Patent US 4,479,124

A synthesized voice paging system for use in high call rate systems. The system includes a linear predictive coding voice synthesizer, implementable on a single integrated circuit device; a non-volatile read-only-memory capable of storing the data utilized by the synthesizer to model the human vocal tract; a radio receiver for receiving coded transmissions; and a decoding circuit/controller for decoding the transmissions received and for controlling the synthesizer. A transmitter can be provided to allow the operator to acknowledge receipt of the synthesized message.