Patent ID: 7312709

Claim:
A personal alarm system comprising: a personal alarm signalling device adapted to be worn on a user's body comprising a user activatable transceiver for transmission of an alarm signal, the personal alarm signalling device including an activation button, and the personal alarm signalling device being activated only when the activation button is pressed to ensure that the personal alarm signalling device only begins to draw power once the personal alarm signalling device has been activated by the activation button; and a user activatable responder device adapted to contact outside help via a telephone network in response to the alarm signal, the responder device being provided locally in the vicinity of the user to thereby reduce power required for the alarm signalling device to contact the responder device, the responder device being adapted to receive the alarm signal and to transmit a response signal to the transceiver after receipt of the alarm signal to inform the user of the receipt of the alarm signal, the alarm signalling device comprising a user display for displaying the response signal to the user and an interface for receiving user data, the interface including a sound receiving member and a sound producing member to provide true two way instantaneous conversation via the alarm signalling device, the transceiver being adapted to transmit the user data to the responder device after receipt of the response signal and to receive responder data from the responder device, the interface being adapted to provide the responder data to the user.