Abstract: A system and method includes one or more processors coupled to a memory, the one or more processors operable to read instructions from the memory to perform one or more steps or operations. The operations may include receiving a signal from a first device, sending a first code and an instruction to broadcast the code to a broadcasting device based on the signal, receiving an access request and a second code broadcasted from the broadcasting device from a second user device, and granting the second user device access to a feature of an application when the second code broadcasted from the broadcasting device matches the first code.

Abstract: A system and method includes one or more processors coupled to a memory, the one or more processors operable to read instructions from the memory to perform one or more steps or operations. The operations may include receiving a signal from a first device, sending a first code and an instruction to broadcast the code to a broadcasting device based on the signal, receiving an access request and a second code broadcasted from the broadcasting device from a second user device, and granting the second user device access to a feature of an application when the second code broadcasted from the broadcasting device matches the first code.

Abstract: A system and method includes one or more processors coupled to a memory, the one or more processors operable to read instructions from the memory to perform one or more steps or operations. The operations may include receiving a signal from a first device, sending a first code and an instruction to broadcast the code to a broadcasting device based on the signal, receiving an access request and a second code broadcasted from the broadcasting device from a second user device, and granting the second user device access to a feature of an application when the second code broadcasted from the broadcasting device matches the first code.

Abstract: A system and method includes one or more processors coupled to a memory, the one or more processors operable to read instructions from the memory to perform one or more steps or operations. The operations may include receiving a signal from a first device, sending a first code and an instruction to broadcast the code to a broadcasting device based on the signal, receiving an access request and a second code broadcasted from the broadcasting device from a second user device, and granting the second user device access to a feature of an application when the second code broadcasted from the broadcasting device matches the first code.

Abstract: An ion implanter and method for adjusting the shape of an ion beam are disclosed. After an ion beam is outputted from an analyzer magnet unit, at least one set of bar magnets is used to adjust the shape of the ion beam when the ion beam passes through a space enclosed by the bar magnets. The set of bar magnets can apply a multi-stage magnetic field on the ion beam. Hence, different portions of the ion beam will have different deformations or alterations, because the multi-stage magnetic field will apply a non-uniform force to change the trajectory of ions. Moreover, each bar magnet of the set is powered by one and only one power source, such that the set of bar magnets essentially only can adjust the magnitude of the multi-stage magnetic field. Particular structures and techniques for achieving the multi-stage magnetic field are not limited.