Pager with reception error notification

Telecommunications – Transmitter and receiver at separate stations

Reexamination Certificate

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Details

C455S039000, C340S870030, C340S870030

Reexamination Certificate

active

06208838

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to a pager that can inform the user of the fact that information whose reception time is known cannot be received.
Pager use methods are diversified and serve for a business company to distribute various pieces of information to users in addition to serving for one person to page another.
A pager receives a radio signal, takes out a message from the signal, and informs the user of the message. Therefore, the pager cannot receive the signal precisely and causes a reception error at a place where radio wave condition is poor. At the time, the paging operation is not performed, receive data is not displayed, or the part that cannot be received normally is blinked, etc., for display. Some pagers are provided with a function of displaying an error message and the communication number with the transmitter (center) to obtain the correct message, as described in the Unexamined Japanese Patent Application Publication No. Hei 6-204937.
FIG. 8
shows the configuration of a conventional pager. In the figure, numeral
1
is an antenna for receiving a radio signal. A received signal is sent to a radio section
2
, which then decodes the signal into a message and sends the message to a control section
3
. If the received message is addressed to the home, the control section
3
sounds a bell, for example, in a notification section
4
to inform the user of paging and displays a message on a display section
5
.
If reception ends in failure, the control section
3
does not perform the message reception operation or blink-displays erroneously received data, displays the communication number with the center, etc., on the display section
5
.
However, for example, if the user is under the ground and the pager can receive no signals, the user cannot even know reception and neither a reception error nor the communication number with the center appears. For example, if the message to be received is pay information service, it is a problem that display is not produced if paging is lost. The user, who pays for information, wants to receive messages reliably.
SUMMARY OF THE INVENTION
It is therefore an object of the invention to provide an excellent pager which checks whether or not the pager receives a message whose reception time is known at the reception time, if the pager does not receive the message at the reception time, informs the user of the fact, and can also previously manage transmitter information for using a DTMF (dual tone multifrequency) signal to easily send a request for resending the message that cannot be received.
To the end, according to the invention of aspect 1, there is provided a pager comprising storage means for storing the reception time and the reception message type, characterized by reception monitor means for checking whether or not a message whose reception time is previously known arrives at the pager at the reception time and notification means for informing the user of the pager of lost paging if the message does not arrive. When the pager cannot receive any message whose reception time is previously known, it can inform the user of the fact.
In the invention of aspect 2, the pager of aspect 1 further includes setting change means using a message received at the pager for arbitrarily changing setting of the reception time and message type stored in the storage means. When the transmitting party wants to change the message transmission time, it can transmit change time data for changing setting of the reception time of the receiving party.
In the invention of aspect 3, the pager of aspect 1 further includes means for sending a DTMF signal and resending control means for controlling the DTMF signal sending means so as to send a message resending request signal if the pager cannot receive a message normally. In addition to the function of aspect 1, when message reception ends in failure, the pager enables the user to use a DTMF signal to easily make a request for resending the message.
In the invention of aspect 4, the pager of aspect 2 further includes means for sending a DTMF signal and resending control means for controlling the DTMF signal sending means so as to send a message resending request signal if the pager cannot receive a message normally. In addition to the function of aspect 2, when message reception ends in failure, the pager enables the user to use a DTMF signal to easily make a request for resending the message. When the transmitting party wants to change the message transmission time, it can transmit change time data for changing setting of the reception time in the receiving party.


REFERENCES:
patent: 5638450 (1997-06-01), Robson
patent: 5726639 (1998-03-01), Romero et al.
patent: 5831544 (1998-11-01), Park
patent: 5847657 (1998-12-01), Tsuchiyama
patent: 5924017 (1999-07-01), Pinter et al.
patent: 5977881 (1999-11-01), Kido
patent: 6112096 (2000-08-01), Hasegawa

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