Sewing – Work manipulating – Guides
Patent
1976-07-27
1978-04-25
Schroeder, Werner H.
Sewing
Work manipulating
Guides
318568, D05B 302
Patent
active
040856917
ABSTRACT:
This disclosure relates to electronically controlled sewing machines and in particular to the combination of such a machine with a re-programmable static memory with which an operator can program in input data representative of a stitch position coordinates for selected patterns, which input data will be encoded into digital form, stored and decoded into input signals for initiating operation of the sewing machine stitch position actuating means to produce patterns corresponding to the operator selected pattern. The re-programmable memory can be located remote from the machine or can be built in as an integral part of the structure of the machine itself. The machine may also contain a static read-only-memory (ROM) having fixed patterns for operation of the machine with or without a re-programmable memory and includes switching means for disconnecting the read-only-memory when the re-programmable memory is connected to the machine.
REFERENCES:
patent: 3413648 (1968-11-01), Martsolf
patent: 3654882 (1972-04-01), Kamena
patent: 3783253 (1974-01-01), Anderson et al.
patent: 3872808 (1975-03-01), Wurst
patent: 3970016 (1976-07-01), Yanikoski
Uimari, "PROMs-a Practical Alternative to Random Logic," Electronic Products, Jan. 21, 1974, vol. 16, No. 8, pp. 75, 76, 77, 82, 87, 91.
Brown Jack
Coughenour Donald Jay
Bell Edward L.
Nerbun Peter
Schmidt Edward P.
Schroeder Werner H.
Smith Robert E.
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