Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Patent
1998-07-01
2000-12-26
Lee, Thomas C.
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral adapting
710 49, 710129, 710130, G06F 1312
Patent
active
061674702
ABSTRACT:
A SCSI system including a SCSI controller, daisy-chained SCSI connectors to which SCSI devices are to be connected, and a SCSI cable interconnecting the SCSI connectors. The SCSI controller includes a circuit for controlling a REQ signal that is allowed to flow through two lines in the SCSI cable, and for controlling an ACK signal that is also allowed to flow through another two lines in the SCSI cable. One of the two lines for conveying the REQ signal alternately connects an unused pin and a REC pin of two successive SCSI connectors, and the other of the two lines alternately connects a REQ pin and an unused pin of the two successive controllers. The two lines for conveying the ACK signal interconnect the SCSI connectors in a similar manner. This enables the load capacitance of the REQ and ACK control signal lines to be reduced, thereby ensuring normal operation of up to seven high speed SCSI devices, that is, the maximum number of devices connectable to the SCSI system.
REFERENCES:
patent: Re34810 (1994-12-01), Lemaine et al.
patent: 3618020 (1971-11-01), Parker
patent: 4720744 (1988-01-01), Washi et al.
patent: 4723240 (1988-02-01), Fiorette et al.
patent: 5327459 (1994-07-01), Hara et al.
patent: 5345565 (1994-09-01), Jibbe et al.
patent: 5572659 (1996-11-01), Iwasa et al.
patent: 5696930 (1997-12-01), Garetz et al.
patent: 5699533 (1997-12-01), Sakai
patent: 5841995 (1998-11-01), Ogawa
patent: 6055587 (2000-04-01), Asami et al.
Lee Thomas C.
Mitsubishi Denki & Kabushiki Kaisha
Speight Jibreel
LandOfFree
SCSI system capable of connecting maximum number of high speed S does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with SCSI system capable of connecting maximum number of high speed S, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SCSI system capable of connecting maximum number of high speed S will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1006449