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41. 发明专利

SE7500112A 未知
公开(公告)号：SE7500112A
公开(公告)日：1975-07-09
申请号：SE7500112
申请日：1975-01-07
申请人： BALDWIN CO D H
发明人： JORDAN J F , LAMPKIN C M
IPC分类号： H01L31/04 , C03C17/34 , H01L21/368 , H01L31/0336 , H01L31/18 , C03C17/22
CPC分类号： H01L31/1876 , C03C17/3417 , C03C17/347 , C03C2217/211 , C03C2217/228 , C03C2218/112 , H01L21/02422 , H01L21/02474 , H01L21/02491 , H01L21/02568 , H01L21/02628 , H01L31/03365 , Y02E10/50 , Y02P70/521

42. 发明专利

GB1380080A ELECTRONIC MUSICAL INSTRUMENTS 未知
公开(公告)号：GB1380080A
公开(公告)日：1975-01-08
申请号：GB5917271
申请日：1971-12-20
申请人： BALDWIN CO D H
IPC分类号： G10H1/28 , G10H1/02
摘要： 1380080 Electronic musical instruments D H BALDWIN CO 20 Dec 1971 [30 Dec 1970] 59172/71 Heading G5J In an electronic keyboard instrument, notes constituting an arpeggio can be sounded by selection of an electronic sequential read-out system. In Fig. 1, actuation of a key 10 activates a gate, corresponding with that key, and, if so selected by octave control 12, any number of higher notes having integral numbers of octave separations from the note activated. Simultaneously, the sequential read-out 13, is activated by a control pulse via lead SS. Readout 13 scans out all activated gates in sequence, to a limit of twenty gates, in such a way that the selected gates pass tones in terms of note nomenclature, up, in order of increasing frequencies and down, in order of decreasing frequencies. The gates lead to tone colour filters 14, amplifier 15 and loud-speaker 16. Read-out 13 may be disabled by a switch 18, the "piano mode" whereby any chord played is sounded as a chord; or, on closure of switch 17, the "up only mode", the gates are scanned upwards, and then rapidly reset and re-started if any key is actuated; or, on closure of switch 19, the "up and down mode", the chord selected is scanned up and then down again at the same speed. The gates employed may be variable sustain gates, and the time required to complete an arpeggio is variable at will. For reasons of economy in circuitry, the tone gates are, for the purposes of scanning, grouped in units of three, so that only one out of three adjacent notes may be sounded at the one time.

43. 发明专利

CA925288A MUSIC LABORATORY 未知
公开(公告)号：CA925288A
公开(公告)日：1973-05-01
申请号：CA84742
申请日：1970-06-05
申请人： BALDWIN CO D H
发明人： MARTIN D , MORGAN R

44. 发明专利

CH528122A Piano électrique 未知
公开(公告)号：CH528122A
公开(公告)日：1972-09-15
申请号：CH878470
申请日：1970-06-11
申请人： BALDWIN CO D H
发明人： DANIEL W MARTIN , JOHN L STEIN
IPC分类号： G10H3/18 , G10C7/00

45. 发明专利

DE1954303A1 未知
公开(公告)号：DE1954303A1
公开(公告)日：1971-05-06
申请号：DE1954303
申请日：1969-10-29
申请人： BALDWIN CO D H
发明人： L FERRIS ROBERT , W MARTIN DANIEL
IPC分类号： G10C3/10

46. 发明专利

ZA703475B ELECTROPIANO 未知
公开(公告)号：ZA703475B
公开(公告)日：1971-03-31
申请号：ZA703475
申请日：1970-05-22
申请人： BALDWIN CO D H
发明人： MARTIN D , STEIN J
IPC分类号： G10C20060101 , G10C

47. 发明专利

DE1597021A1 未知
公开(公告)号：DE1597021A1
公开(公告)日：1970-03-26
申请号：DEB0093956
申请日：1967-08-12
申请人： BALDWIN CO D H
发明人： ALLEN CONKLIN JUN HAROLD
IPC分类号： G10C3/08 , G10C3/04
摘要： 1,170,339. Pianos. D. H. BALDWIN CO. 7 Aug., 1967 [15 Aug., 1966], No. 36157/67. Heading G5J. In a stringed instrument, e.g. a grand piano, a string-terminating element 29 has two oppositely-directed deflectors 28, 30 and is perforated therebetween for the passage of a string, so as to reduce damping of the string. The deflectors 28, 30 preferably have a radius of at least 3/16 in. and are coated with brass or plastics. Numerous ways of forming the deflectors and of attaching them to the front portion 8 of the string plate (5) are described.

48. 发明专利

CA781624A OPTICAL ENCODER 未知
公开(公告)号：CA781624A
公开(公告)日：1968-03-26
申请号：CA781624D
申请人： BALDWIN CO D H
发明人： JONES EDWARD M

49. 发明专利

GB1101050A Transducer bridge for a stringed instrument 未知
公开(公告)号：GB1101050A
公开(公告)日：1968-01-31
申请号：GB2235766
申请日：1966-05-19
申请人： BALDWIN CO D H
IPC分类号： G10H3/18
摘要： 1,101,050. Electric guitar pick-up. D. H. BALDWIN CO. 19 May, 1966 [30 Aug., 1965], No. 22357/66. Heading G5J. The Figure shows a piezo-electric pick-up for a stringed musical instrument such as an electric guitar. A U-shaped member is slotted 15 along its upper limb 14, the separated cantilever portions thus provided having each a raised notched part 18 to act as the bridge for a particular string. The piezo-electric crystals 20 are in contact with the underside of the cantilevers and are supported by a copper shim 21 slotted between adjacent crystals, a strip 22 of electric insulation which is resilient mechanically and prevents the transmission of transients to the output, and a continuous lower copper shim 23. The output is taken from the two copper shims. To enable a tremolo bar to be used, the bridge is mounted on two conical surfaces provided on the upper sides of knurled nuts 12. In an alternative arrangement (Figs. 5 and 6, not shown), each separate cantilever is provided with an adjustable string carrier which may be adjusted along the length of the string and clamped in position by a screw; the bridge is also tapered transverse to the length of the guitar.

50. 发明专利

FR1459856A 未知
公开(公告)号：FR1459856A
公开(公告)日：1966-06-17
申请号：FR27013
申请日：1965-08-03
申请人： BALDWIN CO D H
IPC分类号： G10K15/10

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