed packetized signals through the use of standard non-realtime off-the-shelf components for the digital processing and a realtime interface which reads transmit chain headers and, with the assistance of a precise time reference, assures that the transmit chain is configured...