Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Patent
1997-05-08
2000-04-04
Wu, Xiao
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
345169, G09G 500
Patent
active
060467312
ABSTRACT:
A method and apparatus are disclosed for providing communication between and among multiple keyboards and a common host. The keyboards can be peers, transmitting to the host either independently (without provision for controlling interference) or cooperatively (communicating with each other prior to communicating with the common host). Alternatively, the keyboards can be prioritized, with lower-priority keyboards transmit to the host only when higher-priority keyboards are not, thereby avoiding interference with the higher-priority keyboards. Also, the keyboards can be prioritized with lower-priority keyboards communicating with the host only through the higher-priority keyboards, the higher-priority keyboards storing and forwarding data from the lower priority keyboards to higher-priority keyboards and/or the host. A method for organizing data from multiple keyboards for transmission to the host is also disclosed, in which the intended message is received by the host in the presence of interference.
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Patent Abstracts of Japan, Publication No. 042256120, Publication Date: Oct. 9, 1992, Title: Computer Input Device,, Applicant: Kajima Corp.
Campitello Robert Anthony
Griffin Lee Daniel
Ericsson Inc.
Wu Xiao
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