Apparatus and method for identifying a failed subscriber unit in a wireless communication system
CA 2117417 C · Owner: Motorola, Inc. · Inventors: Manssen, Keith R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method provides identification of a failed subscriber unit (102) in a wireless communication system (100). In a first embodiment the, subscriber unit (102) performs a self test to detect a failure (302) of at least a portion of the subscriber unit (102). If a failure is detected a message, stored (203) in the, subscriber unit (102) is produced the stored message using a procedure which isused for incoming messages from the communication system (100). In a second embodiment, the wireless communication system (100) includes a subscriber unit (102) including a receiver (102) communicating with a transmitter (101). The subscriber unit (102) has a unique code selectable by the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 15, 1993 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.