Technologies and implementations for signal enhancement are generally disclosed. In some examples, a method to enhance a signal may include receiving a determined location of a device on a surface of a touch screen, detecting a first signal and a direction of the first signal from the device with two or more wireless signal detectors, and enhancing a second signal from the device with beamforming. Enhancing the second signal may be based, at least in part, on the location of the device and the detected first signal from the device.