JPS61105137A - Radio selective call receiver with display function - Google Patents

Abstract

PURPOSE:To raise attention to a carrier by storing time information included in received message information and applying again ringing and display when a progressing time by a built-in block function is coincident with the stored time. CONSTITUTION:A radio signal received by an antenna 1 is amplified by a radio section 2 and then demodulated. The demodulated signal is converted into a waveform redable by a decoder 4 at a waveform shaping circuit 3. The opera tion of a receiver is executed all via a control section 6, and as the processing procedure the content TMi of a time information storage section 7 and the content TN (representing preset time) of a time setting section 15 are read respectively. The read TMi and TN are compared at a time comparison section 19, and when the difference of the both is within a present time epsilon, the message information corresponding to the time information TMi is displayed and ringing is started. Then the TMi is eased to avoid re-calling. When the said time differ ence is larger than the epsilon, the reading of other time information TMi+1 is processed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field to which the Invention Pertains] The present invention relates to a radio selective call receiver with a display function applied to a two-individual selective call radio communication system, and particularly to a receiver equipped with a clock function.

In recent years, wireless selective calling receivers have become more compact and multifunctional in response to user demands.

In particular, in terms of multi-functionality, wireless selective calling is equipped with a display function that not only notifies the call with an audible sound as in the past, but also receives a message signal following the 1-select call signal and displays the message signal on the display. Receivers have been put into practical use. On the other hand, there has been remarkable progress in single-circuit integration technology2.
Clock timers and the like can now be configured with extremely small one-chip ICs with low power consumption, and it is now easy to add the selective call reception clock function with display function.

By the way, most of the conventional radio selective calling receivers with a display function that have been put into practical use handle only numeric information as message information, and are incomplete and insufficient as message information. However, recently, messages other than numbers have been used as message information.

Devices that handle English letters, symbols, etc. have been put into practical use, and by using these, it has become possible to convey more complete information. For example, [12
Please call Mr. Y at 30:30. Phone number is 03-12
3-4567J.

r　PM　Please come to Mr. X's office by 3:00 PM.

” can be sent in advance. Time-related information is particularly important in such messages, but even if the bearer is aware of the content when receiving these message information, he or she may not be able to take action based on the message. If you have time to spare, it is quite possible that you will forget about it.

When this happens, the result is that the receipt of the message has not been completed.

[Purpose of the invention]

An object of the present invention is to store the time information included in the received message information in order to prevent the above-mentioned inconvenience in advance. To provide a radio selective calling receiver with a display function capable of calling the attention of a wearer by sounding and displaying the sound again when the values match or are within a preset time difference.

[Structure of the invention]

The present invention provides a wireless selective calling receiver with a display function that receives a message signal following its own selective calling signal, activates a calling alarm, and displays the message signal on a display, in which the received message signal is displayed. a first storage means for storing up to a plurality of messages, and if time information is included in these message signals, extracts the time information and stores the time information in pairs with the corresponding message signal; and a time setting means that keeps time by counting the reference clock signal.

time comparison means for comparing the time read from the second storage means and the time obtained from the time setting means and detecting a state in which the two coincide or within a predetermined time difference; and control means for reading out a message signal corresponding to the compared time information from the first storage means and displaying it on the display when the call alarm is activated by the detection output of the time comparison means. It is characterized by:

[Embodiments of the invention]

Next, a wireless selective calling receiver with a display function according to the present invention will be described in detail with reference to embodiments and the drawings.

FIG. 1 is a block diagram showing the configuration of two embodiments of the present invention. This picture is busy.

A radio signal received by the antenna 1 is amplified in the radio section 2 and then demodulated. This demodulated signal is converted by the waveform shaping circuit 3 into a waveform that can be read by the decoder 4. The decoder 4 compares its own calling number with the signal from the waveform shaping circuit 3, and if the two match, it notifies the control unit 6 that there has been a call. A message signal obtained subsequent to the calling number is also sent to the control unit 6. The control unit 6 decodes the message signal sent from the decoder 4. When determining the end of the message signal, it sends a signal transmission stop command to the decoder 4, and if the decoded message signal includes time information, the time information is stored in the time information storage section 7. Other parts of the message information are stored separately in the message storage section 8. These storage units 7 and 8 are RAM
(Random Access Memory).

Further, the control unit 6 simultaneously performs the above storage operation.

The display section 10 is driven via the display section driver 9.

Provides visual information of the message to the person carrying the receiver. At the same time, a ringing signal is sent to the amplifying section 11 to drive the speaker 12 to notify the user of the call.

On the other hand, the 2-clock function includes a frequency divider 14 which receives the output of the reference oscillator 13 and divides it into a standard signal that ticks 1 o'clock. and a time setting section 15 that keeps time by counting standard signals.
Consisted of. This clock function also requires time adjustment. This is performed by switching a switch section 17 controlled by an external switch 16. The time information of the time setting section 15 obtained in this way is given as visible information from the control section 6 to the display section 10 via the display section driver 9 by operating the external switch 18. The time information from the time setting section 15 is also given to the time comparison section 19 as one input. The other input of the time comparison section 19 is given the time information in the received message signal stored in the 1 time information storage section 7. The time comparison unit 19 sends a detection signal to the control unit 6 when the time information #2 is within a predetermined time difference, for example.

Upon receiving this detection signal, the control section 6 reads out the corresponding message information from the message storage section 8 and displays the message information on the display section 10 via the first display section driver 9. Simultaneous K.

The speaker 12 is driven through the amplification section 11 to generate a sound.

In this embodiment, the easiest way to extract time information from a message signal is to format it so that it is easy to understand on the sending side and then send it. An example of this is
Although it is also shown in the specification of Japanese Patent Application No. 57-92508, here it is assumed that the signal is transmitted in a signal format as shown in FIG. In the figure (,), P is a preamble signal, F is a frame synchronization signal, and N
is a selective call signal, T is a time information signal, and I is a message signal. The time information signal T is placed as required, and a plurality of message signals (2) are arranged in line according to the length of the message. (b), (e), and (d) of the figure are examples in which BCH (31, 21) are used as the selective call signal N2, time information signal T, and message signal ■, respectively. This signal consists of 21 information bits and 10 check pits, and the first bit of the information bits is used to distinguish whether it is a selective call signal N or not, and the second bit is used to distinguish whether it is a selective call signal N or not. If it is not the selective call signal N, it is determined whether it is a time information signal or a message signal.

FIG. 3 shows the memo IJJ configuration of the time information storage section 7 and message storage section 8. FIG. 3(a) shows the memory configuration of the time information storage section 7. As shown in FIG. After the 12-bit time information, information on the address where the message information corresponding to the time information is stored is added. The memory configuration of the message storage section 8 is as shown in FIG. 10(b), and a sector storage section that stores only information on sectors in which message information is actually stored, and as shown in FIG. and a sector section that actually stores message information. With such a configuration, it is possible to reduce waste of storage area even when the lengths of a plurality of received messages are extremely different.

In this embodiment, all operations of the receiver are performed via the control section 6, but only the processing steps that characterize the present invention will be described below. The processing described here is performed in the form of interrupt processing for normal reception operation related processing. For example, 2 regarding normal reception operation related processing.

This is disclosed in the specification of Japanese Patent Application No. 180383/1983 (Radio Selective Calling Receiver with Display Function). FIG. 4 shows processing 707 related to the present invention. here.

The maximum number of time information that can be stored in the time information storage section 7 is four as shown in FIG. Time information storage section 7
The contents TMi and the contents TN (representing the current time) of the time setting section 15 are read out (402, '403).
). The read TMi and IN are compared in the time comparison section 19, and when the difference between the two is within a preset time difference ε (404), message information corresponding to the time information TMi is displayed (405).

Furthermore, a sound starts (406). Then, TMi is deleted so that it will not be recalled again (407).

Moreover, if the above-mentioned time difference is larger than ε, processing for reading other time information TMiH is performed (408, 409).

Incidentally, in practice, it is sufficient to perform this interrupt processing once every 30 seconds to once per minute for two normal reception operation related processes.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the time information included in the received message information is compared with the time information of the built-in clock function, and the time information is determined to be the same or a predetermined value. 2 when the time difference is within the
In addition to displaying message information on the display unit, it is also possible to notify the wearer of the alarm by sound.

2. The reliability of the selective call receiving system is greatly improved because it can alert the person carrying the receiver and reliably make them take the action instructed by the message information.

[Brief explanation of drawings]

FIG. 1 is a blank diagram showing the configuration of an embodiment according to the present invention;
2 is a format showing an example of a signal format applied to the embodiment of FIG. 1, and FIG. 3 is an example of the memory configuration of the time information storage unit and message information storage unit in the embodiment of FIG. 1. FIG. 4 is a flowchart showing the operating procedure of basic processing according to the present invention. In the figure, 1 is an antenna, 2 is a radio section, 3 is a waveform shaping circuit, 4 is a decoder section, 5 is a calling number storage section, 6 is a control section, 7 is a time information storage section, 8 is a message storage section, and 9 is a message storage section. 11 is an amplification section, 12 is a speaker, 13 is a reference oscillator, 14 is a frequency dividing circuit, and 15 is a time setting section. 16.18 is an external switch, 17 is a changeover switch. 19 is a time comparison section. cl Ω OuFigure 4

Claims (1)

[Claims] 1. A wireless selective calling receiver with a display function that receives a message signal following its own selective calling signal, activates a calling alarm, and displays the message signal on a display, in which a plurality of received message signals are displayed. If time information is included in the message signal, a second storage means extracts the time information and stores the time information in pair with the corresponding message signal. A storage means, a time setting means for keeping time by counting a reference clock signal, and comparing the time read from the second storage means and the time obtained from the time setting means, and determining whether the two match or , time comparison means for detecting a state within a predetermined time difference;
and control means for activating a call alarm based on the detection output of the time comparison means, and for reading a message signal corresponding to the compared time information from the first storage means and displaying it on the display device. A wireless selective calling receiver with a display function.