JP2001177621A - Portable communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable communication terminal which can be used as a small and lightweight portable radio terminal without loosing a standby time and a speaking time. SOLUTION: A charging part 2 which is fitted to the main body 1a of a portable radio equipment 1 in an attachable and detachable manner to supply power to the main body 1a is provided and the part 2 has a slot 8 for inserting a card-type external extension storage medium 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable communication terminal used for a portable telephone or the like, and more particularly, to a portable communication terminal having a power storage unit detachably attached to a portable communication terminal body.

[0002]

2. Description of the Related Art There is a portable communication terminal such as a portable telephone in which a headphone stereo or the like is combined. For example, in a portable telephone capable of recording and reproducing sound described in Japanese Patent Application Laid-Open No. 4-243358, it is proposed that the portable telephone have a headphone stereo function. Further, Japanese Patent Application Laid-Open No. 8-19032 proposes a portable wireless device in which a voice recording unit and a battery pack can be attached and detached.

[0003]

However, such a conventional apparatus is disclosed in Japanese Patent Application Laid-Open No. 4-243358.
In the mobile phone with a headphone stereo function described in Japanese Patent Application Publication No. H07-27138, in actual use, when used as a headphone stereo, a large-capacity storage unit for holding musical sound data is required, and since a storage medium is built-in. There is a disadvantage that the size cannot be reduced because of the space.
In addition, a normal battery may not be able to provide sufficient standby time and talk time. If a large battery is used to avoid this, portability is impaired and users who prefer to use mobile phone functions are given priority. Had the drawback of being difficult to use.

On the other hand, the apparatus described in Japanese Patent Application Laid-Open No. HEI 8-19032 discloses a music recording / reproducing system for compensating for the above-mentioned disadvantages.
An attempt is made to solve the problem by removing the music recording / reproducing unit during normal use by configuring the reproducing unit to be detachable and using it in combination with a detachable battery pack. However, with such devices, music recording and
The reproducing unit becomes very large, and is difficult to use when recording and reproducing music, like the apparatus described in the above publication. As described above, when the terminal has a storage unit for storing musical sound information, the space corresponding to the storage medium hinders the miniaturization of the terminal, and the terminal must wait for the original terminal for continuous reproduction. There was a problem that time and call time became short.

[0005] A similar problem also occurs when the music recording / reproducing section is detachable in order to maintain the standby time or the talk time. When performing music recording / reproducing, the terminal does not use much. There was a problem of leprosy. The present invention has been made in view of such problems, and a portable communication terminal that can be used as a small and lightweight portable wireless terminal and that can be used without impairing standby time and call time. The purpose is to provide.

[0006]

A portable communication terminal according to the present invention is a portable communication terminal comprising: a portable communication terminal main body; and a power storage unit detachably attached to the portable communication terminal main body. Is characterized by having an external extended storage means readable or writable from the portable communication terminal body.

The external expansion storage means is a card-type storage medium, and the power storage unit has a slot through which the storage medium can be inserted and removed. It is possible to select and use the power storage unit having the above, can be used without impairing the standby time and the talk time, and can be used as a small and lightweight portable wireless terminal. In addition, since information can be stored in a storage medium that can be inserted into and removed from the slot, the information can be used in various ways.

[0008] Further, the power storage unit further includes a sound emitting means for loudspeaking the audio signal and emitting the sound, so that a higher quality sound can be reproduced when reproducing the musical sound information.
Further, since the external extended storage means stores the musical tone information, the musical tone information received by the main body of the portable communication terminal can be stored in the external extended storage means outside the main body. Without using it, the tone information stored in the external extended storage means can be used by other devices.

[0009] The portable communication terminal main unit further includes control means for controlling music information received from a music distribution center to be stored in the external extended storage means, wherein the control means, when requested by a user, By controlling to read out the tone information stored in the external extended storage means and reproduce it as a tone, the tone information received by the tone distribution service or the like can be stored without using the memory inside the main body. Music can be reproduced.

[0010] Further, the external extension storage means stores a program used in the main body of the portable communication terminal, so that the program stored in the external extension storage means is used in the main body so that the portable communication terminal can be used. Can be multi-functional or upgraded.

Further, the external extended storage means stores the received information received by the main body of the portable communication terminal, so that the received information can be stored without using the internal memory of the main body. Can be used and stored outside the main unit. Further, the portable communication terminal main body includes a detection unit that detects that the external expansion storage medium is mounted on the power storage unit, and automatically detects that the external expansion storage medium is mounted. For example, it is possible to immediately execute reading of information from the external expansion storage medium.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a portable communication terminal according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a side view showing the appearance of the mobile communication terminal according to the first embodiment of the present invention, and FIG. 2 is a functional block diagram of the mobile communication terminal. The mobile communication terminal according to the present embodiment is an example applied to a mobile phone.

In FIG. 1, reference numeral 1a denotes a main body of the portable radio 1; the main body 1a of the portable radio 1 is a charging section 2 (power storage section) for supplying power to the main body 1a; an antenna 3 for performing wireless communication; It comprises a speaker 4, a microphone 5 for inputting voice, a display unit 6 for displaying guidance for operation and received information, and an operation unit 7 for performing operation. The charging unit 2 includes a card type external extended storage medium 9.
(External expansion storage means).

The charging unit 2 is a battery (hereinafter, referred to as a battery pack) packaged for operating the portable wireless device 1 even in a place where commercial power is not available. The unit 2 is charged via an AC adapter or the like when the portable wireless device 1 main body 1a is connected to a commercial power supply. The charging section 2 is detachably attached to the back of the main body 1a of the portable communication device 1.

The charging section 2 can be replaced with a normal charging section 30 having no slot 8 for inserting and removing the external expansion storage medium 9 as shown in FIG. The charging unit 30 shown in FIG.
It is detachably attached to the back of the main body 1a.

In FIG. 2, the main body 1a of the portable communication device 1 includes a radio unit 10, a modulation / demodulation unit 11, a CPU 12 (control means), a voice input / output unit 13, a voice processing unit 14, an operation control unit 15, and a display unit. Control unit 16, display output unit 17, internal storage unit 18, external expansion storage medium detection unit 19, power supply unit 20, charging medium 21, external speaker 22, and external audio output unit 2.
The charging unit 2 includes a slot 8 for inserting and removing the card type external expansion storage medium 9 and a charging medium 21.
It is comprised including. 22a to 22h are connection terminals for electrically connecting the main body 1a of the portable communication device 1 and the charging section 2.

The card-type external extended storage medium 9 is, for example, an SR for storing information written by power backup.
Compact flash (C) consisting of an AM (Static RAM) card and flash memory that does not require power backup
F), smart media, memory stick, and even the same size as a compact flash or PC card Ty
Ultra-small hard disk drive (HD
D) and the like.

The microphone 5 converts the voice of the mobile phone user into an electric signal, and supplies the converted signal to the audio processing unit 14 through the audio input / output unit 13. The audio processing unit 14 converts the electric signal of the microphone 5 via the CPU 12 and the radio unit 10. Tell the other party. The display unit 6 is composed of an LCD display. For example, the time is displayed during standby, and the telephone number and call time of the other party are displayed during a call. The display output unit 17 is a driver for operating the display unit 6.

The operation unit 7 is an input unit including a specific function key 14 such as a menu key, a call key, an end key, and a cancel key, and basic function keys such as a number key, an * key, and a # key. Is input to the operation control unit 15. The radio unit 10 modulates an audio signal input from the microphone 5 into a transmission / reception radio frequency (RF) and radiates it from the antenna 3, and a receiver that receives a transmission / reception radio frequency (RF) band signal from the antenna 3 Etc., and communicates with the mobile phone network.

The modulation / demodulation unit 11 modulates the multiplexed signal, outputs the modulated signal to the radio unit 10,
The signal wirelessly received by the wireless unit 10 is demodulated. The audio input / output unit 13 includes an A / D converter, a D / Α converter, a power amplifier, and the like. The audio input / output unit 13 converts an audio signal into audio data, converts the audio data into an audio signal, amplifies and outputs the audio signal.

The voice processing unit 14 includes a voice coder for compressing and coding voice, an error correction coding unit for voice, and the like, and performs compression and decompression of voice voice. The CPU 12
A control unit that controls the entire apparatus, and controls a mobile phone using a memory storing data used for calculation, for example, setting, releasing, and handing off a call, and controlling the wireless communication processing unit 12. And implement some of the communication protocols. The internal storage unit 18 includes a ROM, a RAM, and an EEPROM (electric
ally erasable programmable ROM), CPU1
2 and various data such as communication control data.

When the card type external expansion storage medium 9 is inserted into the slot 8 of the charging section 2 and is mounted at a predetermined position, the external expansion storage medium detecting section 19 controls the control terminals 22b, 2
The attachment of the external expansion storage medium 9 is electrically detected via 2g and output to the CPU 19. Further, when the attachment of the external expansion storage medium 9 is detected by the external expansion storage medium detection unit 19, the CPU 19 can read / write the external expansion storage medium 9 via the data terminals 22a and 22h.

The power supply section 20 supplies a predetermined power to each section of the main body 1a, and supplies the charging medium 2 of the charging section 2 mounted thereto.
1 is controlled via the power supply terminals 22c to 22f. The power supply unit 20 has a built-in charge controller (not shown).
For example, the discharging current of the charging unit 2 is integrated, and charging is started when it is determined that the remaining capacity of the battery pack has become equal to or less than a predetermined value. At the time of charging, the charging current to the battery pack is integrated, and the battery pack is fully charged. The charging is stopped when it is determined that the battery has become full. Charged charging section 2
Becomes the main power supply of the portable communication device 1 when the portable communication device 1 is disconnected from the commercial power supply, and supplies electric power to each part of the main body.

As the charging medium 21 of the charging section 2, for example, a lithium ion battery is used as a battery cell. Since a lithium ion battery has a high energy density per weight and per volume, it meets the trend of miniaturization and weight reduction of portable devices. However, a lithium ion battery may have a problem in safety such as deterioration in performance when charged with an overvoltage, and therefore, a charger and an overcharge protection circuit are incorporated together with the battery cell.

Hereinafter, the operation of the portable wireless device 1 configured as described above will be described. When ordinary wireless voice communication such as a mobile phone is performed, voice input from the microphone 5 is converted from analog to digital by the voice input / output unit 13 and input to the voice processing unit 14 as digital voice data. The audio processing unit 14 compresses and encodes the audio data.

The coded audio information is multiplexed with other information by the CPU 12 based on the communication protocol and output to the modem 11. The modulation and demodulation unit 11 modulates the multiplexed signal, and the modulated signal is wirelessly transmitted by the wireless unit 10 and transmitted to the wireless base station via the antenna 3.

On the other hand, a signal received from the wireless base station is wirelessly received by the wireless unit 10 via the antenna 3 and demodulated by the modem unit 11. The signal demodulated by the modem unit 11 is separated into audio information and other information by the CPU 12, and the audio information is decoded by the audio processing unit 14. The audio data decoded by the audio processing unit 14 is digital-to-analog converted by the audio input / output unit 13, amplified, and emitted from the loudspeaker 4. Although the speaker 4 is shown in FIG. 2 as an output device, the speaker 4 may output to an earphone terminal or a headphone terminal.

When the user performs an operation using the operation unit 7, the operation of the operation unit 7 is output to the CPU 12 as operation information by the operation control unit 15, and the CPU 12 analyzes the operation information and performs the operation. Perform the corresponding processing. At this time, operation guidance, various types of communication information, and information to be notified to the operator among the received information, that is, character information and image information are output to the display control unit 16. The display control unit 16 has a storage medium for temporarily storing display information therein,
The display information is converted into display data and output to the display output unit 17. The display output unit 17 outputs display data to the display unit 6, and the display unit 6 displays the display data.

The CPU 12 operates by sequentially executing the programs in the internal storage unit 18 and further operates in the internal storage unit 1.
Reference numeral 8 is also used as a rewritable storage unit, and temporarily stores processing data during operation. Portable communication device 1 main body 1a
The charging unit 2, which is detachable from the portable communication device 1, has a charging medium 21. When the charging unit 2 is attached to the main body 1a of the portable communication device 1, the charging unit 2 supplies power from the charging medium 21 to each unit via the power supply unit 20. Further, the charging unit 2
Has a slot 8 into which a card-type external expansion storage medium 9 is inserted, and operates as an expansion storage medium of the CPU 12 in the main body 1a of the portable communication device 1 when the external expansion storage medium 9 is mounted.

The main body 1a of the portable communication device 1 and the charging section 2 have terminals 22a to 22h for being detachable, and operate as power supply terminals 22c to 22f, data terminals 22a and 22h, and control terminals 22b and 22g. . In addition, the external expansion storage medium detection unit 19 is a card type external expansion storage medium 9.
Is inserted and attached to a predetermined position, this is detected, and C is detected.
Notify PU12. When the CPU 12 detects that the external expansion storage medium 9 is electrically connected, the CPU 12 reads / writes the external expansion storage medium 9 and stores, for example, music information and the like in the external expansion storage medium 9.

Therefore, when the portable communication device 1 according to the present embodiment is used as a normal portable telephone, FIG.
As shown in FIG.
If it is attached to a, it can be used as a small and lightweight portable communication terminal. On the other hand, when the charging section 2 having a slot 8 for inserting and removing the external expansion storage medium 9 is attached to the main body 1a of the portable communication device 1 when the storage section 2 is used for storing and reproducing music information by a music distribution service or the like. If the external expansion storage medium 9 is inserted and attached to the slot 8 of the charging section 2, it becomes possible to provide a storage section necessary for recording and reproducing musical sound information. That is, if the charging unit 2 is attached to the main body 1a of the portable communication device 1, it is suitable for use in a normal mobile phone that does not require recording / reproduction of music information. Suffices to be equipped with the charging section 2, and the user can selectively use it, which is convenient.

Here, the external volume of the charging unit 2 is
Since the charge medium is larger than 0, the charge medium 21 of the charge unit 2 can have a larger capacity than the charge medium of the charge unit 30. If a large-capacity charging medium is used as the charging medium of the charging unit 30, the standby time and the talk time will not be shortened even if the user enjoys recording and reproducing music. FIG. 4 is a side view showing the appearance of the mobile communication terminal according to the second embodiment of the present invention, and FIG. 5 is a functional block diagram of the mobile communication terminal. In the description of the present embodiment, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description of the overlapping portions will be omitted.

4 and 5, reference numeral 40 denotes a charging unit having a slot 8 for inserting and removing the external expansion storage medium 9. The charging unit 40 includes a battery pack detachable from the main body 1a of the portable communication device 1. It is. The charging section 40 has an external loudspeaker 41 capable of outputting a high-quality reproduced sound in addition to the function of the charging section 2 shown in FIGS. And an external audio output unit 42 for amplifying an audio output signal to be output to the external loudspeaker 41. Also, 22i, 2
Reference numeral 2j denotes a connection terminal for connecting the audio input / output unit 13 and the audio processing unit 14 inside the main body 1a and the external audio output unit 42 of the charging unit 40.

The external loudspeaker 41 and the external audio output section 42 constitute sound emitting means for loudspeaking the audio signal as a whole and emitting the sound. In the present embodiment, the portable communication device 1
In the charging unit 40 detachable from the main body 1a, the charging medium 21,
In addition to the external expansion storage medium 9 and the slot 8, an amplifying unit 42 for amplifying an audio output signal and an external loudspeaker 41 are provided. Thereby, when reproducing the musical sound information received by the musical sound distribution service or the like, by emitting the sound using the external loudspeaker 41, a higher quality than the loudspeaker 4 for reproducing the normal voice can be obtained. Audio can be played.

As described above, each of the above-described embodiments includes the charging units 2, 30, and 40 which are detachably attached to the main body 1a of the portable wireless device 1 and supply power to the main body 1a. , 40 are card type external extended storage media 9
Has a slot 8 for inserting the
The user of the portable wireless terminal 1 can use the portable wireless terminal 1 as a small and lightweight portable wireless terminal by attaching the small charging unit 30 when mainly using normal wireless communication. When recording / reproducing musical sound information by a distribution service or the like, the charging units 2 and 40 having the external expansion storage medium 9
By attaching the, it can be used without impairing the standby time and the talk time.

Further, by making the card-type external expansion storage medium 9 detachable from the charging sections 2 and 40, the musical sound information received by the musical sound distribution service or the like can be converted to the musical sound of a conventional portable headphone stereo or personal computer. The information can be reproduced even on a device that can reproduce the information, which is very convenient.

In each of the above embodiments, the portable communication terminal is applied to a wireless portable terminal. However, the present invention is not limited to the wireless communication but may be a wired communication, and may be applied to any portable communication device. It is possible. For example, PDA (Personal
Digital Assistant) and small notebook computers. In each of the above embodiments, the external storage medium 9
The tone information is stored in the external storage medium 9.
The program of the CPU 12 can be stored in the CPU 12 to upgrade the function.

That is, various specifications of the wireless portable terminal 1 can be arbitrarily changed by changing a program written in the internal storage unit 18. Recently, in order to avoid the time loss of changing the mask ROM every time the system development is debugged, the program ROM is a non-volatile memory, for example, an EPROM or an EEPROM, and the program development / correction time is greatly reduced. Therefore, if the program stored in the external storage medium 9 is downloaded and the contents of the program in the internal storage unit 18 are rewritten, it is possible to easily upgrade the function or change the function.

Further, if the received voice during absence is stored in the external storage medium 9, it is possible to realize the answering machine function. Furthermore, the circuit units constituting the wireless portable terminal, for example, the type and number of storage media and the connection method (particularly, the method of mounting the storage medium) are not limited to the above-described embodiment.

[0040]

As described in detail above, according to the present invention, it can be used as a small and lightweight portable communication terminal, and can be used without impairing the standby time and the call time.

[Brief description of the drawings]

FIG. 1 is a side view illustrating an appearance of a portable communication terminal according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram of the mobile communication terminal according to the present embodiment.

FIG. 3 is a side view showing the appearance of the mobile communication terminal when another charging unit of the present embodiment is mounted.

FIG. 4 is a side view illustrating an appearance of a portable communication terminal according to a second embodiment of the present invention.

FIG. 5 is a functional block diagram of the mobile communication terminal according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Portable radio | wireless apparatus (portable communication terminal) 1a Portable radio | wireless apparatus main body 2,30,40 Charging part (power storage part) 3 Antenna 4,41 Loudspeaker 5 Microphone 6 Display part 7 Operation part 8 Slot 9 External expansion storage medium (External Extended storage means) 10 radio section 11 modem section 12 CPU (control means) 13 audio input / output section 14 audio processing section 15 operation control section 16 display control section 17 display output section 18 internal storage section 19 external extended storage medium detection section 20 power supply Unit 21 Charging medium 22a to 22j Connection terminal 42 External audio output unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04M 11/08 H04B 7/26 VF term (Reference) 5K023 AA07 BB03 LL03 LL04 PP12 5K027 AA11 BB14 BB17 GG04 KK07 MM03 5K062 AA01 AB18 BD01 BE05 5K067 AA34 BB00 BB04 BB21 EE02 FF00 KK06 5K101 KK18 LL12 NN23 NN45

Claims (8)

[Claims] 1. A mobile communication terminal comprising: a mobile communication terminal main body; and a power storage unit detachably attached to the mobile communication terminal main body, wherein the power storage unit is readable or writable from the mobile communication terminal main body. A portable communication terminal characterized by having an external extended storage means. 2. The mobile communication terminal according to claim 1, wherein the external expansion storage unit is a card-type storage medium, and the power storage unit includes a slot into which the storage medium can be inserted and removed. 3. The mobile communication terminal according to claim 1, wherein the power storage unit further includes a sound emitting unit that loudspeaks the audio signal and emits the sound. 4. The portable communication terminal according to claim 1, wherein said external extended storage means stores tone information. 5. The portable communication terminal main body further comprises control means for controlling music information received from a music distribution center to be stored in the external extended storage means, wherein the control means, when requested by a user, The portable communication terminal according to claim 1, wherein the portable communication terminal is configured to read out the tone information stored in the external extended storage unit and reproduce the tone information as a tone. 6. The portable communication terminal according to claim 1, wherein said external extended storage means stores a program used in said portable communication terminal body. 7. The mobile communication terminal according to claim 1, wherein said external expansion storage means stores reception information received by said mobile communication terminal main body. 8. The mobile communication terminal according to claim 1, wherein the mobile communication terminal main body includes a detection unit that detects that the external expansion storage medium is mounted on the power storage unit.