H | Sektion H — Elektrotechnik | ELECTRICITY | |
H04 | Elektrische Nachrichtentechnik | ELECTRIC COMMUNICATION TECHNIQUE | |
H04S | Stereophone Systeme [3] | STEREOPHONIC SYSTEMS [3] | |
H04S 3/00 | Systeme mit mehr als zwei Kanälen, z.B. quadrophone (H04S 5/00 , H04S 7/00 haben Vorrang) [3, 2006.01] | Systems employing more than two channels, e.g. quadraphonic (H04S 5/00, H04S 7/00 take precedence) [3, 2006.01] |