Analog/digital data storage system

A digital voice storage communication system including:

• at least one transmitting station selectively addressing and transmitting a communication packet including an address code followed by a voice message;
• at least two receiving stations each having a corresponding predetermined stored address, each comprising:
• a receiving circuit responsive to said communication packet;
• a decoder connected to said receiving circuit and generating a record enable signal in response to said communication packet;
• a digital memory for storing said voice message of said communication packet in response to said record enable signal at a first data rate;
• a signal conversion circuit for converting digital data into analog data, and
• a timing circuit for clocking data representing said stored voice message from said digital memory at a second data rate which is different from said first data rate.

A receiving station for receiving a communication packet including an address code followed by a compressed voice message, comprising:

• a register storing a predetermined address for said receiving station;
• a receiving circuit responsive to said communication packet;
• a decoder connected to said receiving circuit for comparing said predetermined stored address with said communication packet address code and generating a record enable signal in response to said comparison;
• a digital memory for storing said compressed voice message of said communication packet in response to said record enable signal at a first data rate;
• a signal conversion circuit for converting digital data into analog data, and
• a timing circuit for clocking data representing said stored compressed voice message from said digital memory at a second data rate which is slower than said first data rate to restore said voice message to its original frequency.

A receiver for receiving voice messages from a transmitter, the voice messages having been compressed at said transmitter thereby shifting their frequency upward, comprising:

• a receiving circuit for receiving said compressed voice messages;
• a digital memory connected to said receiving circuit, said digital memory storing digital data representing said compressed voice messages;
• and
• a frequency shifting circuit connected to said memory for reproducing said stored voice messages in analog format at a rate which shifts the frequency of said stored voice messages to normal speech frequency.