Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Interactive device for teaching musical tones or melodies

Interactive device for teaching musical tones or melodies

US Patent 4441399 · Granted Apr 10, 1984

Estimated economic value: $8,445,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Distributed processing memory chip with embedded logic having both data memory a1998
Fixed text speaker verification method and apparatus1996
Apparatus, systems and methods for distributed signal processing1996
Apparatus, systems and methods for implementing memory embedded search arithmeti1996
Devices, systems and methods for implementing a Kanerva memory1995
Speech analysis method and apparatus1994
System and method for time aligning speech1994
Grammar-based checksum constraints for high performance speech recognition circu1993
Apparatus and method for identifying a speech pattern1993
Voice verification circuit for validating the identity of telephone calling card1993
Temporal decorrelation method for robust speaker verification1992
Method for utilizing formant frequencies in speech recognition1992