Abstract: A keymat for use with a mobile station. The keymat includes a web for interconnecting a plurality of keys, the web and the keys lying external to the mobile-station enclosure when the mobile station is fully assembled. Means for retaining the keymat provide for it to be held in place during normal operation but permitting it to be removed so that user may exchange it for another. A plurality of key pins extending from the keys through openings in the mobile-station external housing may, but are not necessarily exchangeable with the keymat.

Abstract: A communication apparatus incorporating a visual signaling device. A first cover member and a second cover member cooperate to define a communication interior having communication components therein, permitting communication of messages. Keys are operable through one of said cover members to indicate control functions for the communication apparatus. Light emitting devices are visible through one of the cover members. A controller is responsive to operation of the keys to cause the light emitting devices to emit light signals in a pattern indicated by the operation of the keys. An accelerometer is responsive to movement of the communication apparatus to control spacing of the light signals to form a displayed light pattern.

Abstract: A keymat for use with a mobile station. The keymat includes a web for interconnecting a plurality of keys, the web and the keys lying external to the mobile-station enclosure when the mobile station is fully assembled. Means for retaining the keymat provide for it to be held in place during normal operation but permitting it to be removed so that user may exchange it for another. A plurality of key pins extending from the keys through openings in the mobile-station external housing may, but are not necessarily exchangeable with the keymat.