Case Filed: Dec 20, 2010
Case Closed: Dec 23, 2013
Court: Washington Western District Court
Judge: Richard A Jones
Case Summary:
Allvoice Developments US brought a
complaint against Microsoft accusing of infringing their U.S. patent US5799273 involving
speech recognition interface. The patent entitled ‘Automated proofreading using
interface linking recognized words to their audio data while text is being
changed’ was issued on Aug 25, 1998 and expiring[i] by Sep 24, 2016. The
patent is currently assigned[ii] to Allvoice (source: MaxVal’s Assignment Database).
According to the Court documents, the
‘273 patent describes systems where a computer translates the spoken words of
an end user into text. The text can then be copied into a word processing or
other computer application.
The complaint alleged that Microsoft
has made, used, offered for sale and sold the Windows XP and Windows Vista
operating systems that include software referred as the Text Services Framework
(TSF). The operating systems that include TSF and its related components (the Infringing
Products) are the inventions claimed in the ‘273 patent that is employed
without authorization.
The Court’s claims
construction found that the asserted claims of Allvoice’s ’273 patent are quite
specific and require a particular implementation of speech-recognition
interface that Microsoft’s accused products do not use. Later, Microsoft filed
a summary judgment and the Court granted Microsoft’s motion for summary judgment
of non-infringement, thereby entering Judgment in favor of defendant and
against plaintiff.
See 2:10-cv-02102 for more details. To
get alerts on cases filed/closed, subscribe to our Litigation Alerts.
[i] Expected expiration date. Patent Term Estimator is a free web-based tool that automatically
calculates patent terms and expiration dates for U.S. utility patents.
[ii] MaxVal
offers Patent Assignment Alert service where subscribers receive email alerts
when assignments relating to target applications, patents or entities of
interest are recorded.
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