Patent ID: 6101402
Filing Date: 2000-08-08
Classification: H04M

Abstract:
A radiotelephone comprising:a main body containing a microphone;a member having a distal end and a proximal end, said member being slidably connected to said main body and comprising an acoustic duct for carrying sound, said acoustic duct having at least one sound inlet at the distal end of said member and a sound outlet at the proximal end of said member, said member having an extended position wherein said member is slid away from said main body such that the sound inlet of said acoustic duct is exposed for sound collection and the sound outlet of said acoustic duct is positioned adjacent said microphone for sound transmission, said member having a retracted position wherein said member is slid toward said main body for storage, wherein the sound inlet of said acoustic duct is located adjacent said microphone for transmitting sound directly from the sound inlet of said acoustic duct to said microphone when said member is in the retracted position such that sound may be transmitted to said microphone when said member is in either of the retracted and extended positions; anda sealing element disposed adjacent said microphone, wherein, when said member is in the retracted position, said sealing element acoustically seals at least a portion of the sound inlet of said acoustic duct to said microphone.