Patent
1996-04-25
1998-07-07
Sheikh, Ayaz R.
395828, 395834, 395831, 395882, 395883, 395884, 395892, 395282, 395281, H01J 1300
Patent
active
057782059
ABSTRACT:
A data communication system comprises a portable data processing terminal, such as an electronic notebook, and an external data processing apparatus, such as a personal computer. When the electronic notebook is connected to an RS232C I/F box connected to the personal computer, an I/F switch provided in the electronic notebook is switched on to supply a connection signal to an RS232C I/F circuit in the electronic notebook. An interruption signal is supplied from the RS232C I/F circuit to a CPU of the electronic notebook so that a communication program previously stored in a ROM is activated and a communication request is sent to the personal computer. The personal computer responds to the communication request sent from the electronic notebook and returns a response signal so that a data communication process is performed.
REFERENCES:
patent: 5269005 (1993-12-01), Heil et al.
patent: 5371873 (1994-12-01), Niwa
patent: 5421018 (1995-05-01), Hiyama
patent: 5454080 (1995-09-01), Fasig et al.
patent: 5526493 (1996-06-01), Shu
patent: 5566226 (1996-10-01), Mizoguchi et al.
patent: 5598537 (1997-01-01), Swanstrom et al.
patent: 5598539 (1997-01-01), Gephardt et al.
patent: 5611055 (1997-03-01), Krishan et al.
Casio Computer Co. Ltd.
MacPherson Alan H.
Marino Fabio E.
Phan Raymond N.
Sheikh Ayaz R.
LandOfFree
Data communication system and portable data processing terminal 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 and portable data processing terminal , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data communication system and portable data processing terminal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1216514