Communications: electrical – Continuously variable indicating – With meter reading
Reexamination Certificate
1997-05-28
2001-02-20
Rao, Seema S. (Department: 2732)
Communications: electrical
Continuously variable indicating
With meter reading
C340S870030, C345S050000
Reexamination Certificate
active
06191702
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a data display radio pager and, more particularly, to a data display radio pager capable of allowing the user of the pager to select a desired message display method.
Today, diversified and international social and economic activities are supported by data communications systems. This, coupled with diversifying lifestyle and broadening range of activities, has increased the demand for mobile communication services which can be shared by many people at low cost. Handy phone systems, cordless systems, radio paging systems and so forth extensively used today implement such a communication system. Up-to-date radio paging systems in particular have multiple functions and offer not only the traditional paging using an alert tone, but also various kinds of message services. The user of a data display radio pager is capable of carrying the pager and causing it to display a message in the form of numerals or a fixed or an unfixed sentence by way of example.
However, the problem with the conventional data display radio pager is that a message received from a base station is displayed on, e.g., an LCD in its complete form. As a result, even a person other than the user of the pager can easily see the content of the message appearing on the LCD. The pager therefore cannot protect important or private messages meant for the user from the third party's illicit access.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a data display radio pager capable of allowing the user of the pager to select a desired method of displaying received data.
In accordance with the present invention, in a radio pager capable of displaying received alphanumeric character data consisting of a message signal and an address signal, a first display controller and a second display controller are provided, and each displays the same received data by a particular method.
Also, in accordance with the present invention, a data display radio pager includes an LCD for displaying received data consisting of a message signal and an address signal. A first memory stores an address number and a password assigned to the radio pager, and various kinds of set data beforehand. A second memory stores the received data meant for the radio pager and a time of receipt while the radio pager is in a stand-by state. A first display driver controls all the segment lines and all the common lines of the LCD in accordance with the received data to thereby display the received data on the LCD. A second display driver is preset beforehand to interrupt control over desired ones of the segment lines and desired one of the common lines, thereby displaying only a part of the received data on the LCD. An alert driver drives at least one of a sounder, a vibrator, and a visual indicator. A switch section is manually operable to input various kinds of request information. A controller controls the first and second display drivers and alert driver by referencing the first memory.
Further, in accordance with the present invention, a radio pager includes an LCD for displaying received data consisting of a message signal and an address signal. A first memory stores an address number and a password assigned to the radio pager, and various kinds of set data beforehand. A second memory stores the received data meant for the radio pager and a time of receipt while the radio pager is in a stand-by state. A display driver controls all the segment lines and all the common lines of the LCD in accordance with the received data. An alert driver drives at least one of a sounder, a vibrator, and a visual indicator. A switch section is manually operable to input various kinds of request information. A controller controls the display drivers and alert driver by referencing the first memory.
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Patent Abstracts of Japan, vol. 14, No. 65 (E-0884), Feb. 6, 1990.
NEC Corporation
Rao Seema S.
Sughrue Mion Zinn Macpeak & Seas, PLLC
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