Abstract: Cordless communication techniques for cordless communication devices having a handset unit and a base unit are provided. Such techniques can utilize a modulation method for Frequency Division Duplex/Time Division Duplex (FDD/TDD) that overcomes deficiencies of prior art devices, for example, by eliminating the need for a burst mode controller for both Frequency Division Duplex and Time Division Duplex, as well as surface acoustic wave bandpass filters and dielectric low pass filters.

Abstract: A system and method for signal transmission and reception by narrow band chaotic bi-phase shift keying includes a forward error correction encoder for receiving input data, a data packetizer in signal communication with the forward error correction encoder, a compression encoder in signal communication with the data packetizer, a radio frequency link in signal communication with the compression encoder, a compression decoder in signal communication with the radio frequency link, a data depacketizer in signal communication with the compression decoder, and a forward error correction decoder in signal communication with the data depacketizer for recovering the input data by controlling the orbits of chaos; where the method includes the steps of transmitting a signal indicative of chaotic bi-phase shift keyed data, propagating the transmitted signal within a narrow frequency band, and receiving the propagated signal substantially without degradation of the indicated data by controlling the orbits of chaos.

Abstract: There is provided a system for integrating at least one residential Plain Old Telephone System (POTS) phone to a cellular phone network. A Subscriber Line Interface Circuit (SLIC 120) interfaces audio from the cellular phone network to the at least one residential POTS phone. A line switcher (122), connected to the SLIC, connects the at least one residential POTS phone to any one of a POTS line or a cellular line. An audio gateway (116), connected to the SLIC, wirelessly receives the audio from a cellular phone connected to the cellular phone network for subsequent transmission to the at least one residential phone and wirelessly transmits the audio from the POTS line to the cellular phone.

Abstract: A time division duplex (TDD) single sideband (SSB) transceiver includes a transmitter adapted to input an analog audio signal, sample the analog audio signal, and to output an SSB frequency shift keyed (FSK) signal corresponding to the analog audio signal, the SSB FSK signal including analog information. A receiver is adapted to switch between receiving one of an upper sideband and a lower sideband of an external SSB signal.

Abstract: There is disclosed a method for preparing allicin which comprises the following steps: (a) mechanically treating a natural source of alliinase to release alliinase therefrom; (b) contacting the mechanically treated alliinase source with an aqueous solution of allicin containing alliin at a concentration greater than that found in raw garlic, whereby the alliin is enzymatically converted to allicin by the alliinase released from the alliinase source; and optionally (c) extracting the resultant allicin into a low boiling point non-polar organic solvent.

Abstract: A voltage controlled Colpitts type crystal oscillator includes a first crystal and a transistor coupled to the first crystal to provide positive feedback for generating an output oscillatory signal. A variable capacitance is coupled to the first crystal for producing a change in a frequency of the oscillatory signal when a corresponding change in the variable capacitance occurs. A first inductance is coupled in a resonant circuit that includes the variable capacitance and the first crystal having a value selected to provide a pulling range of at least 0.4% with respect to the frequency of the oscillatory signal. In one embodiment of the invention, a second crystal is coupled to the first crystal and included in the resonant circuit. An energy dissipating impedance is coupled in the resonant circuit to the first crystal for decreasing a Q characteristic of the first crystal to increase the pulling range of the oscillator.

Abstract: A system and method for signal transmission and reception by narrow band chaotic frequency shift keying includes a forward error correction encoder for receiving input data, a data packetizer in signal communication with the forward error correction encoder, a compression encoder in signal communication with the data packetizer, a radio frequency link in signal communication with the compression encoder, a compression decoder in signal communication with the radio frequency link, a data depacketizer in signal communication with the compression decoder, and a forward error correction decoder in signal communication with the data depacketizer for recovering the input data by controlling the orbits of chaos; where the method includes the steps of transmitting a signal indicative of chaotic frequency shift keyed data, propagating the transmitted signal within a narrow frequency band, and receiving the propagated signal substantially without degradation of the indicated data by controlling the orbits of chaos.

Abstract: A crystalline form of the compound 1-[2-(2,4-difluorophenyl)-oxiranyl methyl]-1H-1,2,4-triazole and a process for preparing the form. The crystalline form can be used for preparing fluconazole.

Abstract: An analog cordless telephone has a handset and a base. The handset and/or the base of the telephone may include the following components. A phase locked loop (PLL) and a voltage controlled oscillator (VCO), adapted to be shared between a receive path and a transmit path. A first analog gate is adapted to gate a received audio signal on and off, in response to a clock signal. A second analog gate is adapted to gate a transmit audio signal on and off, in response to an inverted version of the clock signal. The transmit audio signal is enabled when the received audio signal is gated off, and the VCO is further adapted to be modulated by the enabled transmit audio signal to output a modulated RF signal.

Abstract: Variable Aperture Coded (VAC) signals for VAC modulation are advantageously generated by a digital signal processor (12) that yields a VAC signal having a single narrow peak in the positive frequency region. A Discrete-Time Hilbert transformer (12) isolates only the positive spectral peaks, thus yielding a VAC signal that affords greater control over zero crossings.

Abstract: An asynchronous transfer mode digital document delivery system is provided. A customer premise unit is configured to permit a customer to order and receive a data stream. A buffer is coupled to the customer premise unit to store the data stream before transmitting the data stream to a customer. A server includes digital documents stored thereon for delivery to customers through a switched ATM network. A control mechanism is employed to control a data rate of the data stream between the server and the buffer to ensure maintenance of a steady data stream from the customer premise unit to a customer during a loss of a physical layer between the server and the customer premise unit.

Abstract: The present invention relates to a chimera ? BNAC of SEQ ID No.1 and a corresponding chimeric protein ? BNAC crystallin of SEQ ID No. 2, with said chimeric protein having extraordinarily high chaperone-like activity and a method of preventing protein aggregation using said chimeric protein.

Abstract: The present invention relates to the process of preparation and characterization of novel sodium superionic conductor (NASICON) type niobium aluminium phosphate of formula Cu0.5NbAlP3O12 (CNP), HNbAlP3O12(HNP) and to study its Electron Spin Resonance (ESR) and Photo Acoustic (PA) spectra.

Abstract: A digital data modulator is coupled to a source of a digital data signal. An encoder encodes the digital data using a variable pulse width code. A pulse signal generator generates pulses representing edges of the encoded digital data signal. A carrier signal generator generates a carrier signal having carrier pulses corresponding to the pulses from the pulse signal generator. A corresponding digital data demodulator is coupled to a source of a modulated signal having carrier pulses spaced relative to each other to represent a variable pulse width encoded digital data signal. A detector generates a variable pulse width encoded signal in response to received carrier pulses. A decoder decodes the variable pulse width encoded signal to generate the digital data signal.

Abstract: An FM broadcast transmitter transmits a broadcast signal having a carrier at a broadcast frequency and sidebands, able to be transmitted at full power, within a transmission band-width around the carrier. It includes a source of a modulated FM stereo signal having a carrier at the broadcast frequency and having sidebands with a bandwidth less than the transmission bandwidth representing a stereo signal. It also includes a source of a modulated IBOC signal, having carrier pulses spaced relative to each other to represent the IBOC digital data signal encoded as a variable pulse width encoded signal, and a bandwidth within the transmission bandwidth not overlapping the FM stereo signal sidebands. A signal combiner combines the modulated FM stereo signal and the modulated IBOC signal to form the broadcast signal.

Abstract: There is disclosed a method for preparing allicin which comprises the following steps: (a) mechanically treating a natural source of alliinase to release alliinase therefrom; (b) contacting the mechanically treated alliinase source with an aqueous solution of alliin containing alliin at a concentration greater than that found in raw garlic, whereby the alliin is enzymatically converted to allicin by the alliinase released from the alliinase source: and optionally (c) extracting the resultant allicin into a low boiling point non-polar organic solvent.

Abstract: An FM broadcast transmitter transmits a broadcast signal having a carrier at a broadcast frequency and sidebands, able to be transmitted at full power, within a transmission band-width around the carrier. It includes a source of a modulated FM stereo signal having a carrier at the broadcast frequency and having sidebands with a bandwidth less than the transmission bandwidth representing a stereo signal. It also includes a source of a modulated IBOC signal, having carrier pulses spaced relative to each other to represent the IBOC digital data signal encoded as a variable pulse width encoded signal, and a bandwidth within the transmission bandwidth not overlapping the FM stereo signal sidebands. A signal combiner combines the modulated FM stereo signal and the modulated IBOC signal to form the broadcast signal.

Abstract: A system (110) and method for signal transmission and reception by narrow band chaotic bi-phase shift keying includes a forward error correction encoder (118) for receiving input data, a data packetizer (120) in signal communication with the forward error correction encoder, a compression encoder (122) in signal communication with the data packetizer, a radio frequency link (114) in signal communication with the compression encoder, a compression decoder (124) in signal communication with the radio frequency link, a data depacketizer (126) in signal communication with the compression decoder, and a forward error correction decoder (128) in signal communication with the data depacketizer for recovering the input data by controlling the orbits of chaos; where the method includes the steps of transmitting a signal indicative of chaotic bi-phase shift keyed data, propagating the transmitted signal within a narrow frequency band, and receiving the propagated signal substantially without degradation of the indicate

Abstract: A system (110) and method for signal transmission and reception by narrow band chaotic frequency shift keying includes a forward error correction encoder (118)for receiving input data, a data packetizer (120) in signal communication with the forward error correction encoder, a compression encoder (122) in signal communication with the data packetizer, a radio frequency link (114) in signal communication with the compression encoder, a compression decoder (124) in signal communication with the radio frequency link, a data depacketizer (126) in signal communication with the compression decoder, and a forward error correction decoder (128) in signal communication with the data depacketizer for recovering the input data by controlling the orbits of chaos; where the method includes the steps of transmitting a signal indicative of chaotic frequency shift keyed data, propagating the transmitted signal within a narrow frequency band, and receiving the propagated signal substantially without degradation of the indicat

Abstract: A variable aperture coding/decoding system suitable for use in a spread spectrum system provides multiple phase coding of an input NRZ bitstream. Each bit of a coded output signal is coded to encompass a predetermined different number of clock periods depending on the logic level of the input signal. A coded bit exhibits a predetermined reference number of clock periods, eg., 9, when the input signal does not exhibit a logic level transition. When the input signal exhibits a phase change from a 0 to a 1 logic level, the bit width of an associated coded bit is increased by 1 clock period, to 10 clock periods. When the input signal exhibits a phase change from a 1 to a 0 logic level, the bit width of an associated coded bit is decreased by 1 clock period, to 8 clocks periods. Thus the coded output signal may contain three types of information represented by a bit width change proportional to predetermined factor N.