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    • 3. 发明授权
    • Headset interface assembly
    • 耳机接口组件
    • US5448646A
    • 1995-09-05
    • US146728
    • 1993-11-01
    • Robert E. LuceyJames T. MacDonald, Jr.
    • Robert E. LuceyJames T. MacDonald, Jr.
    • H04M1/60H04R5/033H04R1/10
    • H04R5/04H04M1/60H04R2420/09H04R5/033
    • An interface assembly for providing an electrical and mechanical interface between a headset and a headset amplifier, includes a transmit signal path for receiving a signal from the headset microphone and for providing an output signal having electrical characteristics compatible with the headset amplifier. The interface assembly also includes a receive signal path for receiving a signal from the headset amplifier and for providing a signal having electrical characteristics compatible with the headset coupled thereto. Compatibility from headset to headset amplifier may be achieved by adjusting one or more characteristics including but not limited to the frequency response, input/output impedance matching, level adjustment and RFI suppression. Compatibility from headset amplifier to headset may be achieved by adjusting one or more characteristics including but not limited to sound pressure protection, frequency response shaping, input/output impedance matching, level adjustment, ground isolation and RFI suppression.
    • 一种用于在耳机和耳机放大器之间提供电气和机械接口的接口组件,包括用于接收来自耳机麦克风的信号的发射信号路径,并提供具有与耳机放大器兼容的电特性的输出信号。 接口组件还包括用于接收来自耳机放大器的信号的接收信号路径,并且用于提供具有与耦合到其的耳机兼容的电特性的信号。 耳机与耳机放大器的兼容性可以通过调整一个或多个特性来实现,包括但不限于频率响应,输入/输出阻抗匹配,电平调整和RFI抑制。 从耳机放大器到耳机的兼容性可以通过调整一个或多个特性来实现,包括但不限于声压保护,频率响应整形,输入/输出阻抗匹配,电平调整,接地隔离和RFI抑制。
    • 7. 发明授权
    • Earphone with adjustable headband with progressively shallow detents
    • 带可调式头带的耳机,带有逐渐浅的棘爪
    • US5117465A
    • 1992-05-26
    • US670531
    • 1991-03-15
    • James T. MacDonald
    • James T. MacDonald
    • H04R1/10
    • H04R1/105H04R1/10H04R5/0335
    • An adjustable headset headband including a resilient band of a shape and size to fit over the head of a wearer. The band has a first end and a second end and a positioning member fixedly attached adjacent the first end. The headband also includes a housing having a first end and a second end. The positioning member is movably mounted within the housing such that the second end of the housing is oriented nearest the second end of the band. The housing includes a plurality of depressions linearly arranged within the housing from the first end of the housing to the second end of the housing, each depression of the plurality of depressions having a shallower depth than the preceeding depression. The positioning member releasably engages one of the plurality of depressions so as to maintain the positioning member at a predetermined portion within the housing.
    • 一种可调式耳机头带,其包括形状和尺寸的弹性带,以适合佩戴者的头部。 带具有第一端和第二端以及固定地附接在第一端附近的定位构件。 头带还包括具有第一端和第二端的壳体。 定位构件可移动地安装在壳体内,使得壳体的第二端定向成最靠近带的第二端。 壳体包括从壳体的第一端到壳体的第二端线性地布置在壳体内的多个凹部,多个凹陷的每个凹陷具有比先前的凹陷更浅的深度。 定位构件可释放地接合多个凹部中的一个,以便将定位构件保持在壳体内的预定部分。