Boots – shoes – and leggings
Patent
1984-01-09
1984-11-13
Shaw, Gareth D.
Boots, shoes, and leggings
340365S, G06F 100
Patent
active
044829558
ABSTRACT:
A data transfer system in which a data entry system is converted from manual operation to automatic reading in a computer system, thereby to save time in the inputting of data into the computer system. The data entry system includes a main processor having a central processing unit (CPU) and a keyboard unit including a microprocessor. Provision of the microprocessor at the keyboard enables physical separation of the keyboard unit from the CPU by means of only a single bi-directional cable. The CPU periodically sends polling data in serial data format via the bi-directional cable to the keyboard microprocessor, which then controls a keyboard matrix scanning operation in performing the commands represented by the polling data. The microprocessor then controls serial transmission of keyboard data to the CPU via the bi-directional cable. Thus the data transfer system is suitable for high performance data transfer between the CPU of the main processor and the microprocessor of the keyboard unit.
REFERENCES:
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patent: 4096567 (1978-06-01), Millard et al.
patent: 4137564 (1979-01-01), Spencer
patent: 4277780 (1981-06-01), Sonderman et al.
patent: 4408291 (1983-10-01), Gunzberg et al.
Amano Katsumi
Ishii Takatoshi
Malamud Ronni S.
Shaw Gareth D.
Tokyo Shibaura Denki Kabushiki Kaisha
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