JPH05324511A - Radio communication equipment - Google Patents

Abstract

PURPOSE:To improve the practicability by communicating sounds and data between a radio machine on a host computer side and that on a terminal side by radio and enabling real-time data communication and quick connection without interruption. CONSTITUTION:Radio slave machines 321 to 32n connected to POS terminals 311 to 31n bidirectionally communicate/call with a radio master machine 34 connected to a host computer 33 by time division multiplexing. Consequently, respective terminals 311 to 31n can communicate data with the computer 33 in a real time. Slave machines 321 and 32n and the master machine 34 use transmitter-receives to call with each other with voice, and slave machines 321 to 32n as well as the master machine 34 use transmitter-receivers to call with an opposite party on a public line through a line connecting device 35 with voice. Consequently, the quick contact on business with voice is available between terminals 311 to 31n and the computer 33 and between terminals 311 to 31n as well as the computer 33 and the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of POS, for example.
(Point-of-sale information management) The present invention relates to a wireless communication device applied to a POS system or the like in which terminals are managed by a host computer.

[0002]

2. Description of the Related Art Conventionally, as a POS system using a wireless device, there are n POS terminals 11-1 as shown in FIG.
The wireless slaves 21 to 2n dedicated to data transmission are connected to n, respectively, and the wireless master device 4 dedicated to data transmission is also connected to the host computer 3 managing these POS terminals 11 to 1n, and the host computer 3 is connected to the modem. It is known that a public line 7 is connected via the NCU 6 and the NCU 6 and a telephone 8 is connected to the NCU 6.

As shown in FIG. 6, the wireless slave units 21 to 2n control the wireless device 14 and a wireless device 14 including a transmitting device 11 and a receiving device 12 and an antenna 13 connected to each of the devices 11 and 12. With POS terminals 11-1n
A control device 16 is provided to which a terminal interface 15 for transmitting and receiving data is connected. A terminal connector 17 is connected to the terminal interface 15.

As shown in FIG. 7, the wireless master device 4 has a transmitting device 2
1 and a receiving device 22 and a radio device 24 including an antenna 23 connected to each of the devices 21 and 22, and a host computer interface 2 for controlling the radio device 24 and transmitting / receiving data to / from a host computer 3.
A control device 26 to which 5 is connected is provided. A host computer connector 27 is connected to the host computer interface 25.

As a result, the POS terminals 11 to 1n and the host computer 3 are connected to the wireless slave devices 21 to 2n and the wireless master device 4.
Data communication is wirelessly performed via the public line 7, data communication with the other side is performed via the public line 7, and voice communication is performed with the other side by using the telephone 8.

The wireless slave devices 21 to 2n and the wireless master device 4 used here are wireless devices dedicated to data, and are wireless equipments belonging to a local wireless station or a specific low power wireless station, so they are defined by the Radio Law. The transmission will be stopped during the transmission pause time.

[0007]

In such a conventional wireless communication system, communication interruption due to the transmission pause time is unavoidable, and therefore PO requiring real-time processing is required.
There was a problem that it was not suitable for the S system. In addition, voice communication between the POS terminal and the backyard in which the host computer is installed and voice communication from the POS terminal through the public line are not possible, which is very inconvenient because business cannot be quickly contacted.

Therefore, the present invention enables real-time data communication without interruption, and enables voice communication between a terminal and a host computer or from the terminal through a public line, thus enabling quick communication and practicality. It is intended to provide a wireless communication device capable of improving the above.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a wireless terminal for wirelessly transmitting voice and data by modulating a carrier by a digitally encoded audio signal and digital data signal is provided as a terminal and a host computer for managing the terminal. The wireless device on the host computer side is connected to the public line directly or via a line connection device, and the wireless device on the host computer side and the wireless device on the terminal side wirelessly communicate voice and data. .

[0010]

In the present invention having such a configuration, data communication is continuously performed between the wireless device of the terminal device and the wireless device of the host computer without providing a transmission pause time. This enables continuous data communication with the host computer and the other party on the public line. Also, voice communication is performed between the wireless device of the terminal and the wireless device of the host computer. This enables voice communication not only with the host computer but also with the other party on the public line.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the present invention is applied to a POS system.

As shown in FIG. 1, n POS terminals 311
, 312, ..., 31n are wireless slave units 321, 322, ... Which are PHP (second generation cordless telephone) slave stations, respectively.
32n are connected and each of these POS terminals 311
A wireless master device 34, which is a PHP base station, is connected to a host computer 33 that manages ~ 31n.

Each of the POS terminals 311 to 31n is installed in a sales counter of a store, and the host computer 33 is installed in a backyard of the store.

The wireless base unit 34 also includes a line connection device 3
A public line 36 such as an analog telephone line or an ISDN line is connected via the line 5. It is also possible to directly connect the wireless master device 34 and the public line 36 without using the line connection device 35.

As shown in FIG. 2, each of the wireless slave devices 321 to 32n includes a transmitting device 41, a receiving device 42, and each of these devices 4.
Radio device 4 comprising antenna 43 connected to 1, 42
4. Transmitting device 41 and receiving device 42 of this wireless device 44
In addition, it controls the voice coding device 45 for coding the transmission signal and decoding the reception signal, and further, for each of the POS terminals 31.
A control device 47 for controlling the terminal interface 46 that transmits and receives data to and from 1 to 31n is provided.

The voice coding device 45 includes a handset 48.
And a terminal connector 49 is connected to the terminal interface 46.

As shown in FIG. 3, the wireless base unit 34 includes a transmitting device 51, a receiving device 52 and a wireless device 54 including an antenna 53 connected to each of the devices 51 and 52, a transmitting device 51 of the wireless device 54, Receiving device 52 and speech coding device 5 for coding a transmission signal and decoding a reception signal
5, a host computer interface 56 for transmitting / receiving data to / from the host computer 33 and a control device 58 for controlling a line interface 57 for transmitting / receiving data to / from a partner on a public line via the line connection device 35 are provided. ing.

The voice encoder 55 has a handset 59.
, A host computer connection connector 60 is connected to the host computer interface 56, and a line connection connector 61 is connected to the line interface 57.

As shown in FIG. 4, a transparent electromagnetic wave shielding material 63 is attached to the glass window or door of the store 62 in which these devices are installed.

In the embodiment having such a configuration, each P
The wireless slave devices 321 connected to the OS terminals 311 to 31n
32n performs bidirectional communication / call by time-division multiplexing with the wireless master device 34 connected to the host computer 33, and each POS terminal 311 to 31n can perform data communication with the host computer 33 in real time without interruption. it can. That is, the wireless slave devices 321 to 32n and the wireless master device 34 shift the carrier wave by ¼π by the digitally encoded voice signal and digital data signal.
dri Phase Shift Keiting) Modulates and wirelessly transmits voice and data.

Further, the wireless slave devices 321 to 32n and the wireless master device 3
4 can make a voice call using the handsets 48 and 59.
Further, the wireless slave devices 321 to 32n and the wireless master device 34 can perform voice communication with the other party on the public line through the line connection device 35 by the handset 48, 59. Therefore, between the POS terminals 311 to 31n and the host computer 33, and between the POS terminals 311 to 31n and the host computer 33.
Voice and business can be quickly contacted by voice to improve the practicality.

Further, since the electromagnetic wave shield material 63 is attached to the glass window or door portion of the store 62, it is less susceptible to mutual influence with other radio stations and noise interference, and system reliability can be improved and frequency can be improved. Can also contribute to the effective use of.

In addition, although the above-mentioned embodiment describes the one in which the present invention is applied to the POS system, the present invention is not limited to this.

[0024]

As described in detail above, according to the present invention, data communication can be performed in real time without interruption, and voice communication between a terminal and a host computer or from the terminal via a public line is possible. Therefore, it is possible to provide a wireless communication device capable of making quick contact and improving practicality.

[Brief description of drawings]

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

FIG. 2 is a block diagram showing the configuration of a wireless slave device according to the embodiment.

FIG. 3 is a block diagram showing a configuration of a wireless master device in the embodiment.

FIG. 4 is an external view of a store in the embodiment.

FIG. 5 is a block diagram showing a conventional example.

FIG. 6 is a block diagram showing a configuration of a wireless slave device of the conventional example.

FIG. 7 is a block diagram showing a configuration of a wireless master device of the conventional example.

[Explanation of symbols]

311-31n ... POS terminals, 321-32n ... wireless slave devices, 33 ... host computer, 34 ... wireless master devices.

Claims (1)

[Claims] 1. A radio, which modulates a carrier wave by a digitally encoded voice signal and digital data signal to wirelessly transmit voice and data, is connected to a terminal and a host computer that manages the terminal, and A wireless communication device, wherein the wireless device is connected to a public line directly or via a line connection device, and wireless communication of voice and data is performed between the wireless device on the host computer side and the wireless device on the terminal side.