Times Mirror Co. completed the previously announced sale of the Dallas Times Herald to a company headed by William Dean Singleton . . . Beverly Hills-based Giant Group Ltd. has received early termination of the waiting period under the Hart-Scott-Rodino Act relating to Giant's acquisition of additional shares of common stock of TRE Corp. . . . Monolithic Memories filed a patent infringement complaint in U.S. District Court for the Northern District of California against Altera Corp. of Santa Clara, Calif., and Lattice Semiconductor of Beaverton, Ore. . . . Eastman Kodak said it is delaying the introduction of an electronic still-camera system for the consumer market.