Bracelet e.g. for signaling of incoming call of a mobile phone, has vibration setting and receiver setting for receiving optical and or electrical signals

摘要

The bracelet has a vibration threshold setting (5) and a receiver threshold setting for receiving optical and or electrical signals, whereby responding to the detection of the receipt of a signal, the vibration setting is initialized. The receiver has a photodiode, and an antenna. The signal has an identification code, where on detection of the signal the device compares the identification code of the received signal with a given code.