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SOUND-PRODUCING DEVICES (sound-producing toys A63H 5/00 ; musical instruments or parts thereof, see the relevant subclass, e.g. G10D); ACOUSTICS NOT OTHERWISE PROVIDED FOR (systems using the reflection or reradiation of acoustic waves G01S 15/00 ; generating seismic energy G01V 1/02 ; signalling or calling arrangements, alarm arrangements G08B ; piezo-electric electrostrictive or magnetostrictive elements in general H01L 41/00 ; transmission systems using infrasonic, sonic, or ultrasonic waves H04B 11/00 ; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H04R)
Definition statement
This subclass/group covers:

Devices that produce a sound by striking a resonating body, such as bells, chimes, gong.

Whistles, siren devices that produce a sound driven by rotating member, motor, or fluids, e.g., compressed gas.

Devices that produce a sound by vibrating a diaphragm or analogous element, such as foghorns, vehicle hooter, buzzer.

Methods or devices that transmit, conduct, or direct a sound wave.

Methods or devices for protection against, or damping of, acoustic waves.

Cones, diaphragms, or the like, for emitting or receiving sound.

Acoustics not otherwise provided for.

Arrangements for generating mechanical vibrations in fluids.

The production of sounds which may not be audible to human beings but which are audible to animals.

Relationship between large subject matter areas

When classifying in subgroups G10K 9/122-G10K 9/22, the subgroups do not cover the construction of, or circuits for, broadband-transducers, such as loudspeakers or microphones, which are covered by subclass H04R.

When classifying in subgroups G10K 11/162-G10K 11/168, the subgroups do not cover protecting against, or damping of, acoustic waves adapted for particular applications, which are covered by the subclasses for these applications, provided that there is a specific provision for this aspect.

References relevant to classification in this subclass
This subclass/group does not cover:

Scaring devices, e.g. bird-scaring devices

Hunting appliances

Diagnosis using ultrasonic, sonic or infrasonic waves

Vibration massage

Devices for producing sleep by acoustical means

Sound producing toys

Employing sonic or ultrasonic vibrations in chemical or physical processes

Disintegrating devices using ultrasonic waves

Spraying or atomising liquids using ultrasonic waves

Acoustic devices used in vehicle signaling

Acoustic signal devices used on bicycles

Fluid oscillators or pulse generators for fluid pressure systems

Systems using the reflection or reradiation of acoustic waves

Signaling or calling arrangements, alarm arrangements

Percussive musical instruments

Piezo-electric, electrostrictive, or magnetostrictive elements, in general

Transmission systems using infrasonic, sonic, or ultrasonic waves

Loudspeakers, microphones, gramophone pick-ups, or the like, acoustic electromechanical transducers

Diaphragms for electromechanical transducers

Informative references
Attention is drawn to the following places, which may be of interest for search:

Medical stethoscopes

Generation or transmission of mechanical waves, in general

Apparatus specifically adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

Gas-flow silencers or exhaust apparatus for machines or engines, in general, for internal combustion engines

Intake silencers for internal-combustion engines

Means or arrangements for avoiding or reducing out-of-balance forces due to motion

Suppression of undesired vibrations

Preventing noise in valves

Noise absorbers in pipes

Arrangements for suppressing noise in direct-contact trickle coolers

Silencers for weapons

Investigating materials by the use of ultrasonic, sonic or infrasonic waves

Generating seismic energy

Non-electronic musical instruments

Details of electrophonic musical instruments

Synthesis of speech

Information storage based on relative movement between record carrier and transducer

Generation of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner; generation of noise by such circuits

Electro-acoustic amplifiers

Impedance networks comprising electro-acoustic elements

Special rules of classification within this subclass

When classifying in subgroups G10K 11/16-G10K 11/172, classification is also made in subclass B32B, in so far as any layered product is concerned.

For details which are not covered by specific subgroups of G10K, the Indexing Codes G10K 2200/00 and G10K 2200/00 should be applied.

Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:

Acoustics; Sound

The terms acoustics and sound cover the technical fields dealing with mechanical vibrations at all infrasonic, sonic, and ultrasonic frequencies. However, generation or transmission of mechanical waves, in general, is covered by subclass B06B, subject to the exception specified in special rules of classification within this subclass mentioned above.

Musical instrument

Musical instrument can include a device that emits a single sound signal or, in other words, does not exclude a device that emits a single sound signal.

Devices in which sound is produced by striking a resonating body, e.g. bell, chimes, gong (combinations with clocks or watches G04B , G04C ; carillons G10F 1/10 ; { for percussion instruments G10D 13/00 })
References relevant to classification in this group
This subclass/group does not cover:

Percussive musical instruments

Carillons

Informative references
Attention is drawn to the following places, which may be of interest for search:

Sound devices, e.g., bells, chimes, gong combined with clocks or watches

Rattles or like noise-producing devices,{e.g. door-knockers}
Definition statement
This subclass/group covers:

Door-knockers

Whistles
Definition statement
This subclass/group covers:

Infrasonic, sonic, and ultrasonic whistles

References relevant to classification in this group
This subclass/group does not cover:

Whistling kettles

Sirens
Definition statement
This subclass/group covers:

Sirens where the sound is created by chopping a flow of air

References relevant to classification in this group
This subclass/group does not cover:

Sirens in which the sound is created by a vibrating membrane

Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horn, vehicle hooter, buzzer (loudspeakers or like acoustic electromechanical transducers H04R){ arrangement or adaptation for ships B63B 45/08 ; mechanically driven vibrators B06B 1/10}
References relevant to classification in this group
This subclass/group does not cover:

Mechanically driven vibrators

Arrangement or adaptation for ships

The construction of, or circuits for, broadband-transducers, such as loudspeakers, microphones or like acoustic electromechanical transducers

Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general ({ protective devices for the ears A61F 11/06 } ; sound insulation for vehicles B60R 13/08 ; sound insulation for aircraft B64C 1/40 ; sound insulating materials, see the relevant places, e.g. C04B 26/00 to C04B 38/00 ; reduction of noise on permanent way E01B 19/00 ; absorption of air-transmitted noise from road or railway traffic E01F 8/00 ; noise insulation, absorption or reflection in buildings E04B 1/74 ; room acoustics E04B 1/99 ; sound insulation in floors E04F 15/20 ; gas-flow silencers or exhaust apparatus for machines or engines in general, for internal-combustion engines F01N ; intake silencers for internal-combustion engines F02M 35/00 ; suppression of undesired vibrations F16F 7/00 to G10K 15/00 ; preventing noise in valves F16K 47/02 ; noise absorbers in pipes F16L 55/02 ; arrangements for suppressing noise in direct-contact trickle coolers F28C 1/10 ; silencers for weapons F41)
Definition statement
This subclass/group covers:

Methods or devices that transmit, conduct, or direct a sound wave.

Methods or devices for protection against, or damping of, acoustic waves.

Methods or devices for damping acoustic waves by electroacoustically regenerating the original acoustic waves in antiphase, and superimposing the two acoustic waves

Diffusers (G10K 11/20)

Damping or steering of surface acoustic waves

Relationship between large subject matter areas

The subgroups G10K 11/162-G10K 11/168 cover the selection of materials for the devices for protecting against, or damping of, acoustic waves. Subject-matter, which normally would be covered by these groups, which is adapted for particular applications, which are covered by the classes for these applications, is to be classified with those applications provided that there is a specific provision for the aspect of protecting against, or damping of, acoustic waves.

References relevant to classification in this group
This subclass/group does not cover:

Sound insulating materials

Room acoustics

Suppression of undesired vibrations

Examples of places where the subject matter of this subclass is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Protective devices for the ears

Sound insulation for vehicles

Sound insulation for aircraft

Reduction of noise on the permanent way

Absorption of air-transmitted noise from road or railway traffic

Noise insulation, absorption or reflection in buildings

Sound insulation in floors

Intake silencers for internal-combustion engines

Preventing noise in valves

Noise absorbers in pipes

Arrangements for suppressing noise in direct-contact trickle coolers

Silencers for weapons

F41

Informative references
Attention is drawn to the following places, which may be of interest for search:

Providing a coupling medium when performing lithotripsy

Using a coupling medium when making a diagnosis using infrasonic, sonic, or ultrasonic waves

Gas-flow silencers or exhaust apparatus for machines or engines in general, for internal-combustion engines

Using an acoustic coupling when investigating materials

Constructional features of sonar devices

Special rules of classification within this group

When classifying in subgroups G10K 11/16-G10K 11/172, classification is also to be made in subclass B32B, in so far as any layered product is concerned.

{Devices for damping, suppressing, obstructing or conducting sound in acoustic devices (G10K 1/06 to G10K 1/10 take precedence; for electro-mechanical transducers for communication H04R 3/002)}
Definition statement
This subclass/group covers:

Devices for damping, suppressing, obstructing or conducting sound in acoustic devices, e.g. for preventing cavitation in acoustic devices

References relevant to classification in this group
This subclass/group does not cover:

Resonating devices having the shape of a bell, plate, rod, or tube

Electro-mechanical transducers for communication

Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound (G10K 11/36 takes precedence)
References relevant to classification in this group
This subclass/group does not cover:

Sound insulation in boats or ships

Sound insulation in aircraft

Silencing jet engines

Sound insulation materials (see relevant places)

Reduction of noise in permanent way

Absorption of air-transmitted noise from road or railway traffic

Noise insulation, absorption, or reflection in buildings

Room acoustics

Sound insulation in floors

Gas-flow silencers or exhaust apparatus for machines or engines, in general, for internal combustion engines

Acoustic insulation for internal combustion engines

Air-intakes for gas-turbine or jet-propulsion plants having provision for noise suppression

Sound absorbing structures for jet-propulsion plants

Intake silencers for internal-combustion engines

Sound attenuation for pumps

Means or arrangements for avoiding or reducing out-of-balance forces due to motion

Suppression of undesired vibrations

Preventing noise in valves

Noise absorbers in pipes

Suppressing noise in air-conditioning systems

Arrangements for suppressing noise in direct-contact trickle coolers

Silencers for weapons

Devices for manipulating acoustic surface waves

Surface acoustic wave resonators

Examples of places where the subject matter of this subclass is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Sound insulation for vehicles

Particles in a matrix
Definition statement
This subclass/group covers:

Sound absorbers where the matrix is a gas and where the particles are in a fixed position

by electro-acoustically regenerating the original acoustic waves in anti-phase
Special rules of classification within this group

For further details, including details which may already be covered by specific subgroups of G10K 11/178, the Indexing Codes G10K 2210/00 and subcodes should be applied.

G10K 2210/00 covers "Details of active noise control [ANC], e.g.:

Applications, e.g. in aircos, jet engines, typewriters, dental equipment, synhrophasors or the like

Means (computational), e.g. algorithms, transfer functions, fuzzy logic, control strategies or the like;

Means (physical), e.g. actuator details, geometries, filters resonators or the like;

Miscellaneous, e.g. ageing, stability, howling, literature documents, mimicking sports cars or the like

Reflecting arrangements (G10K 11/28 takes precedence)
Definition statement
This subclass/group covers:

Diffusers

References relevant to classification in this group
This subclass/group does not cover:

Sound focusing or directing using reflection

for conducting sound through solid bodies, e.g. wire
Informative references
Attention is drawn to the following places, which may be of interest for search:

Apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

Sound-focusing or directing, e.g. scanning{ horns for impedance matching G10K 11/02 ; megaphones G10K 11/08}
Definition statement
This subclass/group covers:

Diffraction

References relevant to classification in this group
This subclass/group does not cover:

Horns for impedance matching

Megaphones

Devices for manipulating acoustic surface waves (electro-acoustic amplifiers H03F 13/00 ; networks comprising electro-acoustic elements H03H 9/00)
Definition statement
This subclass/group covers:

Damping, steering of Surface Acoustic Waves

References relevant to classification in this group
This subclass/group does not cover:

Electro-acoustic amplifiers

Networks comprising electro-acoustic elements

Cones, diaphragms, or the like, for emitting or receiving sound in general (for electromechanical transducers H04R 7/00)
References relevant to classification in this group
This subclass/group does not cover:

Diaphragms for loudspeakers

Acoustics not otherwise provided for
Definition statement
This subclass/group covers:

Synthesis of acoustic waves

Sound-producing devices not otherwise provided for

Arrangements for producing a reverberation sound

Acoustic levitation

Matter transportation using acoustic waves

Synthesis of acoustic waves (synthesis of speech G10L)
Definition statement
This subclass/group covers:

Modulation, parametric techniques

References relevant to classification in this group
This subclass/group does not cover:

Generation of tones in electrophonic musical instruments

Synthesis of speech

Sound-producing devices (G10K 15/02 takes precedence)
Definition statement
This subclass/group covers:

SASERS

References relevant to classification in this group
This subclass/group does not cover:

Synthesis of acoustic waves

{producing shock waves (G10K 15/046 , G10K 15/06 take precedence; generating seismic energy G01V 1/02)}
Definition statement
This subclass/group covers:

Unipolar generators

References relevant to classification in this group
This subclass/group does not cover:

Calculus smashing apparatus

Application of shock-waves for chemical reactions

Shaping using shock waves

Sound producing devices

Sound producing devices using electric discharge

Informative references
Attention is drawn to the following places, which may be of interest for search:

Generating seismic energy

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Last Modified: 10/11/2013