Telephone tactile alert system
First Claim
1. A system for non-audibly alerting a telephone user when the telephone is being energized by ringing volage, the system comprising (i) a telephone unit for coupling to the telephone line, the telephone unit including a sensing means for sensing successive ringing voltage bursts and a transmitter adapted to emit a signal burst in response to each successive ringing voltage burst, and (ii) a user unit including a receiver for receiving the signal bursts from the transmitter and a transducer under the control of the receiver for converting the received signal into a non-audibly sensible signal.
5 Assignments
0 Petitions
Accused Products
Abstract
A telephone user who cannot hear the telephone ringing is alerted, other than audibly, to the fact that the telephone must be answered. A radio transmitter at the telephone is driven by ringing voltage supplied to the instrument. The transmitter emits a radio signal which is picked up by a receiver carried by the telephone user. Upon detection of the received signal, a tactile transducer is actuated and alerts the telephone user to the fact that the telephone must be answered.
47 Citations
11 Claims
- 1. A system for non-audibly alerting a telephone user when the telephone is being energized by ringing volage, the system comprising (i) a telephone unit for coupling to the telephone line, the telephone unit including a sensing means for sensing successive ringing voltage bursts and a transmitter adapted to emit a signal burst in response to each successive ringing voltage burst, and (ii) a user unit including a receiver for receiving the signal bursts from the transmitter and a transducer under the control of the receiver for converting the received signal into a non-audibly sensible signal.
Specification