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    • 40. 发明授权
    • Convertible half-to-full duplex radio operation selected by battery
    • 由电池选择的可转换的半对全双工无线电操作
    • US5265264A
    • 1993-11-23
    • US811859
    • 1991-12-23
    • John C. DzungScott H. Richards
    • John C. DzungScott H. Richards
    • H04B1/38H04M1/02H04M1/60H04B1/08
    • H04M1/605H04B1/3883H04M1/0262
    • A radio or speaker-microphone unit (10) includes a radio housing (11) and a first (17") or second (17') battery housing. A speaker (33) is disposed in the radio housing (11) and two microphones (34" and 34') are disposed respectively, in the radio housing (11) and in the second battery housing (17'). The battery housings (17' and 17") are selectively attachable with the radio housing (11) to provide a selection between first and second relative positions, with one of the positions providing a handset configuration and the other providing a speaker-microphone configuration. A switch (37) senses which of the battery housings (17', 17") is attached and disables (36) the microphone (34") in the radio housing (11) if the second battery housing (17') is attached.
    • 无线电或扬声器 - 麦克风单元(10)包括无线电外壳(11)和第一(17“)或第二(17')电池外壳。 扬声器(33)设置在无线电外壳(11)中,并且两个麦克风(34“和34”)分别设置在无线电外壳(11)和第二电池壳体(17')中。 电池壳体(17'和17“)可选择性地与无线电外壳(11)相连以提供第一和第二相对位置之间的选择,其中一个位置提供手机配置,另一个提供扬声器 - 麦克风配置 。 如果第二电池壳体(17')是第二电池壳体(17'),则开关(37)感测附接有哪个电池壳体(17',17“)并且禁用(36)无线电外壳(11)中的麦克风(34”) 附上。