JPH0595319A - Radio receiver - Google Patents

Abstract

PURPOSE:To provide the radio receiver registering easily a routine message registered to a receiver to other receiver between the one radio receiver and the other radio receiver. CONSTITUTION:An engaging projection 23 and an engagement recessed part 24 are formed to a right side face of a main body case 20 of each radio receiver and when they are used to be engaged with two radio receivers, and an interface section 22 enclosed so as to shut an external light is provided to each radio receiver and a routine message registered in one radio receiver is transferred to the other radio receiver for the registration through any one of two sets of photocouplers comprising an infrared ray emitting diode 14 and a photo transistor 17 provided in the interface section 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio receiver that displays a corresponding fixed message based on a received code signal.

[0002]

2. Description of the Related Art Conventionally, in a paging receiver with a display function, which is a kind of wireless receiver, a frequently used message is stored in advance in a RAM as a standard message and based on a code signal in the received message data. , R above
In some cases, the corresponding message is selected from the standard messages stored in the AM and then restored and displayed.

[0003]

In the wireless receiver as described above, generally, in order to store the fixed message in the RAM in advance, it is inputted as character data by key operation. However, in a group consisting of a plurality of persons, each of whom has the same type of wireless receiver, when each person inputs some common fixed message to each wireless receiver in order to communicate with each other, It is inefficient for each person to input those messages to his / her own wireless receiver by key operation, and the mistaken input by some persons may cause confusion in the communication within the group. The present invention has been made in view of the circumstances as described above, and a wireless receiver capable of easily registering another fixed message registered between one wireless receiver and another wireless receiver. For the purpose of providing.

[0004]

In order to achieve the above object, the present invention is provided with interface means for exchanging fixed messages stored in fixed message storage means with each other.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on an embodiment shown in the drawings. The present embodiment is an application of the present invention to a paging receiver. Configuration FIG. 1 shows the circuit configuration of this embodiment. That is, in the present embodiment, the CPU 1 is the main component, and another circuit portion is connected thereto. The CPU 1 is a circuit unit that controls each circuit unit according to a program stored in a built-in ROM.
The receiving unit 3 is a circuit unit that demodulates a reception signal received by the antenna 2. The ID-ROM 5 is a circuit unit that stores the frames and addresses individually assigned to the paging receiver and sends the stored frames and addresses under the control of the decoder unit 4 to the decoder unit 4. is there. The decoder unit 4 is a circuit that decodes the reception signal demodulated by the reception unit 3 based on the data from the ID-ROM 5, and when it is for itself, sends it to the CPU 1.

The key input unit 6 is a circuit for sending a corresponding key input signal to the CPU 1 when any of the switches SW _{1 to} SW ₅ provided between the circuit and the ground is operated. . RAM7 is CP under the control of CPU1.
This circuit stores a message received from U1 and the like and sends the stored message and the like to the CPU1.
The character generator 8 is a circuit unit that sends character pattern data of a designated character to the CPU 1 under the control of the CPU 1.

The buffer 9 is displayed on the display unit 10 as C
The display unit 10 is a memory circuit in which the data (such as a fixed message) sent from the PU 1 is set, and the display unit 10 is a circuit unit that includes a liquid crystal display panel and displays the data set in the buffer 9 therein. .. Driver 11 is CP
It is a circuit unit that receives a control signal from U1 and drives the speaker 12 to generate a ringing tone.

The node of the infrared light emitting diode 14 whose anode is connected to the terminal T ₁ connected to the positive side of a direct current power source (not shown) via the resistor R1 is connected to the emitter of the transistor 15 of the PNP. Has been done. The base of the transistor 15 is provided with an output of a circuit for amplifying a signal from the CPU 1, for example, an inverter 16, and the collector of the transistor 15 is grounded. The emitter of the phototransistor 17 having a collector through a terminal T ₂ to the resistor R2 connected to the positive electrode side is connected to a DC power source (not shown) is grounded, further collector of the phototransistor 17 The potential at (i.e., the voltage drop due to the resistor R2) is inverted by the signal amplifying inverter 18 and given to the CPU 1.

FIG. 2 shows an appearance of this embodiment and a state in which a fixed message is transferred and registered between two paging receivers according to this embodiment. That is, the liquid crystal display panel 21 of the display unit 10 is arranged on the upper front side of the main body case 20, and the switches SW _{1 to} SW ₅ are arranged below the liquid crystal display panel 21. Further, on the right side surface of the main body case 20, the infrared light emitting diode 14 and the interface portion 22 in which the phototransistor 17 is exposed are provided, and further on the upper portion of the side surface, an engaging convex portion 23, Engagement recesses 24 are formed in the lower portion of the side surface, and these engagement protrusions 23 and engagement recesses 24 are engaged with each other as shown by the dotted line in FIG. Engages with the part 23 and the engaging recess 24,
At this time, the two paging interface units 22
Are closely contacted and hermetically sealed so that external light does not enter, and the infrared light emitting diode 14 and the phototransistor 17 of both paging receivers form two sets of photocouplers whose transmission directions are opposite to each other.

Operation Next, the operation of this embodiment configured as described above will be described. This embodiment has five modes: a normal mode, a fixed message display mode, a fixed message registration mode, a fixed message transmission mode, and a fixed message reception mode. These modes are as shown in FIG.
Generally, the switches are sequentially switched by operating the switch SW _1. However, the switch between the standard message display mode and the standard message registration mode is performed by operating the switch SW ₂ , and the standard message display mode or the standard message transmission mode is normally changed. Switch to mode SW ₅
The operation is performed.

For example, assume that the normal mode is set. When the switch SW ₃ is operated, a key input signal corresponding to the CPU 1 is sent from the key input unit 6 each time, and the CPU 1 receives the received message and stores the received message stored in the received message area of the RAM 7. Are sequentially sent to the buffer 9 in the order of new reception and are displayed on the liquid crystal display panel 21 of the display unit 10. Also, each time the switch SW ₄ is operated, a key input signal corresponding to the CPU 1 is sent from the key input unit 6, and the CPU 1 receives the key input signal and receives the signal stored in the reception message area of the RAM 7. The messages are sequentially sent to the buffer 9 in the old order (that is, in the reverse order of the above case) and displayed on the liquid crystal display panel 21 of the display unit 10. When the specific received message displayed as described above is deleted from the RAM 7, the switch SW ₅ is operated. At this time, in response to the operation, a corresponding key input signal is sent from the key input unit 6 to the CPU 1,
In response to this, the CPU 1 sends a signal to the RAM 7 to erase the storage of the received message being displayed.

In the standard message display mode, each time the switch SW ₃ is operated, standard messages stored in the standard message area of the RAM 7 are sequentially displayed on the liquid crystal display panel 21 from the smallest address in the RAM 7. The fixed message is sequentially displayed on the liquid crystal display panel 21 from the one having the largest address in the RAM 7 each time the switch SW ₄ is operated.

The standard message registration mode is a mode for registering a message to be registered in the standard message area of the RAM 7 as a standard message. In this case, the code number and character data related to the message are switched to the switches SW ₃ to SW. Enter using ₅ (eg 01,
Enter like Den Waku). That is, switch SW
_{At 5} , the input digit is shifted and designated, and the switches SW ₃ and SW ₄ are used to select the forward or backward direction of the input number or character. At this time, the input number or the like is changed.
The pattern is converted into a corresponding pattern from the curactor generator 8 and displayed on the liquid crystal display panel 21. Incidentally, as described above, the code number and the message input by operating the switch SW ₃ to SW _5, upon operating the switch SW ₂ to switch from the constant-type message registration mode to fixed message display mode, and confirm the fixed message , Is transferred to and registered in the standard message area of the RAM 7 by the CPU 1.

In the fixed message transmission mode, a fixed message already registered in the paging receiver is transferred to another paging receiver of the same type as the paging receiver via the interface unit 22 of both the paging receiver and This is a mode for setting a fixed message in the fixed message area of the RAM 7 of the paging receiver. When transferring the fixed message registered in the paging receiver to another paging receiver, the paging receiver is set to the fixed message transmission mode and the other paging receiver is set to the fixed message reception mode described later. After that, as shown in FIG. 2, the two units are engaged with each other by the engagement projections 23 and the engagement recesses 24 of the both units, and the interface sections 22 of the both units are closely attached to each other. After that, the switch SW ₃ or the switch SW ₄ is operated to display the standard message to be transferred on the liquid crystal display panel 21 (at this time, the switch SW ₃ or the switch SW ₃ or the switch is displayed as in the case of the standard message display mode described above. By operating the SW _4, the standard messages registered in the standard message area are sequentially specified in order or in reverse order and displayed on the liquid crystal display panel 21). Then, the switch SW ₂ is operated, whereby the CPU 1 sequentially and serially sends the data code signal relating to the transfer target fixed message to the inverter 16, and the inverter 16 inverts this and outputs the data code signal of the transistor 15. Give to the base (see Figure 1). Therefore, the transistor 15, that is, the infrared light emitting diode 14
A current corresponding to the data code signal flows through the infrared light emitting diode 14, and eventually the infrared light emitting diode 14 outputs an optical signal corresponding to the data code signal. At this time, when the other paging receiver engaged with the paging receiver is in the standard message receiving mode described next, the phototransistor 1 outputs the optical signal.
It is received at 7 and taken in as an electric signal, and registered in the RAM 7 as a fixed message.

When the switch SW ₁ is operated in the standard message transmission mode to enter the standard message reception mode, a positive voltage is applied to the terminal T ₂ in FIG. 1 and an electric signal corresponding to the light received by the phototransistor 17 is supplied to the inverter. It will be sent to the CPU 1 via 18. That is, the mode is a mode in which a fixed message is transferred from another paging receiver as an optical signal through the interface unit 22 as shown in FIG. is there. In this case, a constant voltage is applied to the collector of the phototransistor 17 as described above, but the infrared light emitting diode 14 of the other paging receiver engaged in this state outputs an optical signal related to the fixed message. When a current is sent, a collector current flows through the phototransistor 17 each time, and a voltage drop occurs due to the resistance R2.
The inverter 18 is a signal that reverses this voltage drop, that is, the infrared light emitting diode 1 of another paging receiver to be engaged.
An electric signal corresponding to the optical signal from the optical disc 4 is sent to the CPU 1. Then, the CPU 1 stores the sent electric signal in the blank line of the fixed message area of its own RAM 7, and registers the fixed message registered in another paging receiver in its own RAM 7.

As described above, in the paging receiver according to this embodiment, the standard message registered in one paging receiver by the switch operation can be sequentially transferred to another paging receiver and registered. It is possible to avoid the inconvenience that the registration by the switch operation is complicated only once, and further, the standard message registered in each paging receiver becomes different due to an operation error for each registration by the switch operation.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be applied without departing from the scope of the present invention.

[0018]

As described in detail above, the present invention relates to a radio receiver provided with interface means for mutually exchanging fixed messages stored in fixed message storage means. It is possible to provide a wireless receiver capable of easily registering a fixed message registered in one of the wireless receiver and the other wireless receiver.

[Brief description of drawings]

FIG. 1 is a diagram showing a circuit configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing an appearance of the above embodiment and a state in which transfer registration of a standard message is performed.

FIG. 3 is a diagram for explaining the operation of the present embodiment.

[Explanation of symbols]

1 CPU 2 Antenna 3 Receiver 4 Decoder 5 ID-ROM 6 Key Input 7 RAM 8 Character Generator 9 Buffer 10 Display 11 Driver 12 Speaker 14 Infrared Light Emitting Diode 15 Transistor 16, 18 Inverter 17 Phototransistor 20 Body Case 21 liquid crystal display panel 22 interface unit 23 engaging projection 24 engaging recesses R1, R2 resistor T _1, T ₂ terminal

Claims (2)

[Claims] 1. A fixed message storing means for storing a fixed message is provided, and based on the received code signal, a corresponding fixed message is selected from the fixed messages stored in the fixed message storage means and is restored and displayed. A wireless receiver having a function, comprising interface means for exchanging a fixed message stored in the fixed message storage means with another wireless receiver. 2. The wireless receiver according to claim 1, further comprising an input unit for receiving character data in response to a key operation in order to store a fixed message in the fixed message storage unit.