The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 2000
Filed:
Sep. 24, 1998
Sompong Paul Olarig, Cypress, TX (US);
Usha Rajagopalan, Houston, TX (US);
Ronald Timothy Horan, Houston, TX (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
A computer system having at least one central processing unit, system memory, and a core logic capable of accepting an AGP bus is provided with an AGP to AGP bridge connected to the standard AGP bus. The AGP to AGP bridge can accommodate two or more AGP-compatible devices that can be accessed through the standard AGP bus via the AGP to AGP bridge. A PCI to memory bridge is also provided within the AGP to AGP bridge so that PCI devices may be connected to the AGP to AGP bridge. The AGP to AGP bridge is fitted with an overall flow control logic that controls the transfer of data to or from the various AGP devices and the standard AGP bus that is connected to the core logic of the computer system. The AGP to AGP Bridge can utilize a standard 32-bit AGP bus as well as (two) dual 32-bit buses to enhance bandwidth. In an alternate embodiment of the invention, the dual 32-bit buses can be combined to form a single 64-bit bus to increase the available bandwidth. Alternate embodiments of the AGP to AGP Bridge can accommodate the single 64-bit AGP bus for increased performance. Another alternate embodiment can accommodate peer-to-peer transfer of data between AGP busses on the bridge.