US Patent 10559708 Proximity sensing module with dual transmitters

A proximity sensing module with dual transmitters includes a circuit board, a package housing, a transmitter unit and a sensing assembly. The transmitter unit includes a first transmitter and a second transmitter. The first transmitter and the second transmitter are disposed on the circuit board. The sensing assembly includes a sensor disposed on the circuit board. The transmitter unit is shielded from the sensing assembly through the package housing. One of the first transmitter and the second transmitter is nearer to the sensing assembly than the other one is.