GB1365716A - Musical devices - Google Patents
Musical devicesInfo
- Publication number
- GB1365716A GB1365716A GB5296671A GB5296671A GB1365716A GB 1365716 A GB1365716 A GB 1365716A GB 5296671 A GB5296671 A GB 5296671A GB 5296671 A GB5296671 A GB 5296671A GB 1365716 A GB1365716 A GB 1365716A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- instrumentalist
- notes
- unijunction
- selectable
- 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
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC 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
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/38—Chord
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S84/00—Music
- Y10S84/08—Keyed oscillators
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
1365716 Electrophonic musical instruments SEEBURG CORP OF DELAWARE 15 Nov 1971 [13 Nov 1970] 52966/71 Heading G5J A tonal rythmic accompaniment is provided by a tone generator system which is automatically actuated to produce one of a number of selectable patterns of notes of a scale and controlled by an instrumentalist to select the tonality of the scale. In a first embodiment, the tone generator system comprises nine unijunction oscillators 119-127, Fig. 3, each producing a tone signal having a predetermined relationship to a tonic. The tone signals are connected via a frequency stabilizing flip-flops 145, voicing network 165-169 and sustain keying circuit to a transducer. The keying circuits are actuated in any one of five selectable sequences by pulses applied at 109-117 to sustain capacitors 160 from a logic circuit fed by a pulse generator, Fig. 1 (not shown). To contro the tonality of the notes produced, the instrumentalist closes one of the pedal switches 171- 183, Fig. 4, to apply positive voltage to the base of a corresponding transistor 218 and so short a selected point of the resistor chain 184-197 to ground. This selects the voltage on the base of transistor 223 which controls the voltage applied to the anodes 132 of the unijunction oscillators, Fig. 3. In a second embodiment, Figs. 6-8 (not shown) a single unijunction oscillator is used and the sequence of notes is produced by superimposing on the anode voltage selected by the instrumentalist an automatically selectable voltage in the form of the voltage drop across a number of resistors selected by nine field effect transistors.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8936370A | 1970-11-13 | 1970-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1365716A true GB1365716A (en) | 1974-09-04 |
Family
ID=22217247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5296671A Expired GB1365716A (en) | 1970-11-13 | 1971-11-15 | Musical devices |
Country Status (6)
Country | Link |
---|---|
US (1) | US3688009A (en) |
BE (1) | BE775285A (en) |
CA (1) | CA944594A (en) |
DE (1) | DE2156279A1 (en) |
GB (1) | GB1365716A (en) |
NL (1) | NL7115506A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3795755A (en) * | 1971-06-24 | 1974-03-05 | Nippon Musical Instruments Mfg | Automatic accompaniment device of an electronic musical instrument |
US4072078A (en) * | 1976-04-19 | 1978-02-07 | C.G. Conn, Ltd. | System for automatically producing tone patterns |
US4127048A (en) * | 1977-05-18 | 1978-11-28 | Cbs Inc. | Pedal tone generator having means for automatically producing tone patterns based on tonic note |
US4292874A (en) * | 1979-05-18 | 1981-10-06 | Baldwin Piano & Organ Company | Automatic control apparatus for chords and sequences |
US7518053B1 (en) * | 2005-09-01 | 2009-04-14 | Texas Instruments Incorporated | Beat matching for portable audio |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3180918A (en) * | 1961-01-26 | 1965-04-27 | Conn Ltd C G | Tone generator system |
US3283057A (en) * | 1964-06-26 | 1966-11-01 | Seeburg Corp | Keyboard oscillator circuit |
US3358068A (en) * | 1964-06-26 | 1967-12-12 | Seeburg Corp | Automatic rhythm device |
US3255292A (en) * | 1964-06-26 | 1966-06-07 | Seeburg Corp | Automatic repetitive rhythm instrument timing circuitry |
US3546355A (en) * | 1968-06-24 | 1970-12-08 | Motorola Inc | Automatic tone generating system for an electronic organ |
US3548066A (en) * | 1968-07-29 | 1970-12-15 | Alfred B Freeman | Plural mode automatic bass note system for musical chords with automatic rhythm device |
US3562395A (en) * | 1969-07-02 | 1971-02-09 | Richard H Peterson | Monophonic musical tone system with single keyed oscillator, pedal clavier, and percussion arrangement |
US3567838A (en) * | 1969-11-12 | 1971-03-02 | Hammond Corp | Musical instrument rhythm system having provision for introducing automatically selected chord components |
-
1970
- 1970-11-13 US US89363A patent/US3688009A/en not_active Expired - Lifetime
-
1971
- 1971-11-08 CA CA127,106A patent/CA944594A/en not_active Expired
- 1971-11-11 NL NL7115506A patent/NL7115506A/xx not_active Application Discontinuation
- 1971-11-12 DE DE19712156279 patent/DE2156279A1/en active Pending
- 1971-11-12 BE BE775285A patent/BE775285A/en unknown
- 1971-11-15 GB GB5296671A patent/GB1365716A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA944594A (en) | 1974-04-02 |
DE2156279A1 (en) | 1972-05-18 |
US3688009A (en) | 1972-08-29 |
NL7115506A (en) | 1972-05-16 |
BE775285A (en) | 1972-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |