Communications: electrical – Digital comparator systems
Patent
1974-05-14
1976-04-13
Canney, Vincent P.
Communications: electrical
Digital comparator systems
340174TF, G11C 1900, G11C 1114
Patent
active
039507327
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.
REFERENCES:
patent: 3670313 (1972-06-01), Beausoleil et al.
patent: 3701132 (1972-10-01), Bonyharo et al.
patent: 3737881 (1973-06-01), Cordi et al.
patent: 3760387 (1973-09-01), Chang et al.
patent: 3772658 (1973-11-01), Sarlo
patent: 3797002 (1974-03-01), Brown
Chang Hsu
Chen Tien C.
Lee Share-Young
Tung Chin
Canney Vincent P.
International Business Machines - Corporation
Stanland Jackson E.
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