Abstract: A blue phase liquid crystal composition includes a chiral dopant, a positive liquid crystal component and a negative liquid crystal component. The positive liquid crystal component includes at least one positive liquid crystal material, has a positive dielectric anisotropy and has no blue phase properties with respect to the chiral dopant. In addition, the negative liquid crystal component includes at least one negative liquid crystal material, has a negative dielectric anisotropy and has no blue phase properties with respect to the chiral dopant, so that the blue phase liquid crystal composition has a dielectric anisotropy between 0.5 and 14 and a blue phase temperature range larger than 3° C.

Abstract: A connector assembly adapted to be used in a wrist watch which has data transmission and storage functions, includes a connector including an insulating body and a plurality of terminals each having a soldering tail, and a FPC board acted as a watchstrap of the wrist watch or attached on an initial watchstrap of the wrist watch to electrically connect the connector and a circuit of the wrist watch. Wherein the soldering tails of the terminals are embedded in one end of the FPC board at regular intervals by means of solder press welding, then the one end of the FPC board together with the soldering tails of the terminals are molded in the insulating body as an integral, and the other end of the FPC board is electrically connected with the circuit of the wrist watch.

Abstract: An RC filter is calibrated to a desired cutoff frequency by initializing the filter with a cutoff frequency. An input signal is filtered by the RC filter to provide a filter output signal having phase and frequency values. The cutoff frequency of the RC filter is adjusted based on the phase and frequency values of the filter output signal if the phase and frequency values do not satisfy a predetermined condition. The filtering and adjusting are repeated until the phase and frequency values of the filter output signal satisfy the predetermined condition. A calibration apparatus has a frequency generator, a resistor-capacitor (RC) filter, a phase comparator, a frequency detector, and a state machine. The phase comparator, frequency detector, and state machine are configured to calibrate the RC filter to a cutoff frequency specified by the reference signal based on a filter output signal of the RC filter.

Abstract: A blue phase liquid crystal composition includes a chiral dopant, a positive liquid crystal component and a negative liquid crystal component. The positive liquid crystal component includes at least one positive liquid crystal material, has a positive dielectric anisotropy and has no blue phase properties with respect to the chiral dopant. In addition, the negative liquid crystal component includes at least one negative liquid crystal material, has a negative dielectric anisotropy and has no blue phase properties with respect to the chiral dopant, so that the blue phase liquid crystal composition has a dielectric anisotropy between 0.5 and 14 and a blue phase temperature range larger than 3° C.

Abstract: A filter auto-calibration system includes a multi-clock module. The multi-clock module includes a multi-clock generator that is configured to generate a clock signal with a variable frequency based on a channel setting. There is at least one filter to be calibrated. An auto-calibration control module is configured to control calibration of the at least one filter based on the channel setting. The multi-clock module is configured to supply the variable frequency clock signal to the at least one filter and to the auto-calibration control module, and the at least one filter is coupled to the auto-calibration control module.

Abstract: A nail gun includes a body, a handle connected fixedly to and extending laterally from the body, a nail ejecting member disposed on the body and formed with a nail discharging passage having opposite inlet and outlet ends, a magazine member connected to the nail ejection member, and an elongated nail guiding plate disposed within the nail discharging passage, and a driving member. The nail guiding plate has a pivot end disposed pivotally within the inlet end of the nail discharging passage, a free end disposed within the outlet end of the nail discharging passage, and a driven portion disposed between the pivot end and the free end. The driving member is connected to the driven portion of the nail guiding plate for driving the free end of the nail guiding plate to pivot between first and second positions.

Abstract: An RC filter is calibrated to a desired cutoff frequency by initializing the filter with a cutoff frequency. An input signal is filtered by the RC filter to provide a filter output signal having phase and frequency values. The cutoff frequency of the RC filter is adjusted based on the phase and frequency values of the filter output signal if the phase and frequency values do not satisfy a predetermined condition. The filtering and adjusting are repeated until the phase and frequency values of the filter output signal satisfy the predetermined condition. A calibration apparatus has a frequency generator, a resistor-capacitor (RC) filter, a phase comparator, a frequency detector, and a state machine. The phase comparator, frequency detector, and state machine are configured to calibrate the RC filter to a cutoff frequency specified by the reference signal based on a filter output signal of the RC filter.

Abstract: A system and method organize a network of communicating objects in at least one partition comprising a plurality of communication cells respectively covered by a plurality of leader nodes, the network having a set of allocatable addresses split into a plurality of address pools distributively managed by the leader nodes. Upon a new node arrival, phase (a) and possibly phase (b) are executed. During phase (a), if the new node detects a leader node, it allocates an address from its managed address pool and the new node assumes a member node roll in the leader node cell. If the new node does not detect any leader node in its vicinity, it goes on to the phase (b), wherein, if the new node detects a first cell member node, it assumes the role of leader covering a second cell, obtains an available pool of managed addresses and is allocated one of the obtained addresses.

Abstract: A nail gun includes a body, a handle, a nail ejection member, a magazine member connected pivotally to the nail ejection member, and a connecting rod having an upper end connected pivotally to an end of the handle. One of the connecting rod and the magazine member is connectable with a selected one of first and second positioning portions of the other of the connecting rod and the magazine member to allow the magazine member to change between horizontal and inclined positions. In the horizontal position, a free end of the magazine member is spaced apart from the end of the handle. In the inclined position, the free end of the magazine member is adjacent to the end of the handle, and the connecting rod abuts against the magazine member along a full length thereof.

Abstract: A nail gun includes a body, a handle, a nail ejection member, and a nail magazine unit. The nail magazine unit includes two parallel cranks connected pivotally to the nail ejection member, and a link having two ends connected respectively and pivotally to free ends of the cranks.

Abstract: A hinge includes a housing. A sliding cam slideably received in the housing defines concave portions and an axial hole. A rotatable cam mating with the sliding cam has a base portion extending downward to form pushing portions disposed in the concave portions. The base portion defines an accommodating hole. A spring is slideably received in the housing. One end of the spring is fixed on the sliding cam and the other end of the spring is fixed at an end of the housing. A shaft received in the housing runs through the axial hole and the spring. An end of the shaft is received in the accommodating hole, and the other end of the shaft passes through the end of the housing. A first stop has a bottom surface whose part extends downward to form a blocking portion, and the rest part of the bottom surface is defined as a revolving platform. A second stop engaging with the rotatable cam has a top surface protruding upward to form a pushing block rotatablely disposed on the revolving platform.

Abstract: A system and method organize a network of communicating objects in at least one partition comprising a plurality of communication cells respectively covered by a plurality of leader nodes, the network having a set of allocatable addresses split into a plurality of address pools distributively managed by the leader nodes. Upon a new node arrival, phase (a) and possibly phase (b) are executed. During phase (a), if the new node detects a leader node, it allocates address from its managed address pool and the new node assumes a member node roll in the leader node cell. If the new node does not detect any leader node in its vicinity, it goes on to the phase b). (b), wherein, if the new node detects a first cell member node, it assumes the role of leader covering a second cell, obtains an available pool of managed addresses and is allocated one of the obtained addresses.

Abstract: A hinge includes a housing. A stopper plugging up one end of the housing defines a through-hole. A sliding cam slideably received in the housing defines concave portions on a top surface thereof and an axial hole. A rotatable cam has a base portion extending downward to form pushing portions disposed in the concave portions. The base portion defines a receiving hole. A top surface of the base portion protrudes upward and defines a stepped portion. A spring is slideably received in the housing. One end of the spring is fixed on the sliding cam and the other end of the spring is fastened around the stopper. A shaft received in the housing runs through the axial hole, the spring and the through-hole. An end of the shaft is fixed with the stopper, and an opposite end of the shaft is received in the receiving hole. A damper has a top wall extending downward to form an enclosure. A top surface of the top wall protrudes upward to form a preventing block.

Abstract: A hinge apparatus includes a hinge and a damper. The damper includes a damping shell, a damping body, an outer gasket and a pushing body, damping oil is filled in the damper. The damping shell has a cylinder-shaped shell body, a cover is formed in the top of the shell body, a sleeve is formed in the shell body, and an annual groove is defined between the shell body and the sleeve. The damping body has a bottom base, an annular sidewall, and a recess defined between the bottom base and the annular sidewall. The annular sidewall is received in the annual groove. The sleeve is received in the recess. Inner grooves are opened in the inside of the annular sidewall, outer grooves are opened in the outside of the annular sidewall. The outer gasket around the annular sidewall and below the outer grooves, the outer gasket is against the inside of the shell body. The pushing body is capable of pushing the damping body to rotate under the elastic force of the hinge.