Communications: electrical – Continuously variable indicating – With meter reading
Patent
1987-06-29
1989-03-14
Weldon, Ulysses
Communications: electrical
Continuously variable indicating
With meter reading
34082551, 379161, H04Q 100
Patent
active
048128406
ABSTRACT:
A multiple mode switching device is disclosed which is capable of interconnecting either one of a first or second apparatus, such as a controller, to a third apparatus such as a modem or a business terminal, and which is capable of operating in a first mode in which either the first apparatus or the second apparatus can be manually selected for connection to the third apparatus; in a second mode in which either the first apparatus or the second apparatus can request connection to the third apparatus and will retain such connection as long as needed; and in a third mode in which a selected one of the first apparatus and the second apparatus has priority and will always obtain and retain connection to the third apparatus when needed. First and second manually controlled switches are provided for selecting the mode and the desired apparatus in the manual mode. Logic circuitry is provided for controlling the operation of the switching device in the second and third modes of operation.
REFERENCES:
patent: 3524935 (1970-08-01), Gonsewski et al.
patent: 3644896 (1972-02-01), Chaddha
patent: 3879579 (1975-04-01), Fretwell
patent: 4013956 (1977-03-01), Dornaus et al.
patent: 4076961 (1978-02-01), Holsinger et al.
patent: 4254307 (1981-03-01), Plunkett
patent: 4291200 (1981-09-01), Smith
patent: 4314164 (1982-02-01), Tin et al.
patent: 4367374 (1983-01-01), Serrano
patent: 4379294 (1983-04-01), Sutherland et al.
patent: 4532377 (1985-07-01), Zink
patent: 4535199 (1985-08-01), Zink
patent: 4542380 (1985-09-01), Beckner et al.
patent: 4596021 (1986-06-01), Carter et al.
Hawk Jr. Wilbert
NCR Corporation
Sessler Jr. Albert L.
Weldon Ulysses
LandOfFree
Multiple mode switching means does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple mode switching means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple mode switching means will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-896698