KR20040049225A - Functional battery pack and Mobile communication terminal combined with the same - Google Patents

Abstract

PURPOSE: A mobile communication terminal combined with a functional battery pack is provided to enable data to be transceived between a mobile communication terminal body and a battery pack, and to modify a body mold to a minimum, thereby supporting an additional function of the battery pack. CONSTITUTION: A battery pack device comprises as follows. At least one battery cell(300) supplies DC power to a mobile communication terminal body(10) through a power supplying terminal(50). An additional circuit(500) supplies an additional function to the mobile communication terminal body(10). A controller(100) transceives data with an outer portion. The controller(100) comprises as follows. An additional function processor(110) controls the additional circuit(500). A communicator(120) transceives data with the mobile communication terminal body(10). The communicator(120) comprises as follows. A communication controller(121) configures the processed data in transmission format, and supplies the received data to the additional function processor(110). A modulator/demodulator(123) modulates/demodulates the data. A transceiver(125) transceives the data to be modulated or demodulated.

Description

Functional battery pack and Mobile communication terminal combined with the same}

The present invention relates to a mobile communication terminal, and more particularly, to a mobile communication terminal having a dedicated circuit necessary for supporting additional functions, such as karaoke, disease diagnosis, skin care, etc., in a battery pack. The present invention is applicable to a portable terminal having a self-control function such as, for example, a mobile phone, a personal digital assistant (PDA), or even an MP3 player, and which is detachably coupled to a battery pack.

The idea of incorporating additional option circuits into the battery pack has been proposed to extend the functionality of mobile communication terminals. Japanese Patent Laid-Open No. 9-270836, published October 14, 1997, discloses an additional device implemented with a radio circuit embedded in a battery pack detachably coupled to a mobile communication terminal. In addition, Korean Patent Application Publication No. 2001-19664 filed by Kim Tae-jin and published March 15, 2001, includes an MP3 codec and a flash memory module in a battery pack of a mobile communication terminal, and controls audio using a user interface of the mobile communication terminal. The playback apparatus is described.

In this regard, the present applicant has a battery pack device which can be combined with a portable communication terminal to support low frequency treatment, ultrasound cosmetic treatment, bioimpedance measurement, etc. , 2002-52995, 2002-52994. These devices incorporate the necessary probes and associated driving circuits in the battery pack, communicate with the mobile communication terminal body, and control the circuits in the battery pack by an application program executed in the mobile communication terminal to support the above-mentioned functions.

Figure 1 schematically shows the appearance of the cosmetic treatment device described as an embodiment in the above-mentioned prior patent application 2002-53004. This embodiment relates to a mobile phone with ultrasound and low frequency treatment functions.

This embodiment is provided with electrodes for ultrasound / low frequency treatment on the surface of the battery pack. The user selects an ultrasound therapy menu on the mobile communication terminal, selects an appropriate level, and commands to start. Subsequently, when the ultrasonic electrode comes into contact with the skin such as the face, the contact is detected and ultrasonic waves are provided to the electrode. The first control unit 100 and the second control unit 800 transmit and receive data through the interface 30, and the first control unit 100 according to the command from the second control unit 800 and the low frequency driving unit 520 and low frequency. The driving unit 510 is driven.

Such a multifunctional composite battery pack device requires communication with the main body. An application program that controls the user interface of the main body and runs in, for example, a virtual machine based environment, needs to transmit and receive data to and from the battery pack device. For example, the main body should transmit a control command to the battery pack device and receive the data calculated accordingly.

However, in order to have a separate terminal, the mold of the mobile communication terminal must be modified, which is expensive. In addition, the current mobile communication terminal is a very compact structure, the addition of a relatively large component to this structure is very burdensome.

The present invention has been made to solve such a problem, and an object of the present invention is to minimize mold modification and component addition in a mobile communication terminal detachably coupled with a battery pack including a dedicated circuit for additional functions. .

1 is a block diagram schematically illustrating the overall structure of the invention filed by the inventor.

Figure 2 schematically shows the overall configuration of a mobile communication terminal according to an embodiment of the present invention.

3A shows an appearance of a transceiver 825 according to the first embodiment of the present invention.

3B schematically shows the configuration of the modulation / demodulation unit 823 and the transceiver unit 825 in this embodiment.

<Description of the symbols for the main parts of the drawings>

10: mobile phone body 20: battery pack

100: first control unit 110: additional function processing unit

120: communication unit 121: communication control unit

123: variation demodulator 125: transceiver

200: keypad 300: battery cell

400; Display part 500: additional circuit part

600: wireless communication unit 800: second control unit

810: additional function processing unit 820: communication unit

821: communication control unit 823: change and demodulation unit

825: transceiver unit 830: main control unit

Battery pack device according to an aspect of the present invention for achieving the above object is:

A battery pack device for a mobile communication terminal, the device comprising

At least one battery cell for supplying DC power to the mobile communication terminal body through a power supply terminal, an additional circuit unit providing an additional function to the mobile communication terminal main body side, and controlling the operation of the additional circuit unit to transmit and receive data to and from the outside. Including a control unit,

The control unit includes an additional function processing unit for controlling the additional circuit unit, a communication unit for transmitting and receiving data with the mobile communication terminal body,

Wherein the communication unit configures the data processed by the additional function processing unit in a transmission format and supplies a data received from the outside as an operation command to the additional function processing unit, and modulates and demodulates data to or from the communication control unit. And a transmission / reception unit for transmitting and receiving the modulated data and the data to be demodulated or demodulated.

According to this aspect of the present invention, the battery pack device according to the present invention has an advantageous advantage of freely modifying a transceiver that is exposed in appearance by adding a simple modulation / demodulation circuit without being directly connected thereto despite being in close communication with the mobile communication terminal. do.

According to an additional aspect of the present invention, the transceiver includes a choke filter connected between a battery cell and a power terminal, and a capacitive element connected at one end on a path branched between the choke filter and a power terminal to block direct current. It is characterized by.

According to this aspect of the present invention, the battery pack device according to the present invention integrates a power terminal and a communication terminal, adds only a very simple analog element therein without adding a terminal for transmitting / receiving at all, and has a relatively very low level. By adding only the modulation and demodulation unit, the communication has an advantageous advantage.

According to another additional aspect of the invention, the transceiver is characterized in that the transformer is arranged in a width to face the body coupling surface of the battery pack.

According to this aspect of the present invention, the battery pack device according to the present invention attaches transformers in a width direction close to the opposite surface of the battery pack and the main body without modifying the mold at all for data transmission and reception, and inductive coupling between these transformers. The data is communicated by means of adding only a very simple analog element and only a relatively low level modulation and demodulation unit. In addition, according to the auxiliary aspect, since the two transformers are installed in close proximity to the modulator demodulation it is possible to use a relatively low frequency FM system.

According to another additional aspect of the present invention, the modulation and demodulation unit is a Bluetooth RF transceiver module.

According to this aspect of the present invention, the battery pack device according to the present invention has an advantage of minimizing additional circuitry and no modification of the main body mold by being connected to the multi-point communication means already adopted in the existing mobile communication terminal.

According to another additional aspect of the present invention, the transceiver is an infrared transceiver which is installed in the opening formed in the opposite surface of the main body.

According to this aspect of the present invention, the battery pack device according to the present invention has an advantage of minimizing additional circuitry and minimizing modification of the body mold.

According to another additional aspect of the present invention, the transceiving unit is characterized in that it comprises a connecting pin protruding elastically supported in electrical contact with the electrode plate on the main body side.

DETAILED DESCRIPTION Hereinafter, the foregoing and further aspects of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce.

Figure 2 schematically shows the overall configuration of a mobile communication terminal according to an embodiment of the present invention. As shown, the mobile communication terminal according to the preferred embodiment of the present invention includes a mobile phone body 10 and a battery pack 20.

The mobile phone main body 10 includes a keypad 200, which is a configuration of a typical mobile phone, a display unit 400, for example, a liquid crystal display, a wireless communication unit 600, for example, a CDMA communication module, and a main control unit for controlling them. 830, and a power supply for processing the DC power supplied from the battery pack through the power supply terminal to supply to the entire system. Since such a configuration is well known before the filing date of the present invention, a detailed description thereof will be omitted.

Furthermore, according to a characteristic aspect of the present invention, the mobile phone main body 10 includes an additional function processor 810 for processing an additional function of the battery pack, and a communication unit 820 for transmitting and receiving data with the battery pack device.

The additional function processing unit 810 is actually implemented by program code written based on a virtual machine for a mobile communication terminal such as, for example, a general virtual machine (GVM) and a BREU. For example, the display unit 400 Transmitting a command to the battery pack 20 through the communication control unit 821 to provide a menu and receiving a selection from the keypad 200 to start a corresponding control, and in the case of a diagnostic apparatus, from the battery pack 20. An operation mainly related to a user interface is controlled, such as receiving and processing measured data values, displaying them on the display unit 400, and outputting them.

The communication unit 820 configures the data processed by the additional function processing unit 810 in a transmission format, and provides a communication control unit 821 for supplying data received from the battery pack 20 to the additional function processing unit 810. And a demodulation unit 823 for demodulating and demodulating data to and from the communication control unit 821, and a transceiver unit 825 for transmitting and receiving the modulated data or the data to be demodulated.

In the preferred embodiment, the additional function processing unit 810, the communication control unit 821, and the main control unit 830 are all implemented as program codes, and are provided by a single microprocessor in the main control chip originally built in the mobile phone main body. Is executed.

Hereinafter, a battery pack device 20 according to an embodiment of the present invention will be described with reference to FIG. 2.

In this embodiment, the battery pack 20 provides a plurality of battery cells 300 for supplying DC power to the mobile phone main body 10 through the power supply terminal 50, and provides additional functions to the mobile phone main body 10. The additional circuit unit 500 and the first control unit 100 controls the operation of the additional circuit unit 500 and transmits and receives data with the outside.

Since the battery cell 300 and the power supply terminal 50 have a conventional configuration, description thereof will be omitted. The additional circuit unit 500 includes circuits essential for implementing functions such as music reproduction, treatment, diagnosis, and the like. These include, for example, actuators or sensors such as probes, electrodes, analog circuits which may be amplification circuits or oscillation circuits necessary to supply drive signals to or from them, and analog digital converters and simple It may include a digital logic circuit. One embodiment of such an additional circuit can be seen in the prior art of FIG.

As shown in FIG. 2, the first control unit 100 includes an additional function processing unit 110 for controlling the additional circuit unit 500, and a communication unit 120 for transmitting and receiving data with the mobile phone main body 10. The additional function processing unit 110 interprets a command from the mobile phone main body 10 received through the communication unit 120 to directly control the hardware of the additional circuit unit 500 or, for example, in the case of a diagnostic apparatus, in the additional circuit unit 500. The measured data may be processed and the result may be transmitted to the mobile phone main body 10 through the communication unit 120. Alternatively, the sound source data is read and decompressed from the flash memory included in the additional circuit unit 500 of the music reproducing apparatus and transmitted to the main body 10 through the transceiver 120, and the operation command of the main body 10 is transmitted and received. Received through the unit 120 may transmit a list of sound source files or play or delete the corresponding file accordingly.

Here, the communication unit 120 configures the data processed by the additional function processing unit 110 in a transmission format, and provides a communication control unit 121 for supplying data received from the outside to the additional function processing unit 110 as an operation command; And a demodulation unit 123 for demodulating and demodulating data to or from the communication control unit 121, and a transceiver 125 for transmitting and receiving the modulated data or data to be demodulated.

In the preferred embodiment, the logic of the communication control unit 121 is mostly implemented in software in the microprocessor, and uses one or two serial ports integrated in the processor. Therefore, in practice, most of the logic of the additional function processing unit 110 and the communication control unit 121 is implemented by program code executed by the same processor. In addition, the modulation / demodulation unit 123 may be implemented by a simple analog circuit or a small single chip.

Hereinafter, respective embodiments of the modulation / demodulation unit 823 and the transceiver unit 825 according to the advantageous aspects of the present invention will be described in detail.

3A shows the appearance of a transceiver 825 according to the first embodiment of the present invention, and FIG. 3B schematically shows the configuration of the modulation / demodulation unit 823 and the transceiver 825 in this embodiment.

As shown in FIG. 3A, the transceiver 825 according to the first embodiment of the present invention does not include a separate communication interface terminal, and a power supply terminal 50 between the battery pack 20 and the mobile phone main body 10. Use as a communication interface terminal. This is a kind of communication using a power line or a battery is a direct current because there is little power line noise and is very short range, it can be implemented in a relatively simple circuit.

As shown in FIG. 3B, the transmitter / receiver 125 of the battery pack 20 side includes a choke filter 315 connected between the battery cell 300 and the power supply terminal 31, and the choke filter. It is composed of a capacitive element such as, for example, a capacitor 316, one end of which is connected on the branched path between the 315 and 31 and the power supply terminal to block direct current.

As shown, in the present embodiment, the transceiver 825 of the mobile phone main body 10 side includes a choke filter 311 connected between the power supply unit 820 and the power terminal 32, the choke filter 311 and the power terminal. It is composed of a capacitive element such as, for example, a capacitor 312, one end of which is connected on a branched path between the 32 to block direct current.

The choke filters 311 and 315 are added to block the communication data to remove noise from the DC power supply, and the capacitor 312 is added to block the DC component. Since the modems 313 and 317 are modulation and demodulation circuits, but are actually very short-range communication, the modems 313 and 317 can be implemented only by separating transmission / reception data without additional modulation / demodulation. The communication between the battery pack 20 and the main body 10 may be a single line except for a data ground line in the full duplex mode. In this case, separate modulation and demodulation in the frequency domain is required for the transmission and reception separation. In the case of half duplex communication using only one terminal, the separate demodulation circuit as well as the modulation / demodulation circuit are possible only by wiring. In this case, transmission and reception can be separated by time division in software.

Therefore, in the present invention, the modulators 123 and 823 should not be construed as being limited to general modulator demodulation circuits, but are broader than this in a comprehensive meaning if analog signals are prepared for transmission / reception even if the actual modulation and demodulation are not necessarily performed. Should be interpreted. Since only two terminals can be provided on the power supply line, separate transmission and reception data can be used, one for the data line and the other for the control signal.

The battery pack apparatus according to the present embodiment integrates a power supply terminal and a communication terminal to communicate by adding only a very simple analog element and only a relatively low level modulation and demodulation unit without adding a terminal for transmitting / receiving at all. This has the possible advantageous advantages.

4 schematically shows the configuration of the transceivers 825 and 125 according to the second embodiment of the present invention. In the present exemplary embodiment, the transceivers 125 and 820 are transformers 322 and 321 disposed in a width direction to face the main body coupling surface of the battery pack 20. Here, the transformer means at least one pair of coils that are wound several times that can be transmitted in a space in which an electrical signal is spaced by inductive coupling, and metallic magnetic cores are difficult to share between these coils.

In a preferred embodiment, the transformer is in the form of a coreless coil bundle wound multiple times, integrated by a resin or the like to maintain a constant shape and improve insulation between coils, and to increase the thickness of the mobile phone more than necessary. It is manufactured in the form of hollow foil. The transformer is fixed in the width direction in order to maximize the inductive coupling between the pair of coils in the region of the cell phone body 10 opposite the battery pack 20. Similarly, in order to maximize the inductive coupling between the coil pairs, the battery pack 20 is fixed such that the transformers are built in a width direction in an area of the opposite surface of the main body 10 so that the transformers can accurately face each other when the battery pack and the main body are combined. .

In the present embodiment, the modulation and demodulation units 123 and 823 adopt a kind of FM system for modulating digital data into two frequencies. From this, the digital signal can be demodulated by software judgment after passing through a binarization circuit such as a frequency detecting device, such as a PLL or Schmitt trigger.

The battery pack apparatus according to the present embodiment attaches transformers in a width direction close to the opposite surface of the battery pack and the main body without modifying the mold at all for data transmission and reception, and communicates data by inductive coupling between these transformers. By adding only a very simple analog device and adding only a relatively very low level modulation and demodulation, the communication is advantageous. In addition, according to the auxiliary aspect, since the two transformers are installed in close proximity to the modulator demodulation it is possible to use a relatively low frequency FM system.

In the mobile communication terminal according to the third embodiment of the present invention, the modulators 123 and 823 are Bluetooth RF transceiver modules, and the transceivers 125 and 820 are configured with a helical antenna embedded in a pack based on a ceramic dielectric. .

Recently, Bluetooth modules have been embedded in the mobile terminal at the chip level or the terminal level. In Bluetooth communication, the Bluetooth module 340 provides a wireless link for communicating data with the battery pack 20. Bluetooth communication employs GFSK modulation in the 2.4 GHz band. There are other protocol stacks for channel communication and data and voice, but in this embodiment, only the GFSK modulation and demodulation unit is adopted in the Bluetooth module, and the digital data is directly inputted and outputted to the GFSK modulation and demodulation unit of the Bluetooth module.

Recently, as the GPS and Bluetooth functions are embedded in the mobile communication terminal, an ultra-small antenna technology for this has been developed. Prior arts have been known for antennas that support both Bluetooth and GPS simultaneously with one antenna in the form of a helical conductor over the surface of a rectangular rod-shaped ceramic dielectric. The present invention is not limited thereto, but it is preferable to use an antenna already built in an existing mobile phone.

According to this aspect of the present invention, the battery pack device according to the present invention has an advantage of minimizing additional circuitry and no modification of the main body mold by being connected to the multi-point communication means already adopted in the existing mobile communication terminal.

In the mobile communication terminal according to the fourth embodiment of the present invention, the transceivers 125 and 825 are infrared ray transceivers installed in the openings formed on the opposite surfaces of the main body, and the modulation and demodulation units 123 and 823 are constituted by a single chip for IR driving. do. An IR driving chipset supporting two-way communication is commercially provided before the filing date of the present invention. Mechanically, a transparent opening window is provided on the battery pack opposing surface of the main body and the same opening window is also provided on the corresponding surface of the battery pack, and the IR light emitting element is mounted thereon.

In the mobile communication terminal according to the fourth embodiment of the present invention, the transceivers 128 and 825 are provided with electrode plates placed on the main body side, and connecting pins protruding elastically supported so as to be in electrical contact with the electrode plates on the battery pack side. It is characterized by including. As shown in FIG. 5, in general, the electrical connection of the battery pack is provided with a resilient supporting protrusion electrode on the main body side and an electrode plate on the battery pack side. However, in order to minimize mold modification on the main body side, it is relatively easy to install the electrode plate on the main body side, which is relatively easy to install and occupy little mechanical space, and when the elastic support connection pin is installed on the battery pack side, the main body side is minimally modified. This makes it easier to apply new technologies.

As described in detail above, the present invention provides an excellent effect that can support additional functions of the battery pack with minimal or no modification of the mold of the mobile communication terminal body, and only minimal hardware is added or no addition at all. There is.

Although the invention has been described with reference to the examples presented, it will be apparent to those skilled in the art that a wide variety of modifications are possible without departing from the scope of the invention. Accordingly, the invention will be construed by the claims, which are intended to cover such modifications.

Claims (13)

A battery pack device for a mobile communication terminal, the device comprising: At least one battery cell for supplying DC power to a mobile communication terminal through a power supply terminal; An additional circuit unit for providing an additional function to the main body of the mobile communication terminal; And a controller for controlling the operation of the additional circuit unit and transmitting and receiving data to and from the outside. An additional function processing unit for controlling the additional circuit unit; Communication unit for transmitting and receiving data with the mobile communication terminal body, wherein the communication unit: A communication controller configured to configure the data processed by the additional function processor in a transmission format and supply data received from the outside to the additional function processor as an operation command, and a modulation / demodulator for demodulating and demodulating data to or from the communication controller; And a transceiver configured to transmit and receive the modulated data or the data to be demodulated. The method of claim 1, wherein the transceiver unit: A choke filter connected between the battery cell and the power terminal, And a capacitive element connected at one end on a path branched between the choke filter and a power supply terminal to block a direct current. The battery pack apparatus of claim 1, wherein the transceiver is a transformer disposed in a width direction so as to face a main body coupling surface of the battery pack. The battery pack apparatus of claim 3, wherein the modulation and demodulation unit is a relatively low frequency FM system. The battery pack device of claim 1, wherein the modulation and demodulation unit is a Bluetooth RF transceiver module. The battery pack apparatus of claim 1, wherein the transceiver is an infrared transceiver configured in an opening formed on an opposite surface of the main body. The battery pack apparatus of claim 1, wherein the transceiver includes a connection pin protruding elastically on the main body side so as to be in electrical contact with the electrode plate. A mobile communication terminal comprising a keypad, a display unit, a wireless communication unit, and a main control unit for controlling the same, A power supply unit which processes the DC power supplied from the battery pack through the power supply terminal and supplies the same to the entire system; An additional function processing unit for processing an additional function of the battery pack; A communication unit for transmitting and receiving data with the battery pack device, wherein the communication unit: A communication control unit for configuring the data processed by the additional function processing unit in a transmission format and supplying data received from the battery pack to the additional function processing unit, a modulation demodulation unit for demodulating and demodulating data to or from the communication control unit, And a transceiver for transmitting and receiving the data or the data to be demodulated. The method of claim 8, wherein the transceiver unit: A choke filter connected between the power supply and the power terminal, And a capacitive element connected at one end on a path branched between the choke filter and a power supply terminal to block direct current. The mobile communication terminal of claim 8, wherein the transceiver is a transformer disposed in a width direction so as to face the battery pack coupling surface of the main body. The mobile communication terminal of claim 10, wherein the modulation and demodulation unit is a relatively low frequency FM system. The mobile communication terminal of claim 8, wherein the modulation and demodulation unit is a Bluetooth RF transceiver module. The mobile communication terminal of claim 8, wherein the transceiver is an infrared transceiver configured in an opening formed on an opposite surface of the battery pack.