JPH0514230A - Portable telephone set - Google Patents

Abstract

PURPOSE:To obtain an always satisfactory communicating state even at the time of carrying this device by constituting a receiving means having an antenna and a speaker so as to be separated from a main body having a transmitting means CONSTITUTION:A portable telephone set is of a separable constitution in which a receiving body 1A can be separated from a main body 1B constituted of the transmitting part and a battery or the like. The receiving body 1A is constituted of one part of the receiving part including an antenna 6 and a speaker 2, and a compact battery with a capacity necessary and sufficient for driving the receiving part. In a reception waiting state, only the compact and light receiving body 1A is put into a bosom pocket or the like, and the antenna 6 is exposed to outside. Then, the rather heavy and voluminous main body 1B is housed in a bag or the like in order to carry it. At the time of getting a call, an incoming call sound is given from the speaker 2 of the receiving body 1A. At that time, a conversation is attained by connecting the receiving body 1A through respectively provided contact type terminals 7A and 7B with the main body 1B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone, and more particularly to a mobile phone having a smaller size and superior functionality.

[0002]

2. Description of the Related Art A conventional mobile phone is shown in FIGS. In the mobile phones shown in FIGS. 19 to 22, not only the receiving section, but also the antenna is integrated with the main body.

Regarding the shape of the antenna, most of them use the sleeve antenna 106 shown in FIG. 19, and rarely the plate-shaped inverted F-type antenna 2 as shown in FIG.
Some even had 16 interiors. Further, as shown in FIG. 22, two types of antennas 226A are used as antennas of the mobile phone for diversity, that is, to switch a plurality of types of antennas according to the reception state and always maintain a better transmission / reception state. Some adopted 226B.

[0004]

As shown in FIGS. 19 and 20, the conventional mobile phone has an antenna and a main body which are integral with each other and cannot be separated. Therefore, in a state where the phone is stored in a bag or the like when normally carried, the antenna may not receive sufficient radio waves, and the incoming call may be supported. In this case, it is expected that the range of use of the mobile phone will be further expanded if it is possible to notify the wearer of the incoming call with a higher probability by some means. That is, the conventional antennas shown in FIGS. 19 and 20 have been obstacles in downsizing the portable wireless device or the portable telephone and improving the portable performance.

By the way, when the size of a mobile phone is reduced,
As portability improves, the probability of problems such as misplacement and loss is expected to increase. In such a case, it can be said that one solution is to determine the storage place of the mobile phone in one place and make it a habit.

As one means for achieving this purpose without impairing the portability of the telephone, it is conceivable to select such a storage place as a pocket such as a Y-shirt or a suit.
It can be said that a pen-type mobile phone is suitable for this purpose.

[0007] If the clip part for sandwiching it in a pocket such as a Y-shirt or suit can be shared with the antenna, it not only contributes to further downsizing and weight saving of the mobile phone, but also keeps the antenna in contact with the outside world. Therefore, it is possible to notify the caller of the incoming call with a higher probability than when the mobile phone is stored in a bag or the like.

According to the present invention, when a portable telephone is downsized to have a pen-type structure with good portability, a clip portion for inserting in a pocket such as a Y-shirt or a suit is also used as an antenna, so that the portable telephone can be made smaller and lighter. At the same time, it is possible to carry the antenna while keeping the antenna in contact with the outside world,
It is an object of the present invention to provide a small-sized mobile phone capable of notifying a carrier of an incoming call with a higher probability as compared with the case of being stored in a bag or the like.

If a mobile phone which is smaller, lighter and more portable is desired in the future, folding the mobile phone can be one solution. In this case, if at least the incoming call-dedicated antenna can be built in, the portability will be further improved.

The present invention has been made in view of the above circumstances, and enables a built-in incoming call-dedicated antenna for a folding type mobile phone by utilizing the mechanical characteristics of folding. It was done.

An antenna switching diversity system is one of the means for keeping the transmitting / receiving state always good. However, diversity reception is generally for maintaining the sending / receiving state constant as much as possible against changes in the propagation environment due to the influence of parties other than the caller, and improving the deterioration of reception performance due to the effect of the caller himself. It is not used to For this reason, in the conventional antenna switching diversity system, even if two or two types of antennas are provided for diversity reception, the mobile phone itself is downsized and the influence on the antenna of the caller cannot be ignored. However, against this influence, it was not possible to sufficiently compensate the deterioration of the reception performance. The present invention avoids the influence of the caller himself as much as possible even when the mobile phone using the built-in antenna is miniaturized, and the influence on the antenna of the caller can not be ignored, and always provides better transmission. The purpose of the present invention is to provide a mobile phone antenna that can maintain a reception state.

[0012]

In order to achieve the above object, the first invention of the present application is to provide a receiving means having an antenna and a notifying means capable of notifying an incoming call inputted through the antenna, and a transmitting means. In addition to being configured to be separable from the main body having, the receiving means can notify the incoming call even in the separated state.

The second invention of the present application is to have a housing for housing a wireless telephone, and a clip for supporting the housing and functioning as an antenna of the wireless telephone housed in the housing. To do.

The third invention of the present application is a mobile phone having a structure in which the first housing and the second housing can be folded in a state of being opposed to each other, and the first housing incorporated in the first housing is provided. An antenna and a second antenna built in the second housing are provided, and when the first housing and the second housing are folded, the first antenna and the second antenna are The gist is that they are connected to form a loop antenna.

Further, according to a fourth aspect of the present invention, there is provided a first antenna provided at one end of the housing, a second antenna provided at the other end of the housing, the first antenna and the second antenna. Two
Selection means for comparing inputs from the two antennas and selecting one of the two antennas according to an input state that changes depending on the position of the hand holding the casing of the caller. Is the gist.

[0016]

In the mobile phone of the first invention of the present application, since the antenna and the minimum necessary receiving portion can be separated from the main body, the heavy main body portion can be housed in a bag or the like, if necessary, and the weight is required to be light. The antenna part including the minimum receiving part can be taken out and carried. As a result, the antenna can be maintained in a place where there are no obstacles as much as possible even when being carried, and an incoming call can always be received in the best state.

In the mobile phone of the second invention of the present application,
By causing the clip portion for supporting the mobile phone in the chest pocket or the like to function as an antenna, at least the antenna can be exposed to the outside world, so that good communication can be ensured.

The mobile phone according to the third aspect of the present invention is a mobile phone of the type that is folded and stored at the time of storage. Since the loop antenna is formed by the folding, the mobile phone can be folded and placed in a pocket or the like. When carried, the loop opening of the loop antenna can be made perpendicular to the conductor such as the human body, so when used as an antenna for incoming calls, the incoming call function of the mobile phone is greatly improved. Can be planned.

In the mobile phone of the fourth invention of the present application, a pair of antennas are arranged on both ends of the casing, for example, on the backside of a speaker and a microphone respectively arranged on both ends of the casing. Depending on the degree to which each antenna is affected by holding the case of the mobile phone, an antenna that always provides a better reception level or error rate is selected and switched to reduce the size of the built-in antenna. Even with a mobile phone, it is possible to maintain conversations while always maintaining the best sending / receiving state.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 shows a mobile phone including an antenna 6, a part of a receiver, a receiver 1A made up of a small battery having a capacity sufficient to drive the receiver, and a transmitter and a battery other than the receiver 1A. It is a perspective view which shows the state which separated the main body 1B. This mobile phone is
The receiver 1A and the main body 1B are used by being physically connected directly through contact type terminals 7A and 7B provided respectively.

That is, in a radio device using radio waves, one means for detecting an incoming call with a higher probability is to use an antenna having a higher gain in an optimum state. However, in recent years, mobile phones have been increasingly miniaturized to a size that can be stored in a bag or the like from the viewpoint of convenience, and have been carried in the bag or the like. Therefore, in general, the antenna can exhibit its original performance only when there are no obstacles around it, so that the antenna cannot exhibit its original performance when it is housed in a bag or the like.

Therefore, in the present embodiment, if the antenna and the minimum necessary receiving unit can be taken out of the bag, the above-mentioned interests can be compatible. Therefore, as shown in FIG. Receiving body 1A including a limited antenna 6 and a part of a receiving unit from which an RF output, an IF output or a detection output is obtained, and a small battery for driving the same
And the other main body 1B part are separated. Therefore, in the reception standby state, only the small and lightweight receiver 1A is put in a chest pocket or the like so that the antenna 6 is exposed to the outside and the main body 1B having a relatively large weight and volume is stored in a bag or the like. , It is possible to carry.

When an incoming call is received, a ring tone is emitted from the speaker 2 of the receiver 1A. Therefore, after physically connecting the separated part and the other main body through a contact type terminal or the like, Have a conversation.

A second embodiment of the present invention will be described with reference to FIG. FIG. 2 shows that the antenna, a part of the receiving part, a part consisting of a small battery for driving the part, and the other main part are separated, and they are communicated with each other through a metallic cable or an optical cable during conversation. Indicates the type of connection.

As shown in FIG. 2, the minimum antenna and RF
A part of the receiving part from which an output or an IF output or a detection output is obtained, and a part consisting of a small battery for driving it,
It is a separation-type mobile phone including a main body part other than that and a metallic cable or an optical cable for electrically connecting them. In the figure, after the call is received, the separated part and the other body are connected to each other for communication via a metallic cable or an optical cable, and then a conversation is performed.

A third embodiment of the present invention will be described with reference to FIG. FIG. 3 shows a structure in which an antenna, a part of a receiving part, a part consisting of a small battery for driving the part, and a main part other than the part are separated from each other, and during conversation, they are wirelessly connected for communication. Indicates the type.

As shown in FIG. 3, the minimum antenna and RF
A part of the receiving part from which an output or an IF output or a detection output is obtained, and a part consisting of a small battery for driving it,
The mobile phone is a separation type mobile phone including a main body part other than that and a wireless transmission / reception part for connecting them via radio waves. The figure shows an example of a type in which after the incoming call, a communication is wirelessly connected to the separated part and the other main body, and then a conversation is performed. In this case, the separated antenna 37A attached to the former side can also be used as the original antenna 6 for transmitting and receiving RF signals.

As described above, according to the mobile phone of the present embodiment, the small mobile phone is a relatively heavy and dimensionally large part including the main battery, and is lightweight and dimensional. In addition, by dividing it into small parts, even when the former is stored in a bag or the like when being carried, the latter can be installed in an environment where there are as few obstacles as possible around the antenna. As a result, it is possible to notify an incoming call with a high probability even when it is stored in a bag or the like.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 4 to FIG. 6 are perspective views showing a standby state of a pen-type mobile phone in which the inverted F-type antenna is also used as a clip.

That is, when the antenna is also used as a clip, an inverted F-type antenna (see the fourth embodiment shown in FIGS. 4 to 6) and an inverted L are used as antennas that are convenient in structure.
Shaped antennas (see the fifth embodiment shown in FIG. 7) and microstrip antennas (see the sixth embodiment shown in FIG. 8) are possible.

First, an example in which the clip portion shown in FIGS. 4 and 5 is also used as an inverted F type antenna will be described. The hinge 1C is an opening / closing mechanism of the mobile phone when the microphone 3 and the speaker 2 are folded in half so as to be housed inside. Also, an inverted F-type antenna 46 that also serves as a clip
Is attached to one side of the mobile phone. Figure 4,
FIG. 5 is a state diagram during standby, and functions as an incoming call antenna in the state as it is, or in a state in which the clip portion is exposed to the outside in a Y-shirt, a pocket such as a suitcase, for example, a chest pocket. Of course, the state of the antenna is shown in Figure 4.
Alternatively, the call can be made as it is in FIG. 5, but if the reception performance deteriorates due to the hand of the caller during the call, the antenna is centered on the rotary support shaft 46c shown in FIG. 5 as shown in FIG. By rotating in such a manner as to avoid the influence of the hands of the caller, the deterioration of the reception performance can be overcome. Further, the coil spring 46b shown in FIG. 5 serves both as an electrical loading coil and a mechanical spring, and the rotation of the antenna portion slightly protrudes from the hook 46a opened in the inverted F-shaped antenna 46 also serving as a clip. This can be done by pushing the hooked portion and removing the hook 46a.

A fifth embodiment of the present invention will be described with reference to FIG. FIG. 7 is a plan view showing a state in which the pen-type mobile phone using the inverted L-shaped antenna is on standby.

In FIG. 7, a hinge 1C is an opening / closing mechanism for folding the portable telephone in half. The inverted L-shaped antenna 76 also serving as a clip is attached to one side surface of the mobile phone. Therefore, it functions as an incoming call antenna in this state or in a state where it is sandwiched in a pocket such as a Y-shirt or suit with the clip portion exposed to the outside. Of course, the call is possible even in the state of FIG. 5, but if the reception performance deteriorates due to the influence of the hand of the caller during the call, rotate the antenna as in the case of the inverted F-type antenna shown in FIG. By rotating around the support shaft 76c and avoiding the influence of the hand of the caller or the like, deterioration of reception performance can be avoided.

A sixth embodiment of the present invention will be described with reference to FIG. FIG. 8 is a perspective view showing a standby state of a pen-type mobile phone using a microstrip antenna. In FIG. 8, a hinge 1C is an opening / closing mechanism when the mobile phone is folded in two. Further, the microstrip antenna 86 also serving as a clip is shared with a clip portion attached to one side surface of the mobile phone. In this case, the fact that the microstrip antenna radiating element portion 86b is drawn by a broken line indicates that the radiating element portion 86b is embedded in the clip. FIG. 8 is a state diagram at the time of standby, and functions as an incoming call antenna in the state as it is, or in a state in which the clip portion is placed in a pocket such as a Y-shirt or a suit so that the clip portion is in contact with the outside world. Of course, the call is possible even in the state of FIG. 8, but if the reception performance deteriorates due to the influence of the hand of the caller during the call, as in the case of the inverted F-type antenna shown in FIG. By rotating the strip antenna 86 around the rotation support shaft and avoiding the influence of the hand of the caller or the like, deterioration of the reception performance can be avoided.

As described above, according to the mobile phone of this embodiment, since the clip portion of the pen-type small-sized mobile phone functions as an antenna, it is not necessary to attach an antenna as in the conventional case, and the size is small and lightweight. Not only can it be realized, but it is also excellent in portability.

A seventh embodiment of the present invention will be described with reference to FIG. FIG. 9 is a perspective view showing a built-in antenna capable of forming a loop antenna in a state where the mobile phone is folded, in which a part of a main part is cut away to show an internal structure. In addition, in the present embodiment, a case where the loop antenna 96 is made of a metallic wire will be described as an example.

FIG. 9 shows a state in which the portable telephone is folded, and in this case, the folded antennas 96A and 96B function as a loop antenna. Further, in the present embodiment, an example in which the feeding point is provided on the side opposite to the hinge 1C side is shown. However, the position of the feeding point is actually a physical circuit in the latter stage of the incoming call-dedicated antenna formed on the substrate 98. It can be arbitrarily determined depending on the configuration. Further, the contact point at the time of folding shown in the figure on the side opposite to the hinge 1C side may be directly connected in a direct current manner or may be capacitively coupled. Also,
The loop antenna 96 may be configured by a metallic ribbon other than the example shown in FIG. 9, or may be configured by using a linear or ribbon material obtained by subjecting a non-metal material to a metal treatment such as metal plating. You may.

Next, the operation of this embodiment will be described. Assuming that such a mobile phone is actually carried, the mobile phone is often carried in a state of being in close contact with the human body. Therefore, in the mobile phone using the built-in type antenna, the antenna is naturally in close contact with the human body. In such a situation, it is desirable to use a magnetic field coupling type antenna as an antenna in order to realize an incoming call with a higher probability. It is known that, in the vicinity of an object that can be regarded as a conductor, such as a human body, the electric field component significantly decreases due to the boundary condition, but the magnetic field component increases by nearly 3 dB. Therefore, a magnetic field coupling type antenna such as a loop antenna is superior to an electric field coupling type antenna such as a dipole antenna as an antenna of a wireless device that is brought into close contact with a human body.

By the way, it is generally known that the electric performance of the loop antenna Ant is preferably such that the loop is circular or square, and that the gain increases in proportion to the opening area F of the loop shown in FIG. Now, assuming that the foldable mobile phone is in a portable state, it is expected that configuring a loop antenna as shown in FIG. 9 will lead to the realization of a built-in antenna with the highest electrical performance and high gain. To be done. That is, a configuration of a loop antenna as shown in FIG. 12 is also conceivable, but in this case, the loop is parallel to the substrate 98 on which the electronic components are arranged, so that the original performance of the loop antenna cannot be obtained and a preferable configuration is obtained. I can't say. Generally, the loop antenna Ant is shown in FIG.
As shown in FIG. 1, it must be arranged in a direction parallel to the metal conductor plate E.

As described above, according to the mobile phone of this embodiment, in the small portable phone of the folding type,
It is possible to provide a built-in antenna that can receive a call with a high probability even when it is folded and carried.

An eighth embodiment of the present invention will be described with reference to FIG. FIG. 13 shows an example in which a speaker 2, a microphone 3, a button dial 4, and a display unit 5 are arranged on the surface of a rod-shaped housing, and microstrip antennas 136A and 136B are used as antennas arranged on the back side of the surface panel. is there. In the figure, microstrip antennas 136A, 1
The radiating element of 36B is embedded and disposed in a plastic cover or the like. Further, regarding the shape of the radiating element, a rectangular type is shown in this example, but it is not limited to a rectangular shape.

Next, the operation of the ninth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. Considering the case where a telephone conversation is performed, the distance between the speaker and the microphone of the telephone must be the distance between the human ear and the mouth. For a standard human, this length is said to be approximately 15 cm. On the other hand, when holding a mobile phone with a hand for conversation, the length covered by a standard human hand is considered to be about 10 cm. In addition, the way of gripping is generally shown in Fig. 1.
The type shown in FIG. 4 in which the microphone is held to hold the housing, FIG.
5 can be classified into a type in which the button dial 4 disposed in the middle portion is held to hold the housing, and a type in which the speaker side is held in FIG. 16 to hold the housing.

Therefore, by arranging the pair of antennas on the back sides of the speaker and the microphone as shown in FIG. 13, it is possible to prevent one of the antennas from affecting the hand of the caller.

A tenth embodiment of the present invention will be described with reference to FIG. FIG. 18 shows an example in which slot antennas 36A and 36B are used for the antennas arranged on the back side of the speaker and the microphone as in the eighth embodiment shown in FIG.

In this case, the slot antennas 36A, 36
B is realized by exciting the slit-shaped opening formed in the metal plate shown by the broken line in the figure. The broken line showing the metal plate means that the metal plate is embedded in a plastic cover or the like, as in the case of FIG.

Further, a combination of a microstrip antenna and a slot antenna can be considered as an antenna arranged on the back side of a speaker and a microphone. However, in this case, the microstrip antenna 26 is arranged on the back side of the speaker, and the slot antenna 36 is arranged on the back side of the microphone.
May be placed and vice versa. Further, it goes without saying that the combination of antennas is not limited to the combination of the microstrip antenna and the slot antenna shown in this example as long as the antenna is thin.

Further, it becomes possible to carry the antenna in a state where it is always in contact with the outside world, and it becomes possible to notify the carrier of the incoming call with a higher probability than when the antenna is stored in a bag or the like.

As described above, according to the mobile phones of the eighth to tenth embodiments, the shape of the mobile phone is rod-shaped, and the pair of antennas built in at both ends of the mobile phone is always used by the caller himself. Since the antenna that is less affected by the human body is used for transmission / reception, it is possible to have a conversation in a stable transmission / reception state compared to the conventional one.

[0050]

As described above, according to the present invention,
It is possible to maintain an antenna environment in which a good communication state is always maintained even when the mobile terminal is in the housed state when being carried or in the communication state.

[Brief description of drawings]

FIG. 1 is a first embodiment of the present invention, an antenna and a part of a receiving portion, a portion consisting of a small battery for driving it, and a main body portion other than that are separated, and during conversation,
It is a figure showing the type which connects them directly physically via a contact type terminal etc.

FIG. 2 is a second embodiment of the present invention, the antenna and a part of the receiving portion, a portion consisting of a small battery for driving it, and the other main body portion are separated, during conversation,
It is a figure which shows the type which electrically connects them via a metallic cable or an optical cable.

FIG. 3 is a third embodiment of the present invention in which a part of an antenna and a receiver, a part composed of a small battery for driving the part, and a body part other than the part are separated, and at the time of conversation,
It is a figure which shows the type which electrically connects them using a radio | wireless.

FIG. 4 is a perspective view showing a standby state of a pen-type mobile phone using an inverted F-type antenna according to a fourth embodiment of the present invention.

FIG. 5 is a plan view showing a configuration of an antenna in a standby state of a pen type mobile phone using an inverted F type antenna according to a fourth embodiment of the present invention.

FIG. 6 is a perspective view showing a state of a pen-type mobile phone using an inverted F-type antenna according to a fourth embodiment of the present invention during a call.

FIG. 7 is a plan view showing a standby state of a pen-type mobile phone using an inverted L-shaped antenna according to a fifth embodiment of the present invention.

FIG. 8 is a perspective view showing a standby state of a pen-type mobile phone using a microstrip antenna according to a sixth embodiment of the present invention.

FIG. 9 is a diagram showing a built-in antenna capable of forming a loop antenna in a folded state of a mobile phone according to a seventh embodiment of the present invention.

FIG. 10 is a diagram showing the definition of an antenna aperture of the loop antenna according to FIG.

FIG. 11 is a diagram for explaining an appropriate orientation of the loop antenna placed near the conductor plate according to FIG.

FIG. 12 is a diagram showing an example of a built-in loop antenna for which an effect obtained by the present invention cannot be expected with respect to FIG. 9;

FIG. 13 is a diagram showing a mounting position of a pair of built-in antennas of a mobile phone according to an eighth embodiment of the present invention.

FIG. 14 is a diagram showing a first way of gripping a mobile phone according to a ninth embodiment of the present invention.

15 is a diagram showing a second way of gripping the mobile phone shown in FIG.

16 is a diagram showing a third way of gripping the mobile phone shown in FIG. 13. FIG.

17 is a diagram showing an arrangement of a pair of microstrip antennas used in the mobile phone shown in FIG.

FIG. 18 is a diagram showing a small mobile phone using a pair of slot antennas according to a tenth embodiment of the present invention.

FIG. 19 is a diagram showing a conventional one-piece type mobile phone.

FIG. 20 is a diagram showing a conventional two-fold type mobile phone.

FIG. 21 is a diagram showing a mobile phone using a conventional inverted F-shaped plate antenna.

FIG. 22: 2 for conventional antenna switching diversity
It is a figure which shows the mobile telephone provided with the kind of antenna.

[Explanation of symbols]

1A Incoming call receiver 1B body 1C hinge 2 speakers 3 microphone 4 button dial 5 Display 6 antenna 7A female side connection terminal 7B Male side connection terminal 26 microstrip antenna 36 slot antenna 27 Connection cable 27A female side connection terminal 27B Male side connection terminal Inverted F type antenna for 46 clips 46a hook 46b coil spring 46c rotating spindle 76 L-shaped inverted dual-purpose antenna 76c rotating spindle 86 Clip and Microstrip Antenna 86b Radiating element for microstrip antenna 91A Speaker side body 91B Microphone side body 96A speaker loop antenna 96B Microphone side loop antenna 96i interface 98 substrate 136A first antenna 136B Second antenna

Claims (4)

[Claims] 1. Receiving means having an antenna and notifying means capable of notifying an incoming call input via the antenna is configured to be separable from a main body having transmitting means, and the receiving means is in a separated state. A mobile phone characterized by being able to notify an incoming call even if there is. 2. A mobile phone comprising: a housing that houses a wireless telephone; and a clip that supports the housing and that functions as an antenna of the wireless telephone housed in the housing. 3. A mobile phone having a structure in which the first casing and the second casing can be folded in a state of being opposed to each other, wherein a first antenna incorporated in the first casing and a second casing. A second antenna built into the body,
The mobile phone, wherein the first antenna and the second antenna are connected to each other to form a loop antenna when the housing and the second housing are folded. 4. A first antenna provided at one end of the housing, a second antenna provided at the other end of the housing, and inputs from the first antenna and the second antenna. In comparison, a mobile phone comprising: a selection unit that selects one of the two antennas according to an input state that changes according to the position of the hand of the caller holding the casing. .