Communications: electrical – Continuously variable indicating – With meter reading
Patent
1985-11-19
1987-06-02
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
455 38, 455 73, 340365VL, 34082544, H04Q 700, H04B 700
Patent
active
046707476
ABSTRACT:
An alphanumeric entry system which is provided with an electronic lock-out feature. The keypad entry system of the present invention comprises an alphanumeric keypad having function keys and display, a microprocessor, and an electronically programmable read-only memory device. The display consists of a series of system related menus as well as an alphanumeric display area. One of the system related menus corresponds to a locking feature, which may be activated by a general purpose function key. In the locking mode, the radio keypad toggles between a locked and unlocked condition as controlled by the function keys in accordance with a predefined sequence. The alphanumeric entry system of the present invention is particularly advantageous for use with portable two-way communications equipment which operate in a plurality of radio systems.
REFERENCES:
patent: 4007443 (1977-02-01), Bromberg et al.
patent: 4147984 (1979-04-01), Candel et al.
patent: 4161721 (1979-07-01), Conklin et al.
patent: 4207555 (1980-06-01), Trombly
patent: 4222088 (1980-09-01), Burton
patent: 4431870 (1984-02-01), May et al.
patent: 4437153 (1984-03-01), Kamiyama et al.
patent: 4445214 (1984-04-01), Reynolds et al.
patent: 4447850 (1984-05-01), Asher
patent: 4453042 (1984-06-01), Wolf et al.
patent: 4471352 (1984-09-01), Soulliard et al.
patent: 4549279 (1985-10-01), Lapeyre
Borras Jaime A.
Mitchell Timothy A.
Ramos Ozzie F.
Downey Joseph T.
Motorola Inc.
Nichols Daniel K.
Southard Donald B.
Yusko Donald J.
LandOfFree
Alphanumeric entry system having an electronic lock feature does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alphanumeric entry system having an electronic lock feature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alphanumeric entry system having an electronic lock feature will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-616579