Music laboratory
US4010557A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1971 |
| Grant date | Mar 8, 1977 |
| Priority date | — |
| Expiry date | Apr 27, 1991 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B15/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system of class intercommunication which provides: PA1 1. individual channels between a teacher and PA2 A. any student of the class, or PA2 B. any of several preselected groups of students of the class, or PA2 C. the entire class. PA1 2. provision for ensemble playing within one or more of the groups. PA1 3. provision for group instruction from audio aids, all under control of the teacher only. Programming is achieved by rotary group programming switches, which determine the character of the facilities, e.g., individual, audio aids, and ensemble, by interlocked group selection switches which enable selection of one group to the exclusion of the others, by further interlocked selection switches which enable selection of an individual student to be monitored or privately instructed, and by a switch which enables the teacher to provide any or all groups with instruction simultaneously. A minimum number of switch actuators is provided, physically grouped for easy access and control within the span of one hand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.