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A packet encoder includes various sources of data, a state machine and additional circuitry. The state machine provides an S-bit output signal. N of the output bits of the state machine, (N

A packet encoder includes various sources of data, a state machine and additional circuitry. The state machine provides an S-bit output signal. N of the output bits of the state machine, (N

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[ I claim:] [1.] Apparatus for formatting compressed audio data into packets of data according to a predetermined protocol, said audio data occurring in audio frames each with a frame start code, said apparatus comprising:a source of said compressed audio data (2) and associated timing signals:sourc

[ I claim:] [1.] Apparatus for formatting compressed audio data into packets of data according to a predetermined protocol, said audio data occurring in audio frames each with a frame start code, said apparatus comprising:a source of said compressed audio data (2) and associated timing signals:sources of respective packet header data including service type data and timing data (4 and 6);a multiplexer (5) having respective signal input ports coupled to respective said sources of header data (4 and 6) and said source of compressed audio data (2), an N-bit control input port for applying multiplexer control signals, and an output port;a state machine (22) having an input port, and having an output port providing an S-bit output signal defining possible system output states where S is greater than N and S and N are positive integers, and wherein said S-bits from said state machine output port are combined with said associated timing signals and coupled to said state machine input port, and N bits of said S-bit output signal are coupled to said control signal input port of said multiplexer for controlling said multiplexer (5) to pass header data and audio data according to said protocol;means (52) responsive to ones of S-N remaining bits of said S-bit output signal for producing an enable/disable signal; andutilization means (8) coupled to said output port of said multiplexer (5), and controlled by said enable/disable signal.