System for simultaneous multiple keyboard teaching using closed-circuit television

Abstract: Including: Teacher console with keyboard, video monitors, audio and camera controls, cassette recorder and connector for microphone-headset. Pupil consoles with keyboard, tea­ cher call button, system for illuminating each key when tea­ cher presses corresponding key, volume pedal-control and con­ nector for microphone-headset. Video cameras with remote con­ trol for zoom and movement. Large TV monitor, which can be re­ placed with individual pupil monitors. Microphone-headsets. For application to the teaching of piano and other keyboards, such as those of typewriters and computers.

Description: This invention concerns a "System for simultaneous multiple keyboard teaching using closed-circuit television." A system for simultaneous multiple keyboard teaching is for example known from WO-A-8 400 633, which describes a SYSTEM FOR SIMULTANEOUS MULTIPLE KEYBOARD TEACHING being a facility combining piano keyboards, audio intercommunication, and a microphone-headset, all in a single operating unit consisting of: Teacher console with piano-keyboard and its electro-musical circuits, cassette recorder, microphone-headset socket, controls for verbal-musical monitoring between teacher and pupil and viceversa provided with LED; Pupil console, each with piano-keyboard and circuitry, circuits for illuminating each key when pressed by the teacher on his equivalent keyboard; audio circuits, including teacher keyboard and microphone output to pupil headsets, pupil keyboard output to teacher headset, audio interconnections for pupil keyboards and microphones with controls on the teacher's table and connections to console a) cassette allowing recording and reproduction in either direction of electro-acoustical signals generated in keyboards and microphones; headsets, the same number as the consoles. A major problem in the teaching of keyboard musical instruments is the need for the teacher to attend to each pupil individually, instructing him and correcting his mistakes separately while the others are left inactive. The impossibility of visually monitoring several pupils at the same time hinders collective instruction, a procedure that is feasible and standard in other types of school education. Up until now, some music teaching centers have mitigated the problem slightly by positioning a small number of instruments (three, four, five...) opposite to the teacher keyboard. This has the inconvenince of what is called the "mirror effect", in which the pupil sees the teacher's right hand on his left-hand left and viceversa, creating quite a lot of confusion among very young pupils. Another complication, by no means negligible, derives from the acoustic nature of the methods being used, which do not allow the different exercises or different levels being simultaneously practised by a group of pupils in the same classroom to be mutually isolated from each other. Even though almost all electronic musical instruments have a headset socket for silent study on one's own, this does not allow the instructive process to be monitored by the teacher, who cannot hear the pupils' performance. These situations bring with them numerous inconveniences in this kind of teaching: very little time is devoted to each beginner in conservatories and academies, with a consequent limitation on the number of pupils enrolling, a huge imbalance between the number of places available and the demand for them, very high cost of private classes when greater teacher attention is desired or needed, etc... This invention produces a satisfactory solution to the obstacles pointed out above, making collective mass teaching feasible in keyboard instrument classes, in addition to making it possible for pupils to receive more hours of instruction in a pleasant fashion. Furthermore, as a consequence of the above, general teaching of music can, from its earliest stages, be carried out in accordance with the most modern guidelines in this respect, which advocate handling the instrument from the very first class, mixing solfeggios with instrument work. With the methods used these days, this is not possible because of the enormous number of teachers and classrooms it requires. The system for simultaneous multiple keyboard teaching submitted here includes and is characterized by a facility that combines keyboards, closed-circuit television, audio intercommunication, circuits for internally illuminating each key and microphone-headsets, all in a single operating unit. Its detailed description is as follows: a) TEACHER CONSOLE, consisting of Piano-keyboard with sound generated by electro-musical circuitry. Each key is, moreover, a switch which, when pressed, closes a circuit allowing the equivalent key in the pupil console to illuminate, either for all pupils or selectively. Television monitors, of no fixed size or number, placed vertically in rows behind the keyboard and in the middle distance with respect to Audio and video camera controls. These controls include the following functions: monitoring each pupil-to-teacher music outputs; monitoring teacher-to-pupil music outputs; monitoring pupil-to-pupil; verbal communication-call with all, several or one pupil; oral pupil-to-pupil intercommunication; volume, treble and bass controls for each sound source; pupil call LED; telecontrols for camera zoom and movement; and sending signals to different television monitors. All switches will have LED to indicate when they are in operation and, for the "pupil call" will be flashing. Cassette recorder for recording and playing back to and from any console in the system. This equipment has only a recording button, giving easier operation. Microphone-headset connector. Naturally, this console also has appropriate electronics for the functions described above. Amplification and build-in speaker can be included for listening without headsets, as can an output to external speakers. b) PUPIL CONSOLES, the same in number as the teacher console television monitors. Each consists of Piano-keyboard with the same characteristics as that of the teacher. Teacher call button, with a flashing LED illuminating on the teacher's table. System for illuminating each key when the teacher presses the corresponding key on his keyboard. Volume pedal-control, generally known as the "swell". Microphone-headset connector. As with console a), these consoles contain the electronics that their functions need and an optional built-in speaker. c) VIDEO CAMERAS with remote control for zoom and spatial orientation. These are focused vertically above each keyboard, of both teacher and pupils, and connected by closed-circuit to the teacher console monitors and to d) LARGE TV MONITOR, a screen easily seen by the pupils that receives a signal from each camera as decided by the teacher. This can be replaced by the console monitors b). e) MICROPHONE-HEADSETS, as many as there are consoles, allowing monitorized listening of any of the several sound sources. This system's components have a well-known desing, so they do not need to be described for the invention to be understood. They can operate mechanically or via pre-programmed microprocessors. Some drawings are attached to aid understanding of the above. In a diagrammatic way, and solely for the purpose of providing an example, they show a practical situation of use of the equipment. Figure number one shows the teacher console with: (1) Piano-keyboard that can have between four and seven octaves; (2) Television monitors, sixteen in number; (3) Audio and camera controls; (4) Cassette recorder; (5) Multi-feed headset connector. Figure number two shows the system in use, with just two pupil consoles for reasons of space. Here can be seen: (1) Teacher with microphone-headset; (2) Teacher console; (3) Pupils with microphone-headsets; (4) Pupil consoles; (5) Large television monitor; (6) Video cameras. In this figure, one pupil is concentrating on his keyboard and another is paying attention to visual examples on the large screen placed behind the teacher. As can be deduced easily from the explanations and drawings provided, the instructor at all times monitors the pupils, both visually and aurally, yet without one pupil being acoustically disturbed by another. The music-sound examples through the headsets and the visual displays of fingering on the large screen provided by the teacher are reinforced by illumination of the actual keys that should be pressed and also by verbal instructions given to the pupil via the microphone. As well as being used for communication with the teacher to clarify doubts, the pupil microphone is useful for singing the music (solfeggio) that he is practising or any other music, in line with the most advanced psychological theories of music teaching. The interconnections between pupils, which route via the teacher's table, allow one or other to be heard selectively as necessary. Furthermore, the pupil can listen to his own performance previously recorded on the instructor's console. The recording may also be heard via external amplification. Given the facility's characteristics described above, it would be equally applicable for a range of teaching processes that use other types of keyboard, such as typewriters and computers, merely by replacing these keyboards for the piano-keyboard and omitting the musical-artistic parameters. This would consequently imply greater industrial application for the invention.

Claims: SYSTEM FOR SIMULTANEOUS MULTIPLE KEYBOARD TEACHING USING CLOSED-CIRCUIT TELEVISION, being a facility combining piano keyboards, closed-circuit television, audio intercommunication, circuits for internal illumination of each pupil key and microphone-headsets, all in a single operating unit consisting of: a) Teacher console with piano-keyboard and its electro-musical circuits, television monitors, cassette recorder, microphone-headset socket, controls for verbal-musical monitoring between teacher and pupil and viceversa provided with LED, video camera telecontrols, switches for sending video camera signals to the different monitors, flashing pupil-call LED. b) Pupil console, each with piano-keyboard and circuitry, teacher call button, circuits for illuminating each key when pressed by the teacher on his equivalent keyboard, volume pedal-control, multi-feed connector for insertion into microphone-headset. c) Video cameras with remote zoom and swivel control, focused vertically above the keyboards, connected to the teacher monitors and to, d) Large television monitor that can be replaced by each pupil's individual monitor, where any video camera signal may be displayed as controlled by the teacher. e) Audio circuits, including teacher keyboard and microphone output to pupil headsets, pupil keyboard and microphone outputs to teacher headset, audio interconnections for pupil keyboards and microphones with controls on the teacher's table and connections to console a) cassette allowing recording and reproduction in either direction of electro-acoustical signals generated in keyboards and microphones. f) Microphone-headsets, the same number as the consoles.

Inventors: CAAVEIRO PERNAS JESUS, PALACIO LOPEZ DOMINGO, CAAVEIRO PERNAS, JESUS, PALACIO LOPEZ, DOMINGO
Applicants: CAAVEIRO PERNAS JESUS, PALACIO LOPEZ DOMINGO, CAAVEIRO PERNAS, JESUS, PALACIO LOPEZ, DOMINGO
Application year: 1990
Main classification: G09B15
IPC codes: G09B15, G09B13