Patent ID: 6163683
Filing Date: 2000-12-19
Classification: H04H

Abstract:
Mobile data radio receiver apparatus for receiving concurrently broadcast transmissions of radio signals arranged in digital and analog forms, said signals sent by a single virtual radio station having plural antennas situated in plural separate areas within a larger geographic space, each of said antennas having sufficient signal strength to span a single respective area in said larger space; said signals being carried as modulation on different frequency parameters in adjacent said areas; said signals being used to present a single radio program across said larger space; at least part of said single radio program having the same content in all of said areas; said apparatus comprising:digital and analog reception modules respectively adapted to separately receive and process said concurrently broadcast radio program signal transmissions in said digital and analog forms; andcircuits connecting said modules for varying program playing operations in said analog module in response to broadcast digital transmissions received in said digital module, said varied operations including operations serving to automatically maintain the respective receiver continuously tuned to said single virtual station as said receiver is transported across a virtual boundary between neighboring said areas spanned by different ones of said antennas.