The parties and the court

The case is TurboCode LLC v. Baicells Technologies North America Inc., No. 2:26-cv-00910 (E.D. Tex., Marshall Division), filed October 7, 2026. The docket shows it assigned to District Judge Rodney Gilstrap and Magistrate Judge Roy S. Payne. The complaint describes TurboCode as a Texas limited liability company based in Austin, Texas, and alleges, on information and belief, that Baicells is a Texas corporation with a place of business in Plano, Texas. Venue is pleaded under 28 U.S.C. 1400(b).

The patent

U.S. Patent 6,813,742, titled High Speed Turbo Codes Decoder for 3G Using Pipelined SISO Log-Map Decoders Architecture, issued November 2, 2004. The complaint says a reexamination request was filed July 13, 2006 and a reexamination certificate issued February 10, 2009, that TurboCode is the assignee of all right, title, and interest, and that the patent expired December 15, 2021.

What the lawsuit alleges

Count I alleges, on information and belief, that Baicells directly infringed claim 6 of the '742 patent as stated in the reexamination certificate, in Texas and elsewhere in the United States by using or testing the accused instrumentalities: the Atom ID06B, Atom OD06H, Atom OD06L, Atom OD15G, Atom OD06-LX, and Atom OD15G 2.6 GHz, along with products that use the same or a materially equivalent LTE turbo-decoder implementation. The complaint quotes claim 6 as a method of iteratively decoding sequences of received baseband signals that provides an input buffer of at least three shift registers, first and second soft decision decoders serially coupled in a circular circuit, and memory modules whose output feeds back to the first decoder, processes data with a maximum a posteriori (MAP) algorithm or a logarithm approximation, and repeats the decoding a predetermined number of times. It maps the claim to Baicells product materials and the 3GPP LTE specifications.

Relief sought

TurboCode asks for a judgment that the asserted claim was infringed, damages of no less than a reasonable royalty for infringing acts within the legally recoverable period before the patent expired, interest, and costs. It demands a jury.

What to watch next

The docket shows a summons issued to Baicells on October 7, 2026. Watch for Baicells's answer or other response.