Patent US4653375A successfully refreshed from Google Patents.
US4653375A
Expired / Lapsed
US
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Electronic instrument having a remote playing unit
Assignee: Victor Company of Japan Ltd
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Filing: 1985-08-14
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Granted: 1987-03-31
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Expires: 2005-08-14
Abstract
Abstract An electronic instrument comprises a main electronic keyboard instrument body and a remote playing unit. The main electronic keyboard instrument body includes a keyboard, a sound generating circuit, and a processing circuit for discriminating a chord responsive to a manipulation of the keyboard and for determining a scale in accordance with the chord. The processing circuit causes the sound generating circuit to generate sound in accordance with the determined scale with a designated timing. The remote playing unit is electrically coupled to the main electronic keyboard instrument body, and comprises a plurality of elongated bar switches arranged side by side with an interval between two mutually adjacent bar switches. The timing with which the sound is generated by the main electronic keyboard instrument body is designated by manipulating and closing the bar switches.
Inventors
- 👤 Toyoharu Honda
- 👤 Masaru Futami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:18
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/32; G10H1/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
192 words
An electronic instrument comprising: a main electronic keyboard instrument body including a keyboard, sound generating means, and circuit means for discriminating chords responsive to manipulations of the keyboard and for determining a scale in accordance with said chords, said circuit means causing said sound generating means to generate sound in accordance with said determined scale with a designated timing; and a remote playing unit to be played by fingers which is detached from and electrically coupled to said main electronic keyboard instrument body, said remote playing unit comprising a plurality of elongated bar switches arranged side by side with such an interval between two mutually adjacent bar switches that each interval is small on one end of said bar switches and is large on another end of said bar switches, each of said bar switches being assigned with a pitch in accordance with said determined scale, a timing with which the sound of each pitch is generated by said main electronic keyboard instrument body being designated arbitrarily by manipulating and closing each of said bar switches, so that sound of a broken chord can be generated by sequentially manipulating said bar switches.
Claim 2
Dependent Claim
192 words
An electronic instrument comprising: a main electronic keyboard instrument body including a keyboard, sound generating means, and circuit means for discriminating chords responsive to manipulations of the keyboard and for determining a scale in accordance with said chords, said circuit means causing said sound generating means to generate sound in accordance with said determined scale with a designated timing; and a remote playing unit to be played by fingers which is detached from and electrically coupled to said main electronic keyboard instrument body, said remote playing unit comprising a plurality of elongated bar switches arranged side by side with such an interval between two mutually adjacent bar switches that each interval is small on one end of said bar switches and is large on another end of said bar switches, each of said bar switches being assigned with a pitch in accordance with said determined scale, a timing with which the sound of each pitch is generated by said main electronic keyboard instrument body being designated arbitrarily by manipulating and closing each of said bar switches, so that sound of a broken chord can be generated by sequentially manipulating said bar switches.
Claim 3
Dependent Claim
28 words
An electronic instrument as claimed in claim 1 in which six bar switches are provided on said remote playing unit in correspondence with six strings of a guitar.
Claim 4
Dependent Claim
44 words
An electronic instrument as claimed in claim 1 in which said remote playing unit comprises an approximately triangular part provided with said bar switches and a holding part unitarily extending from said approximately triangular part in the form of a neck of a guitar.
Claim 5
Dependent Claim
48 words
An electronic instrument as claimed in claim 3 in which said remote playing unit further comprises a mute switch for muting a trailing note generated by manipulations of said bar switches, and an ON/OFF switch for determining whether or not said remote playing unit is to be used.
Claim 6
Dependent Claim
91 words
An electronic instrument as claimed in claim 1 in which said circuit means of said main electronic keyboard instrument body comprises a read only memory for re-storing a predetermined program, a central processing unit for discriminating chords responsive to the manipulation of said keyboard and for determining the scale by said read only memory in accordance with the discriminated chords, and a sound source integrated circuit driven by said central processing unit for causing said sound generating means to generate the sound of the scale determined by said central processing unit.
Claim 7
Dependent Claim
62 words
An electronic instrument as claimed in claim 5 in which said circuit means of said main electronic keyboard instrument body further comprises a random access memory for storing chord data of the chords discriminated by said central processing unit, said central processing unit determining the scale by said read only memory based on the chord data stored in said random access memory.
Claim 8
Dependent Claim
61 words
An electronic instrument as claimed in claim 1 in which each of said bar switches of said remote playing unit comprises an elongated key top having a plurality of projections arranged on a lower surface thereof with an interval therebetween in the longitudinal direction, and a plurality of switch parts having contacts arranged opposing the respective projections on said key top.
References Cited (Backward Citations)
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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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |