JPH1141368A - Portable telephone radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide portable telephone radio equipment which reduces losses caused by conventional coaxial cables and switches, can be miniaturized and lightened in weight and enables data communication even when charged with a charger. SOLUTION: An external interface connector 10 is provided on the upper side face of a casing 1, where a radio part 7 of a printed circuit board 6 is located, and a high frequency line is connected while utilizing the pattern of the printed circuit board. The external interface connector 10 is composed of a receptacle and a plug, connects an antenna 2 to the fixed side of a contact for opening/closing the high frequency line at the receptacle and connects a radio part duplexer to the other movable contact. Thus, the switching between the duplexer and the external interface and between the duplexer and the antenna is enabled by inserting/ejecting the plug to/from the receptacle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone radio.

[0002]

2. Description of the Related Art A conventional portable telephone radio has a structure shown in FIG. (A) of the figure is a front view, (b) is an internal structure view, and (c) is a side view. In the figure, 1 is a housing, 2
Is an antenna, 3 is an LCD, 4 is a button key, 5 is a battery, 6 is an internal printed board, 7 is a wireless unit in the board, and 8 is a control unit.

An external interface connector 50 is provided at a lower portion of the housing, and an antenna 2 is provided at an upper portion.
The external interface connector 50 is used for connection to data communication, measurement of wireless characteristics, hands-free, and the like. The antenna 2 has an internal antenna (for reception) 2a and an external antenna (for transmission / reception) 2b, and performs antenna switching diversity. The receiving antenna 2a is an internal antenna contact 51a, and the transmitting / receiving antenna 2b is an external antenna contact 5
1b. The internal antenna contact 51a and the external antenna contact 51b are connected to switches 52a and 52b, respectively.
It is connected to the. Switches 52a, 5 on the upper part of housing 1
Coaxial cables 53a and 53b are connected between 2b and the lower external interface connector 50.

FIG. 6 shows a system diagram between the receiving antenna 2a and the transmitting antenna 2b and the external interface connector 50. The external interface connector 50 includes a housing-side receptacle 55 and an outer plug 54. The high-frequency lines 55a and 55b of the receptacle 55 are connected to switching contacts of the switches 52a and 52b by coaxial cables 53a and 53b.
a and the transmission / reception antenna output 57b are the switches 52a, 52
b is connected to the common contact.

The MPU 59 determines the connection of the external interface connector (plug) 54 based on the detection signal of the high frequency connector connection detection terminal 60 of the external interface connector (receptacle) 55,
a and 52b are connected to the duplexer 56 and the coaxial cable 53.
a and 53b, and the duplexer 56 is connected to the high frequency lines 55a and 55b of the external interface connector. This enables data communication with the external interface. When the external interface connector (plug) 54 is not inserted, the duplexer 56 is connected to the receiving antenna 2a and the transmitting / receiving antenna 2b. This allows transmission and reception of telephones and the like using the antenna.

[0006]

In the conventional configuration, since the external interface connector 50 is located at the lower portion of the housing 1 as described above, the space between the upper antenna 2 and the radio section 7 is connected by a coaxial cable. I was connected. Normally, a wireless device requires at least a length of about 125 mm for the housing 1 in order to secure the performance as a telephone, and there is a disadvantage that the coaxial cable becomes longer and the loss increases accordingly. Further, by providing a switch for switching between the antenna 2 and the external interface connector 50, it is difficult to reduce power consumption due to an increase in loss. In addition, it was difficult to reduce the size and weight of the wireless device due to the interior of a long coaxial cable.

[0007] In addition, since a portable telephone radio uses a battery power source, it is necessary to charge it with a charger. However, in a conventional device in which an external interface connector is arranged at a lower portion of a housing, a data communication cable cannot be connected when plugged into the charger. Therefore, there is a disadvantage that data communication cannot be performed when charging the charger.

SUMMARY OF THE INVENTION An object of the present invention is to provide a portable telephone radio which can reduce the loss due to the conventional problems of coaxial cables and switches, can be reduced in size and weight, and can perform data communication even when charging with a charger. It is in.

[0009]

SUMMARY OF THE INVENTION The object of the present invention is to provide an external interface connector on an upper side surface of a housing of a portable telephone radio where a radio section is located, and connect a high frequency line using a pattern of the printed substrate. Achieved by doing

Further, the above object is achieved by connecting an antenna to a fixed side of a contact which opens and closes by inserting and removing a plug into and from a receptacle of an external interface connector, and connecting a radio section duplexer to the other movable contact. .

According to the above means, the external interface connector can be connected to the antenna and the radio section duplexer without using a coaxial cable. The connection can be made as short as possible by using the pattern of the printed circuit board on the high-frequency line. Further, it is possible to switch between the antenna and the duplexer by using a contact that opens and closes by inserting and removing a plug into and from the receptacle of the external interface connector, thereby eliminating the changeover switch.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention,
(A) is a front view, (b) is an internal structure diagram, and (c) is a side view. In the figure, the same reference numerals as those in FIG. 5 of the related art, such as the case 1, the antenna 2, the LCD 3, the button keys 4, the battery 5, the internal printed circuit board 6, the radio unit 7, and the control unit 8, indicate the same or corresponding parts.

External interface connector 1 of the present invention
Numeral 0 is provided on the upper side surface of the housing 1, particularly on the wireless section 7 of the printed circuit board 6.

FIG. 2 shows an external interface connector 1
0 shows a connection system diagram. The external interface connector 10 is connected to the high-frequency lines 11a, 11b, 12a,
The respective contacts of the data line 12b, the data lines 11c and 12c, and the ground lines 11d and 12d are separated from each other. The receptacle 12 directly connects the movable contact of the high-frequency line 12a to the receiving antenna input 14a of the duplexer 13, and directly connects the movable contact of the high-frequency line 12b to the transmitting and receiving antenna output 14b of the duplexer 13. The fixed contact of the high-frequency line 12a is connected to the receiving antenna 2a using a pattern (strip line) 16a of the printed circuit board 6, and the fixed contact of the high-frequency line 12b is connected to the transmitting / receiving antenna 2b using the strip line 16b. I do.

The high-frequency line 12 of the receptacle 12
When the plug 11 is inserted into the receptacle 12, the contacts 11a and 11b on the plug 11 side are opened and closed.
The movable contact on the receptacle 12 side comes into contact with the movable contact on the receptacle 12 side, the gap between the movable contact on the receptacle 12 side and the fixed contact opens, and when the plug 11 is removed, the open / close switch operates so that the movable contact comes into contact with the fixed contact.

As described above, the receptacle 12 of the external interface connector is in constant contact with the fixed contact and the movable contact of the high-frequency line 12a when the plug 11 is not inserted. 14a, the signal is input to the duplexer 13, and the duplexer 13 receives and outputs 15a. In addition, the fixed contact and the movable contact of the high-frequency line 12b are always in contact, and the transmitting / receiving antenna output 14b of the duplexer 13 is transmitted / output from the transmitting / receiving antenna 2b.

When the plug 11 is inserted into the receptacle 12, the contacts of the plug-side high-frequency lines 11a and 11b come into contact with the movable contacts of the receptacle-side high-frequency lines 12a and 12b. Is the receptacle 1
2 is connected to the high-frequency line of the plug 11. At this time, the high frequency lines 12a and 12b of the receptacle 12
Open between each fixed contact and the movable contact of the receiving antenna 2a,
The connection between the transmitting / receiving antenna 2b and the duplexer 13 is disconnected.

As described above, the plug 1 is connected to the receptacle 12.
By inserting and removing 1, the connection between the duplexer 13 and the external interface and the connection between the duplexer 13 and the antenna 2 can be switched, and the connection can be switched without providing a switch. Further, the connection between the connector 10 and the antenna 2 can be performed by using the pattern (strip lines 16a, 1
6b), the loss can be reduced.

FIG. 3 shows a state in which the portable telephone radio of the present invention is charged by the charger. The mobile phone wireless device is charged by inserting the lower part of the housing 1 into the charger 41.
Is provided in the upper part of the housing, so that the external interface connector 10 can be connected during charging, and the data communication cable 42 can be used to connect to the personal computer 43. Thus, when charging is performed by the charger 41, data communication can be performed by the personal computer 43.

[0021]

As described above, according to the present invention, since the coaxial cable is removed from the connection of the external interface connector, the loss due to the cable is small and the power consumption can be reduced. Also, the number of parts can be reduced, and cost reduction, compactness, and weight reduction can be achieved.

[Brief description of the drawings]

FIG. 1 is a structural view of an embodiment of the present invention.

FIG. 2 is a connection system diagram of an external interface connector according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a state of charge by the charger of the present invention.

FIG. 4 is a structural view of a conventional mobile phone radio.

FIG. 5 is a connection diagram of a conventional external interface connector.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Housing, 2 ... Antenna, 3 ... LCD, 4 ... Button keys, 5 ... Battery, 6 ... Printed circuit board, 7 ... Wireless part, 8
... Control unit, 10 ... External interface connector, 11
... plug, 12 ... receptacle, 2a, 2b ... antenna, 11a, 11b, 12a, 12b ... high frequency line,
13: duplexer, 14a: receiving antenna input, 1
4b: transmit / receive antenna output, 15a: receive output, 15b
... Transmission input, 16a, 16b ... Strip line.

Claims (2)

[Claims] 1. A portable telephone wireless device provided with an external interface connector, wherein the external interface connector is provided on an upper side surface of a housing where a radio section of a printed circuit board is located, and a high frequency line is connected using a pattern of the printed circuit board. A mobile phone radio characterized by the following. 2. The external interface connector according to claim 1,
2. The mobile phone radio according to claim 1, wherein an antenna is connected to a fixed side of a contact that opens and closes a high-frequency line by inserting and removing a plug into and from the receptacle, and a radio unit is connected to the other movable contact.