Abstract:
A simple and robust CTL is used for time tracking of multipath components of a spread spectrum signal transmitted over a wireless multipath fading channel. A digital code-tracking loop includes the implementations of despreading early and late data samples by use of a pseudonoise sequence, an error signal output generated by the despreading, and adjustment for a plurality of on-time, early and late samples, a data rate of a control signal provided as a fractional proportion of a data rate of error signals.
Abstract:
A preparation method of phenylcarboxamides of formula (I), the reaction scheme of which is as follows: wherein the groups are defined in the description. In this method, 3-halo-1-(3-chloro-2-pyridinyl)-4,5-dihydro-1H-pyrazole-5-carboxylic acid esters (V) as the raw materials are hydrolyzed to obtain carboxylic acids of formula (IV) under a basic condition, and carboxylic acids (IV) are simultaneously acyl halogenated and oxidated to get acyl halide of formula (III), and then without the presence of a acid binging agent, acyl chlorides (III) are reacted with substituted anilines (II) to get phenylcarboxamides of formula (I) in high yield.
Abstract:
An apparatus and method are disclosed for state sharing. A change module detects a change of a configuration state for at least one of a base and a detachable device. A connection module detects a connection between the base and the detachable device. The detachable device provides a display and a network connection for the base if the base and detachable device are connected. A synchronize module synchronizes the configuration state of the detachable device with the configuration state of the base in response to detecting the connection and detecting the change of configuration state.
Abstract:
A ring oscillator is disclosed. The ring oscillator includes a first tri-path inverter, a second tri-path inverter and a third tri-path inverter. The second tri-path inverter is connected to the first tri-path inverter. The third tri-path inverter is connected to the first and second tri-path inverters to provide feedback for oscillations.
Abstract:
An Instant Messaging (IM) method and server are provided. The method includes: receiving instance login information sent by an IM client, wherein the instance login information at least includes login information of a user of the IM client and instance information of a terminal located by the IM client (101); authenticating identity of the user of the IM client, according to the login information in the instance login information (102); when the authenticating is passed, allocating an instance number for the IM client, according to the instance information in the instance login information, wherein the instance number is configured to uniquely identify the IM client (103). The server includes a receiving module (801), an authenticating module (802) and an allocating module (803). By adopting the method and server provided, multipoint login of one login account may be effectively achieved, and multiple aspects requirements of a user may be satisfied.
Abstract:
The present invention discloses a method and an apparatus for migrating a Sub-Network Connection Protection (SNCP) service. The method comprises: receiving a migration request of an SNCP service, wherein the migration request comprises one of: Permanent Connection (PC) to Soft Permanent Connection (SPC) migration, SPC to PC migration; respectively setting cross status control bits of a current operation connection and a correlative connection thereof according to the received migration request, and performing collective migration of the current operation connection and the correlative connection thereof according to the set cross status control bits; respectively modifying the cross status control bits of the current connection and the correlative connection thereof according to the migration result. The consistency of cross management authorities of a working connection and a protection connection of the SNCP service migration can be ensured by the present invention.