Digital electronic recorder/player

Claim 1

A digital recorder comprising: an input digital filter means for receiving an input analog signal and for high frequency limiting said input analog signal; an analog to digital converter coupled to said input digital filter means for converting said high frequency limited analog input signal to a digital signal; a memory means coupled to said analog to digital converter for storing said digital signal; a digital to analog converter coupled to said memory means for converting said digital signal to an output analog signal; an output digital filter means coupled to said digital to analog converter for filtering said output analog signal; a clock source providing a first clocking frequency signal; and a frequency divider means including: an even fequency divider having an input for receiving said first clocking frequency signal and having a plurality of outputs, each output providing a clocking frequency signal having a frequency substantially equal to the frequency of the first clocking frequency signal divided by an even integer; a pair of diodes having respective cathodes connected to respective ones of said plurality of said plurality of outputs, and having commonly connected anodes connected to a differenct one of said plurality of outputs; and a resistor connectable between a source of voltage and said commonly connected anodes; wherein said diodes and said resistor cause said even frequency divider to skip all individual 1's appearing on said output connected to said anodes to accomplish odd frequency division and to provide a second clocking frequency signal synchronized with said first clocking frequency signal and having a frequency substantially equal to said first clocking frequency divided by an odd integer; said first clocking frequency signal driving said input digital filter means and said output digital filter means, and said second clocking frequency signal driving said analog to digital convertor, said memory means and said digital to analog converter.