Pulse or digital communications – Synchronizers – Synchronization failure prevention
Patent
1997-10-29
2000-05-30
Chin, Stephen
Pulse or digital communications
Synchronizers
Synchronization failure prevention
375356, 700 2, 700 3, 700 8, 700 9, 700 11, 709208, 709212, 709248, 709400, 713400, 713600, 358443, 358468, H04L 700, G05B 1918, G05B 1502, G06F 1516
Patent
active
060699264
ABSTRACT:
A communication control system includes a first communication control apparatus connected to one end portion of each of a clock signal line and a data signal line, and a second communication control apparatus connected to the other end portion of each of the clock signal line and the data signal line. In the communication system, the first communication control apparatus outputs a clock to the clock signal line and simultaneously outputs predetermined data to the data signal line, and then outputs a data string to be transmitted, the second communication control apparatus receives the clock from the clock signal line and simultaneously receives the predetermined data from the data signal line, and accordingly starts to receive the predetermined data string, the first communication control apparatus outputs the clock to the clock signal line independently of whether a communication abnormality is detected, and simultaneously outputs inverted data of the predetermined data to the data signal line to initialize the data reception device, and the second communication control apparatus receives the inverted data together with the clock, thereby canceling erroneous recognition of the start of the data string due to the noise mixture into the clock signal line.
REFERENCES:
patent: 4573083 (1986-02-01), Shimizu
patent: 4817177 (1989-03-01), Shimizu
patent: 5199107 (1993-03-01), Ozawa
patent: 5895140 (1999-04-01), Koh et al.
Sekiya Toshiyuki
Soya Takashi
Canon Kabushiki Kaisha
Chin Stephen
Maddox Michael W.
LandOfFree
Communication control system and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Communication control system and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communication control system and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1916517