Stereophonic arrangements

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC COMMUNICATION TECHNIQUE
Subclass:: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS

Scope Notes

Limiting references: Stereophonic pick-ups, i.e. wherein signals are recorded or played back by vibration of a stylus in two orthogonal directions simultaneously , , ,

Related Keywords

stereophonic arrangements of TRANSDUCERS

4 direct subcodes

Child Classifications

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H04R 5/02 Spatial or constructional arrangements of loudspeakers
H04R 5/027 Spatial or constructional arrangements of microphones, e.g. in dummy heads
H04R 5/033 Headphones for stereophonic communication
H04R 5/04 Circuit arrangements