摘要:
A method of inhibiting the 5-lipoxygenase pathway in an animal in need thereof which comprises administering an effective, 5-lipoxygenase pathway inhibiting amount of a diaryl-substituted imidazole fused to a thiazole pyrrolidine, thiazide or piperidine ring to such animal.
摘要:
Novel compounds, pharmaceutical compositions and a method of inhibiting the 5-lipoxygenase products in an animal in need thereof which comprises administering an effective, 5-lipoxygenase pathway inhibiting amount of a 2,2'-[1,2-ethanediylbis-(thio)]-bis-1H-imidazole or 2,2'-[(1,3-propan-2-onediylbis-(thio)]bis-1H-imidazole, or a pharmaceutically acceptable salt thereof, to such animal.
摘要:
8-Alkyl and alkenyl-10-hydroxy-5H[1]benzopyranopyridines are prepared by dehydrogenation of the corresponding N-benzyl or N-hydrogen-8-alkyl or alkenyl-1,2,3,4-tetrahydro-5H[1]benzopyranopyridines in a high boiling solvent in the presence of a noble metal dehydrogenation catalyst. Alkyl derivatives of 5-11 carbon atoms are particularly useful. Also the O-acetyl derivatives are very useful. The compounds are central nervous system depressants and animal polyphagic agents.
摘要:
A novel key management approach is provided for securing communication handoffs between and access terminal and two access points. This approach provides for securely handing off communications between an access terminal and access point without risking exposure a master key for the access terminal. Temporary master keys are derived for low latency handoffs and secure authentication between a new access point and the access terminal. In one aspect, a distributive key management scheme is provided in which a current access point generates a new security key (based on its own security key) that is used by the next access point with which an access terminal communicates. In another aspect, a centralized key management scheme is provided in which a central authenticator maintains, generates, and distributes new security keys (based on a master security key associated with the access terminal) to access points.
摘要:
Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.
摘要:
A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile station deteriorates before the mobile station has received the handoff direction message. The mobile station maintains a list of base stations that the mobile station is in communication with, referred to as an “Active Set”. In addition, the mobile station maintains another list of base stations that are proximate to the base stations in the active set. This list is referred to as the “Neighbor Set”. In accordance with the disclosed method and apparatus, the mobile station places a base station in the active set upon including the base station in a pilot strength measurement message (PSMM). The mobile station monitors transmissions from all of the base stations on the active set to receive a handoff direction message (HDM).
摘要:
Methods and apparatus for communicating packets of information from an access terminal to a remote access node assembly by way of a serving access node assembly are described. An inter-route tunneling protocol module which interfaces with a radio link protocol module is used to tunnel route protocol packets. A first radio link protocol stream is associated with an application resident on the access terminal. A second radio link protocol stream is associated with an inter-route tunneling protocol module. Information to be communicated to a remote access node assembly by way of a serving access node assembly is subjected to two different radio link protocol processing operations. A first one of the RLP processing operations corresponds to the remote access node assembly while the second RLP processing operation corresponds to the serving access node assembly.
摘要:
In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
摘要:
In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
摘要:
Methods and apparatuses are provided that may be implemented in various electronic devices to identify at least one current interest topic associated with message content transmitted over a wireless communication network, and affect programming of at least a portion of content for transmission over a multicast network based, at least in part, on the current interest topic.