Apparatus for storing and retrieving data in predetermined multi

Details Apparatus for storing and retrieving data in predetermined multi Apparatus for storing and retrieving data in predetermined multi

1984-02-22

1987-05-05

Thomas, James D.

Boots, shoes, and leggings

364749, G06Z 1204, G06Z 300

Patent

active

046637320

ABSTRACT:
An apparatus for storing and retrieving data in predetermined multi-bit length quantities containing fewer bits of data than word length quantities, including a memory for storing word length quantities at particular storage sites, a first buffer for selectively receiving data bits contained in a first predetermined portion of a word length quantity of data stored at a particular address within the memory, a second buffer for selectively receiving data bits contained in a second predetermined portion of the word length quantity of data stored at the particular address, a third buffer for alternatively receiving data bits contained in the second predetermined portion of the word length quantity of data stored at the particular address, a data bit generator for generating a null signal in the form of a predetermined number of data bits, a data bus having a first data transfer part and a second data transfer part connected to the memory, a CPU for causing the respective first and second portions of data and the null signal to be transferred from the memory and/or the data bit generator through the first, second, or third buffers to the data bus in accordance with one of the three following alternatives:

REFERENCES:
patent: 4219874 (1980-08-01), Gusev et al.
patent: 4447878 (1984-05-01), Kinnie et al.
patent: 4471458 (1984-09-01), Weilbacker et al.
patent: 4502115 (1985-02-01), Eguchi
patent: 4556960 (1985-12-01), Cohn et al.

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