[Help] [Welcome] [Boolean] [Advanced] [Sales] [USPTO] [CNIDR] --------------------------------------------------------------------------- --------------------------------------------------------------------------- United States Patent 3,950,732 Chang, et. al. Apr. 13, 1976 --------------------------------------------------------------------------- Single technology text editing system Inventors: Chang; Hsu (Yorktown Heights, NY); Chen; Tien C. (San Jose, CA); Lee; Share-Young (Lake Mohegan, NY); Tung; Chin (San Jose, CA). Assignee: International Business Machines Corporation (Armonk, NY). Appl. No.: 469,926 Filed: May 14, 1974 Intl. Cl.: G11C 19/00; G11C 11/14 U.S. Cl.: 340/172.5; 340/174.TF Field of Search: 342/174 TF, 174 SR, 174 CL, 172.5, 173 R --------------------------------------------------------------------------- References Cited [Referenced By:] --------------------------------------------------------------------------- U.S. Patent Documents 3,670,313 Jun., 1972 Beausoleil et al. 340/174CL 3,701,132 Oct., 1972 Bonyharo et al. 340/174CL 3,737,881 Jun., 1973 Cordi et al. 340/174CL 3,760,387 Sept., 1973 Chang et al. 340/174CL 3,772,658 Nov., 1973 Sarlo 340/173SM 3,797,002 Mar., 1974 Brown 340/174CL Primary Examiner: Canney; Vincent P. Attorney, Agent or Firm: Stanland; Jackson E. --------------------------------------------------------------------------- Abstract --------------------------------------------------------------------------- A text editing system is described which is comprised of single technology elements. That is, the system is comprised of dynamic shift registers which are entirely implemented with either magnetic bubble domain devices or charge coupled devices. These shift registers can be randomly accessed using write and read decoders to provide great flexibility in entry, retrieval, and restoring of data. An editing shift register is used for text editing functions, such as insertion of data, deletion of data, etc. This editing shift register performs the data manipulation functions by using techniques such as freezing of data bits and bypassing of data bits in order to change the order of the data and to close gaps which may occur in the data. The shift registers used for storage and the editing shift register are characterized in that all data manipulation functions and all accessing functions do not require a change in the sequence of the drive field used to move the data bits. 11 Claims, 9 Drawing Figures --------------------------------------------------------------------------- [USPTO] [CNIDR] ---------------------------------------------------------------------------