Hand-held terminal with display screens, interactive screens, magnetic credit card readers, scanners, printers and handlers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 21, 1997
Grant Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Apr 28, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hand-held terminal for receiving, storing and transmitting information is disclosed. The terminal has a keyboard, a display and is powered by internal, rechargeable batteries. An internal battery charging circuit includes a fixed voltage power supply which is controlled to provide a constant current charging current. A low-power radio frequency transceiver, for example, of a spread spectrum technology (SST) device is provided for receiving and transmitting information between the terminal and a base radio transceiver. A modular, magnetic credit card reader is operably and removably attached to the terminal and is interchangeable with a scanner of the type which can read bar codes or the like. Modules display screens, processor/memory modules, modular keyboards, and operating handles are also shown. A modular, compact printer can also be attached to the hand held terminal. Interactive pen based display screens can be used to allow information to be input directly on the screen.
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