"In connection with the settlement, Semantic has agreed to grant a non-exclusive license as to two of Semantic’s patents, i.e., U.S. Patent Nos. 5,748,177 and 5,920,303"
"A dynamic keyboard includes a plurality of keys, each with an associated symbol, which are dynamically redefinable to provide access to higher level keyboards", U.S. Patent No. 5,748,177
"An apparatus, comprising: integrated input and display device for displaying a plurality of keys of a displayed keyboard", U.S. Patent No 5,920,303"
Link to Original Source