Communications: electrical – Continuously variable indicating – With meter reading
Reexamination Certificate
1991-12-02
2001-07-17
Yusko, Donald J. (Department: 2604)
Communications: electrical
Continuously variable indicating
With meter reading
C455S039000, C359S199200
Reexamination Certificate
active
06262671
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a pager, and in particular, to a pager whose functions can be easily set.
DESCRIPTION OF THE PRIOR ART
A conventional pager has a read-only memory (ROM) disposed therein. The ROM is used to store therein pager functional data indicating a processing method and a notifying method of a selective calling code identifying the pager and digital signals transmitted as a message after the selective calling signal. Reference is made to U.S. Pat. No. 4,392,135 which is assigned to the same assignee as the present application.
In order to store the functional data in the ROM, according to the conventional method, a ROM writer
205
is electrically connected via a connection cable
206
to a pager
201
as shown in
FIG. 4
such that when a signal is inputted from the ROM writer
205
to the pager
201
, the functional data is stored in the ROM disposed in the pager
201
.
In this example, a battery case cover
202
disposed in a portion of the pager
201
is removed therefrom and then a connector
204
coupled to the connection cable
206
is connected to a connector
203
disposed in the cover
202
.
In the conventional pager of this kind, a ROM writer as an external equipment is necessitated to set the pager function. Since such a ROM writer is expensive, when a function of the operation of a pager is desired to be changed, the user of the pager is required to bring the pager to a paging dealer or operating company. Namely, there has been a problem that the function of the pager cannot be easily altered.
Moreover, since the ROM writer is electrically connected to the pager, it is necessary to dispose a terminal in the pager for the connection. When the terminal is mounted in an outer surface of a case of the pager, the terminal portion made of a metal is exposed to an external space. Resultantly, the operation of the pager is likely to be hindered by an external disturbance such as a static electricity. To avoid such a disturbance, some pagers are provided with countermeasure, for example, a protective label is fixed onto the terminal portion or the terminal is disposed in the pager to be covered by the battery case as shown in FIG.
4
. However, when resetting a function of the pager, the user is required to remove the label or to open the battery case, which leads to a problem of a deteriorated operation efficiency.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a pager in which functional data can be easily changed, thereby solving the problems above.
In accordance with the present invention, there is provided a pager comprising receiver means for receiving a paging signal including an address of the pager and a message to produce a received signal, compare means response to said received signal for comparing the address with a preassigned address to produce a coincidence signal when the two address are coincident with each other, annunciate means responsive to the coincidence signal for annunciating a call, means for storing therein the preassigned address and functional data of the pager associated with the processing and the annunciation, and bar code read means for reading bar code data from a function setting bar code and storing the content of the bar code data into the storing means. In accordance with the present invention, the functional data can be set to the ROM.
Furthermore, in accordance with the present invention, the pager further comprises a display unit for displaying a received message, a light receiving unit for detecting an ambient brightness to automatically turn a display illuminator on, the display illuminator being included in the display unit, and a light emitting unit as notifying means. In the pager of this kind, the light emitting unit irradiates a light onto a bar code, the light receiving unit receives a signal for a bar code reading, and the bar code reader unit reads bar code information sent from the light receiving unit.
REFERENCES:
patent: 4247908 (1981-01-01), Lockhart
patent: 4392135 (1983-07-01), Ohyagi
patent: 4503288 (1985-03-01), Kessler
patent: 4621259 (1986-11-01), Schepers
patent: 4780910 (1988-10-01), Huddleston
patent: 4825200 (1989-04-01), Evans
patent: 4916441 (1990-04-01), Gombrich
patent: 5105179 (1992-04-01), Smith
patent: 5157687 (1992-10-01), Tymes
Foley & Lardner
NEC Corporation
Yusko Donald J.
Zimmerman Brian
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