公开(公告)号：US20040203525A1

公开(公告)日：2004-10-14

申请号：US10335337

申请日：2002-12-31

Applicant: Motorola, Inc.

Inventor： Joseph G. Gillette ,  Scott Potter ,  Sivakumar Muthuswamy ,  Steven D. Pratt

IPC: H04B001/38

CPC classification number: H04M1/23 ,  H04M1/0214

Abstract: A portable electronic device (100) includes a keypad (e.g. 300) that may be actuated from either side of a single substrate (301, 401, 501, 601, 701, 801). The keypad includes inner actuators (103) and outer actuators (205) that provide active contact, support and tactile feel from both sides of the substrate. The electronic device gains greater operability and utility since a single keypad is operable from either side of one housing.

Abstract translation: 便携式电子设备（100）包括可从单个基板（301,401,501,601,701,801）的任一侧致动的小键盘（例如300）。 键盘包括内部致动器（103）和外部致动器（205），其从衬底的两侧提供主动接触，支撑和触感。 电子设备获得更大的可操作性和实用性，因为单个键盘可从一个外壳的任一侧操作。

公开(公告)号：US20040086776A1

公开(公告)日：2004-05-06

申请号：US10687943

申请日：2003-10-17

Applicant: Motorola, Inc.

Inventor： Sivakumar Muthuswamy ,  Steven D. Pratt ,  Ronald J. Kelley

IPC: H01M004/94 ,  H01M008/10

CPC classification number: H01M8/1004 ,  H01M4/8605 ,  H01M4/861 ,  H01M4/92 ,  H01M8/0232 ,  H01M8/0239 ,  H01M8/0245

Abstract: A fuel cell (100) includes a membrane electrode assembly (110) located together with a layer of variable porosity porous gas diffusion material (150). The variable porosity gas diffusion material layer (150) operates to selectively limit the amount of reactants reaching localized areas of the membrane electrode assembly (110) in order to reduce hot spots.

Abstract translation: 燃料电池（100）包括与可变孔隙度多孔气体扩散材料（150）一起定位的膜电极组件（110）。 可变孔隙气体扩散材料层（150）用于选择性地限制到膜电极组件（110）的局部区域的反应物的量，以便减少热点。