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    • 2. 发明授权
    • Instructional display device operated responsive to the playing of
stringed musical instruments
    • 教学显示装置响应于弦乐器的演奏而起作用
    • US3978757A
    • 1976-09-07
    • US559791
    • 1975-03-19
    • William T. Johnson, Jr.James B. Joseph
    • William T. Johnson, Jr.James B. Joseph
    • G09B15/06G10G1/02G01G1/02
    • G09B15/06G10G1/02
    • Separate areas of a display board are selectively activated either separately or in various combinations to illustrate a chord diagram, a fingerboard diagram, and/or a musical staff diagram. Lamps in each of the three diagrams are illuminated responsive to the playing of a specially constructed stringed instrument by the instructor to illustrate finger positions in the case of the chord diagram and the fingerboard diagram, and to illustrate musical position of the notes played on the scale diagram. One or more lock-in switches cause the activated lamps to remain lighted after the strings of the musical instrument are released by the instructor. Finally a digital readout lamp associated with each string on the chord diagram illustrates the finger which should be used to depress the corresponding string at the location indicated by the lamp.
    • 显示板的独立区域被选择性地分别地或以各种组合激活以示出和弦图,指板图和/或音乐人员图。 三个图中的每一个的灯都响应于由教练演奏专门构成的弦乐器,以在和弦图和指板图的情况下说明手指位置,并且示出在比例尺上播放的音符的音乐位置 图。 一个或多个锁定开关使乐器的琴弦被教练释放后,激活的灯保持点亮。 最后,和弦图上的每一串相关联的数字读出灯示出了应该用于在灯指示的位置处按下相应的字符串的手指。
    • 3. 发明授权
    • Portable mailing scale
    • 便携式邮件
    • US4799560A
    • 1989-01-24
    • US95762
    • 1987-09-14
    • Yukoh Kobayashi
    • Yukoh Kobayashi
    • G01G1/02G01G19/00G01G19/56
    • G01G19/002G01G1/02
    • This portable mailing scale is a small, economical, and accurate balance-type weight-scale, especially suitable for measuring light weight, such as letters, to determine correct postage. Because the scale is of the balance-type, its accuracy is far better than those of the spring-type, especially under light load. Although scales of the balance-type usually require a trial and error leveling or balancing operation and thus are less convenient to use than those of the spring-type, this invention does not require such cumbersome leveling operation.Therefore, this invention combines both the accuracy of balance-type scales and the ease of use of spring-type scales.
    • 这种便携式邮寄秤是一种小型,经济和精确的平衡型秤秤,特别适合测量重量,如字母,以确定正确的邮资。 因为秤是平衡式的,其精度远远优于弹簧式,特别是在轻负载下。 虽然平衡型的秤尺寸通常需要试验和误差调平或平衡操作,因此与弹簧式的比较不太方便,但本发明不需要这种繁琐的调平操作。 因此,本发明结合了平衡式秤的精度和弹簧式秤的易用性。