Patent ID: 7102965

Claim:
A playback radio assembly which is disposed within a conventional radio, said playback radio assembly comprising: a first converter assembly which is coupled to said conventional radio, and which receives a certain signal from said conventional radio and converts said received signal; a memory assembly which is coupled to said first converter portion and which records a first amount of said converted signal, erases at least a first portion of said recorded signal from at least one first section of said memory portion, and records at least one second portion of said converted signal in said at least one first section; and a second converter assembly which is coupled to said memory assembly, and which receives said first amount and said at least one second amount of recorded signal from said memory assembly, wherein said first converter assembly comprises an analog to digital converter, wherein said memory assembly comprises a ring buffer memory having a first section, a second section, a third section, a fourth section, a fifth section, and at least a sixth section, wherein each of said sections are capable of recording a certain respective and predetermined amount of audio signal, wherein said certain respective and predetermined amount of audio signal comprises ten seconds of audio signal, wherein said second converter assembly comprises a digital to analog converter, further comprising a digital signal processor which is communicatively coupled to said analog to digital converter, said memory, and said digital to analog converter, said digital signal processor being adapted to compress said recorded first amount and said recorded at least one second amount of said converted signal by a certain percentage, wherein said certain percentage comprises ten percent, wherein said first certain signal comprises a non-compressed real time audio signal, said playback radio assembly further including a selectively depressible actuation switch which is coupled to said conventional radio and to said playback radio assembly, wherein a first depression of said actuation switch activates said playback radio assembly and communicates said recorded audio signal from said first section of said memory to said digital signal processor, effective to replay said recorded audio signal from said first section in a compressed format while said memory continues to record said real time audio signal and said digital signal processor concomitantly compresses said real time audio signal and said conventional radio plays said real time audio signal in a compressed format until such time that said compressed real time audio signal becomes in sync with said non-compressed real time audio signal.