Facsimile radio communication system

A communication system operable in conjunction with a two-way voice radio transceiver, operable from an audio signal and a transmit control signal, and providing an audio output signal, and a facsimile transceiver including a telephone line interface for developing analog transmit signals and recognizing analog receive signals over a conventional voice telephone line, and having predetermined signal timing requirements, said system comprising:

• storage means for storing digital data signals;
• first conversion means for converting the analog transmit signals from the facsimile transceiver to digital data signals for storage in said storage means for transmission, and for converting digital data signals in said storage means to the analog receive signals for application to the facsimile transceiver for reception;
• second conversion means for developing from said stored digital data signals an audio signal for application to the radio transceiver for transmission, and for developing from the audio output signals of the radio transceiver a digital data signal for application to the digital storage means for reception;
• said audio signal developed by said second conversion means for application to the radio transceiver being in packet format, each packet including at least one data check digit, and said second conversion means further including encoding means for encoding said data check digit in said developed audio signal, and for decoding said data check digit in the audio output signal received from the radio transceiver for verifying the integrity of received packets;
• said second conversion means comprising means for generating a confirmation packet signal for application to the audio input of the radio transceiver upon receipt of a data packet form the radio transceiver including a valid check digit;
• and
• control circuit means responsive to the operating state of the facsimile transceiver, and to the presence of stored digital data signals in said storage means, for controlling said first and second conversion means and the operation of the voice radio receiver whereby the communication system meets to the timing requirements of the facsimile transceiver when said digital data storage means contain a deficit or surplus of digital data signals.