Patent ID: 6021325
Filing Date: 2000-02-01
Classification: H04M

Abstract:
Apparatus comprising:a circuit for carrying a first and a second audio signal;a microprocessor coupled to said circuit and receiving said first and second audio signal from said circuit;a first memory coupled to said microprocessor for storing a predetermined length of said audio signal on a first-in-first-out basis, said first memory including a plurality of blocks of memory wherein said microprocessor combines said first audio signal and said second audio signal prior to storing said signals in said first memory;a second memory coupled to said microprocessor;means for transferring a first block of said plurality of blocks to said second memory in response to a first user command;means for freezing the contents of said first memory in response to said first user command; andmeans for transferring a second block of said plurality of blocks to said second memory in response to the receipt of a second user command within a predetermined period of time.