JP2000078050A - Portable radio equipment and order data management system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily operate equipment, to enhance operability and to prevent interference between antennas by optimizing diversity effects of the respective antennas in states where two pieces constituting a case are closed and maximally opened. SOLUTION: The antenna 26 is arranged in the tip side end part of the second piece 22 by positioning its center at the position of a left distance l1 from the center of a hinge mechanism 23 and the antenna 27 is arranged in the tip side end part of the first piece 21 by positioning its center at the right distance l2 from the center of the hinge mechanism. Then, the positions of the antennas are set so as to permit the distance between the antennas in a closed state where the pieces are closed to be (λ/4)×n and also to permit the distance between the antennas in an open state where the pieces are opened to be (λ/4)×m concerning the wave length λ of radio wave which is transmitted and received by the antennas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a portable radio apparatus for performing diversity using two antennas and an order data management system using the portable radio apparatus.

[0002]

2. Description of the Related Art A system for freely performing voice communication and data communication between slave units or between a slave unit and an information terminal in an office or the like using a cordless telephone system has been put to practical use. In particular, the PHS conforms to the "second generation cordless telephone system standard" recommended by the Association of Radio Industries and Businesses (ARIB).
(Personal Handy Phone System) A system having a communication function has been proposed.

FIG. 21 shows an example of a typical cordless telephone system. The base station 1 has a communication function in accordance with the "second generation cordless telephone system standard" recommended by the Radio Industry Association, and this base station. 1 and a portable handset A2, a handset B3, and a handset C4 for performing wireless communication with the other handset via the base station 1. The handset C4 includes, for example, a personal computer 5 Are connected.

In the second generation cordless telephone system, the base station 1 and each of the slave units 2 to 4 are arranged as shown in FIG.
TDMA-TDD (Time Division Multiple Access-Ti
Wireless communication is performed by a method called me Division Duplex. That is, the base station 1 has one slot of 625 μm.
s is divided into eight slots, and slots 1 to 4 are used for base station transmission, and slots 5 to 8 are used for base station reception to perform duplex reception. These 8 slots (62
(5 μs × 8 = 5 ms) is called one frame.

The slot 1 is used for transmitting a control signal of the base station 1 and the slot 5 is used for receiving a control signal of the base station 1 which receives a control signal transmitted from each of the slave units 2 to 4. Slot 2 is for communication from base station 1 to slave unit A2, slot 6 is for communication from slave unit A2 to base station 1, slot 3 is for communication from base station 1 to slave unit B3, and slot 7 is Slot 4 is used for communication from base station 1 to base station 1, slot 4 is used for communication from base station 1 to handset C4, and slot 8 is used for communication from handset C4 to base station 1.
Except for the control signal, the base station 1 can perform duplex communication with the three slave units by time sharing. The control signals of the slots 1 and 5 are wirelessly communicated on the control carrier, and the other slots are wirelessly communicated on the communication carrier.

According to the "Second Generation Cordless Telephone System Standard" recommended by the Radio Industries and Businesses Association, the control carrier is carrier number 12 (1898.45 MHz) for private use.
And carrier number 18 (1900.45 MHz), and the carrier for communication is carrier number 1 (1
895.15 MHz) to carrier number 11 (1898.
15MHz) and carrier number 13 (1898.75MH)
z) to carrier number 37 (1905.95 MHz).

FIG. 23 shows a configuration of one slot, and one slot is composed of 240 bits. As described in the "Standard for Second Generation Cordless Telephone System" recommended by the Radio Industries and Businesses Association, the signal transmission speed is as follows. Since it is 384 Kb / s, one slot is 625 μs. Ramp time 4
The bit is a bit for a transient response, the two bits of the start symbol are bits indicating a start, and the 21 bits of each channel data are
Eight bits are bits for each functional channel, and 16 bits of guard bits are bits for preventing collision between adjacent slots.

FIG. 24 shows a schematic connection sequence when a connection is made from the slave A2 to the slave B3. Note that the slave unit A
The power supply of each of the handset 2 and the handset B3 is in the ON state, and is in the radio wave reach area of the base station 1. In addition, slave unit A
The extension number of “2” is “1”, and the extension number of the slave unit B3 is “2”. When the user of the slave unit A2 inputs a call to the extension number "2" by, for example, key input, the slave unit A2 first wirelessly transmits a link channel establishment request to the base station 1 on a control carrier, and transmits a communication carrier. And requests the base station 1 to allocate a communication slot. When the base station 1 wirelessly transmits the link channel assignment by the control carrier, the slave unit A2 shifts to the assigned communication carrier and synchronizes with the base station 1 in the assigned communication slot.

After the synchronization is established, the slave A2 wirelessly transmits to the base station 1 the extension number "2" of the slave B3 as a communication destination and a call setting in which voice is specified as the service type, and the base station 1 accepts the call setting. Then, a response to the call setting acceptance is wirelessly transmitted from the base station 1. Next, the slave unit A2 wirelessly transmits a secret key for authentication to the base station 1 to perform function setting and the like, wirelessly receives an authentication request including a random number from the base station 1, and authenticates the random number with the authentication key. The calculation result is wirelessly transmitted to the base station 1 as an authentication response. The base station 1 checks the calculation result of the authentication response wirelessly transmitted from the slave unit A2 with the calculation result of the base station 1, determines whether the slave unit A2 is valid, and continues the call connection when the slave unit A2 is valid. Note that the authentication and the function setting in the above procedure can be omitted.

When the authentication result is valid, the base station 1 continues the call connection. Then, the base station 1 first wirelessly transmits an incoming call to the slave unit B3 on the control carrier. Upon receiving the incoming call by radio, the slave unit B3 wirelessly transmits a link channel establishment request to the base station 1 using a control carrier. Then, when the base station 1 wirelessly transmits the link channel assignment on the control carrier, the base station 1 synchronizes with the base station 1 in the communication slot of the assigned communication carrier.

After the synchronization is established, handset B3 wirelessly transmits an incoming call response to base station 1. Hereinafter, similarly to the procedure between the base station 1 and the slave unit A2, the base station 1 and the slave unit B3 perform call setting, call setting acceptance, secret key setting, authentication request, authentication response, and the like.
If the authentication result is valid, the handset B3 wirelessly transmits the call to the base station 1, and the base station 1 wirelessly transmits the call to the handset A2 to notify that the handset B3 is being called. Then, a ringing ring back tone sounds in the child device A2.
In this state, when the user of the slave unit B3 goes off-hook, a response is wirelessly transmitted from the slave unit B3 to the base station 1, a response is wirelessly transmitted from the base station 1 to the slave unit A2, and the slave unit A2 and the slave unit A connection with B3 is established, and a voice call can be made between the child device A2 and the child device B3.

A portable radio telephone using a cordless telephone system that executes a connection sequence in such a procedure is known, for example, from Japanese Patent Laid-Open No. Hei 6-280407. In this publication, as shown in FIG. 25, the housing of the telephone is divided into two pieces 11A and 11B by a surface parallel to the surface, and the first piece 11A and the second piece 11B are opened from a state where they face each other. A liquid crystal display (LCD) 13 for displaying characters on a surface of the first piece 11A facing the second piece 11B, the hinge mechanism 12 having a hinge mechanism 12 so as to be able to stand still at a position up to the state; A key 1 such as a transmission switch or a dial key is provided on a surface of the second piece 11B facing the first piece 11A.
4 and keys 15 for character input are provided. Each of the pieces 11A and 11B is provided with an antenna 16 and 17, respectively, and has a diversity function of selecting one of the antennas 16 and 17 in accordance with a reception state and performing transmission and reception.

According to the publication, the surface of the first piece 11A facing the second piece 11B is used as an indicator, and keys are arranged on the surface of the second piece 11B facing the first piece 11A. Thus, the size of the liquid crystal display 13 can be increased and each key can be enlarged to improve operability. If the reception state in the state where the first piece 11A and the second piece 11B are superimposed is poor, the first piece 11A and the second piece 11B are opened,
By using it in accordance with the best reception state, wireless reception can be performed stably.

[0014]

However, according to the publication, when the reception state is poor, the user of the telephone adjusts the opening degree of the first piece 11A and the second piece 11B while watching the reception state. Therefore, there is a problem that the work for adjustment is troublesome and the usability is poor. In addition, when the reception state is improved in a state where the opening angle of the first piece 11A and the second piece 11B is 90 degrees or less, a finger is put in a narrow space and the keys 14, 1 are inserted.
5, the key operation becomes extremely troublesome, and the viewing angle with respect to the liquid crystal display 13 becomes narrow, so that it is difficult to confirm the display. Further, depending on the arrangement of the antennas in each piece, there is a possibility that the reception condition may be deteriorated due to the influence of the user's hand, or the antennas may be too close to interfere with each other.

According to the first to third aspects of the present invention, the antenna is constituted by two pieces for opening and closing the housing, and the antenna is arranged on each piece. The antenna is arranged so that the effect of diversity of each antenna can be optimized in the two states of opening at an angle, so that the user can operate the two pieces according to the use state without being conscious of the reception state at the time of work. The present invention provides a portable wireless device that is easy to handle, can improve operability, and can reliably prevent interference between two antennas, by simply selecting two states, that is, close or maximum open.

The inventions according to claims 2 and 3 further provide a portable radio apparatus capable of minimizing the influence of the user's hand on the antenna and preventing deterioration of the reception state due to the influence of the hand as much as possible.

According to a fourth aspect of the present invention, there is provided an order data management system for inputting order information using a portable wireless device and wirelessly communicating with a wireless base station in accordance with a cordless telephone connection procedure. Consists of two pieces that open and close the housing, and each piece has an antenna, and the effect of diversity of each antenna is optimal in two states: closing the two pieces or opening it at a specific angle of 90 degrees or more So that the user of the portable wireless device can select only two states of closing or maximally opening two pieces according to the use state without being conscious of the reception state at the time of work. An order data management system that is easy to handle, can improve operability, and can reliably prevent interference between two antennas of a portable wireless device. To provide a beam.

According to a fifth aspect of the present invention, there is provided an order data management system for inputting order information using a portable wireless device and wirelessly communicating with a wireless base station in accordance with a cordless telephone connection procedure. Is also
Provided is an order data management system capable of minimizing influence of a user's hand on an antenna and preventing deterioration of a reception state due to the influence of a hand as much as possible.

[0019]

According to the first aspect of the present invention,
The housing is divided into two pieces, these pieces are made openable and closable by a hinge mechanism, antennas for transmitting and receiving radio waves are arranged in each piece, and one of the antennas is selected according to the transmission and reception state, and a portable wireless communication is performed. In the device, each antenna transmits and receives radio waves of wavelength λ, and in the closed state where the pieces overlap, the distance between the antennas is approximately λ /
4 × n (where n is a natural number), and in the open state where each piece is opened at a specific angle of 90 ° or more, the interval between the antennas is approximately λ / 4 × m (where m is a natural number). The portable wireless device is arranged as follows.

According to a second aspect of the present invention, in the portable wireless device according to the first aspect, a hinge function is provided at a right or left end of the case when the case is held by hand for performing a wireless communication operation. Is provided to open each piece to the left and right, and each antenna is arranged at the tip end side of each piece.

According to a third aspect of the present invention, in the portable wireless device according to the first aspect, an end portion on a front end side or a rear end side of the case when the case is held by hand for performing a wireless communication operation. And a hinge function is provided so that each piece is opened up and down, and when each piece is closed, each antenna is arranged at one end in the vertical direction of the housing. .

According to a fourth aspect of the present invention, there is provided a system control device for managing order information, a POS terminal device for managing sales information, a notifying means for notifying order information, and connection of a cordless telephone by inputting order information. A portable wireless device that performs wireless communication according to a procedure, and a wireless base station that wirelessly communicates according to a connection procedure between the portable wireless device and a cordless telephone. After the order information from the portable wireless device is received by the wireless base station, the system control device In the order data management system in which the POS terminal manages the sales information obtained based on the order information, and the sales information obtained based on the order information, the portable wireless device divides the housing into two pieces. Each piece is made openable and closable by a hinge mechanism, and antennas for transmitting and receiving radio waves are arranged on each piece,
One of the antennas is selected according to the transmission / reception state to perform wireless communication. Each antenna transmits / receives a radio wave of wavelength λ, and when the pieces are overlapped, the interval between the antennas is approximately λ / 4 × n. (However, n is a natural number), and when each piece is opened at a specific angle of 90 degrees or more, the antennas are arranged so that the interval between the antennas is approximately λ / 4 × m (where m is a natural number). In the order data management system.

According to a fifth aspect of the present invention, there is provided the order data management system according to the fourth aspect, wherein the portable wireless device has a right or left side of the case when the case is held by hand for performing a wireless communication operation. Are provided with a hinge function at their ends to open each piece to the left and right, and each antenna is arranged at the tip side end of each piece.

According to a sixth aspect of the present invention, in the order data management system according to the fourth aspect, the portable wireless device is arranged such that when the case is held by a hand for carrying out a wireless communication operation, the portable radio apparatus has the front end side or the case. A hinge function is provided at the rear end to open each piece up and down, and each antenna is located at one end in the vertical direction of the housing when each piece is closed. It is.

[0025]

Embodiments of the present invention will be described with reference to the drawings. (First Embodiment) In this embodiment, a portable radio apparatus conforming to the "second generation cordless telephone system" recommended by the Radio Industry Association will be described.

As shown in FIGS. 1 to 3, a vertically long casing having a substantially rectangular front surface and a predetermined thickness is divided into two pieces, a first piece 21 and a second piece 22. The first piece 21 and the second piece 22 are connected to each other by a hinge mechanism 23 on the right side so as to be openable and closable, and the first piece 21 is moved from the closed state shown in FIG.
It can be opened and closed to the open state. Then, in the open state, the rotation of the first piece 21 is prevented when the first piece 21 is opened by about 180 degrees by the stopper. The open state of the first piece 21 is not limited to 180 degrees, but may be set to a specific angle of 90 degrees or more, such as 120 degrees or 150 degrees. A display 2 constituted by, for example, a liquid crystal display or the like on the inner surface of the second piece 21
4, and a press-type key 25, for example, is arranged on the inner surface of the first piece 22. The display 24
May be a touch panel display.

FIG. 2 is a view showing an open state in a direction in which the user actually uses the portable radio device. The center of the open state, that is, a hinge mechanism, is provided at the tip end of the second piece 22. The center of one antenna 26 is located at a distance l1 to the left from the center of 23, and the tip end of the first piece 21 is located at a distance l2 to the right from the center of the hinge mechanism 23. Another antenna 27
The center is located. The size of the first and second pieces 21 and 22 from the front end to the rear end and the left and right sizes are the same. Therefore, in this open state, the distance lo1 between the antennas 26 and 27 is lo1 = l
1 + l2.

As shown in FIG. 3, each of the pieces 21 and 22 has two members 21a, 21b and 22a, respectively.
The key 25 is arranged on the member 21b, and the display 24 is arranged on the member 22b. Then, the antenna 26 is provided so as to be built in the second piece 22, and the antenna 27 is provided so as to be built in the first piece 21. Specifically, as shown in FIG.
Denotes a chip dielectric antenna, which is mounted on a printed circuit board 28 provided in a member 22a by soldering.
The member 22b is built in by laminating and fixing the member 22b on 2a. The antenna 27 is also formed of a chip dielectric antenna, and is mounted on a printed circuit board provided in the member 21a by soldering, and the member 21b is laminated and fixed on the member 21a to be built therein. ing.

This portable radio device is a radio communication industry (ARI)
B) As described in the recommended “second generation cordless telephone system standard”, the 1.9 GHz band (wavelength λ
Is about 15cm), so each antenna 2
6 and 27 are square antennas each having a side of about 10 mm. FIG. 1 is a view showing a closed state in which the pieces 21 and 22 of the portable wireless device are closed. In this closed state, the distance lc1 between the antennas 26 and 27 is lc1 = l1−l2.

The distance lo1 between the antennas 26 and 27 in the open state is (λ / λ) that is １ ／/ 4 of the wavelength λ of the radio wave transmitted and received by the antennas 26 and 27.
4) × m (where m is a natural number). Further, the distance lc1 between the antennas 26 and 27 in the closed state.
Has a relationship of (λ / 4) × n (where n is a natural number). For example, when m = 4 and n = 2, λ is about 1
Since it is 5 cm, lo1 = l1 + l2 = (λ / 4) × 4 (1) From the relationship of lc1 = l1-l2 = (λ / 4) × 2 (2), l1 = (3/4) λ 11 cm, l2 =
(1/4) λ is 4 cm.

Generally, when a radio wave is reflected by an object, the phase of the radio wave becomes 1
In general, the reception state at a certain point is a state in which radio waves from various directions are combined, and the radio waves are strengthened or weakened at a distance of about an integral multiple of (λ / 4). It is known to Therefore, the interval between the antenna 26 and the antenna 27 becomes an integral multiple of (λ / 4) in both the open state and the closed state.
It is very likely that either antenna will perform good reception.

FIG. 5 is a block diagram showing a circuit configuration of the portable radio apparatus. The quadrature modulator 31, the first mixer 32, the transmission amplifier 33, the transmission / reception switch 34, and the antenna 2
6, 27, an antenna switch 35, a receiving amplifier 36, a second mixer 37, an intermediate frequency signal generator (IF generator) 3
8 and Synthesizer 39 by the Radio Industry Association (ARI)
B) The wireless transmission / reception unit 40 for performing wireless communication according to the recommended "second generation cordless telephone system standard" is formed. Further, a π / 4 shift QPSK modulation / demodulation unit 41 for modulating and demodulating data, a channel codec unit 42 for associating data with a signal of each slot configured in a time division duplex system, and a PH code for communicating unrestricted digital information.
S Internet Access Forum (PIAFS) recommended "PHSInternet Access For
um Standard (PIAFS) specification ", a PIAFS control unit 43 for performing transmission control in accordance with a procedure, a voice input unit 44 including a microphone, a voice output unit 45 including a speaker, and the like. The audio codec unit 46 converts the analog audio signal into a digital signal, or converts the digital audio signal from the channel codec unit 42 into an analog audio signal, a buzzer 47 that informs a user of an incoming call at the time of an incoming call, the display 24, A key input unit 4 for inputting the keys 25 and the like
8, a terminal interface 49 for connecting to a personal computer, etc., a battery 50 serving as a power supply, a base station registration storage unit, and the like, and a control unit 51 for controlling the entire apparatus is provided.

The antenna 27 and the key input unit 4
8 is arranged on the first piece 21, and other circuit components are arranged on the second piece 22. Thus, in this device, the antenna 27, the key 25, and the key input unit 48 are arranged on the first piece 21, and the second piece 2
2, the antenna 26, the display 24, the relatively heavy battery 50, and most of the other circuit components are arranged, so that the second piece 22 is heavier than the first piece 21. ing.

Therefore, as shown in FIG.
When this device is used with the device 22 closed, the user will have a portion indicated by a dashed line A1 in the figure.
As shown in FIG. 2, when the apparatus is used in a state where the pieces 21, 22 are opened, the user has a portion indicated by a chain line A2 in the figure.

FIG. 6 is a diagram for explaining an example of the diversity timing of this device. That is, the control section 51 has a function of monitoring the reception level of the demodulated signal received from the π / 4 shift QPSK modulation / demodulation section 41. Then, the control unit 51 sets the antenna switch 35 in advance.
Is set to the antenna 26 side.

When the reception level of the monitored demodulated signal exceeds a predetermined value, the control unit 51 sets the time at this time to 0 and stores the reception level LB1 at the antenna 26 at the time t1. The antenna switch 35 is switched to the antenna 27 side. Next, at time t2, the reception level LB2 at the antenna 27 is stored. And
The two stored reception levels LB1 and LB2 are compared. If the reception level LB1 is higher than the reception level LB2, the antenna switch 35 is returned to the antenna 26 side. If the reception level LB1 is lower than the reception level LB2, the antenna switch 35 is left as it is. Set to 27 side.

As described above, the distance l0 between the antennas 26 and 27 in the open state in which the two pieces 21 and 22 are opened by approximately 180 degrees is given by (λ) at the wavelength λ of the radio wave transmitted and received by the antennas 26 and 27. / 4) × m (where m is a natural number), and each antenna 2 in a closed state in which the two pieces 21 and 22 are closed together.
Since the distance lc1 between the antennas 26 and 27 is in the relationship of (λ / 4) × n (where n is a natural number), the distance between the antennas 26 and 27 is always (λ) in both the open state and the closed state. /
This is a natural number multiple of 4), and the effect of diversity can be optimized. Thereby, the user only has to select two states of closing or opening the two pieces 21 and 22 at the maximum according to the use state of the apparatus without being conscious of the reception state when working with the apparatus, Therefore, it is not necessary for the user to adjust the opening degree of the two pieces in consideration of the reception state, and the handling can be simplified. Moreover, since each piece is opened by approximately 180 degrees in the open state, the operation of the key 25 can be facilitated and the operability can be improved.
Also, interference between the two antennas can be reliably prevented.

When the pieces 21 and 22 are used in a closed state, the user has a portion A1 in FIG. 1, and the pieces 21 and 22 are used in an open state. In this case, the user has a portion A2 in FIG. 2, whereas the antennas 26 and 27 are located at the distal ends of the pieces 21 and 22 remote from the hand. The influence of the user's hand on the antenna can be reduced as much as possible, and the deterioration of the reception state due to the hand can be prevented as much as possible.

(Second Embodiment) This embodiment is different from the first embodiment in that
"The 2nd generation cordless telephone system" recommended by the Radio Industry Association
A modification of the portable wireless device conforming to the standard will be described. FIG.
As shown in FIG. 8, a first piece 211 on which the key 25 is arranged and a second piece 2 on which the display 24 is arranged
21 with respect to the first piece 211.
Is shorter than the tip of the second piece 221 by a length l, and a hinge mechanism 231 is provided at the right end of the housing, and the first piece 211 is moved by the hinge mechanism 231. Like the above-described first embodiment, the second piece 221 can be opened and closed left and right.

In this embodiment, the antenna 271, the key 25, and the key input unit are disposed on the first piece 211, and the second piece 221 is disposed on the first piece 211, as in the first embodiment. Antenna 261, Display 2
4. Since most of the relatively heavy batteries and other circuit components are arranged, the weight of the second piece 221 is heavier than that of the first piece 211.

Then, an antenna 261 is arranged at the tip end of the second piece 221 and the first piece 21
The antenna 271 is arranged at the end of the front end of the antenna 1. That is, the antenna 261 is disposed with its center located at a distance l3 from the center of the hinge mechanism 231 to the left, which is the center when the pieces 211 and 221 are opened, and the antenna 271 is connected to the hinge mechanism 231. The center is located at a distance l4 from the center of 231 to the right, and the center of the antenna 261 and the antenna 271 is arranged at a distance lv1 from the tip of each piece. The left and right sizes of the first and second pieces 211 and 221 are the same.

Therefore, when the pieces 211 and 221 are opened as shown in FIG.
The distance lo2 between

(Equation 1)

When the pieces 211 and 221 are closed as shown in FIG.
The distance lc2 between the antennas 271 and 271 is the same as the distance from the center of the hinge mechanism 231 of each of the antennas 261 and 271 as in the open state.

(Equation 2)

Is as follows.

Each antenna 26 in the open state is
The distance lo2 between the antennas 261 and 271 is
Λ / which is a quarter of the wavelength λ of the radio wave transmitted and received by
4 is (λ / 4) × m (where m is a natural number). In addition, each antenna 26 in the closed state
The distance lc2 between the first and the second 271 is (λ / 4) × n (where n
Is a natural number). For example, m = 3, n =
When it is set to 1, lc2 becomes (3/4) λ, and lo2 = (1
/ 4) λ.

Therefore, when the wavelength λ and the distance lv1 are given, the above equation (3) satisfies (λ / 4) × m, and
If l3 and l4 are set so that the equation (4) satisfies (λ / 4) × n, the distance between the antennas 261 and 271 in both the open state and the closed state is a natural number of (λ / 4). It is possible to optimize the effect of the diversity, so that the user can change the two states of closing or opening the two pieces 211 and 221 according to the use state of the apparatus without being conscious of the reception state. Only selection is required, handling is simple, operability can be improved, and interference between the two antennas can be reliably prevented.

When each of the pieces 211 and 221 is used in an open state, the user has a portion A3 in FIG. 7, and each of the pieces 211 and 221 is used in a closed state. In this case, the user will have a portion A4 in FIG.
Since 71 is arranged at a position distant from the position of the hand, the influence of the user's hand on the antenna can be reduced as much as possible, and the deterioration of the reception state due to the hand can be prevented as much as possible.

(Third Embodiment) This embodiment is similar to the third embodiment.
"The 2nd generation cordless telephone system" recommended by the Radio Industry Association
A modification of the portable wireless device conforming to the standard will be described. FIG.
As shown in FIG. 10, a hinge is provided at the rear end of the housing including a first piece 212 on which the key 25 is disposed and a second piece 222 on which the display 24 is disposed. A mechanism 232 is provided, and the first piece 212 can be freely opened and closed in a vertical direction with respect to the second piece 222 by the hinge mechanism 232. That is, in order to change from the closed state in FIG. 10 to the open state in FIG. 9, the first piece 212 is opened such that the first piece 212 is tilted forward.
Then, an antenna 262 is arranged at the front end of the second piece 222, and an antenna 272 is arranged at the rear end of the first piece 212.

In this embodiment, similarly to the above-described first embodiment, the antenna 272, the key 25, and the key input unit are disposed on the first piece 212, and the second piece 222 is provided with the antenna 272. Antenna 262, display 2
4. Since most of the relatively heavy batteries and other circuit components are arranged, the weight of the second piece 222 is heavier than that of the first piece 212.

The center of the antenna 262 is located at a distance l5 from the right end of the second piece 222 at the distal end of the second piece 222, and the center is located at a distance lv2 from the center of the hinge mechanism 232. Is located. Further, the antenna 272 is centered at the rear end of the first piece 212 at a distance l6 from the right end of the piece 212, and at the same distance l6 from the center of the hinge mechanism 232.
The center is located at the position of v2. The size from the front end to the rear end of each of the pieces 212 and 222 and the left and right sizes are the same.

Therefore, when the pieces 212 and 222 are opened as shown in FIG.
The distance between lo3 is

(Equation 3)

When the pieces 212 and 222 are closed as shown in FIG.
The distance lc3 between 2,272 is as follows: lc3 = l5-l6 (6)

Each antenna 26 in the open state is
The distance lo3 between the antennas 262,2
Λ / which is a quarter wavelength of the wavelength λ of the transmitted / received radio wave.
4 is (λ / 4) × m (where m is a natural number). In addition, each antenna 26 in the closed state
The distance lc3 between 2,272 is (λ / 4) × n (where n
Is a natural number).

Therefore, when the wavelength λ and m and n are given, the above equation (3) satisfies the relationship of (λ / 4) × m,
If l5, l6 and lv2 are set so as to satisfy the relationship of lc3 = l5-l6 = (λ / 4) × n, the distance between the antennas 262 and 272 in both the open state and the closed state is ( λ / 4), and the effect of the diversity can be optimized, so that the user can recognize the two pieces 21 according to the use state of the apparatus without being conscious of the reception state.
It is only necessary to select two states, that is, closing and opening the 2,222, and it is easy to handle, operability can be improved, and interference between the two antennas can be reliably prevented.

When the pieces 212 and 222 are used in an open state, the user has a portion A5 in FIG. 9, and the pieces 212 and 222 are used in a closed state. In this case, the user will have a portion A6 in FIG.
Since 272 is located away from the hand,
The influence of the user's hand on the antenna can be reduced as much as possible, and the deterioration of the reception state due to the hand can be prevented as much as possible.

(Fourth Embodiment) This embodiment is similar to the fourth embodiment.
"The 2nd generation cordless telephone system" recommended by the Radio Industry Association
A modification of the portable wireless device conforming to the standard will be described. FIG.
As shown in FIG. 1 and FIG. 12, a hinge composed of a first piece 213 on which a key 25 is arranged and a second piece 223 on which a display 24 is arranged is attached to a front end of the casing. A mechanism 233 is provided, and the hinge mechanism 233 is provided.
Thereby, the first piece 213 can be opened and closed vertically with respect to the second piece 223. That is, FIG.
To change from the closed state to the open state shown in FIG.
Is turned upward from the near side to open. Then, an antenna 263 is arranged at the front end of the second piece 223, and an antenna 273 is arranged at the rear end of the first piece 213.

In this embodiment, similarly to the above-described first embodiment, an antenna 273, a key 25, and a key input unit are arranged on the first piece 213, and the second piece 223 is Antenna 263, display 2
4. Since most of the relatively heavy batteries and other circuit components are arranged, the weight of the second piece 223 is heavier than that of the first piece 213.

The antenna 263 is centered at the distal end of the second piece 223 at a distance of l7 from the right end of the piece 223 and at the distance lv4 from the center of the hinge mechanism 233. Is located. The antenna 273 has a center at a rear end of the first piece 213 at a distance l8 from the right end of the piece 213 and a center at a distance lv3 from the center of the hinge mechanism 233. Is located. In addition, the size from the front end to the rear end and the left and right sizes of the pieces 213 and 223 are the same.

Therefore, each of the pieces 213 and 223 is
In the open state as shown in FIG.
The distance lo4 between three is

(Equation 4)

When the pieces 213 and 223 are closed as shown in FIG.
The distance lc4 between 3,273 is

(Equation 5)

Is obtained.

Each antenna 26 in the open state is
The distance lo4 between the antennas 263 and 2
Λ / which is a quarter of the wavelength λ of the transmitted / received radio wave.
4 is (λ / 4) × m (where m is a natural number). In addition, each antenna 26 in the closed state
The distance lc4 between 3,273 is (λ / 4) × n (where n
Is a natural number).

Therefore, when the wavelength λ and m and n are given, the above equation (7) satisfies the relationship of (λ / 4) × m,
Further, if l7, l8 and lv3, lv4 are set so that the above equation (8) satisfies the relationship of (λ / 4) × n, the distance between the antennas 263 and 273 in both the open state and the closed state is obtained. Can be made a natural number multiple of (λ / 4), and the effect of the diversity can be optimized, so that the user can recognize the two pieces 21 according to the use state of the apparatus without being conscious of the reception state.
It is only necessary to select two states, that is, the state where the 3,223 is closed or the maximum state is opened, the handling is simple, the operability can be improved, and the interference between the two antennas can be reliably prevented.

When the pieces 213 and 223 are used in the open state, the user has a portion A7 in FIG. 11, and the pieces 213 and 223 are used in the closed state. In this case, the user will have a portion A8 in FIG.
3, 273 is disposed at a position away from the hand, so that the influence of the user's hand on the antenna can be reduced as much as possible, and the deterioration of the reception state due to the hand can be prevented as much as possible.

(Fifth Embodiment) This embodiment describes an order data management system using a portable radio apparatus having the configuration shown in FIGS. FIG. 13 is a block diagram showing the configuration of the entire order data management system. In a restaurant B of a restaurant, a POS (Position) which is arranged in a checkout counter, which is a settlement unit, and stores and manages sales information in a storage unit.
int of Sales) terminal 61, a system controller 62 for managing menu information, order information and menu information and controlling the entire system, and arranged in a kitchen to display order information and input completion or deletion of order information. Display / input device 63, which is also arranged in the kitchen,
A printing device 64 for printing order information and invoices; a plurality of portable wireless devices 65 for inputting order information and wirelessly transmitting;
A plurality of wireless base stations 66 that wirelessly communicate with each portable wireless device 65 using a full-duplex wireless link, and the POS terminal 61, the system control device 62, the display / input device 63, the printing device 64, and the Internet A communication control device 68 connected by a representative wired network 67 and connected to each of the wireless base stations 66 is provided. Note that different wired network addresses are set for the respective devices.

The communication control device 68 also includes a communication line 69 such as an analog line, a digital line, or a dedicated line.
By ISDN (Integrated Services Digital Netw
ork) network, PSTN (Public Switched Telephone Netwo)
rk) network or a PHS network, etc., connected to a public network / dedicated line 70, and connected to the public network / dedicated line 70 via a personal computer 71 outside the store or a PHS carrier wireless base station 72 for portable radio communication. It can communicate with the device 73.

Each of the portable wireless devices 65 is shown in FIGS.
14, a housing having a substantially rectangular front surface and a vertically long predetermined thickness is formed by combining a first piece 651 and a second piece as shown in FIG. Divided into two pieces, a piece 652, and each of the pieces 651, 6
52 is connected to the right side by a hinge mechanism 653 so as to be openable and closable, and the first piece 651 is connected to the second piece 652.
Can be opened and closed from a closed state to an open state opened by about 180 degrees.

A touch panel display 654 composed of, for example, a liquid crystal display or the like is arranged on the inner surface of the second piece 652, and a pressing key 655 is arranged on the inner surface of the first piece 651. The key 655
There are provided a numeric key for inputting numerical values, an order key for specifying an order information input mode, an inquiry key for specifying an inquiry mode, a communication key for specifying a communication mode, a power key, and the like. Keys required for operation in each mode are displayed on the display 654. By touching these keys, the key input unit performs key input processing.

The center of one antenna 656 is located at the distal end of the second piece 652 at a distance 11 from the center of the hinge mechanism 653 to the left, and the first piece 651 The center of another antenna 657 is arranged at a position on the distal end side at a distance l2 to the right from the center of the hinge mechanism 653. The size of the first and second pieces 651, 652 from the front end to the rear end and the left and right sizes are the same.

Therefore, the first piece 652 is
When the piece 651 is opened approximately 180 degrees, the distance lo1 between the antennas 656 and 657 is lo1 = l1 + l2.
Becomes In a closed state in which the first piece 651 is closed to the second piece 652, the distance lc1 between the antennas 656 and 657 is lc1 = l1−l2.

Each of the antennas 656 and 657 is a chip dielectric antenna and is mounted on a printed circuit board provided in the second piece 652 or 651 by soldering. Then, each antenna 656, 657 in the open state
The distance lo1 between the antennas 656 and 657 has a relationship of (λ / 4) × m (where m is a natural number) with respect to λ / 4 which is １ ／ of the wavelength λ of the radio wave transmitted and received by each of the antennas 656 and 657. Has become. In addition, each of the antennas 656, 65 in the closed state
The distance lc1 between 7 has a relationship of (λ / 4) × n (where n is a natural number).

Each of the portable radio devices 65 has a circuit configuration similar to that of FIG. 5, and the radio transmission / reception unit conforms to the radio standard of the RCR STD28 second generation cordless telephone system. The control unit has both a wireless communication protocol for performing wireless communication with the wireless base station 66 and a wireless communication protocol for connecting to the PHS carrier wireless base station 72 outside the store. It can be used both inside and outside stores. And the second
Most of the battery and the circuit portion are stored in the piece 652, and the weight is heavier than that of the first piece 651.

Each of the portable radio devices 65 transmits an order information input by a clerk to the radio base station 66 by radio, and transmits a command to the system control device 62 via the radio base station 66. In addition, it has an inquiry function for inquiring current order data, sales data, menu data, etc., and a communication function for transmitting and receiving voices, images, and messages to other portable wireless devices, the system control device 62 or the POS terminal 61. ing.

As shown in FIG. 15, the radio base station 66 includes a quadrature modulator 661, a first mixer 662, a transmission amplifier 663, a transmission / reception switch 664, and an antenna 66.
5, reception amplifier 666, second mixer 667, intermediate frequency signal generation unit (IF generation unit) 668, and synthesizer 66
9 is provided with a wireless transmission / reception unit 670 for performing wireless communication according to the “second generation cordless telephone system standard” recommended by the Association of Radio Industries and Businesses (ARIB).

Further, a π / 4 shift QPSK modulation / demodulation section 671 for modulating and demodulating data, a channel codec section 672 for associating data with a signal of each slot constituted by a time division duplex system, and communicating unrestricted digital information. PHS Internet Access Forum (PIA
FS) Recommended "PHS Internet Acces"
s Forum Standard (PIAFS) Specification "
73, a wired interface 674 connected to the communication control device 68 via a wire, a storage unit for registering the portable wireless device 65, and the like are provided, and a control unit 675 for controlling each unit is provided. Note that the wireless base station 66 may also be configured to provide a plurality of antennas and have antenna switching means to perform diversity, similarly to the portable wireless device 65.

The control unit 675 of the wireless base station 66 registers the portable wireless device 65 in the storage unit in advance, and according to the “second generation cordless telephone system standard”, the portable wireless device 6
5 can perform wireless communication. The storage unit of the control unit 675 further stores both the extension number and the network address of the portable wireless device 65, and when the wireless base station 66 wirelessly communicates with the portable wireless device 65, the extension number is used. Communicate and wired network 6
7, a POS terminal 61, a system controller 62,
When communicating with the display / input device 63 and the printing device 64, the communication is performed with a network address via the communication control device 68.

As shown in FIG. 16, the communication control device 68 includes a device control unit 681 for controlling the entire device, and a radio base station control unit 68 for connecting to the radio base station 66.
2. A network controller 683 for connecting to the POS terminal 61 or the system controller 62 via a wired network.
And a communication line control unit 684 for connecting to the communication line 49.

The system controller 62 has basically the same hardware configuration as a personal computer or a workstation, and as shown in FIG.
A control unit 621 centered on the OM and RAM, a storage unit 622 for storing data, a network connection unit 623 connected to the wired network 67, a display unit 624 including a display such as a CRT, and an input unit 625 such as a keyboard and a mouse. It consists of.

The storage unit 622 stores programs for performing basic operations, a portable wireless device 65 capable of wireless communication, store information such as menu information, order information up to now, table information, sales information, and employee information. All or part of necessary information is stored, and such information is updated and added as needed. The storage unit 622 includes a storage unit such as a hard disk, a floppy disk, or a memory card.

FIG. 18 is a view showing a display example of the display / input device 63. In the first line, the table number is displayed, in the second line, the number of people is displayed, and in the third and subsequent lines, the order contents are displayed. Is displayed. If the number of persons is 0, it indicates that the table is empty, and if it is 1 or more, it indicates that there is a customer. The contents of the order from the third line are the wireless portable terminal 45.
When the order is transmitted, the character of the order is displayed, and when the order is completed in the kitchen, the order character is surrounded by a frame a, and when it is arranged, the character is changed to a white character display b. . Then, when the payment of the customer is completed at the POS terminal 41, the number of customers becomes zero, and the order contents are erased.

Next, a series of operations of the order data management system when menu information is stored in the system control device 62 and menu information is not set in the portable wireless device 65 will be described. As shown in FIG. 20, when a customer enters a store in S1, a clerk having the portable wireless device 65 guides the customer to a table in S2. Then, the clerk inputs the table number and the number of people to the portable wireless device 65 in S3. This input information is in accordance with the procedure of "2nd generation cordless telephone system standard",
The data is transmitted to the system controller 62 via the wireless base station 66 and the communication controller 68 by wireless transmission. When the transmission is completed, the system control device 62 updates the order information in S4, and updates the display contents of the display / input device 63 in S5. In S6, the clerk gives the menu to the customer, and the customer considers the menu.

After a while, the clerk goes to the order of the customer in S7, selects the order with the portable radio device 65, and in S8, the system controller 62 sends the order to the portable radio device 6.
5, the menu information is transmitted in accordance with the procedure of the similar telephone system standard. In S9, the clerk inputs the order from the customer according to the transmitted menu. This order information is sent to the system controller 62 via the wireless base station 66 and the communication controller 68 by wireless transmission according to the procedure of the similar telephone system standard.

The system controller 62 updates the order information in S10, and updates the display contents of the display / input device 63 in S11. Further, in S12, the printing device 64
To print the order information and the bill. In S13, the clerk in the kitchen starts to create an order product by viewing the display on the display / input device 63 or the print content of the order information on the printing device 64. When the order product is completed, completion of the order product is input to the display / input device 63 in S14. The input completion information of the order product is sent to the system controller 62, and the system controller 62
To update the order information, and at S16 the display / input device 6
The display contents of No. 3 are updated, and the completion of the order is notified to the corresponding portable wireless device 65 in S17.

When the clerk confirms the completion of the order item, the clerk proceeds to S1
At 8, the customer goes to the kitchen to pick up the ordered product, distributes the meal to the customer concerned, and hands the bill printed by the printing device 64. When the serving is completed, the clerk inputs the completion of the serving to the portable wireless device 65 in S19. This information is wirelessly transmitted to the system controller 62. The system controller 62 updates the order information in S20, and updates the display contents of the display / input device 63 in S21.

Then, after finishing the meal in S22, the customer goes to the POS terminal 61 with the bill and hands the bill to the clerk. The clerk sets the bill number to PO in S23.
Input to the S terminal 61. As a result, the POS terminal 61 displays the order product and the amount, and performs payment processing upon receiving payment from the customer. Then, when the payment is completed, in S24, the POS terminal 61 transmits the adjusted order information to the system control device 62, and the system control device 62 executes the processing in S2.
5, the order information is updated, and the display contents of the display / input device 63 are updated in S26.

The above is a series of operations of the order data management system. Regarding the update of the final order information and the update of the display by the system controller 62, the clerk clears the table in addition to the end of the settlement process by the POS terminal 61. Alternatively, the clerk may input the clearing end information from the portable wireless device 65 after the clearing is completed. Further, here, the menu is transmitted from the system control device 62 to the portable wireless device 65 by the order selection in the portable wireless device 65 when the customer comes to the store and the clerk takes the order, but this is not necessarily limited to this. Instead, the system controller 62 sends the portable wireless device 65 in advance.
The portable wireless device 65 stores the menu information in the internal memory and uses the menu information, and thereafter receives the change information from the system control device 62 only when a menu to be changed is generated. May be partially changed.

FIG. 19 is a view showing an example of the screen of the display 654 of the portable radio apparatus 65. In the ordinary main screen, FIG.
As shown in FIG. 9 (a), a state in which three modes of an order function, an inquiry function, and a communication function can be selected is displayed. On this main screen, an order key of the key 655,
The mode is selected by selecting and operating either the inquiry key or the contact key, or by selecting and touching any of "order", "inquiry", and "contact" on the display 654.

For example, when the “order” mode is selected and touched, the screen is switched to the order screen, and four menus of “table guidance”, “order input”, “serving”, and “clearing” are displayed. Here, for example, when the user selects and touches “table guidance” on the display 654, the screen is switched to a screen for inputting the table number and the number of persons. In this state, the number key of the key 655 is operated to input the table number and the number of persons. The input table number and number information are transmitted to the wireless base station 66.

When “order input” is selected and touched, as shown in FIG. 19 (b), “a, ka, sa,.
Is displayed, and in this state, for example, the display 6
When the first letter of the menu is selected and touched on the menu 54, the menu is displayed. When the menu is further touched, a display such as rice or bread appears, and the screen is gradually switched to a screen for selecting a detailed order.

When "table serving" is selected and touched, a table number input state is entered. In this state, when a table number is input using the numeric key of the key 655, the table order information is transmitted from the system control device 62 to the wireless base station 66. Transmitted to the portable wireless device 65 via the
Receives and displays this. In this state, when the store clerk selects and touches the ordered item, the completion of the serving for the ordered item is transmitted to the system controller 62 via the wireless base station 66.

Further, when "clearing" is selected and touched, a table number input state is entered. In this state, when the table number is input with the numeric key of the key 655, the clearing of the input table number is completed. 66. Also, on the main screen,
When a mode is selected and touched, the screen is switched to an inquiry screen shown in FIG. 19C, and “currently remaining order”, “currently empty table”,
The six menus of “current customer entry order”, “invoice number inquiry”, “current table number inquiry”, and “last table number inquiry” are displayed.

When the user selects and touches “all remaining orders”, all of the information currently displayed on the display / input device 63 is transferred from the system control device 62 to the mobile device via the communication control device 68 and the wireless base station 66. The portable wireless device 65 receives and displays it because it is transmitted to the wireless device 65. When the user selects and touches “currently empty table”, information on the currently empty table is transmitted from the system control device 62 to the portable wireless device 65 via the communication control device 68 and the wireless base station 66. The device 65 receives this and displays it. This allows the clerk to immediately know which table is currently available.

When the user selects and touches “Current customer entry order”, the entry time, table number, and number of persons are entered from the system control device 62 to the communication control device 68 and the wireless base station 6 in the order of entry.
The portable wireless device 65 receives and displays the received message, because it is transmitted to the portable wireless device 65 via the communication device 6. Therefore, it is possible to predict which table will be vacant next based on the entrance time, the serving status, and the like.

When "Invoice number inquiry" is selected and touched, the order information corresponding to the invoice is transmitted from the system controller 62 to the portable wireless device 65 via the communication controller 68 and the wireless base station 66. , Portable wireless device 65
Receives and displays this. This display is used, for example, when there is an inquiry from a customer after the settlement is completed.

When "Current table number inquiry" is selected and touched, a table number input state is entered. In this state, when a table number is input with the numeric key of the key 655, the order information of the current table number is transmitted from the system controller 62. Since transmitted, portable wireless device 65 receives and displays it. When the user selects and touches "Last Table Number Inquiry", the table number is input. When the table number is input with the numeric key of the key 655, the order information and the customer entering the customer in front of the customer of the table number are entered. time,
The store opening time is changed from the system control device 62 to the portable wireless device 65.
Since transmitted, portable wireless device 65 receives and displays it.

When the user selects and touches the "contact" mode on the main screen, the screen is switched to the contact screen, and FIG.
As shown in the table, “manager”, “clerk A”, “clerk B”,
The screen is switched to a screen for inputting the destination of “number input” and the communication method of “voice”, “image”, and “message”. Then, by selecting a contact method with the other party, the screen is switched to a screen according to the selected contact method. For example, when the clerk B selects “manager” as the other party and selects and inputs “voice” as the contact method, the portable wireless device 65 displays the telephone number and voice of the portable wireless device possessed by the “manager”. Make settings, make a call according to the procedure of RCR STD28, and send the "manager" via the radio base station 66.
Is connected to the portable wireless device owned by. As a result, the clerk B and the store manager can communicate by voice. In addition,
The same operation can be performed for connection with other parties and selection of a contact method.

In addition, the portable radio device 65 informs the system controller 62 that the customer has arrived at the table, and the time from when the customer picks up the order from the table to the time when the customer takes out the order and before serving the table. Alternatively, a first or second set time is provided in a period from the time of serving to the end of settlement, and when each set time is exceeded, the system control device 62 sends the portable wireless device 65 and the display / input device 63 to each other. Automatically report overtime. As a result, the clerk can be notified even if he forgets the work,
It can improve the accuracy and efficiency of the clerk's work,
Further, for example, delays in serving meals can be appropriately explained to the customer, and detailed service can be provided without giving the customer discomfort.

The radio specification of RCR STD28 is a second generation cordless telephone standard using a frequency of 1.9 GHz, and is a TDMA-TDD (Time Div
By means of ision Multiple Access Time Division Duplex, one carrier constitutes a 32 kbps full-duplex link with four channels. In addition, other than the voice of the communication function, an automatic response is selected on the receiving side, and a redial is automatically performed during a call. Information communication other than the communication function is assumed to be deemed voice, PIAF
This is performed according to the S (PHS Internet Access Forum Standard) standard.

As described above, a plurality of wireless portable terminals 65 can simultaneously communicate with the wireless base station 66 at a rate of 32 kbps.
Since full-duplex communication can be performed, collision of radio waves, transmission waiting, and the like can be reduced even if the data transmission amount increases. Also,
Even when all communication channels are occupied, the user of the portable wireless device such as a customer service clerk only has to complete the input operation without being aware of this, and the portable wireless device 65 automatically detects when the communication channel is empty. The order information can be transmitted to the system controller 62 wirelessly to complete the order work.

The portable radio device 65 is connected to the radio base station 6.
For example, the portable wireless device 65 transmits the inquiry data to the system controller 6 via the wireless base station 66 before taking the order.
2 and immediately after receiving the customer's order and transmitting the order data to the system controller 62 via the wireless base station 66, the inquiry data for the inquiry request can be wirelessly received. Therefore, the inquiry function can be executed without interfering with the order wireless transmission function, and a larger amount of information can be inquired than before, and the processing time required for wireless transmission can be reduced.

Even when the store owner or store manager is out of the store, the portable wireless device can be used to contact the store clerk's portable wireless device via the business's wireless base station 72. Therefore, it is possible to easily know the sales status and order status of the store from outside and to manage the store from the outside.

Further, since the radio base station 66 has a plurality of full-duplex channels by using the time division duplex system,
The wireless base station 66 can perform wireless communication simultaneously with a plurality of portable wireless devices. Therefore, even if the number of portable wireless devices increases or the wireless transmission rate of each portable wireless device increases and the wireless usage rate increases, there is no frequent occurrence of radio wave collision or transmission waiting.

The portable wireless device 65 is composed of two pieces, a first piece 651 and a second piece 652,
Since the key 655 is arranged on the first piece 651 and the display 654 is arranged on the second piece 652, many keys can be arranged while miniaturizing the whole apparatus. Can be enlarged, and the operability can be improved.

Then, one antenna 656 is arranged at the end of the second piece 652 on the distal end side, and the first piece 651
In the closed state where another antenna 657 is arranged at the end on the distal end side and the first piece 651 is aligned with the second piece 652, each antenna 656, 657
When the distance lc1 between them is λ, the wavelength of the radio wave to be transmitted and received is (λ / 4) × n (where n is a natural number), and the second piece 652 is the first piece. 6
In the open state where the antenna 51 is opened at the maximum of about 180 degrees, the distance lo1 between the antennas 656 and 657 is set so as to have a relationship of (λ / 4) × m (where m is a natural number). The antenna 65 in both the open and closed states.
The distance between 6,657 is always a natural number times (λ / 4), and the effect of diversity can be optimized.

As a result, the user of the portable radio device 65 does not need to be aware of the reception status and can respond to the use status of the device in accordance with the use status of the device.
Only the two states of closing or opening the two pieces 651 and 652 need to be selected, and the handling becomes simple. Further, key operation in an open state is extremely easy, and operability can be improved. Also, interference between the two antennas can be reliably prevented.

Further, when the user operates the portable radio device 65 while holding it, when the user uses the pieces 651 and 652 with the pieces closed, or when the user uses the pieces 651 and 652 with the pieces open, The user will have a heavy second piece 652 and will also have a rear end side of the second piece 652 in operation, so that each antenna 656, 657 can be sufficiently moved from the hand position. Therefore, the influence of the user's hand on the antenna can be reduced as much as possible, and the deterioration of the reception state due to the influence of the hand can be prevented as much as possible.

In this embodiment, an order data management system in a restaurant has been described as an example. However, the present invention is not limited to this. For example, order information of a customer or an orderer can be carried at a retail store or warehouse. Input using a wireless device, thereby informing the order information to a worker who is storing goods and parts, for example, in a warehouse or the like, and using a POS terminal to perform a customer or orderer settlement process. It can also be applied to an order data management system to be performed.

[0108]

According to the first to third aspects of the present invention, in the case where the housing is composed of two pieces for opening and closing, and the antenna is arranged in each piece, each antenna is closed or closed. The antenna is arranged so that the effect of diversity of each antenna can be optimized in the two states of opening to a specific angle of degrees or more, so that the user can respond to the use state without being conscious of the reception state at the time of work Provided is a portable wireless device that requires only selection of two states of closing or opening two pieces, is easy to handle, can improve operability, and can reliably prevent interference between two antennas. it can. Claims 2 and 3
According to the described invention, the influence of the user's hand on the antenna can be reduced as much as possible, and the deterioration of the reception state due to the influence of the hand can be prevented as much as possible.

According to the invention described in claims 4 to 6, in an order data management system for inputting order information using a portable wireless device and performing wireless communication with a wireless base station in accordance with a cordless telephone connection procedure, The device consists of two pieces that open and close the housing, and each piece has an antenna, and the effect of the diversity of each antenna in two states: closing the two pieces or opening it at a specific angle of 90 degrees or more. Since it is arranged so that it can be optimized, the user of the portable wireless device can select only two states of closing or opening two pieces according to the use state without being conscious of the reception state at work. An order data management system that is easy to handle, easy to operate, can improve operability, and can reliably prevent interference between the two antennas of the portable wireless device. It can provide. According to the fifth and sixth aspects of the present invention, in the order data management system for inputting order information using a portable wireless device and wirelessly communicating with a wireless base station in accordance with a cordless telephone connection procedure, Furthermore, the influence of the user's hand on the antenna can be reduced as much as possible, and the deterioration of the reception state due to the influence of the hand can be prevented as much as possible.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention with two pieces closed.

FIG. 2 is a plan view of the embodiment with two pieces opened.

FIG. 3 is an exemplary perspective view showing a state where two pieces are opened according to the embodiment;

FIG. 4 is a partially enlarged view showing an internal configuration of a portion surrounded by a dot-dash line circle in FIG. 3;

FIG. 5 is a block diagram showing a configuration of a circuit unit in the embodiment.

FIG. 6 is a diagram showing an example of diversity timing in the embodiment.

FIG. 7 is a plan view showing a second embodiment of the present invention with two pieces opened.

FIG. 8 is a plan view of the embodiment with two pieces closed.

FIG. 9 is a plan view showing a third embodiment of the present invention with two pieces opened.

FIG. 10 is a plan view of the embodiment with two pieces closed.

FIG. 11 is a plan view showing a fourth embodiment of the present invention with two pieces opened.

FIG. 12 is a plan view of the embodiment with two pieces closed.

FIG. 13 is a block diagram showing a configuration of an order data management system according to a fifth embodiment of the present invention.

FIG. 14 is an exemplary plan view of the portable wireless device in the embodiment with two pieces opened;

FIG. 15 is a block diagram showing a configuration of a circuit unit of the wireless base station according to the embodiment.

FIG. 16 is a block diagram showing a configuration of a circuit unit of the communication control device according to the embodiment.

FIG. 17 is a block diagram showing a configuration of a circuit unit of the system control device according to the embodiment;

FIG. 18 is a diagram showing a display example of the display / input device according to the embodiment.

FIG. 19 is a diagram showing an example of a screen of a display of the portable wireless device in the embodiment.

FIG. 20 is a flowchart for explaining a series of operations of the order data management system in the embodiment.

FIG. 21 is a block diagram showing an example of a cordless telephone system.

FIG. 22 is a diagram showing a time slot of the cordless telephone system.

FIG. 23 illustrates a slot configuration of a cordless telephone system.

FIG. 24 is a diagram showing a schematic connection sequence of the cordless telephone system.

FIG. 25 is a perspective view showing a conventional example.

[Explanation of symbols]

 21 first piece 22 second piece 23 hinge mechanism 26, 27 antenna

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04B 7/26 H04B 7/26 D H04Q 7/38 109M

Claims (6)

[Claims] 1. A housing is divided into two pieces, each of which can be freely opened and closed by a hinge mechanism, and an antenna for transmitting and receiving a radio wave is arranged on each of the pieces, and one of the antennas is selected according to a transmission / reception state. In each of the portable radio apparatuses, the antennas transmit and receive radio waves having a wavelength of λ, and in a closed state in which the pieces overlap each other, the interval between the antennas is approximately λ / 4 × n (where n is (Numerical number), and the distance between the antennas is approximately λ / 4 × m (where m is a natural number) when the pieces are opened at a specific angle of 90 degrees or more. Characteristic portable wireless device. 2. A structure in which a hinge function is provided at a right or left end of the housing when the housing is held by hand for performing a wireless communication operation, and each piece is opened to the left and right, and each antenna is 2. The portable wireless device according to claim 1, wherein the portable wireless device is arranged at a distal end of each of the pieces. 3. A configuration in which a hinge function is provided at an end on a front end side or a rear end side of the housing when the housing is held by hand to perform a wireless communication operation, and each piece is opened up and down.
2. The portable wireless device according to claim 1, wherein each of the antennas is arranged so as to be positioned at one end in a vertical direction of the housing when the respective pieces are closed. 4. A system control device for managing order information, a POS terminal device for managing sales information, a notifying means for notifying order information, and a portable device for inputting order information and performing wireless communication according to a cordless telephone connection procedure. A wireless device, and a wireless base station that wirelessly communicates with the portable wireless device in accordance with a connection procedure between the portable wireless device and a cordless telephone. After the order information from the portable wireless device is received by the wireless base station, the order information is managed by the system control device. In the order data management system, wherein the POS terminal manages the sales information obtained based on the order information, and the sales information obtained based on the order information, the portable wireless device divides a housing into two pieces, Each piece is made openable and closable by a hinge mechanism, and an antenna that transmits and receives radio waves is arranged on each piece, Therefore, one of the antennas is selected for wireless communication. The antennas transmit and receive radio waves of wavelength λ, and when the pieces are overlapped, the interval between the antennas is approximately λ / 4. × n (where n is a natural number), and in an open state in which each of the pieces is opened at a specific angle of 90 degrees or more, the interval between the antennas is approximately λ /
An order data management system characterized by being arranged so as to be 4 × m (where m is a natural number). 5. A portable wireless device is provided with a hinge function at a right or left end of a case when the case is held by hand to perform a wireless communication operation, and each piece is opened to the left and right. 5. The order data management system according to claim 4, wherein each antenna is arranged at a tip end of each of said pieces. 6. The portable wireless device is provided with a hinge function at a front end or a rear end of the case when the case is held by hand for performing a wireless communication operation, and each piece is vertically moved. The order data management system according to claim 4, wherein the order data management system is configured so as to be open, and each antenna is located at one end of the casing in the up-down direction when the pieces are closed.