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Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
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The invention relates to the field of communication underwater, more particularly to underwater communication using electronic writing tablets.
English (United States)
This text was extracted from a PDF file.
This is the abbreviated version, containing approximately
71% of the total text.
Page 1 of 2
Wireless communication for underwater intervention
Communication between divers and between divers and surface workers is a difficult problem. In recreational diving hand signals and underwater writing tablets are used to communicate, but are limited to the range of visibility, which is often very short, and commercial divers may use expensive microphones that permit spoken communication by requiring face masks instead of the more usual mouthpiece.
Pen computing has been around for many years, including products such as the Apple Newton, Palm Pilot and a long line of tablet computers. Such computers detect the motion of a pen (using methods such as pressure, electical resistance, ultrasound or electromagnetic fields) and record the position (and optionally pressure, angle and pen-surface contact) of the pen over time. A temporal sequence of such positions is often stored in a digital datatype known as "electronic ink". Various tablet computers have permitted the transmission of electronic ink allowing messages written on one tablet to be read on another tablet.
This invention applies the concept of electronic ink to underwater communication by proposing the unification of underwater transmission methods with PDA-like devices. Naturally such methods can be used to transmit data gathered using other sensors, particularly human input devices such as mouse, keyboard, trackpoint, touch pad, microphone etc. but pen input is particularly well-suited to data-entry by pen. Electronic ink can...