Communications: electrical – Continuously variable indicating – With meter reading
Patent
1983-01-25
1986-07-08
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
455 67, H04Q 900, H04B 504
Patent
active
045996156
ABSTRACT:
In a pager receiver comprising a display circuit and an ROM, a controller produces a test mode signal indicative of a test mode in which either the display circuit or the ROM is tested. Responsive to the test mode signal, the ROM supplies the display circuit with a succession of display signals which are previously stored therein and representative of all alphanumeric symbols displayed by the display circuit, so as to test the display circuit. Alternatively, all of contents stored in the ROM are successively sent from the ROM to the display circuit in response to the test mode signal on testing the ROM, so as to inspect the contents. The test mode signal may be delivered from a transmitting end to the controller in the form of a radio calling signal or given to the controller by manual operation. The test mode signal may specify more than two sorts of tests.
REFERENCES:
patent: 4021645 (1977-05-01), Saufferer et al.
patent: 4271512 (1981-06-01), Lyhus
patent: 4351059 (1982-09-01), Gregore et al.
patent: 4383312 (1983-05-01), Reed
patent: 4415770 (1983-11-01), Kai et al.
patent: 4475195 (1984-10-01), Carey
Nippon Electric Co. Ltd.
Yusko Donald J.
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