Abstract: A method includes establishing, by a base device, a wireless communication connection between the base device and an input device, wirelessly emitting a continuous burst of electromagnetic (EM) power to charge the input device while the input device is on or near a surface of the base device, determining that the wireless connection with the input device has been disconnected, waiting for a threshold time period after the determination, maintaining the continuous burst of EM power during the threshold time period, maintaining the continuous burst of EM power after the threshold time period when the base device receives an indication that the wireless communication connection with the input device has been reestablished during the threshold time period, and ceasing emission of the continuous burst of EM power when the base device does not receive the indication by the end of the threshold time period.

Abstract: An apparatus including a removable modular insert disposed within a housing of a host device, the housing including one or more magnets, and one or more conductive contacts disposed on the removable modular insert to magnetically couple to the one or more magnets and secure the modular insert within the housing of the host device, and electrically couple the modular insert to the host device. A conductive coil can be coupled to the modular insert to electromagnetically receive power from a base device having a surface, where the host device moves and operates along the surface of the base device. The apparatus can include a communication device and a processor to control the communication device for communication between the modular insert and the host device, and control operation of the conductive coil. The communication device further controls the electromagnetic coupling between the modular insert and the base device.

Abstract: An input device including a housing and a depressible key plate disposed thereon. The key plate includes a front user-accessible portion, a pivot support portion, and a rear portion. A shaft is disposed in the pivot support portion, where the key plate rotates with respect to the shaft. A force sensor is disposed in the housing and in contact with a bottom surface of the front portion of the key plate, and activates in response to receiving a predetermined force by the bottom surface of the front portion of the key plate. The depressible key plate depresses in response to receiving a predetermined depression force on the top surface. A biasing mechanism is disposed in the housing and in contact with the bottom surface of the rear portion of the key plate to provide an upward force tuned to be substantially equal to the predetermined depression force.

Abstract: In certain embodiments, an input device includes a chassis and a depressible actuator disposed on the chassis that, when depressed, generates and sends a control signal to a processor, where the actuator is coupleable to a removable button cover that provides user-access to activate the actuator, and a removable blank cover to prevent user access to activate the actuator. The button cover and blank cover can be separate from the chassis and may directly attach to the actuator. The input device can further include a second depressible actuator disposed on the chassis that, when depressed, generates and sends a second control signal to the processor, where the second actuator is coupleable to the button cover and the blank cover.