Communications: electrical – Continuously variable indicating – With meter reading
Patent
1989-02-01
1990-11-20
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
34082508, 370 858, H04Q 900
Patent
active
049721844
ABSTRACT:
A polling system for use in an audio system in which a plurality of controllers for controlling a plurality of input/output devices of the audio system and a system controller for controlling the status of the plurality of controllers are connected via a bus line. In an initial polling operation upon power-up of the system, the system controller in order confirms the connection of the plurality of controllers to the system and stores the results of confirmation. When the absence of connection of the controllers is confirmed in the initial polling operation, the system controller further monitors the level on a transmission line provided in the bus line for transmitting a requesting signal from the plurality of controllers to the system controller, and performs the polling operation once more if the presence of the requesting signal is confirmed.
REFERENCES:
patent: 4313196 (1982-01-01), Oblonsky
patent: 4435706 (1984-03-01), Callan
patent: 4595921 (1986-06-01), Wang et al.
patent: 4675864 (1987-06-01), Bliek et al.
patent: 4779092 (1988-10-01), Takao
patent: 4829297 (1989-05-01), Ilg et al.
Aoyagi Yoshio
Go Yasunao
Hayama Akira
Hirano Chiaki
Kimura Toshiyuki
Holloway III Edwin C.
Pioneer Electronic Corporation
Yusko Donald J.
LandOfFree
Polling system for use in an audio system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polling system for use in an audio system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polling system for use in an audio system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-456319