Byte oriented DC balanced (0,4) 8B/10B partitioned block transmission code
Very high-speed digital data bus
Data modulation interface
Alternate mark/space inversion line code
Fiber optic data transmitting system
Technique for organizing and coding serial binary data from a plurality of data lines for transmission over a single transmission line
Data transmission code
Method and device for the transmission of data between stations of a communications network, in particular for motor vehicles
ApplicationNo. 250375 filed on 05/27/1994
US Classes:341/59, To or from run length limited codes341/68To or from NRZ (nonreturn-to-zero) codes
ExaminersPrimary: Williams, Howard L.
Attorney, Agent or Firm
International ClassH03M 007/00
AbstractA digital optical serial communication system and encoding method comprises a transmitter responsive to an input of parallel information for parsing the information into 4-bit groups. The 4-bit groups are encoded into 5-bit codes having a 40/60 duty cycle and wherein no more than two consecutive bits are logical 1's or 0's on either end of the 5-bit code. The 5-bit codes are serially transmitted by an optical transmission medium for providing a conduit from the transmitter to a receiver. The receiver receives and decodes the serial information to 4-bit groups. The 4-bit groups are concatenated to form a parallel packet of information suitable for data processing. The encoding/decoding scheme has the advantages of (1) a worst case duty factor of 40/60%; (2) a maximum run of bits without transition equal to five; (3) an easily recaptured framing of packets due to a unique sync symbol; and (4) simple encoding and decoding of packets using combinational logic rather than lookup tables. In addition, data can be continuously sent via a communications protocol.