Patent
1992-12-28
1995-10-03
Lall, Parshotam S.
G06F 1576
Patent
active
054559278
ABSTRACT:
An upgradeable/downgradeable data processing system capable of operating with different types of central processing units (CPU). The system has a first socket for registration of a first CPU and a second socket for registration of a second CPU. Means are provided for preventing possible signal contention between the first and second CPU, and for synchronizing clocks for operating a CPU with the system clock. Means are also provided for interfacing with a coprocessor associated with the different types of CPU as well as for adjusting the signals to and from the CPU to the signal width of the system.
REFERENCES:
patent: Re31318 (1983-07-01), Kaufman et al.
patent: 3721961 (1973-03-01), Edstrom et al.
patent: 4075693 (1978-02-01), Fox et al.
patent: 4281392 (1981-07-01), Grants et al.
patent: 4443846 (1984-04-01), Adcock
patent: 4484273 (1984-11-01), Stiffler et al.
patent: 4591975 (1986-05-01), Wade et al.
patent: 4703419 (1987-10-01), Krause et al.
patent: 4716526 (1987-12-01), Mori et al.
patent: 4860252 (1989-08-01), Sykora
patent: 4862355 (1989-08-01), Newman et al.
patent: 4899306 (1990-02-01), Greer
patent: 4908789 (1990-03-01), Blokkum et al.
patent: 4947478 (1990-08-01), Maeno
patent: 4951248 (1990-08-01), Lynch
patent: 4953930 (1990-09-01), Ramsey et al.
patent: 4964074 (1990-10-01), Suzuki et al.
patent: 5077686 (1991-12-01), Rubinstein
patent: 5101342 (1992-03-01), Namimoto
patent: 5109506 (1992-04-01), Begun
patent: 5297272 (1994-03-01), Lu et al.
IBM Technical Disclosure Bullitin, IBM Corp., Sep. 1989, vol. 32, No. 4A, pp. 467.
"Motherboard Convertibility," BYTE, Jun. 1991, p. 68.
Judy Wong, Modular CPU Upgrade Comparison of Acer, ALR and AST, Jun. 13, 1991, pp. 1-2.
Electronic Engineering Times, "Intel Rolls Out Road Map: At PC EXPO: Upgrade Plans and 586 Hints," Jul. 9, 1991.
Spiegelman, Lisa L., "12 New Microprocessors to be Unleashed by Intel: Move Could Speed User Upgrades," Computer Reseller News, Jul. 1, 1991.
Acer Incorporated
Ellis Richard L.
Lall Parshotam S.
Slone David N.
LandOfFree
Dual socket upgradeable computer motherboard with automatic dete does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual socket upgradeable computer motherboard with automatic dete, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual socket upgradeable computer motherboard with automatic dete will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1083123