KR0153350B1 - Radio selective calling receiver - Google Patents

Abstract

Only information selected from a message transmitted to a large number of people, in particular an unspecified number of people on the receiving side, by setting the receiving frequency for each information type or call number at the receiving side and determining the receiving frequency from the transmitted message, By controlling unnecessary operations performed by the receiver, power consumption of the receiver is reduced by eliminating unnecessary operations performed by the receiving circuit, and the use capacity of the message memory is reduced in the receiver by removing unnecessary information stored in the memory. The radio selective call receiver has a memory for setting a reception period for each information, and the memory has a reception reception mode and a reception inhibition mode switched for each information type by determining the information type from the reception message following the call number. A timer circuit for setting the period, counting the reception period, and a CUP for changing the battery saving control method for controlling the power supply to the reception circuit on / off are also provided. The reception period is set by the switching operation of the receiver, and is determined according to the signal from the external computer and the content of the reception message. By this operation, only information selected from the information on itself can be received.

Description

Wireless selector call receiver

1 is a block diagram showing the configuration of a conventional radio selective call receiver.

2 is a flowchart showing a battery saving control operation of a conventional radio selective call receiver.

3 is a timing chart showing a message receiving operation and a battery saving control operation of a conventional radio call receiver.

4 is a block diagram showing a configuration of a radio selective call receiver according to a first embodiment of the present invention.

5 is a block diagram showing a configuration of a radio selective call receiver according to a second embodiment of the present invention.

6 is a block diagram showing a configuration of a radio selective call receiver according to a third embodiment of the present invention.

7 is a block diagram showing the configuration of a radio selective call receiver according to a fourth embodiment of the present invention.

8 is a flowchart showing a reception period setting operation of the first embodiment of the present invention.

9 is a diagram showing a message format for specifying a transmission period of each information according to the second and fourth embodiments of the present invention.

10 is a flowchart showing an outline of the reception mode switching operation of the first to fourth embodiments of the present invention.

FIG. 11 is a flowchart showing an outline of operation in each reception mode of the first to fourth embodiments of the present invention. FIG.

Fig. 12 is a diagram showing the correspondence between the addresses of the POCSAG signal format of the present invention and the functional addresses of the first and third embodiments.

Fig. 13 is a diagram showing the correspondence between the head character of each corresponding message and each information number in the second and fourth embodiments of the present invention.

14 is a timing chart showing a reception mode switching operation of the embodiment of the present invention.

FIG. 15 is another timing chart showing a reception mode switching operation of the embodiment of the present invention. FIG.

FIG. 16 is another timing chart showing a reception mode switching operation of the embodiment of the present invention.

FIG. 17 is a timing chart showing a message receiving operation and a battery saving control operation of the first and third embodiments of the present invention. FIG.

18 is another timing chart showing a message receiving operation and a battery saving control operation of the second and fourth embodiments of the present invention.

* Explanation of symbols for main parts of the drawings

1: receiving antenna 2: receiving circuit

3: decoder 4: EEPROM

5: Battery saving (BS) control circuit 6: CPU

7: RAM 8: RAM

9: RAM 10: timer circuit

11 switch operation unit 12 detection circuit

13 interface control 14 interface connector

15 computer 16 display control unit

17: LCD

[Field of Invention]

The present invention relates to a radio selective call receiver, and more particularly to a radio selective call receiver having a function of limiting a message reception frequency.

[Description of Related Technology]

1 shows the configuration of a conventional radio selective call receiver. The radio selective call receiver includes a receiving antenna 1 for receiving a broadcast wave modulated by a call number and a message, a receiving circuit 2 for demodulating a signal received by the receiving antenna 1, and a received signal home. A decoder 3 for determining whether the receiver is for a home receiver, an EEPROM 4 for storing the call number of the home receiver, and a battery saving control circuit for controlling the power supply of the receiver circuit 2 (hereinafter referred to as BS control circuit). 5), a reception message memory 7 for storing received messages, a switch operating unit 11, a detection circuit 12 for detecting the operation of the switch operating unit 11, and a message. LCD 17, a display control unit 16 for controlling the display operation of the LCD 17, and a CPU 6.

As shown in Figs. 2 and 3, after the power switch of the radio select call receiver is turned on, the BS control circuit 5 supplies power until the bit synchronization preamble signal is received. Control to supply intermittently (BS operation 1). The receiving circuit 2 performs an intermittent operation (step F-2), and when the preamble signal is detected by the decoder 3 (step F-3), the decoder 3 supplies power to the receiving circuit 2. A signal is output to the BS control circuit 5 to hold the supply intermittently and held therein (step F-4).

The receiving circuit 2 continues the receiving operation and waits for the frame synchronizing signal. When the frame synchronizing signal is detected (step F-5), the BS control circuit 5 causes the receiving circuit to operate at a timing corresponding to the frame number corresponding to the call number of the receiver, waiting for the call number of the home receiver and receiving it. The control operation is again performed so that the power supply to the circuit 2 is intermittently supplied (step F-6).

When the call number of the home receiver is detected by the decoder 3 (step F-7), the power supply is intermittently supplied to the receiving circuit 2 (step F-8). Next, the message of the home receiver received after the call number is decoded (step F-9) and stored in the reception message memory 7. After all the messages have been received (step F-10), if the received signal continues to be received (step F-11), the call number is waited for (step F-7). In the absence of a received signal, the flow returns to step (step F-3) for waiting for the preamble signal. Next, an intermittent power supply operation (BS operation 1) is performed (step F-4).

In such a conventional radio selective call receiver, when information corresponding to a call number designated to the receiver is transmitted on a radio signal, a message added to the call number is received. For this reason, all messages transmitted from the transmitting side must be received including information required by the user on the receiving side.

This type of conventional radio call receiver is a means for sending a message to each user at the receiving end. Therefore, all messages sent to the receiver are received at their selected call number unique to that receiver. Among the recently developed radio receive call receivers, there is a radio select call receiver in which one radio select call receiver can enjoy a so-called simulcast service having a plurality of select call numbers, and one select call number is assigned to the receiver. Are unique and different numbers are common to some other receiver, and one receiver receives either a unique call number or a call and message unique to itself under a call, or a message common to another receiver under a common call number can do.

The simulcast service may send the same message to multiple radio selective call receivers. In other words, simultaneous transmission is executed. Some messages received under the simulcast service may be unnecessary to the receiving user, but the receiving user cannot select the receiving message.

As described above, the user at the receiving end cannot select the received message with the conventional radio select call receiver. Therefore, as the number of transmitted messages increases, the receiver circuit of the receiver performs unnecessary operations more frequently, resulting in increased power consumption of the receiver.

[Overview of invention]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and an object thereof is that the user of the receiving shaft can be used according to the user so as to realize low power consumption and reduce unnecessary consumption in the storage area of the message memory without receiving unnecessary messages. It is to provide a radio select call receiver that can select an incoming message.

The wireless selective call receiver of the present invention comprises a memory for setting a second reception period for each call number, a timer circuit for counting reception periods, and a battery saving control for controlling the power supply of the reception circuit on / off in a second period. A circuit is provided. The control means for repeatedly controlling the receiving circuit at a set receiving period repeatedly performs battery saving control for intermittently supplying power to the receiving circuit when reception is allowed, and continues to receive a message when the call number of the home receiver is received. When the reception is prohibited, control is performed to completely stop the power supply to the reception circuit. In the receiver, when the receiver has a plurality of call numbers, the control means for repeatedly controlling the receiving circuit at a set receiving cycle is a battery saving control for intermittently supplying power to the receiving circuit when reception of at least one call number is permitted. If the reception of the received call number is allowed, the message is continuously performed. If the reception is prohibited, the battery saving control of the reception circuit is performed without receiving any subsequent message. As another configuration means, the receiver includes a memory for setting a second reception period for each information, a timer circuit for counting the reception period, and a battery saving control circuit for controlling on / off power supply to the reception circuit. Doing.

In the receiver, the control means for repeatedly controlling the receiving circuit at the set second receiving period repeatedly performs battery saving control for intermittently supplying power to the receiving circuit when the reception of at least one type of information is permitted, and the receiving call number If the type of information determined from the following message indicates the reception permission, message reception is continued. If the type of information indicates the reception prohibition, battery saving control of the reception circuit is performed.

In the receiver, the control means for controlling the reception circuit by changing the reception period in accordance with the intention of the user includes means for performing reception permission processing at predetermined intervals, means for performing reception permission processing at a desired time, and a predetermined time period. Means for maintaining a reception permit status. The first reception period means for setting the reception period sets the reception period by the switching operation of the receiver, and the second reception period means sets the reception period in accordance with a signal from a computer connected to the receiver. The third reception period means has a function of decoding the reception period specifying data specified in the reception message and setting the data in the reception period setting memory.

4 is a block diagram showing the configuration of a radio selective call receiver according to a first embodiment of the present invention. Reference numeral 1 is a receiving antenna for receiving a carrier number modulated by the call number and the message, 2 is a receiving circuit for demodulating the signal received by the receiving antenna 1, and 3 is whether the received signal is for a home receiver. Is a decoder which decodes the signal and decodes the signal, 4 is an EEPROM which stores the call number of the home receiver, 5 is a batting saving (BS) control circuit which controls the power supply to the receiving circuit 2, and 7 is a receiving message. Is a reception message memory for storing a number, 8 is a RAM that can specify a reception period for each call number, 10 is a timer circuit that performs a time counting operation to determine the switching between the reception permission mode and the reception inhibition mode. A switch operation unit for setting a reception period, 12 is a detection circuit for detecting the operation of the switch operation unit 11, 17 is LCD for displaying a message, 16 is for controlling the display operation of the LCD (17) The display control part 6 is a CPU.

5 is a block diagram showing a configuration of a radio selective call receiver according to a second embodiment of the present invention. In the figure, a memory 8 for setting a reception period for each call number to have a function of changing / setting the reception period designation data by decoding the transmission period designation data for each information included in the reception message in the radio selective call receiver. Instead, a RAM 9 capable of designating a reception period for each piece of information is provided. The configuration of the other circuit is the same as that of the embodiment shown in FIG. 4, and the description thereof will be omitted.

6 is a block diagram showing the configuration of a radio selective call receiver according to a third embodiment of the present invention. In Fig. 6, reference numeral 13 denotes an interface control unit which performs connection control in connection with the external computer 15, and 14 denotes an interface connector for connection with the external computer 15.

By this arrangement, the radio select call receiver sets the reception period according to the signal from the external computer 15 instead of the switching operation of the receiver. The other circuit configuration is the same as that shown in FIG.

7 is a block diagram showing the configuration of a radio call receiver according to a fourth embodiment of the present invention. This radio call receiver sets the reception period of each information instead of each call number.

The circuit operation of each of the above embodiments will be described. The basic circuit operation is the same as that of the conventional radio selective call receiver described with reference to FIGS. 2 and 3, and a description thereof will be omitted. Referring to FIG. Let's explain.

After the power switch of the receiver is turned on, the switch SW1 provided in the switch operating section 11 is pressed for at least 1 second to set the reception period setting mode (step P-1). Thereafter, the number N at which the switch SW2 provided in the switch operating section 11 is pressed is counted (step P-2).

If the switch SW1 is pressed for less than one second, the call number is selected according to the number of times N to set the reception period (step P-3).

This call number is for example selected from eight call numbers.

When the switch SW1 is pressed for 1 second or longer, the flow of steps returns to the step before the reception period setting mode setting step (step P-4).

The number N of pushes after step P-3 is cleared to zero (step P-5), and the number of times the switch SW1 is pressed is counted (step P-6).

When the switch SW1 is pressed for 1 second or less, the reception permission mode start condition is selected according to the number of presses N (step P-7). This reception allowance mode start condition is selected from, for example, five conditions, that is, from 10 minutes interval, 1 hour interval, 1 day interval, 0 minutes every hour, immediately (only once). When the switch is pressed for 1 second or longer, the flow of steps returns to the step before the step of setting the reception period setting mode.

After step P-7, the number of times of pressing N is cleared to zero (step P-9), and the number of times N when switch SW2 is pressed is counted (step P-10). When the switch SW1 is pressed for 1 second or less, the reception prohibition mode start condition is selected in accordance with the number of presses N (step P-11). The reception prohibition mode start condition is selected from three conditions: 10 minutes after receiving the information, 10 minutes after receiving the allow mode, and 1 hour after the start of the allow mode.

When the switch SW1 is pressed for 1 second or longer, the flow of steps returns to the step before the step of selecting the call number for setting the reception period (step P-12).

9 shows a message format specifying a transmission period for information of the second and fourth embodiments of the present invention.

When transmission period specifying data as shown in FIG. 9 is transmitted at the transmitting side, the data is decoded to set the reception period of the receiver.

In Fig. 9, item a is a part designating an information number, which part is used to designate eight numbers, i.e., 1 to 8. Subsequent item b is a part that specifies the presence / absence of reception period specification data. If the item b is 1, there is a reception period specifying data. If item b is 0, there is no reception period specifying data.

Item c is set only when item b is 1, and item c is a part for setting the reception permit mode start condition.

That is, item c is used to select one of the following conditions, that is, every 10 minutes, one hour, or a specified time, as a reception permission mode start condition.

The item d is a position for specifying a specified time when the item c is 6, that is, the reception permission mode start condition is the designated time.

Item d is set only when item c is 6.

Item e is set only when item d is one. Item e is a position for setting a reception inhibiting mode start condition. That is, item e is used to select one of the following conditions. That is, after receiving the information, it is used to select one of 10 minutes after the start of the allow mode and 1 hour after the start of the allow mode as the start inhibit mode start condition.

10 is a flowchart showing the outline of the reception mode switching operation of the first to fourth embodiments of the present invention.

After the power switch of the receiver is turned on, S = 0 is set (step Q-1). The CPU 6 may include a memory 8 (according to the first and third embodiments) for setting a reception period for each information or a memory 9 (second and fourth implementation for setting a reception period for each information. In accordance with an example), the operation of the reception prohibition mode is started (step Q-2). If the specified reception permission mode start condition is satisfied between the operations of the reception inhibition mode (step Q-4), the reception inhibition mode is switched to the reception permission mode (step Q-5). If the stored reception prohibition mode start condition is satisfied between the operations of the reception permission mode (step Q-6), the reception permission mode is switched to the reception prohibition mode again (step Q-3). By repeating this operation, switching between the prohibition mode and the reception permission mode is performed. This flowchart is intended to be executed for each call number or information independent of the receiver instead of the switching operation being performed in relation to the receiver.

11 is a flowchart showing an outline of operation in each reception mode of the first to fourth embodiments of the present invention.

After the power switch of the receiver is turned on, the CPU 6 checks each reception mode switched to each call number or information in FIG. 10 (steps S-1 and S-2). If all call numbers or information numbers correspond to the reception prohibition mode, the power supply to the reception circuit is turned off to prohibit the reception operation (step S-3). If at least one call number of the information number corresponds to the reception permission mode, power is intermittently supplied to the reception circuit 2 (battery saving (BS) operation) (steps S-4 and S-9). When the call number of the home receiver is received (steps S-5 and S-10), the CPU 6 makes a judgment according to the call number at the time of designation for each call number. At the time of designation for each information number, the CPU 6 makes a judgment starting from the head character of the message (step S-11). If the information corresponds to the reception permission mode, a message is received (steps S-7 and S-13). If the information corresponds to the prohibition mode, there is no message reception (steps S-8 and S-14), and the battery saving operation is executed (step S-1).

The CPU 6 always checks the state of the current reception mode for each call number or each information number and performs the operation according to the state.

Fig. 12 shows the correspondence between the call numbers of the first and third embodiments of the present invention, the address of the POCSAG signal format, and the functional address. In call numbers 1 to 8, a combination of a POCSAG address and a functional address is represented.

Fig. 13 shows the correspondence between the head character of each corresponding message and each information number in the second and fourth embodiments of the present invention. Information indicating the information type is determined as the head character of each message.

14 is a timing chart showing the reception mode switching operation of the embodiment of the present invention.

In the timing chart, one call number or information number is set, the reception permit mode start condition is set to a predetermined interval (in this case, 1 hour interval), and the long prohibition mode start condition is a predetermined time (in this case, the reception permission mode starts). 10 minutes after the reception permission mode is started). When the reception period is set, the BS operation is first performed in the reception permission mode. At the same time, a timer circuit 10 is started which performs a time counting operation to determine the start inhibit mode start condition. When the information between the reception permission modes is received, the timer circuit 10 is reset and continues to receive the message by starting to perform a timekeeping operation for determining the reception permission mode start condition. When the message reception is completed, the power supply to the receiving circuit is maintained until the reception allowance mode start condition is satisfied. If the condition is satisfied, the timer circuit is reset and starts to perform the operation of the reception permission mode.

FIG. 15 is another timing chart showing a reception mode switching operation of the embodiment of the present invention.

The timing chart shows an operation performed when the reception prohibition mode before information reception is satisfied in the case shown in FIG.

When the reception permission mode is switched to the reception inhibition mode, the timer circuit 10 is reset and a counting operation for determining the reception permission mode start condition is started.

16 is another timing chart showing the reception mode switching operation of the embodiment of the present invention.

In the timing chart, one call number of the information number is set, the reception permission mode start condition is set to the designated time, and the reception inhibition mode start condition is a predetermined time after the reception permission mode starts (in this case, 10 Shows an operation to be executed only when it is set to After setting the receiving period, the receiver keeps the power supply of the receiving circuit off until a specified time. At the designated time, the BS operation is executed in the receive permission mode. At the same time, the timer circuit 10 that performs the timekeeping operation for determining the reception prohibition mode start condition is reset and starts.

If information is received before the prohibit mode start condition is met, the message continues to be received. If the information is not received, the reception permission mode is switched to the reception inhibition mode. Upon completion of the message reception, the power supply to the reception circuit 2 is maintained until the specified time, such as the reception permission mode start condition. At the specified time, the timer circuit 10 is reset to start operation of the reception permission mode.

17 is a timing chart showing the message receiving operation and the battery saving control operation of the first and third embodiments of the present invention.

The power supply to the receiving circuit is turned on according to its own frame number (F2 in this case) corresponding to the call number of each receiver, and the call number of the home receiver is received in the reception permission mode. In this case, the following received message is received. In contrast, the power supply is turned on for its own frame but turned off for the other frame.

Upon completion of message reception, the power supply to the receiving circuitry is turned off.

18 is another timing chart showing the message receiving operation and the battery saving control operation of the second and fourth embodiments of the present invention.

The first character of the message is received to determine the information number. In the POCSAG method, reception is performed word by word. For this reason, unlike the operation shown in Fig. 17, when the call number of the home receiver is received, at least one word of the subsequent message word is received. When the information of the reception permission mode is determined, the power supply to the reception circuit is turned off.

As described above, according to the present invention, the user on the receiving side sets the type of information or the receiving frequency for each incoming call number. By this operation, the user receives only information selected from a plurality of people, ie from a received message from an undefined number of people. Therefore, even though the number of messages transmitted from the transmitting side increases, the receiving circuit does not need to perform any unnecessary operation, and the power consumption of the receiver is reduced. In addition, since unnecessary information is not stored in the message memory of the receiver, the usage capacity of the memory is reduced.

Claims (10)

A radio selective call receiver having at least one common call number and having storage means for storing received data when power is supplied to a receiving circuit in a first reception period and a call signal for a home receiver is received, each call number. And a memory for setting a reception period for the second reception period, a timer circuit for counting the reception period, and a battery saving control circuit for controlling power supply to the reception circuit on and off in a second period. Wireless selector call receiver. 2. The control unit according to claim 1, wherein the control means for repeatedly controlling the receiving circuit at a set receiving period repeatedly performs battery saving control for intermittently supplying power to the receiving circuit when reception is permitted, and the call number of the home receiver is received. And continue to perform message reception and control to completely stop supplying power to the reception circuitry if reception is prohibited. The receiver of claim 1, wherein the receiver has a plurality of call numbers, and the control means for repeatedly controlling the receiver circuit at a set reception period intermittently supplies power to the receiver circuit when reception of at least one call number is permitted. Repeatedly performing battery saving control, and if the reception of the incoming call number is allowed, continues to receive the message; if reception is prohibited, the battery saving control of the reception circuit is performed without receiving any subsequent message. Select call receiver. 2. The apparatus according to claim 1, wherein the control means for controlling the reception circuit by changing the reception period in accordance with a user's intention comprises: means for performing reception permission processing at predetermined intervals, means for performing reception permission processing at a desired time; Means for maintaining a receive permission state for a predetermined period of time. 2. The radio select call receiver according to claim 1, wherein the means for performing reception permission processing at predetermined intervals starts by resetting the timer circuit when receiving a call number. 2. The radio select call receiver according to claim 1, wherein the reception period setting means sets the reception period by a switching operation of the receiver. The radio select call receiver according to claim 1, wherein said reception period setting means sets data in said reception period setting memory in accordance with a signal from a computer connected to said receiver. A receiver for receiving an information service radio signal from a reception message following a call number enabling determination of a transmission period according to claim 1, wherein the reception period setting means decodes transmission period designation data specified in a reception message, and receives the reception message. A receiver characterized by setting data in a period setting memory. A radio selective call receiver for receiving an information service radio signal from a received message following a call number enabling determination of an information type, comprising: a memory for setting a reception period as a second reception period for each information, and counting reception periods; And a battery saving control circuit for on / off controlling the supply of power to the receiving circuit. 10. The apparatus of claim 9, wherein the control means for repeatedly controlling the receiving circuit at a second set receiving period performs battery saving for intermittently controlling the power supply to the receiving circuit when receiving at least one type of information is allowed. Message reception is continuously performed when the type of information that can be determined from the message following the call number indicates the reception permission, and when the information type indicates the reception inhibition, the reception of the message is stopped and battery saving control of the reception circuit is performed. Wireless selector call receiver.