Portable communication device with collapsible speaker enclosure
Patent 6292573 Issued on September 18, 2001. Estimated Expiration Date: 
September 30, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 30, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3866712 Collapsible speaker assembly Device for enlarging the effective volume of a loudspeaker enclosure Acoustic speaker system with expandable speaker enclosure Portable telephone with a speaker having an improved acoustic characteristic Wrist mounted telephone device Wrist-carried radiotelephone Patent #: 6192253 InventorsAssigneeApplicationNo. 409556 filed on 09/30/1999US Classes:381/386, Mounting or support feature of housed loudspeaker379/428.01, Housing or housing component379/430, Body supported (e.g., headgear)379/433.02, Speaker mounting (i.e., speaker phone feature)381/333, With furniture, clothing, or image presentation means381/335, Plural diaphragms, compartments, or housings381/387, Directional, directible, or movable381/395, Mechanical detail455/100, Body attached or connected455/347, Cabinet, housing, or chassis structure455/351, Transportable455/569.1Hands-free or loudspeaking arrangementExaminersPrimary: Kuntz, CurtisAssistant: Harvey, Dionne Attorney, Agent or FirmInternational ClassH04R 028/00AbstractA portable communication device includes a speaker enclosure having a speaker and a plurality of telescoping nested shells moveable between a collapsed configuration and an expanded configuration. The shells have a top and bottom surface and interlocking sidewalls such that when the enclosure is deployed into an expanded configuration the shells form a rigid enclosure with a substantially sealed acoustic space therein. The space tunes an acoustic compliance for the speaker so as to improve broadband frequency response whether the communication device is using a privacy or speakerphone mode of operation.Field of SearchMounting or support feature of housed loudspeakerDirectional, directible, or movable electrical insulation feature Mechanical detail With furniture, clothing, or image presentation means Portable or for use in diverse environment Plural diaphragms, compartments, or housings Curved or angled housing Body supported (e.g., headgear) Cabinet, housing, or chassis structure Transportable Body attached or connected | |
