Communications: electrical – Continuously variable indicating – With meter reading
Patent
1983-12-27
1986-12-02
Weldon, Ulysses
Communications: electrical
Continuously variable indicating
With meter reading
34082507, 34082524, 34082552, 34082576, 340696, 3581941, 364709, H04Q 100, H04Q 700, G08C 1900
Patent
active
046268472
ABSTRACT:
A hand-held remote control transmitter for controlling a plurality of functions in a number of different devices includes a matrix keyboard comprising keys operating two independent switches with a single depression, with the first switches selecting a memory page in an IC and the second switches selecting a function code on the page by the X-Y key closure. A multi-position device switch accesses the memory page associated with the selected device. The first switches of each of a group of redefinable keys that perform the same functions in each of the different devices are connected to the multi-position device switch. The independent switches are formed by overlying two conventional membrane switches with the lower one providing tactile sensation.
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patent: 4341197 (1980-06-01), Butts
patent: 4349712 (1982-09-01), Michalski
patent: 4362911 (1982-12-01), Sears et al.
patent: 4400596 (1983-08-01), Fukukura et al.
patent: 4409450 (1983-10-01), Blades
patent: 4412218 (1983-10-01), Niitsu
patent: 4482947 (1984-11-01), Zato et al.
patent: 4495654 (1985-01-01), Deiss
Olson David W.
Weldon Ulysses
Zenith Electronics Corporation
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