This class covers all sound-emitting devices, in general, whether or not they may be considered as being musical.
In this class, the following expression is used with the meaning indicated:
"musical instrument" does not exclude devices emitting a single sound signal.
The following Class Index is given in place of subclass indexes, to show the grouping of the elaborations belonging to different subclasses, under the following three fundamental types:
wind instruments;
string instruments;
percussion instruments,
which relate clearly to the majority of instruments.
This subclass covers musical instruments in which individual notes are constituted as electric oscillations under the control of a performer and the oscillations are converted to sound-vibrations by a loud-speaker or equivalent instrument.
Instruments in which the tones are generated by electromechanical means
G10H 3/02
·
using mechanical interrupters
G10H 3/03
·
using pick-up means for reading recorded waves, e.g. on rotating discs [3]
G10H 3/06
· ·
using photoelectric pick-up means
G10H 3/08
· ·
using inductive pick-up means
G10H 3/09
· · ·
using tapes or wires [3]
G10H 3/10
· ·
using capacitive pick-up means
G10H 3/12
·
using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument [3]
tones generated by frequency multiplication or division of a basic tone
G10H 5/07
· · ·
resulting in complex waveforms [3]
G10H 5/08
· ·
tones generated by heterodyning
G10H 5/10
·
using generation of non-sinusoidal basic tones, e.g. sawtooth
G10H 5/12
· ·
using semiconductor devices as active elements
G10H 5/14
·
using electromechanical resonator, e.g. quartz crystal, as frequency-determining element [3]
G10H 5/16
·
using cathode ray tube [3]
G10H 7/00
Instruments in which the tones are synthesised from a data store, e.g. computer organs (speech analysis or synthesis, per seFulltext... Hierarchy... Expanded...G10L) [3]