| 摘要 |
Underwater communication device for diver communication by text messages. On e embodiment is used to communicate text messages visually among divers in the same dive site. It has a keyboard and a display. The diver enters a message on the keyboard. The message appears on the display. The diver shows the display to the other divers in the vicinity, an d they read the message. The diver can also select and display standard messages that are factory preset, or custom messages stored by the diver before the dive. A second embodiment is used to communicate text messages by data communication over a wire between divers and a ship, a submarine, an ocean rig or other divers at a distance. Two units of the text communication devic e are used, each unit connected to one end of the wire, and they function as data communication terminals. It is also possible to connect multiple units to the wire, forming a network. This embodiment also includes a data communication interface such as an ethernet interface, a serial interface or a telephone modem.
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