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Device for receiving radio call messages

  • US 4,276,653 A
  • Filed: 04/12/1979
  • Issued: 06/30/1981
  • Est. Priority Date: 04/14/1978
  • Status: Expired due to Term
First Claim
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1. Device for receiving radio call messages on a ship from different transmitters at different stations, which device comprises a number of receivers (1) for different frequencies from said different transmitters and means for storing and processing the messages received, said device comprising:

  • (A) a shift register means (4) connected to the output of each receiver,(B) an identifier (11) means connected to the output signal, having the value 1 or 0, from said shift register to provide an output control signal with respect to the pertinence of the messages to said ship,(C) a plurality of storing means (13),(D) a switching unit (14) connected to the outputs of said identifier means,(E) said switching unit (14) in response to said output control signal connects the appropriate shift register means to an available storing means (13),(F) a commonly controlled clock generator means for controlling said shift register means, said identifier means, and said storing means, which said clock generator means integrates asynchronously received signals into synchronous signals, and(G) a cyclic scanner (18) for reading out said storing means to one or more terminal stations for further storing and processing the pertinent stored message.

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