Computer graphics processing and selective visual display system – Plural display systems – Diverse systems
Reexamination Certificate
2005-01-25
2005-01-25
Mengistu, Amare (Department: 2673)
Computer graphics processing and selective visual display system
Plural display systems
Diverse systems
C345S001100, C345S504000, C345S520000, C348S121000, C348S123000
Reexamination Certificate
active
06847335
ABSTRACT:
A circuit and method serves as a slave interface to support both register read/write and monitor detection operations by a graphics controller chip, or other display data source, with a plurality of display devices. The circuit supports differing monitor detection protocols including, for example, I2C protocol and non-DDC type protocols. The circuit may be set in two modes, a register mode and a bypass mode. The register mode is used to facilitate standard I2C protocol to a display device. Display detection bypass circuitry is used to selectively bypass the register based display detector interface by connecting input pins to any two of a plurality of I/O pins so that the system may be used for monitor detection of a plurality of different display devices, such as CRTs and LCDs to facilitate multiprotocol display detection.
REFERENCES:
patent: 5727191 (1998-03-01), Konishi et al.
patent: 5874928 (1999-02-01), Kou
patent: 5953074 (1999-09-01), Reddy
patent: 5963192 (1999-10-01), Wong et al.
patent: 6028585 (2000-02-01), Ishii et al.
Chang Chen-Jen Jerry
Chih David
Pang Erwin
ATI International SRL
Mengistu Amare
Nguyen Jimmy H.
Vedder Price Kaufman & Kammholz
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