GB1360666A - Signal generating and control system for organ - Google Patents

Signal generating and control system for organ

Info

Publication number
GB1360666A
GB1360666A GB5501171A GB5501171A GB1360666A GB 1360666 A GB1360666 A GB 1360666A GB 5501171 A GB5501171 A GB 5501171A GB 5501171 A GB5501171 A GB 5501171A GB 1360666 A GB1360666 A GB 1360666A
Authority
GB
United Kingdom
Prior art keywords
track
light
musical
photo
cell
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
GB5501171A
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.)
Opsonar Organ Corp
Original Assignee
Opsonar Organ Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Opsonar Organ Corp filed Critical Opsonar Organ Corp
Publication of GB1360666A publication Critical patent/GB1360666A/en
Expired legal-status Critical Current

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
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/03—Instruments in which the tones are generated by electromechanical means using pick-up means for reading recorded waves, e.g. on rotating discs drums, tapes or wires
    • G10H3/06—Instruments in which the tones are generated by electromechanical means using pick-up means for reading recorded waves, e.g. on rotating discs drums, tapes or wires using photoelectric pick-up means

Abstract

1360666 Electrophonic musical instruments OPSONAR ORGAN CORP 26 Nov 1971 [11 Dec 1970] 55011/71 Heading G5S An organ incorporating an optical disc record having a plurality of circular music tracks of variable opacity defining musical tones and accompaniment rhythm patterns is provided with light means to indicate the start of a musical measure on the accompaniment tracks. A further track, for producing a tremolo effect, and volume controlling means may be provided. The optical disc 12, Fig. 2, comprises tone tracks 22 and accompaniment tracks 24, each of the accompaniment tracks defining a rhythm pattern of musical notes lasting a whole number of musical measures along the 360 degree length of track. One new musical measure on each track begins on an imaginary line 47 and the other musical measure of each track begins on line 48. A synchronizing track 50 has transparent regions 52, 54 located on the lines 47, 48 and one end 58 of a light pipe 56 located above the synchronizing track receives light through the transparent regions from the light source 30. The other end 26 of the light source 56 is located on the panel of the organ such that the player sees a flashing light at the beginning of each musical measure. A tremolo effect is produced by means of a track 60, Fig. 3, which contains uniformly spaced transparent and opaque regions. A photo-cell 62, the resistance of which is dependent upon the intensity of incident light, is located to receive light passing through this tremolo track. The output from the photodetector 32 may be connected to the amplifier and loud-speaker via the photo-cell 62 to produce a tremolo effect or it may by-pass the photo-cell 62 by suitable arrangement of the switch 28. In order to control the volume while playing a swell-pedal 70 is used which controls the intensity of light incident upon a photo-cell 76 the resistance of the photo-cell being dependent upon the intensity of the incident light. The range of the volume control is initially set by means of a manual control 78 and the photocell 76 is connected in parallel with 78 to vary the volume within this preset range.
GB5501171A 1970-12-11 1971-11-26 Signal generating and control system for organ Expired GB1360666A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9721470A 1970-12-11 1970-12-11

Publications (1)

Publication Number Publication Date
GB1360666A true GB1360666A (en) 1974-07-17

Family

ID=22262122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5501171A Expired GB1360666A (en) 1970-12-11 1971-11-26 Signal generating and control system for organ

Country Status (6)

Country Link
US (1) US3647927A (en)
CA (1) CA934875A (en)
DE (2) DE2161454A1 (en)
FR (1) FR2117633A5 (en)
GB (1) GB1360666A (en)
IT (1) IT943209B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749808A (en) * 1972-03-24 1973-07-31 Mattel Inc Low distortion optical organ
US4344346A (en) * 1980-09-29 1982-08-17 Marvin Glass & Associates Musical light toy
US5451178A (en) * 1992-03-26 1995-09-19 Sony Corporation Auditory playing device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197543A (en) * 1958-08-05 1965-07-27 Dimension Inc Photoelectric organ
US3086122A (en) * 1959-08-17 1963-04-16 Baldwin Piano Co Photoelectric chorus effect generator
US3045522A (en) * 1960-03-17 1962-07-24 Allen Organ Co Light responsive variable resistance control devices for electronic musical instruments
US3249678A (en) * 1962-03-05 1966-05-03 Baldwin Co D H Photoelectric organ and appurtenances
US3214507A (en) * 1962-03-21 1965-10-26 Scope Inc Photoelectric organ
US3250845A (en) * 1963-07-01 1966-05-10 Richard H Peterson Tremulant effect for electronic musical instruments
US3325581A (en) * 1964-07-20 1967-06-13 Hammond Organ Co Organ chorus and celeste system utilizing randomly varying phase shift means
DE1188420B (en) * 1964-07-27 1965-03-04 Joachim L Heinzl Device for electronic sound generation
US3329761A (en) * 1964-09-01 1967-07-04 W W Kimball Company Two channel tremolo
US3405223A (en) * 1965-10-08 1968-10-08 Pavia Farny Associates Electronic organ
US3461217A (en) * 1966-06-27 1969-08-12 Matsushita Electric Ind Co Ltd Piano keyboard type electronic musical instrument having a bass pedal and single continuous keyboard

Also Published As

Publication number Publication date
US3647927A (en) 1972-03-07
DE7146666U (en) 1972-05-31
DE2161454A1 (en) 1972-06-22
IT943209B (en) 1973-04-02
CA934875A (en) 1973-10-02
FR2117633A5 (en) 1972-07-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees