Photocopying – Contact printing – Light boxes
Patent
1996-04-17
1998-05-05
Decady, Albert
Photocopying
Contact printing
Light boxes
355891, G06F 1134
Patent
active
057488878
ABSTRACT:
An inter-processor asynchronous serial communication transmission/reception apparatus using each other's memories. Some strips of line and a few drivers are used to transmit data far in an asynchronous serial communication manner employing dual port random access memories. Therefore, the present invention is economical and convenient to use. Further, one processor can use the dual port random access memory of the other processor like its own memory. This enables a parallel communication manner. Moreover, a wait signal is used when the data transmission and reception between processors are frequently performed. The use of wait signal requires no function for processing overhead resulting from an interrupt.
REFERENCES:
patent: 4377843 (1983-03-01), Garringer et al.
patent: 5388091 (1995-02-01), Kagawa
patent: 5392289 (1995-02-01), Varian
Kim Jae Kon
Kim Young Goo
De'cady Albert
Hyundai Electronics Industries Co,. Ltd.
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