Abstract: A method and system of automatically estimating a ball carrier in team sports.

Abstract: Embodiments are generally directed to methods and apparatuses for determining a frontal body orientation. An embodiment of a method for determining a three-dimensional (3D) orientation of frontal body of a player comprises: detecting each of a plurality of players in each of a plurality of frames captured by a plurality of cameras; for each of the plurality of cameras, tracking each of the plurality of players between continuous frames captured by the camera; and associating the plurality of frames captured by the plurality of cameras to generate the 3D orientation of each of the plurality of players.

Abstract: A rotary compressor (100) includes a casing (1), an electric motor (2) and a compression mechanism (3), in which the electric motor (2) includes a stator core (21) and a rotor core (22), the compression mechanism (3) includes an air cylinder assembly (31) and a main bearing (32) connected to a side end face of the cylinder assembly (31) adjacent to the electric motor (2), the largest distance between a side end face of the stator core (21) adjacent to the first end wall (111) and the first end wall (111) is denoted by Dst, the smallest distance between a side end face of the rotor core (22) adjacent to the first end wall (111) and a side end face of a flange portion (321) of the main bearing (32) at one side adjacent to the first end wall (111) is denoted by Drt, in which Dst and Drt satisfy a relationship: 0.335?Dst/Drt?0.838.

Abstract: Disclosed is a phase discriminator, including: a first XOR gate connected to a trigger and a delay unit, a second XOR gate connected to the trigger and a latch, wherein the first XOR gate is a current mode logic XOR gate, the first XOR gate comprises a first offset current source circuit outputting a first adjustable offset circuit for controlling amplitude of the error signal output by the first XOR gate; and/or, the second XOR gate is a current mode logic XOR gate, the second XOR gate comprises a second offset current source circuit outputting a second adjustable offset circuit for controlling amplitude of reference signal output by the second XOR gate. Also disclosed are a clock and data recovery system and a phase adjustment method. The present invention can prevent introducing noise coupling to the voltage control oscillator (VCO) module.

Abstract: Disclosed is a phase discriminator, including: a first XOR gate connected to a trigger and a delay unit, a second XOR gate connected to the trigger and a latch, wherein the first XOR gate is a current mode logic XOR gate, the first XOR gate comprises a first offset current source circuit outputting a first adjustable offset circuit for controlling amplitude of the error signal output by the first XOR gate; and/or, the second XOR gate is a current mode logic XOR gate, the second XOR gate comprises a second offset current source circuit outputting a second adjustable offset circuit for controlling amplitude of reference signal output by the second XOR gate. Also disclosed are a clock and data recovery system and a phase adjustment method. The present invention can prevent introducing noise coupling to the voltage control oscillator (VCO) module.