Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral configuration
Reexamination Certificate
2005-01-18
2005-01-18
Vo, Tim (Department: 2112)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral configuration
C710S316000, C709S227000, C375S232000
Reexamination Certificate
active
06845406
ABSTRACT:
Prior to the initialization, CPU of information processing equipment makes a decision about whether a communication line has been connected to a connector or not. When the two are connected, the CPU does not carry out the initialization and shifts xDSL modem to lower power consumption mode. The connection is checked as follows. A test signal is transmitted through the xDSL modem. This signal is reflected by the connector and reflection is received by hybrid circuit. When the energy of this echo is large it means that the communication line it not connected to the connector, when the energy is small it means that the two are connected.
REFERENCES:
patent: 4419751 (1983-12-01), Cholat-Namy et al.
patent: 5600712 (1997-02-01), Hanson et al.
patent: 5675813 (1997-10-01), Holmdahl
patent: 5675831 (1997-10-01), Caputo
patent: 6088430 (2000-07-01), McHale
patent: 6161201 (2000-12-01), Payne et al.
patent: 6360281 (2002-03-01), Feagans
patent: 6374288 (2002-04-01), Bhagavath et al.
patent: 6690718 (2004-02-01), Kim
patent: HEI 3-154557 (1991-07-01), None
patent: HEI 6-30074 (1994-02-01), None
patent: HEI 8-321891 (1996-12-01), None
patent: HEI 10-327259 (1998-12-01), None
Fukushima Kentaro
Hori Masato
Oshima Akira
Fujitsu Limited
Staas & Halsey , LLP
Vo Tim
LandOfFree
Information processing equipment, signal transformation... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Information processing equipment, signal transformation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information processing equipment, signal transformation... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3383951