DE566815C - Capacitor circuit for keyboard instruments - Google Patents

Capacitor circuit for keyboard instruments

Info

Publication number
DE566815C
DE566815C DENDAT566815D DE566815DD DE566815C DE 566815 C DE566815 C DE 566815C DE NDAT566815 D DENDAT566815 D DE NDAT566815D DE 566815D D DE566815D D DE 566815DD DE 566815 C DE566815 C DE 566815C
Authority
DE
Germany
Prior art keywords
capacitor circuit
keyboard instruments
key
circuit
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DENDAT566815D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOERG MAGER
Original Assignee
JOERG MAGER
Publication date
Application granted granted Critical
Publication of DE566815C publication Critical patent/DE566815C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H5/00Instruments in which the tones are generated by means of electronic generators
    • G10H5/02Instruments in which the tones are generated by means of electronic generators using generation of basic tones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Description

Kondensatorschaltung für Tasteninstrumente Im Hauptpatent 533 549 ist eine Parallelschaltung der parallel zu schaltenden Abstimmkondensatoren eines elektrischen Schwingungskreises für Tastenmusikinstrumente mit elektrischer Tonerzeugung beschrieben, welche die Eigentümlichkeit hat, daß von mehreren gleichzeitig gedrückten Tasten die höchste Taste allein zur Wirksamkeit gelangt, während alle tieferen Tasten totgelegt sind. Es können nun Fälle eintreten, wo das Umgekehrte gewünscht ist, und dies ist auch das Ziel vorliegender Erfindung, daß nämlich von mehreren gleichzeitig gedrückten Tasten die tiefste Taste den Vorzug bei der Tongebung erhält.Capacitor circuit for keyboard instruments in main patent 533 549 is a parallel connection of the tuning capacitors to be connected in parallel electrical oscillation circuit for keyboard musical instruments with electrical sound generation described, which has the peculiarity of being pressed by several at the same time Keys, the highest key alone has an effect, while all lower keys are dead. Cases can now arise where the reverse is desired, and this is also the aim of the present invention, namely that of several at the same time keys pressed, the lowest key is given preference for tone generation.

Erfindungsgemäß geht die neue Schaltung aus der Schaltung nach dem Hauptpatent 533 549 dadurch hervor, daß jede Taste außer dem im Hauptpatent vorgesehenen Ruhekontakt noch einen Arbeitskontakt erhält, wobei die Arbeitskontakte sämtlicher Tasten durch eine gemeinsame Leitung miteinander verbunden sind.According to the invention, the new circuit is based on the circuit according to the Main patent 533 549 in that every key except the one provided in the main patent Normally closed contact still receives a working contact, the working contacts of all Keys are connected to each other by a common line.

In der Abbildung besteht der Schwingungskreis aus der Spule r und den Tastenkondensatoren r, s, t, 7e, v. Wie im Hauptpatent «,erden die Kondensatoren durch die Ruhekontakte der Tasten c, cis, d, dis, e zu einer Parallelschaltung verbunden und durch die Leitung h bei ruhenden Tasten kurzgeschlossen. Wird nun eine Taste gedrückt und der bewegliche Tastenteil dadurch auf den Arbeitskontakt gelegt, so wird dadurch gegenüber den Verhältnissen bei der Schaltung des Hauptpatents nichts geändert. Wird zu einer zuerst gedrückten Taste, z. B. e, wodurch der Kondensator v zur Wirkung gelangte, jetzt noch eine zweite Taste, z. B. cis, hinzugedrückt, so werden jetzt noch die Kondensatoren s, t, 2s über die Ruhekontakte von dis und d, die Arbeitskontakte von cis und e und über die gemeinsame Leitung parallel zum Kondensator v gelegt, es wird also der zur Taste cis gehörende Ton erklingen, wie es beabsichtigt war. Werden mehr als zwei Tasten gleichzeitig gedrückt, so bleiben die mittleren und die oberste Taste ohne Wirksamkeit.In the figure, the resonant circuit consists of the coil r and the key capacitors r, s, t, 7e, v. As in the main patent «, the capacitors are connected to a parallel circuit by the normally closed contacts of the keys c, cis, d, dis, e and short-circuited by the line h when the keys are idle. If a key is now pressed and the movable key part is placed on the normally open contact, nothing is changed as a result of the conditions in the circuit of the main patent. Becomes a key pressed first, e.g. B. e, whereby the capacitor v came into effect, now a second button, z. B. c sharp, then the capacitors s, t, 2s are now connected to the normally closed contacts of dis and d, the working contacts of c sharp and e and over the common line parallel to the capacitor v, so it becomes the one belonging to the c sharp key Sound sound as it was intended. If more than two buttons are pressed at the same time, the middle and top buttons remain ineffective.

Claims (1)

PATENTANSPRUCH: Kondensatorschaltung für Tasteninstrumente mit Tonerzeugung durch elektrische Schwingungskreise nach Patent 533 549, dadurch gekennzeichnet, daß zur Erzeugung jeweils nur des tiefsten von mehreren angeschlagenen Tönen der einer Taste zugeordnete Kondensatorpol beim Anschlag von einem Ruhekontakt auf einen Arbeitskontakt umgelegt wird, und daß alle Arbeitskontakte miteinander leitend verbunden sind.PATENT CLAIM: Capacitor circuit for keyboard instruments with sound generation by electrical oscillation circuits according to patent 533 549, characterized in that that in each case only the lowest of several struck tones is generated A capacitor pole assigned to a button when a normally closed contact hits a Working contact is turned over, and that all working contacts are conductively connected to one another are.
DENDAT566815D Capacitor circuit for keyboard instruments Expired DE566815C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE566815T

Publications (1)

Publication Number Publication Date
DE566815C true DE566815C (en) 1932-12-22

Family

ID=6567664

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT566815D Expired DE566815C (en) Capacitor circuit for keyboard instruments

Country Status (1)

Country Link
DE (1) DE566815C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577493A (en) * 1943-12-23 1951-12-04 Hartford Nat Bank & Trust Co Electric musical instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577493A (en) * 1943-12-23 1951-12-04 Hartford Nat Bank & Trust Co Electric musical instrument

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