Hardware-software complex for sensitive voice BASED vocoder Vector Excited

摘要

Software and hardware for the confidential transmission of speech, comprising a lower and an upper keyboard, a block for interfacing with a telephone line, characterized in that it comprises a digital data processing unit, a programmable analog-to-digital and digital to analog converters, the block of analog signal amplifiers, a control unit and program memory containing vocoder excitation vector, wherein the digital data processing unit is a single chip microprocessor (integer or floating point), blo the control is a single chip microcontroller and programmable non-volatile data memory, program memory unit is a read-only memory chip containing the program operation unit digital data processing unit and programmable analog-to-digital and digital to analog converters comprises a codec and a crystal frequency reference.