Appeal No. 96-2864
Application 08/048,503
As described by Willetts with reference to Figure 1, the system
50 includes
a conventional personal computer 52 (e.g., IBM PC or
true compatible provided with a conventional DOS disk
operating system version 2.1 or higher and at least 384
kilobytes of random access memory); a keyboard input
device 54; a mass storage device 56 (which may be one
or more floppy diskette drives and associated floppy
diskettes, Winchester-type hard disk drives and/or CD
ROM drives); a conventional CRT-type display 58; and a
speech processor 60 connected to an appropriate audio
input/output device (a conventional headset-type
speaker/microphone arrangement 62a and/or a
microphone/loudspeaker combination 62b with appropriate
external audio amplifiers as necessary).
. . . Speech processor 60 converts audio signals
applied to its audio input into ADPCM (Adaptive
Differential Pulse Code Modulation) encoded digital
data in a conventional manner for storage on mass
storage device 56 - and also converts previously
recorded ADPCM encoded digital data stored on the mass
storage device into an audio signals [sic] provided at
the speech processor audio output socket (also in a
conventional manner) [column 7, lines 29 through 61].
The Willetts system provides a “Studio Routine” (see column
20, line 41 et seq.) which allows a teacher to design and/or
customize lessons and exercises which are presented to a student
through three student functions: SoundSort, AudioWrite and
AudioLab. The SoundSort function requires a student to listen to
a jumbled series of audio phrases and arrange them in the proper
order (see column 6, lines 7 through 21; column 11, line 40
through column 12, line 32; and column 17, line 59 through column
-3-
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007