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    • 3. 发明授权
    • Speaker porting for a communication device
    • 扬声器移植通信设备
    • US5721787A
    • 1998-02-24
    • US782377
    • 1997-01-13
    • Wesley B. NeibaurSteven J. Finch
    • Wesley B. NeibaurSteven J. Finch
    • H04B1/08H04B1/38H04R1/02H04R25/00
    • H04M1/03H04M1/18H04R1/023H04B1/086H04B1/3833H04B2001/3894
    • A radio (100) includes an improved speaker porting apparatus which minimizes the occurrence of water intrusion. A keypad membrane (106) has an opening (126) through its front and back surfaces and includes tunneled speaker porting (134) formed within the back surface (122) to direct audio into the opening (126). A circuit board (108) fits onto the back surface (122) of the keypad membrane (106), the circuit board (108) includes speaker porting holes (128) divided into first and second halves (130, 132). The first half of the speaker porting holes (130) align with the opening (126) of the keypad membrane (106) while the second half of the speaker porting holes (132) align with the tunneled speaker porting (134) of the keypad membrane (106). A speaker cone (138) covers the first and second halves of the speaker porting holes (130, 132).
    • 无线电(100)包括改进的扬声器移植装置,其使水侵入的发生最小化。 键盘隔膜(106)通过其前表面和后表面具有开口(126),并且包括形成在后表面(122)内的隧道式扬声器端口(134)以将音频引导到开口(126)中。 电路板(108)装配在键盘隔膜(106)的后表面(122)上,电路板(108)包括被分成第一和第二半部(130,132)的扬声器移动孔(128)。 扬声器插孔(130)的前半部分与键盘隔膜(106)的开口(126)对准,而扬声器移动孔(132)的第二半部分与键盘隔膜的隧道式扬声器端口(134)对准 (106)。 扬声器锥体(138)覆盖扬声器移动孔(130,132)的第一和第二半部分。