Systems and methods for intermittently communicating diagnostic information from user input devices
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United States of America Patent
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-
Jan 23, 2001
Grant Date -
N/A
app pub date -
Sep 24, 1997
filing date -
Sep 24, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A user input device, e.g., a wireless keyboard, for providing user inputs to a receiver unit via a communications medium intermittently transmits diagnostic messages in the communications medium such that a diagnostic message is transmitted after a predetermined interval following transmission of a preceding diagnostic message has expired. A receiver unit is responsive to the communications medium and configured to receive the transmitted diagnostic message and process the received diagnostic message to determine a status of the user input device. Preferably, the user input device is configured to transmit a diagnostic message following at least one of passage of a predetermined fixed time interval after a diagnostic message was previously transmitted from the user input device and acceptance of a predetermined number of user inputs at the user input device after a diagnostic message was previously transmitted from the user input device.
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