Data communication system

Details Data communication system Data communication system

H - Electricity

03

G

325/16, 354/233

H03G 3/34 (2006.01) H04B 7/26 (2006.01) H04L 1/00 (2006.01) H04L 7/033 (2006.01) H04L 7/04 (2006.01)

Patent

CA 1130865

CM-77943 DATA COMMUNICATION SYSTEM ABSTRACT A data communication system for use in the control and monitoring of mobile stations, for example, in a bus monitoring system, from a central station over a communication channel carrying both data and voice information. Information is encoded into digital messages having a start code followed by one or more data blocks. The start code identifies the beginning of the data block that follows and enables syn- chronization of clock circuitry to the received data frequency. The data blocks havè N digital words with M binary bits where one word is a parity word and N-1 words are data words. Each of the data words has a data portion and parity portion coded for correction of at least one error. Relia- bility is enhanced by a data detector which discriminates between data and noise or voice to provide an indication of the presence of data. In transmitting the digital messages, the bits of the N words in each data block are interleaved to provide protection against error bursts.

312978

Affiliated with

Also associated with

Rating

Data communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data communication system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-49825