JPH0362636A - Selective radio call receiver - Google Patents

Abstract

PURPOSE:To decide the operating state of a radio selective call receiver with remote control by applying power supply with switch operation and interrupting power supply when a predetermined character string is detected in a message. CONSTITUTION:A reception section 2 is operated intermittently by an operation start command from a switch section 7. The state is transited to a state 22 receiving a synchronizing signal 41 by receiving a preamble signal 40 informing the transmission of information in the intermittent reception state 21. When the state 22 is transited and the signal 41 is detected within a specified time, the state is transited to the state 23 awaiting the reception of the signal 41 and an address signal 44 received only for a time assigned to its belonging group. The receiver transited to the state 23 receives the signal for a predetermined time assigned to its own group and compares it with its own address and when the both are equal, the code word is received successively. When the received signal is a message signal 45 and a stop control signal, the control section 4 sets each section of the receiver to the stop state and stops its own operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wireless selective call receiver, and particularly relates to the power ON/FF operation of the receiving section.

[Conventional technology]

In conventional wireless selective calling receivers, the ON/OFF state of the receiver's power was controlled by a power switch installed in the housing. For example, a slide switch was used as the power switch, and battery voltage was supplied/stopped to each block of the receiver by turning the switch 0N10FF.

In other conventional wireless selective calling receivers, the power switch is connected to the control unit. Battery voltage is constantly supplied to each block of the receiver, and when the power switch is turned on, the controller starts up the receiver and decoder.
When the power switch was turned off, the operation of the receiving section and the decoder section was stopped. Since the control section is composed of a CMO3LSI, the power consumption is negligible even if battery voltage is supplied when the power is turned off.

[Problem to be solved by the invention]

Conventional wireless selective calling receivers are activated or deactivated by a power switch installed in the housing. Therefore, it is up to the person carrying the receiver to decide whether or not the receiver is ready for a call.

Therefore, if the person carrying the receiver carelessly operates the power switch, there is a problem in that when it becomes necessary to send information, the receiver may not be in a state waiting for a call and may become unable to make a call.

In the past, receiver owners were familiar with how to operate the receiver, so this rarely caused problems. However, when providing a service where selective call receivers are lent to customers waiting at banks, hospitals, etc., and displaying the meeting time, etc.,
Since the person carrying the receiver is not accustomed to operating the receiver, it is not desirable to be able to easily turn off the receiver.

A simple solution could be to eliminate the power switch and leave the power on all the time to prevent erroneous operation by inexperienced users, but this has the disadvantage that the battery will drain quickly and is not economical.

SUMMARY OF THE INVENTION An object of the present invention is to provide a radio selective calling receiver that eliminates such drawbacks.

[Means to solve the problem]

The present invention includes a receiving section that receives and demodulates a carrier wave modulated by a selective paging signal and a message signal following the selective paging signal, and a receiving section that compares the demodulated paging signal with a predetermined self-selective paging signal, and when the signal is matched, control is performed. a decoder section that starts the message signal and outputs a subsequent message signal to the control section; a control section that starts the notification section and displays the received message on the message display section when the message signal is input; In the selective call signal receiver with a display function, the control unit comprises: a notification unit that notifies the user by emitting sound or light that a message has been received; a message display unit that displays a received message; and at least one switch. has a comparing means for comparing a received message manually input from the decoder section with a predetermined character string, and when the switch is operated, starts the operation of the receiving section and the decoder section, and at least It is characterized in that when the comparison means detects a predetermined character string, the operation of the reception section and the decoder section is stopped.

〔Example〕

FIG. 1 shows the configuration of a wireless selective calling receiver according to the present invention.

The receiving section 2 receives from the antenna 1 the carrier wave modulated by the selective calling signal and the message signal following it, demodulates it, and outputs the demodulated signal (2) to the decoder section 3.

The decoder section 3 compares the calling signal demodulated by the receiving section 2 with its own predetermined selective calling signal, and when they match, activates the control section 4 and sends the subsequent message signal (
The decoded signal () is output to the control unit 4. Further, the decoder section outputs a receiving section control signal @ to the receiving section 2.

When the message signal is input, the control section 4 activates the notification section 5 with the notification section drive signal 0, and causes the message display section 6 to display the received message [phase]. The control section 4 exchanges a decoder control signal (■) with the decoder section 3 and outputs a display section control signal (■) to the message display section 6. Further, a stop control signal, which is a character string, is registered in advance in the control unit 4.

The notification unit 5 notifies the person carrying the receiver that there is a call.
Notify by emitting sound or light.

The message display section 6 displays the received message.

In the case of this embodiment, the switch section 7 is composed of one bushing switch. This switch is a switch that stops the operation of the notification section 5. This switch also serves as an operation switch for starting operation of the receiver when the receiver is in a stopped state. The switch unit outputs a switch manual signal 0 to the control unit 4.

In the case of a conventional radio selective call receiver, stopping the operation is similarly set by operating a switch, but the radio selective calling receiver of the present invention is not provided with a switch for stopping the operation. To stop the operation of the receiver, a calling signal based on the regulations is sent to the receiver, followed by a message instructing the receiver to stop the operation. The control section 4, which has received the signal to stop the operation, sets the other components of the receiver to the stopped state, and after bringing them into the stopped state, the control section 4 also stops itself.

FIG. 2 shows a transition diagram of the reception state of the radio selective calling receiver of the present invention, and FIG. 3 shows a timing diagram of the operation of each component of the radio selective calling receiver of the present invention.

In the CCIR No. 1 wireless selective calling receiver, the receiving section 2 operates intermittently in response to an operation start command from the switch section 7 in order to effectively utilize the battery for power supply. In this intermittent reception state 21, by receiving a preamble signal 40 indicating information transmission,
A transition is made to a state 22 in which a synchronization signal 41 is received. When the synchronization signal reception wait state 22 is entered and the synchronization signal 4 is within the specified range,
1 is detected, the synchronization signal 41 and the address signal 44 receive only the time allocated to the group to which it belongs.
The process moves to a state 23 in which it waits for the reception of . Note that if the synchronization signal reception wait state 22 is entered and the synchronization signal 44 is not detected within the specification (time over), the state returns to the intermittent reception state 21 again. If synchronization occurs in the address reception waiting state, the state returns to the synchronization signal reception waiting state M22.

The receiver that has transitioned to the address reception state 23 receives a signal at a predetermined time allocated to its own group, compares it with its own address, and if it receives its own address and the two are equal, it subsequently sends a code. message is received (message reception state 24). If the received signal is a message signal 45, the control unit 4 compares this message with a pre-registered stop control signal.

If the received message is a stop control signal, the control unit 4 sets each part of the receiver to a stopped state, and then stops its own operation (stopped state 20).

To restart the operation of the receiver from the stopped state 20, the switch of the switch section 7 is used.

If a stop signal is not detected during the received message, the notification unit 5 is activated to notify the carrier of the call, and at the same time the received message is displayed on the display unit 6, and then the message waiting for address reception is activated. Return to state B23.

In the state 23 of waiting for address reception, if address signals are received continuously after receiving the own address, the state does not shift to the message reception state 24, but the notification unit 5 is activated and the carrier is called. and the display section 6
It also shows that there was only a call.

〔Effect of the invention〕

As explained above, the present invention can turn the power on or off with a simple switch operation, and has the function of turning off the power when a predetermined character string is detected in a message. It is possible to determine the operating status of a wireless selective call receiver by remote control by a provider.

For the second reason, when unspecified customers at banks, hospitals, airports, etc. carry a wireless selective call receiver,
This has the effect of preventing erroneous operations such as a customer accidentally stopping the receiver's operation.

In addition, the power to the receivers can be turned off all at once from the transmitter, saving you the trouble of turning off the power switch for each receiver. Effective use of batteries, etc. can be achieved.

[Brief explanation of drawings]

1 is a block diagram of the wireless selective calling receiver of the present invention, FIG. 2 is a transition diagram of the receiving state of the wireless selective calling receiver of FIG. 1, and FIG. 3 is a diagram of the wireless selective calling receiver of FIG. 1. FIG. 3 is an operation timing diagram of each component. l...Antenna 2...Receiving section 3...Decoder section 4... 5... 6...7...20...21...22...・ 23 ・ ・ 24 ・ ・ 40 ・ ・ ・ 41 ・ ・ 42. 43 ・ 44 ・ ・ 45 ・ ・ ・ Control section, notification section, display section, switch section, stop state, intermittent reception state, synchronization Signal reception status, address reception status, message reception status, preamble signal, synchronization signal, signals of other groups, address information, message information

Claims (1)

[Claims] (1) A receiving unit that receives and demodulates a carrier wave modulated by a selective call signal and a message signal that follows it, and a control unit that compares the demodulated call signal with its own predetermined selective call signal, and when they match, a control unit a decoder unit that starts up the message signal and outputs a subsequent message signal to the control unit;
a control unit that activates a notification unit when the message signal is input and displays the received message on a message display unit;
Selective call signal reception with display function, comprising: a notification section that notifies the person carrying the receiver that there is a call by emitting sound or light; a message display section that displays a received message; and at least one switch. In the machine, the control section includes comparison means for comparing the received message input from the decoder section with a predetermined character string, and when the switch is operated, the control section A wireless selective paging signal receiver, characterized in that the receiving section and the decoder section stop operating when at least the comparing means detects a predetermined character string.