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公开(公告)号：US3778551A
公开(公告)日：1973-12-11
申请号：US3778551D
申请日：1969-01-17
发明人： GRODINSKY R
摘要： An audio amplifier assembly employs transistors which are subject to substantial heating, and which are mounted on heat sinks situated on the cabinet of the device, there being air passages leading from the speaker cavity within the cabinet directly to such transistors so that the speaker cone serves as a pump for cooling air that passes across such transistors.
摘要翻译： 音频放大器组件采用经受实际加热的晶体管，并且其安装在位于设备的机柜上的散热器上，存在从柜内的扬声器腔直接引导到这种晶体管的空气通道，使得扬声器锥体 作为通过这种晶体管的冷却空气的泵。
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公开(公告)号：US3716725A
公开(公告)日：1973-02-13
申请号：US3716725D
申请日：1971-01-04
发明人： FREEMAN A
CPC分类号： H03K23/66 , G10H1/40 , H03K23/588
摘要： An electronic ring counter driven by a source of pulses and having controls to bypass some of the stages of the ring counter, each stage employing a single transistor.
摘要翻译： 由脉冲源驱动的电子环形计数器，并且具有绕过环形计数器的一些级的控制，每级采用单个晶体管。
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公开(公告)号：US3553334A
公开(公告)日：1971-01-05
申请号：US3553334D
申请日：1968-01-19
发明人： FREEMAN ALFRED B
CPC分类号： G10H1/40
摘要： An electronic rhythm device including a clock generator of adjustable frequency, controls for the clock generator to produce evenly or unevenly spaced output signals, a ring counter driven by the clock generator and having controls to bypass some of the stages of the ring counter, a plurality of sound generator circuits, connecting means comprising a plurality of resistor matrices connected between the outputs of the ring counter and the outputs of the clock generator and the inputs of the sound generators, and an automatic follow circuit to control the clock generator rate and an alternative automatic follow circuit.
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公开(公告)号：US3440917A
公开(公告)日：1969-04-29
申请号：US3440917D
申请日：1967-12-29
发明人： LEMON MERLE B
CPC分类号： G10D3/046
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公开(公告)号：US2849818A
公开(公告)日：1958-09-02
申请号：US52583455
申请日：1955-08-02
发明人： RICCARDO STROLOGO
IPC分类号： G10D11/00
CPC分类号： G10D11/00
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公开(公告)号：US2511323A
公开(公告)日：1950-06-13
申请号：US63284345
申请日：1945-12-05
发明人： BRIGGS QUENTIN L , VOYLS RAYMOND A
IPC分类号： A63H23/06
CPC分类号： A63H23/06
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公开(公告)号：US3806624A
公开(公告)日：1974-04-23
申请号：US27169672
申请日：1972-07-14
发明人： KNIEPKAMP A , MOORE D
摘要： An electrical musical instrument includes a series of tone signal sources under the control of upper manual, lower manual and bass pedal key switches operatively connected to an output system. A further keying circuit includes further keyswitch means under the control of the lower manual which selectively operate a current-mode logic network which in turn drives an audio gating means connected through a single bus to the output system. A rhythm pattern generator has one output that keys said bus and a further output that controls enabling circuit means, namely a two-phase driver portion thereof that alternately energizes two current source portions which are respectively connected to the current-mode logic network whereby bass notes corresponding to the lowest and the highest keys depressed on the lower manual are reproduced by the output system in accordance with the rhythm pattern.
摘要翻译： 电子乐器包括一系列音频信号源，它们在可操作地连接到输出系统的上手动，下手动和低音踏板键开关的控制下。 另一个键控电路包括在下手册的控制下的另外的钥匙开关装置，其选择性地操作电流模式逻辑网络，该电流模式逻辑网络又将通过单个总线连接的音频门控装置驱动到输出系统。 节奏模式发生器具有一个输出，其键输出所述总线和另一个输出，该输出控制使能电路装置，即其两相驱动器部分，其交替地激励分别连接到电流模式逻辑网络的两个电流源部分，由此低音音符 对应于下部手册上按下的最低和最高键被输出系统根据节奏模式再现。
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公开(公告)号：US3694561A
公开(公告)日：1972-09-26
申请号：US3694561D
申请日：1970-04-15
发明人： MOREZ EUGENE STEPHEN
CPC分类号： G10H1/02
摘要： A plurality of tone generators respectively provide a fundamental frequency and even harmonics of the fundamental frequency to a first signal translating circuit of a musical instrument. The musical 12th or third harmonic, of the fundamental frequency is fed to a second transistor circuit which is interconnected with and shares a common output with the first transistor circuit so that the harmonics of the fundamental frequency beat with the added 12th signal component to obtain an animated effect, which simulates a nominally in-tune pair of vibrating strings. Simultaneous energization of the transistor circuits is provided by a control circuit which is responsive to a direct current keying voltage to render the transistor circuits operative to provide a percussive output envelope, and responsive to an alternating keying voltage to render the transistor circuits operative to provide a sustained output envelope.
摘要翻译： 多个音调发生器分别向乐器的第一信号转换电路提供基频的基频和偶次谐波。 基频的音乐12次或3次谐波被馈送到第二晶体管电路，该第二晶体管电路与第一晶体管电路互连并与第一晶体管电路共用一个共同输出，使得基波频率的谐波与第12个信号分量相加， 动画效果，模拟一个名义上一致的振动弦对。 晶体管电路的同时通电由控制电路提供，该控制电路响应于直流键控电压，以使得晶体管电路可操作地提供冲击输出包络，并且响应于交替的键控电压使得晶体管电路可操作地提供 持续输出信封。
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9.发明授权Musical electronic instrument keying with direct current of plural musical effects 失效具有直接电流音乐效果的音乐电子仪器
公开(公告)号：US3627895A
公开(公告)日：1971-12-14
申请号：US3627895D
申请日：1970-06-25
发明人： SAVON PETER T
摘要： An electronic musical instrument is provided with a DC current switching circuit for controlling gates that are disposed between various sources of AC potential of audio signal frequency and conventional voicing circuits and signal-to-sound converting means. The switching circuit is under the control of key switches, voice tab switches, preset voice switches, percussion switches, and repeat switches respectively associated with appropriate circuitry to provide one composite DC keying circuit.
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公开(公告)号：US3605545A
公开(公告)日：1971-09-20
申请号：US3605545D
申请日：1970-05-18
发明人： RENDELL STANLEY E
IPC分类号： G10D3/04
CPC分类号： G10D3/04
摘要： A BRIDGE, SUCH AS FOR A GUITAR, INCLUDES A RIGID BASE THAT HAS AN ELONGATED RECESS IN WHICH THERE IS SLIDABLY SUPPORTED A SADDLE WHICH SUPPORTS THE GUITAR STRINGS. AS THE SADDLE IS ADJUSTED VERTICALLY, IT IS GUIDED BY A GUIDE SURFACE WITHIN THE RECESS TO PRECLUDE ANY ROCKING OR COCKING.
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