Appeal No. 96-2203
Application 08/160,463
BACKGROUND
The present invention is directed to a serial data network having a computer, a
plurality of peripheral units and a single series transmission line connection for sending
data and control information between the computer and the peripheral units. The computer
may clear identification codes for the peripheral units and perform initialization of the
identification codes for the units. The codes are set sequentially, but may be any code, so
any sequence of identification codes may be set. The first peripheral unit in the series
transmission line receives the first identification code sent by the computer and stores this
code as its own identification. Subsequent identification codes are passed to the next
peripheral unit in series. Each peripheral unit keeps only the first identification code it
receives and passes all others onto the next unit in series. Once the units are initialized,
instructions are sent using these assigned address identification codes of each unit.
Claim 1 is representative of the claimed invention and reproduced below:
1. A data transfer control system for controlling transmission of serial command
data to a plurality of units connected in series, said system having an identifica-tion
code initializing system for assigning each unit a unique identificaton code, said
initializing system comprising:
said plurality of units connected in series, each of said units having
separate input and output ports and each output port is connected to
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 Next
Last modified: November 3, 2007