US3908502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic organ with chord control
Assignee: GIBSON PIANO VENTURES Inc A DELAWARE Corp
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Filing: 1974-06-12
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Granted: 1975-09-30
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Expires: 1994-06-12
Abstract
Abstract An electronic organ is provided in which chords can be enabled by the left hand on the lower manual or by a chord unit. However, the chord does not sound until a note is played on the upper manual as by the right hand. Thus, the playing of chords is controlled precisely in accordance with the playing of the melody notes.
Inventors
- 👤 Dennis E Kidd
- 👤 Anthony C Ippolito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:43
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/36; G10H1/38; Y; Y10; Y10S; Y10S84/00; Y10S84/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
In an electronic musical instrument, the combination comprising means for generating electric oscillations corresponding to the notes of a chord, manually operable means for selecting the electric oscillations of a desired chord, gate means to which selected oscillations are supplied, said gate means being normally inoperative to pass said oscillations means for generating oscillations corresponding to melody notes, keyboard means having a plurality of keys for manually playing a melody, and means electrically interconnecting said keys and said gate means to render said gate means effective to conduct manually selected chord oscillations whenever one of said keys is depressed.
Claim 2
Dependent Claim
99 words
In an electronic musical instrument, the combination comprising means for generating electric oscillations corresponding to the notes of a chord, manually operable means for selecting the electric oscillations of a desired chord, gate means to which selected oscillations are supplied, said gate means being normally inoperative to pass said oscillations means for generating oscillations corresponding to melody notes, keyboard means having a plurality of keys for manually playing a melody, and means electrically interconnecting said keys and said gate means to render said gate means effective to conduct manually selected chord oscillations whenever one of said keys is depressed.
Claim 3
Dependent Claim
36 words
The combination as set forth in claim 1 wherein the means electrically interconnecting said keys and said gate means comprises means for providing a pulse when any key is depressed to render said gate means conductive.
Claim 4
Dependent Claim
31 words
The combination as set forth in claim 1 wherein the manually operable means for selecting electric oscillations of a desired chord selector comprises both a chord unit and a second keyboard.
Claim 5
Dependent Claim
26 words
The combination as set forth in claim 3 wherein there are two gate means, one for said chord selector unit, and one for said second keyboard.
Claim 6
Dependent Claim
82 words
The combination as set forth in claim 4 wherein both of said gate means are simultaneously turned on upon depression of a melody key, and further including combining circuit means receiving oscillations from said gate means and comprising two secondary gates respectively connected to said chord selector unit and said second keyboard, and additional means interconnecting said chord selector unit and said second keyboard respectively with said secondary gates respectively to change each secondary gate from a non-conducting to a conducting condition.
Claim 7
Dependent Claim
25 words
The combination as set forth in claim 4 wherein one of said gate means comprises in combination a light-emitting diode and a light dependent resistor.
Claim 8
Dependent Claim
19 words
The combination as set forth in claim 6 wherein said one gate means is interconnected with the second keyboard.
Claim 9
Dependent Claim
33 words
The combination as set forth in claim 4 wherein one gate means comprises a plurality of diode gates respectively connected to different electronic oscillation generating means for the respective notes of a chord.
Claim 10
Dependent Claim
19 words
The combination as set forth in claim 8 wherein said diode gates are connected to said chord selector unit.
Claim 11
Dependent Claim
49 words
The combination as set forth in claim 4 wherein one gate means comprises a light-emitting diode and light dependent resistor combination connected to the second keyboard, and the second gate means comprises a plurality of diode gates respectively connected to the different oscillation generators of said chord selector unit.
Claim 12
Dependent Claim
45 words
The combination as set forth in claim 2 and further including a resistance-capacitance filter connected to said gate means for effecting opening of said gate means at a first time interval and closing thereof at a second time interval greater than said first time interval.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |