Monday, February 3, 2003
Intergraph announced that its intellectual property division has filed a lawsuit charging Texas Instruments with patent infringement.
Specifically, the company claims that TI has infringed three patents on parallel instruction computing (PIC): U.S. Patent No. 5,560,028 for "Software Scheduled Superscalar Computer Architecture," U.S. Patent No. 5,794,003 for "Instruction Cache Associative Crossbar Switch System," and U.S. Patent No. 6,360,313 B1 for "Instruction Cache Associative Crossbar Switch."
In its complaint, filed in the U.S. District Court for the Eastern District of Texas, Intergraph alleges that its PIC technology is an essential component in TI DSPs marketed under the name TMS320C6000 and that the C62x, C64x and C67x families of DSPs infringe its PIC patents.
However, according to Intergraph, a review of all publicly available documents for the TMS320C6000 product family confirms that the processors use the same PIC technology described by its PIC patents.
"It is necessary that we take this step to protect our intellectual property," said Jim Taylor, Intergraph's CEO, in a statement. "Our legacy in advanced microprocessor design has left Intergraph and its shareholders with valuable patents. TI's TMS320C6000 family of processors infringes upon Intergraph's patented PIC technology."
Intergraph further said that it developed its PIC technology in the early 1990s when its C5 Clipper microprocessor was designed, while TI's TMS320C6000 family of products was not introduced until 1997.
By: DocMemory
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