JPH04356828A - Selective call radio receiver - Google Patents

Abstract

PURPOSE:To obtain the selective call radio receiver usable for a telephone line network disabled over dialing by providing a means for transforming display information to tone signals and an operation part for inputting the display information. CONSTITUTION:When desired information to be transmitted is inputted from an operation part 207, the inputted signals are passed through a control part 204, displayed at a display 210 by a drive part 209, inputted to a storage part 208 and stored. The signals stored in the storage part 208 are transformed to the tone signals by the control part 204, turned to sounds through a drive part 205 and outputted by a sounding body 206. Thus, since a selective call radio base station is equipped with a decoder part for demodulating the tone signals, the display information can be transmitted even at the telephone circuit network disabled over dialing by utilizing a receiver with display.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to radio selective calling receivers.

0002

2. Description of the Related Art In recent years, a wireless selective calling system has been adopted in which information is transmitted using a wireless selective display calling receiver. However, in a telephone network using a conventional step-by-step switching system or a crossbar switching system, it is difficult to perform so-called overdialing, in which display information is sent following a telephone number.

0003

Accordingly, it has not been possible to use a wireless selective display paging receiver using conventional telephone networks.

An object of the present invention is to provide a system in which the above-mentioned problems are eliminated by providing means for converting information into a tone signal in a radio selection display paging receiver and providing a decoder unit in the base station to demodulate the tone signal. An object of the present invention is to provide a wireless selective call receiver used in

[0005]

[Means for Solving the Problems] Each of the radio selective calling receivers according to the present invention includes an operation section, a control section, a sounding body,
It is configured to include a display device.

[0006] The operation section is for inputting necessary tone information.

[0007] The control section is for converting tone information input from the operation section into a tone signal.

[0008] The sounding body generates a ringing tone in response to a wirelessly transmitted calling signal, and also converts a tone signal into a voice signal.

[0009] The display is for displaying display information sent wirelessly as well as tone information input from the operation unit.

0010

Embodiments Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a transmitting/receiving system to which a radio selective calling receiver according to the present invention is applied. In FIG. 1, 1 is a receiver, 2 is a telephone, 3 is an exchange, 4 is a radio selective calling base station, 5 is a control section, 6 is an encoding device, 7 is a decoder section, 8 is a transmitter, 9 is an antenna, 10 is a telephone, 11 is a receiver, 101 is a filter, 10
2 is a demodulator, and 103 is a decoder.

In FIG. 1, a receiver 1 is a radio selective display calling receiver having a function of converting information into a tone signal and transmitting the tone signal. Details of the receiver 1 will be explained later. When calling a particular receiver to send information, a person carrying receiver 1 first calls receiver 1.
Then, dial the calling number of a certain specific receiver from the telephone set 2. This calling number is sent to the wireless selective calling base station 4 via the exchange 3. Wireless selective calling base station 4
is realized by the control section 5, the encoding device 6, the decoder section 7, the transmitter 8, and the antenna 9.

The calling number input to the control section 5 is sent to the encoding device 6, and the decoder section 7 is activated by inputting the calling number to the control section 5. When the decoder section 7 starts up, the control section 5 sends a back tone to the telephone 2 via the exchange 3 indicating that the telephone 2 and the radio selective calling base station 4 are connected. The person carrying the receiver 1 listens to the backtone before transmitting information through the receiver 1. This information is converted into a tone signal by the receiver 1, and the tone signal is a sound signal such as a PB signal or a binary FSK signal.

The tone signal is sent to the decoder section 7 via the exchange 3 and the control section 5, decoded by the decoder section, and then input to the encoding device 6. When the signal sent from the receiver 1 is a digitally encoded signal such as an FSK signal, the decoder section 7 includes a filter 101 for blocking noise from the line and the telephone transmitter. include. The output signal of the filter 101 is demodulated by the demodulator 102,
The waveform is shaped into a digital signal. This digital signal is input to the decoder 103, decoded, and sent to the encoding device 6. The encoding device 6 converts the called party's calling number and the information signal input from the decoder section 7 into a signal format used for selective calling, for example, a POCSAG code, and outputs it to the transmitter 8. The signal sent to the transmitter 8 is modulated into a radio frequency and is emitted from the antenna 9 as a radio wave. The emitted radio waves call a receiver 11 that has a display function and corresponds to the calling number, and displays information on the display. When the tone signal sent from the receiver 1 is a PB signal, the decoder section 7 is constituted by a PB receiver.

The method in which a person carrying the receiver 1 calls the receiver 11 and sends out information has been described above. If the receiver 11 has the same functions as the receiver 1, it is possible for a person carrying the receiver 11 to call the receiver 1 and send information. Moreover, although the operation of two receivers has been described above, it goes without saying that three or more receivers can be used.

Next, a receiver used in the wireless selective display calling system according to the present invention will be explained in detail.

FIG. 2 is a block diagram showing an embodiment of a radio selective calling receiver according to the present invention. 201 in Figure 2
is an antenna, 202 is a radio section, 203 is a storage section, 204
205 is a control section, 205 is a drive section, 206 is a sounding body, 207 is an operation section, 208 is a storage section, 209 is a drive section, and 210 is a display section.

In FIG. 2, radio waves transmitted from a wireless selective calling base station are received by an antenna 201.
The signal is input to the wireless section 202. The radio section 202 demodulates the input high frequency signal, converts it into a digital signal, and sends it to the control section 204. The storage unit 203 consists of a storage circuit that stores a unique number for each receiver, and is constructed from a ROM. The control unit 204 compares the digital signal input from the radio unit 202 with the signal specific to the receiver read from the storage unit 203. When the selective call signal in the digital signal and the signal read from the storage section 203 match, a sound signal is sent to the drive section 205. The drive unit 205 amplifies the sound signal and sends it to the sounding body 20.
Drive 6. The sounding body 206 is constituted by a so-called speaker. A display information signal is sent following the selection call signal, and this signal is decoded by the control unit 204, stored in the storage unit 208, and further sent to the drive unit 209 as display information to be displayed on the display 210. Ru. The display 210 is composed of a liquid crystal display device or an ECD display device.

In response to the signal sent as described above, the receiver generates a sound and displays information on the display 210.

Next, a method for transmitting display information from the receiver will be explained.

The operating section 207 is composed of, for example, decimal keys, and is used by the person carrying the receiver to input information that he or she wishes to send. A signal input from the operation unit 207 is displayed on the display 210 by the drive unit 209 via the control unit 204, and is also input to and stored in the storage unit 208. The signal stored in the storage section 208 is converted into a tone signal by the control section 204. The tone signal is a binary FSK signal or a PB signal. The binary FSK signal and the information signal converted into the PB signal are sent out as sound by the sounding unit 206 via the drive unit 205.

FIG. 3 is an external view of a receiver used in the system of the present invention.

FIG. 3A is a diagram of the receiver viewed from the front side, in which a liquid crystal display device or an ECD display device 302 is mounted on a housing 301, and an operation section 303 such as a decimal key is provided. A person carrying the receiver operates the operation unit 303 while looking at the display unit 302, and inputs information to the receiver to be transmitted. Each of 0 to 9 displayed on the operation unit 303 is the number 0.
This is a key for inputting 9 to 9, and C is a clear key for erasing input information. SEND is a key used when transmitting information input into the storage section of the receiver as an audio signal.

FIG. 3(b) is a diagram of the receiver of FIG. 3(a) seen from the back side, showing the mounting position of a sounding body such as a speaker and the opening of the receiver so that the sound comes out from the receiver. A sounding body mouth 304 is shown. Receiver sounding body port 304
The telephone transmitter is acoustically coupled to send a tone signal to the base station. FIG. 4 is a conceptual diagram showing such acoustic coupling. 3 in Figure 4
05 is a receiver, and 306 is a telephone transmitter.

[0025]

As described above, the present invention includes a radio selective call receiver that is equipped with means for converting display information into a tone signal and an operation section for inputting the display information. By equipping the station with a decoder section for demodulating tone signals, it is possible to send display information using a receiver equipped with a display even in a telephone network where overdialing is not possible. This has the effect of minimizing the size of the receiver.

[Brief explanation of drawings]

FIG. 1 is a block diagram for explaining a method to which a wireless selective calling receiver according to the present invention is applied.

FIG. 2 is a block diagram showing an embodiment of the wireless selective calling receiver of the present invention.

FIG. 3 is a conceptual diagram showing the appearance of an embodiment of a receiver according to the present invention.

FIG. 4 is a conceptual diagram illustrating an acoustic coupling method between a receiver and a transmitter according to the present invention.

[Explanation of symbols]

1,11,305 Receiver 2,10 Telephone 3　　　　　Exchange machine 4 Wireless selective calling base station 5,204 Control section 6 Encoding device 7 Decoder section 8 Transmitter 9,201 Antenna 101 Filter 102 Demodulator 103 Decoder 202 Radio section 203, 208 Storage section 205, 209 Drive part 206,306 Pronunciation body 207, 303 Operation unit 210,302 Display 301 Housing 304 Pronunciation Body Mouth

Claims (1)

[Claims] 1. In a radio selective call receiver, a radio unit that receives and demodulates a radio signal and outputs a demodulated signal, and a selective call signal included in the demodulated signal and a signal indicating a number unique to the receiver match. means for generating a sound signal when the sound signal is generated; an operation section for inputting tone information; means for converting the tone information inputted from the operation section into a tone signal; A wireless selective call receiver comprising: a sounding body that converts into an audio signal.