Method for storing a second number as a command address of a first peripheral device and a third number as a command address of a second peripheral device
Patent 4912627 Issued on March 27, 1990. Estimated Expiration Date: 
December 14, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 14, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3221307 3646534 3715725 3787627 3836888 3863025 Digital data communication network and control system therefor Multipoint data communication system with collision detection Adaptive polling technique Information communication system with collision avoidance InventorsAssigneeApplicationNo. 132123 filed on 12/14/1987US Classes:710/9, Address assignment340/825.52AddressingExaminersPrimary: Lee, Thomas C.Attorney, Agent or FirmForeign Patent References
International ClassG06F 013/42AbstractA method for transferring data on a communication medium between a host computer and a plurality of peripheral devices coupled to the medium at a plurality of first address locations, including first and second peripheral devices at a one of the first address locations. The host computer transmits a plurality of first signals to the one of the first address locations requesting any peripheral devices at the one of the first address locations to transmit data to the host computer. The first peripheral device senses the medium to determine if the medium is currently in use. The second peripheral device senses the medium to determine if the medium is currently in use. The first peripheral device transmit data to the host computer when the medium is not in use. The second peripheral device discontinues the transmission of data when the medium is in use and sets an internal collision flag. The host computer transmits a plurality of second signals, including a second address, to the one of the first address locations, the second address becoming an address for the first peripheral device, and the second address not becoming an address for the second peripheral device, given that the internal collision flag for the second peripheral device is set.Other References
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