KR100272717B1 - Radio receiver that changes the manner of call notification based of the content of received messages - Google Patents

Abstract

A selective call receiver is disclosed that detects whether a code included in a received message carrying a unique selective call number of a receiver is equal to a stored predetermined code. If it is determined that the detection result is the same, the call notification circuit is operated to change the call notification method based on the content of the received message.

Description

Wireless receiver that changes call notification method based on contents of received message

The present invention relates to a wireless receiver and, more particularly, to a selective call receiver that changes the manner of call notification based on the content of a received message.

A selective call receiver (hereinafter referred to as a "receiver") receives a radio signal transmitted from a base station and detects a predetermined code number accompanying the selective call number. The receiver converts this predetermined code number into a predetermined message to display the predetermined message if the received selection call number equals the unique selection number of the receiver.

An example of a receiver for converting a predetermined code number into a predetermined message is disclosed in Japanese Laid-Open Patent Publication No. 3-232327 (1991 October 10).

The selective call receiver disclosed in the above publication fetches a predetermined code number that is two digits from the received radio signal and compares it with the corresponding two digits stored in the receiver. If the two digits received match the two digits stored, the receiver converts the two digits that match into a predetermined message and displays the message.

Such a receiver is called a receiver with a "predetermined message service" and this kind of receiver has been provided recently, but the bearer of the receiver has to look at the display to recognize the message. Therefore, such confirmation is troublesome for the receiver holder.

Japanese Patent Laid-Open No. 63-252029 (October 29, 1983) discloses a receiver for changing the sound of a call notification in accordance with a series of call numbers stored in the receiver.

Therefore, the owner of this receiver can know who is calling him without looking at the display. However, the receiver holder cannot recognize the message unless he sees the display. Of course, if the receiver has a plurality of unique selective call numbers assigned to each message, and call information is assigned to each selective call number, it is possible to notify the receiver holder of the message without signing such a display. However, services from providers managing message transmissions may result in a reduction in the number of telephone lines, so services providing multiple call numbers have not been widely spread in recent years.

Moreover, because the type of sound informing the incoming call is assigned only according to the unique selective call number, for a receiver with only one selective call number the receiver holder must look at the display to recognize the received message.

It is an object of the present invention to provide a wireless receiver that changes the manner of call notification based on the content of a received message.

It is still another object of the present invention to provide a wireless receiver that allows a user to select a method of call notification.

It is still another object of the present invention to provide a selective call receiver for changing the manner of call notification according to a plurality of predetermined messages.

In order to achieve the above-mentioned object, a wireless receiver according to the present invention includes a receiving circuit for receiving a call signal for calling a user of the receiver, a storage circuit for storing at least one predetermined code, and carrying the call signal. A extraction circuit for detecting a sign included in the message. The wireless receiver further includes a determining circuit that determines whether the received code matches the stored predetermined code, and a notification circuit that executes a call notification according to the matching code.

Using the above-mentioned configuration, in the present invention, the wireless receiver changes the manner of call notification according to the code included in the received message, so that the receiver holder recognizes the message without looking at the display.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description taken in conjunction with the accompanying drawings.

1 is a schematic block diagram of a selective call receiver according to an embodiment of the present invention.

FIG. 2 (a) is a diagram showing the format of a radio signal received by the receiver shown in FIG. 1, and FIG. 2 (b) shows the configuration of each codeword shown in FIG. drawing.

3 (a) and 3 (b) are diagrams illustrating an intermittent reception operation performed by the receiver shown in FIG. 1, and FIG. 3 (a) is a non-receipt in which a unique selective call number of the receiver is not received. FIG. 3 (b) shows a state in which a uniquely selected call number of a receiver has been received.

FIG. 4 is a diagram showing an example of a database stored in a table shown in FIG. 1, having a predetermined code number, a predetermined message, and a call notification.

5 is a diagram showing a relationship between a received message, a displayed message and call notification contents.

6 is a circuit diagram of an example of the melody circuit and loudspeaker shown in FIG.

FIG. 7 is a diagram showing an example of a ringing tone generated by the loudspeaker shown in FIG.

FIG. 8 is a flowchart showing the order executed by the receiver shown in FIG.

9 (a) to 9 (f) are diagrams showing an example of a method of allocating a predetermined code number, a predetermined message, and a call notification content in a receiver.

* Explanation of symbols for main parts of the drawings

2: wireless circuit 3: wave circuit

9: melody circuit 10: vibrator driver

In FIG. 1, the antenna 1 receives a radio signal from a base station (not shown) and outputs the received signal to the radio circuit 2. This radio circuit 2 is controlled to be turned on or off by a control signal from the decoder 7 for battery protection. The radio circuit 2 amplifies the received signal supplied from the antenna 1, demodulates this signal and supplies this demodulated signal to a wave-shaper circuit 3. The waveform shaping circuit 3 modulates the demodulated signal into a digital signal and supplies the digital signal to the decoder 7. The address memory 4 stores the unique select call number of the receiver and outputs it to the decoder 7. The table 5 stores a predetermined code number, a predetermined message and call notification data, each of which is associated with data corresponding to the predetermined code number. The decoder 7 detects the preamble signal and the frame synchronization signal from the digital signal by decoding to achieve synchronization between the base station and the receiver, and outputs a control signal to the radio circuit 2 based on this achieved synchronization. The decoder 7 detects the selection call number from the digital signal by decoding, and determines whether the detected selection call number is the same as the unique selection call number of the receiver supplied from the address memory 4. In addition, if the selection call number matches, the decoder 7 detects the predetermined code number accompanying the selection call number by decoding. After detecting the predetermined code number, the decoder 7 compares the received predetermined code number with the stored predetermined code number, and if a part of the received code matches that of the stored code, the decoder 7 stores the call information content stored in the table 5. Based on this, the coincidence signal is output to the loudspeaker driver 8 and / or the melody circuit 9 and / or the vibrator driver 10 and / or the LED driver 11. In addition, the decoder 7 outputs a predetermined message assigned to the stored code number corresponding to the received predetermined code number to the display driver 12.

The display driver 12 drives the display 13 and therefore the display 13 displays a predetermined message output from the decoder 7. The loudspeaker driver 8, the melody circuit 9, the vibrator driver 10, and the LED driver 11 are controlled by the coincidence signal from the decoder 7. The call notification circuit 120 includes a loudspeaker 121, a vibrator 122, and an LED 123, which are driven by respective drivers and melody circuits 8, 9, 10, 11. Therefore, circuit 120 implements call notification in accordance with the received message.

The switch 6 is operated by the receiver holder to select the call notification method.

In FIG. 2 (a), the radio signal transmitted from the base station is composed of a 576-bit preamble signal and a 32-bit frame synchronization signal following the preamble signal. The preamble signal and the synchronization signal are used to achieve synchronization between the base station and the receiver.

The receiver belongs to one of several groups, and the unique selective call number of the receiver is transmitted only at the time allocated to the group to which this receiver belongs. After receiving the preamble signal and the synchronization signal for turning on the power and synchronizing, the receiver can perform reception only at the time allocated to the group to which the receiver belongs. An intermittent reception operation in which reception is performed only at a time allocated to a group to which its own receiver belongs is described below with reference to FIG.

Group 1 is transmitted to the receiver after the transmission of the frame sync signal. In FIG. 2 (a), the frame sync signal and eight groups form one batch, and one group includes two code words.

After one batch has been sent, another batch is sent to the receiver.

Each codeword is constructed as shown in FIG. 2 (b). That is, the codeword consists of 32 bits in total, and includes a selection call number / message identification bit (hereinafter, simply referred to as an “identification bit”), an information bit, a check bit, and a parity bit in the order listed.

The identification bit is one bit and is used to determine whether the codeword represents the selective call number or the message, wherein the codeword represents the selective call number if the identification bit is 0, whereas the identification bit represents the message. .

The information portion is composed of 20 bits, and the selection call number is recorded in the information portion when the identification bit is 0, while the message is recorded in the information portion when the identification bit is 1.

The check bit consists of 10 bits and the parity bit consists of 1 bit. That is, the transmission error is corrected by using the (31, 20) + 1 BCH signals.

In FIG. 3, FIG. 3 (a) shows the case where the uniquely selected call number of the receiver is not received, while FIG. 3 (b) shows the case where the uniquely selected call number of the receiver is received.

When the power of the receiver is turned on, the reception operation continues until the preamble signal and the synchronization signal are received, and synchronization with the base station is performed.

As described above, the uniquely selected call number of the receiver is stored in advance in the address memory 4 of the receiver, and the group to which the receiver belongs is also stored in the same address memory 4. 3 (a) and 3 (b) show a case in which the receiver belongs to group 2, wherein the power supply of the radio circuit 2, after receiving a preamble signal and a synchronization signal and synchronizing with the base station, In order to perform the intermittent reception operation, the receiver is turned off until a selected call number is received by the receiver belonging to the group 2. By doing this, the power consumption of the receiver can be reduced.

When the unique selective call number of the receiver is not received as shown in FIG. 3 (a), the power supply of the radio circuit 2 is turned on only when the selective calling number associated with the receiver belonging to group 2 is transmitted.

On the other hand, FIG. 3 (b) shows a reception state in which the uniquely selected call number of the receiver is received. That is, if the identification bit is 0 and the unique selective call number of the receiver matches the information part in the codeword of group 2, the message is received when the selective call number about the receiver belonging to another group following the group 2 is transmitted. Since there is a possibility to be transmitted to Rx, the receiving operation continues until a codeword with identification bit 0 is transmitted next.

In FIG. 3 (a), the symbol ID represents a codeword having an identification bit of 0, that is, a selection call number, and the symbol MES represents a codeword having an identification bit of 1, that is, a message. In the case of FIG. 3 (b), since the uniquely selected call number of the receiver matches the first codeword of group 2 and the identification bit is then zeroed for the first time with the first codeword of group 4, The receiving operation continues from the first codeword to the first codeword of group 4.

The message planned for the receiver is set from the second codeword of group 2 to the second codeword of group 3, and the receiver detects a predetermined code number from this message.

In FIG. 4, a predetermined code number, a predetermined message, and call notification data are stored in the table 5 of the receiver. The predetermined code number consists of two digits. The predetermined message is assigned to each of the predetermined code numbers. For example, if the receiver receives the predetermined code number "01", the receiver converts the code "01" into the predetermined message "I think it will be late", and in the same way, the predetermined code number "02" converts the predetermined message "first". I'll start. ” In addition, a predetermined code number is assigned to each call notification code. For example, if the receiver receives the predetermined code number "01", the loudspeaker 121 of the receiver generates ringing tone 1, and in the same manner, when the predetermined code number "32" is received, the loudspeaker 121 is Generates melody 1

In FIG. 5, case 1 is a case where the receiver receives the message “[[01 [[33012-345-6789”). At this time, the receiver detects the predetermined code number by searching for the identification code "[["). The identification code "[[" indicates that the next two digits are a predetermined code number. Therefore, the receiver detects the predetermined code number " 01 " and converts it to the predetermined message " I'll be late. &Quot; In the same way, the receiver detects the predetermined code number "33" carrying the identification code "[[") and converts it into the predetermined message "Please contact me by fax soon." The message " 012-345-6789 " following the predetermined code number " 33 " is displayed in that state without being converted to the predetermined message because the bits of the message " 012-345-6789 " appear after the identification code. As mentioned above, the displayed message will be “I'll be late / please call FAX 012-345-6789”. At that time, the loudspeaker 121 first generates ringing tone 1 because the receiver executes the call notification assigned to the predetermined code number detected by the decoder 7.

In FIG. 6, the melody circuit 9 is composed of an integrated circuit "SM1124ABS-ET". The melody circuit 9 has eight terminals, namely CLK, SI, SC, ST, VSS, VDD, MTO and TEST terminals, and the decoder 7 has seven output terminals. Power 1.5 to 3.6V is supplied to the VDD terminal and terminal VSS is grounded. The terminal MTO is connected to the terminal of the OR circuit 81 of the loudspeaker driver 8.

The loudspeaker driver 8 is composed of an OR circuit 81, a resistor 82, and a transistor 83. The other terminal of the OR circuit 81 is connected to the decoder 7. The OR circuit 81 selects a ringing tone from the decoder 7 or a melody from the melody circuit 9 and outputs one of them as an OR signal to the base terminal of the transistor 81 via a resistor 82. . Transistor 83 is biased by the voltage across resistor 82 and current amplifies the OR signal. The amplified OR signal is supplied to the loudspeaker 121 to drive the loudspeaker 121.

In Fig. 7, control is executed so that the ring tones 1, 2 and 3 are output only while the signal level is 1, and the output of these ring tones is stopped while the signal level is 0. This makes it possible to change the type of ringing tone.

In FIG. 8, when the power of the receiver is turned on (step S101), the receiver receives and detects a preamble signal and a synchronization signal for synchronizing with the base station (S102). At that time, the intermittent reception operation shown in Fig. 3A is started (S103).

If the identification bit, which is the first bit of the codeword, is zero when the power of the receiver is turned on in step S104, processing continues to the next step S105, where the selection call number in the radio signal is the unique selection call number of the receiver. If it matches with, the message associated with the matching selection call number is detected (S106). If the identification bit is not 0 or if the selection call number in the radio signal does not match the unique selection call number of the receiver, the flow returns to step S103 and the intermittent reception operation continues.

After the message is detected according to each code word, the decoder 7 determines whether a predetermined code number is included in the detected message (S107). If the predetermined code number is not included, the process proceeds to step S108. On the other hand, when predetermined code numbers are included, these code numbers are converted into predetermined messages (S109). Thereafter, call notification data assigned to the predetermined code number is also detected (S110).

If the result of the determination is "NO" in step S107, the receiver determines that the detected message does not need to be converted into a predetermined message, displays the message unchanged, and advances to the receiver of the receiver in advance. The call notification is executed in the manner selected by the user (S108).

The receiver then displays a message on the display 13, retrieved in step S109 or recognized in step S108 (S111), the content retrieved in step S110 and / or the content determined in step S108. Call notification.

In FIG. 9 (a), the switch 6 operated by the user includes the memory switch 61, the shift switch 62, the review switch 63, and the preview switch 64 (these switches are the ninth). (b) to (f) are not shown for the sake of simplicity). In this figure, if the receiver is in the "predetermined message and call notification selection mode" (hereinafter referred to as "selection mode") by a predetermined operation of the switch 6, the display 13 displays "predetermined message input". Is displayed. The underlined mark 131 moves in the lower positions of “YES” and “NO” by pressing the switches 63 and 64. If the receiver holder wishes to set or change the predetermined message and / or call notification method, the switch 62 is operated when the underlined mark 131 is under the position of "YES".

9 (b) shows the display after the operation of the switch 72. FIG. The underlined mark 131 is placed at the position "01" showing a plurality of predetermined code numbers. The holder operates the switches 63 and 64 to change the number of the predetermined code number, and presses the switch 62 to select the predetermined code number. As shown in FIG. 9 (c), after the operation of the switch 62, the display contents of the display are changed, and the underlined display 131 is moved to a position under the call notification type. The call notification type is changed by the operation of the switches 63 and 64, and pressing the switch 62 selects the desired call notification type.

As shown in FIG. 9 (d), the holder selects a call notification type and then determines a predetermined message. The holder moves the underline mark 131 and presses the switches 63 and 64 to input a predetermined message. After the message is entered, the switch 64 is operated and the display proceeds to the next step shown in FIG. 9 (e). In Fig. 9 (e), the holder confirms that the selected predetermined code number, the call notification type and the predetermined message have been entered correctly, and if they should be registered, the underlined mark 131 is placed at the position under “YES”. Press the switch (61). Finally, the display 13 displays the registered code, notification type and message as shown in FIG. 9 (f).

In the present embodiment, although a predetermined message is displayed on the display 13, the call notification assigned to the received predetermined code number can be executed without displaying the message. In order to achieve this, only the call notification type is stored in the table 5 when the holder sets a predetermined message without registering a predetermined message to be displayed, and if a predetermined code number assigned to the stored predetermined message is received. When included in the control, control is made to prevent anything from being displayed on the display 13, thus allowing only call notification without displaying anything on the display 13.

Moreover, in the present embodiment, the signal format of the radio signal received by the receiver is described like the format of the POCSAG signal, but the present invention is another signal format such as NTT system signal and ERMES signal or a signal of a kind capable of transmitting a predetermined code number. Can be applied to

Moreover, the present invention may be applied to a signal in which transmission of a predetermined code number is not possible. To accomplish this, the receiver stores a predetermined message, for example the name of the person who may call the holder, and when detecting the stored name in the received radio signal, the call notification circuitry carries out the call notification according to the stored name. do.

Moreover, in the present embodiment, the present invention has been described as a selective call receiver, but the present invention is not limited to use only in a selective call receiver, but may also be applied to a general purpose wireless receiver such as, for example, a personal wireless telephone or a mobile telephone.

As mentioned above, according to the present invention, the receiver holder can specify the manner of call notification based on the predetermined message, and can easily recognize the predetermined message without looking at the display.

It will also be apparent that various modifications and variations of the present invention are possible, as will be appreciated from the foregoing description. It is, therefore, to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.

The wireless receiver of the present invention can change the method of call notification based on the content of the received message, allow the user to select the method of call notification, and also change the method of call notification according to a plurality of predetermined messages. Can be.

Claims (10)

A reception circuit for receiving a call signal for calling a user of a receiver, a storage circuit for storing at least one predetermined code, a detection circuit for detecting a code included in a message accompanying the call signal, and the reception And a decision circuit for determining whether the corrected code matches the stored predetermined code, and a notification circuit for executing call notification according to the matching code. 2. The apparatus of claim 1, wherein the notification circuit comprises a loudspeaker for generating sound, a vibration generating device, and an LED for providing intermittent illumination, wherein the notification circuit is configured such that the received code is equal to the predetermined code. A wireless receiver that generates at least one of sound, vibration and illumination in the same case. 3. The radio receiver of claim 2 wherein the loudspeaker generates one of a ringing tone or a melody. The radio receiver according to claim 1, further comprising a setting circuit operated by a user of the receiver and configured to set the predetermined code and call notification data assigned to the predetermined code. A receiving circuit for receiving a selection call number, an address memory for storing a unique selection call number, a message memory for storing at least one predetermined code, and whether the received selection call number is equal to the stored unique selection call number; A judging circuit for judging and for detecting a code included in a message accompanying the selection call number when the first determination circuit determines that the received selection call number and the stored unique selection call number are the same. And a second judging circuit for judging whether the received code is equal to the stored predetermined code, and a notification circuit for executing call notification when the received code is the same as the stored predetermined code. . 6. The communication circuit according to claim 5, wherein the notification circuit includes a loudspeaker for generating sound, a vibration generating device, and an LED for providing intermittent illumination, wherein the notification circuit is provided when the received code is equal to the predetermined code. Selective call receiver for generating at least one of sound and vibration and illumination. 7. The selective call receiver of claim 6, wherein the loudspeaker generates one of ringing tone or melody. 7. The selective call receiver of claim 6, further comprising setting circuitry manipulated by a holder of the selective call receiver and for setting up the stored code and a call notification assigned to the stored code. 7. The selective call receiver of claim 6, wherein the message memory stores a predetermined message assigned to the stored code, and wherein the selective call receiver further comprises a display for displaying a message assigned to the detected code. 9. The selective call receiver of claim 8, wherein the setting circuit further sets the predetermined message assigned to the stored code.

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