A signal receiving apparatus and method adapted for receiving a MIPI signal are disclosed. Constrained frequency hopping of reference signals provides a sufficiently large set of frequency hopping patterns while enhancing channel estimation. The feature control module is configured to identify a location of the user, identify at least one of the communication devices at the plurality of locations, and grant feature control for a communication session to at least one communication device based on the identification of the location of the user. , to specific sites in a patient’s body, such as tumors and infected lesions. A second bonding head unit is included in which the mount stage and a second bonding head disposed at an upper portion of the substrate corresponding to the mount stage and bonding the semiconductor chip disposed in the mount stage to the lower portion of the substrate. The assembly provides simultaneous high-current, high-pressure, low-inductance, and high-reliability service.