to my knowledge, the patents involve
the following:
#5,491,774
February 13, 1996
"Handheld record and playback device with flash memory"
#5,742,737
April 21, 1998
"Method for recording voice messages on flash memory in a hand held recorder"
#5,787,445
July 28, 1998
"Operating System including improved file management for use in devices utilizing flash memory as main memory"
#5,839,108
November 17, 1998
"Flash memory file system in a hand held record and playback device"
#5,842,170
November 24, 1998
"Method of editing in hand held recorder"
*****
Patent #5,787,445 (operating system)is the life blood.
Data available at: uspto.gov
Long on EDIG! |
