US Patent 9355418 Alerting servers using vibrational signals

Customer-used objects, such as tabletops, dinnerware, and retail racks, are impregnated with an accelerometer, a processor, and a Bluetooth chip. Taping or knocking such an entity by alerts a worker of a requested service. The accelerometer captures vibration data associated with the tapping or knocking and sends that data to the processor. The processor recognizes the gesture's vibrations. Finally, a recognized gesture will command the Bluetooth chip to send an alert to the server. The invention prevents a customer from second-guessing possible orders or purchases and allows an employee to become more efficient, thus saving time money.