Abstract :
G.R. Partridge, author of the paper, "A Transistorized Pulse Code Modulator," which appeared on pages 7-12 of the December, 1954 issue of the IRE Transactions on Electronic Computers, has called attention to the following omission. The quantizing system described in the first part of the paper was disclosed in United States Patent 2,612,550 (September, 1952) issued to G.T. Jacobi of the General Electric Company. The author regrets that this information was unknown to him.