JP2001016791A - Charging device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a power receiving device capable of starting use while making a user recognize a charge state of an electronic device. SOLUTION: It is determined whether or not the connection between the mobile phone and the charging device has been released (step S4). Is determined (step S7). Charge level = Lv. 1, when the Lv. Then, a sound corresponding to 1 is output (step S8).
Charge level @Lv. If 1, the charge level = L
v. It is determined whether the number is 2 (step S9). Charge level = Lv. 2, if the Lv. Then, a sound corresponding to No. 2 is output (step S10). As a result of the determination in step S9, the charge level {Lv. If it is 2,
Charge level = Lv. 3. In this case, the L
v. Then, a sound corresponding to No. 3 is output (step S11).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging device for charging an electronic device having a built-in rechargeable battery.

[0002]

2. Description of the Related Art As a conventional charging device, a charging device provided with a monitor lamp is known. When the charging device is full when the amount of charge to an electronic device such as a mobile phone is completed, the emission color of the monitor lamp (LED) changes to a predetermined color. Therefore, by removing the electronic device from the charger after the color changes to a predetermined color, the electronic device can be carried in a state of full charge.

[0003]

However, in such a charging device that displays only whether or not the battery is fully charged based on the color of the monitor lamp, the user mistakenly recognizes the color of the monitor lamp and determines that the battery is fully charged. In some cases, it is removed from the charging device and carried even though it is not. In this case, the remaining battery level is suddenly low at a place where the user is away from home, and the device cannot be used.

Also, as in the case where the user faces an urgent need to go out, the user must remove the device from the charger and carry the device while knowing that the color of the monitor lamp has not changed and the battery has not been sufficiently charged. There are times when it is inevitable. In this case, since the user cannot know the amount of charge to the device when the device is removed from the charging device, the user must start carrying the device in an uneasy state.

The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a power receiving device that allows a user to start using the electronic device while recognizing a charging state of the electronic device. Things.

[0006]

According to the first aspect of the present invention, there is provided a charging apparatus which is detachably connected to an electronic device and charges the electronic device.
Acquiring means for acquiring the state of charge of the electronic device, detecting means for detecting disconnection from the electronic device, and acquiring by the acquiring means when disconnection from the electronic device is detected by the detecting means. Notification means for performing notification according to the state of charge. Therefore, after the electronic device is connected to the power receiving device and charging is started, if the electronic device is disconnected and disconnected at an arbitrary time, a notification according to the state of charge at that time is issued. Therefore, the user can know the state of charge of the electronic device at the time of detachment from the charging device by this notification.

[0007] In the invention according to claim 2, the electronic device is portable. Therefore, when removing the electronic device from the charging device and going out with the mobile device, the user can recognize the charge state of the electronic device carried in advance. Therefore, without feeling uneasy about the state of charge,
The user can go out with the electronic device.

[0008] In the third aspect of the invention, the charging device imitates the appearance of a specific character or creature. Therefore, the user can recognize the charge state of the removed electronic device more enjoyably.

According to a fourth aspect of the present invention, there is further provided a power supply means for supplying a part of the power to be charged to the electronic device to itself. Therefore, the acquisition unit, the detection unit, the notification unit, and the like described in claim 1 can be operated by effectively using a part of the power supply to be charged in the electronic device.

Further, in the invention according to claim 5, the notification means includes an output means for outputting at least one of a voice, a display, and a vibration. Therefore, even when the electronic device is quickly removed from the charger, for example, when facing an urgent need to go out, the user can reliably recognize the charged state by voice notification.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the charging device 1 includes a mounting table 2 having a flat bottom, and an A connected to the mounting table 2.
C adapter 3. On the upper surface of the mounting table 2,
A rectangular recess 4 is provided, a speaker 5 is arranged in the center of the front surface, and LEDs 6, which can be turned on in red and green, are arranged on both sides of the speaker 5. The mobile phone 7 charged by the charging device 1 has a shape in which a lower end portion can be inserted into the concave portion 4, and a key input unit 35 including a plurality of keys is provided on a front surface of the mobile phone 7. The display unit 8 is provided on the upper part.

FIG. 2 is a block diagram showing a circuit configuration of the charging device 1. As shown in FIG. The AC / DC converter 9
It is built in the C adapter 3 and converts AC commercial power into a predetermined DC power, supplies it to each circuit unit, and is connected to the charging (V−) terminal 10 and the charging (V +) terminal 11. I have. The charging terminals 10, 11 and I /
The O port 12 is arranged on the bottom surface of the recess 4.

The I / O port 12 is connected to a control unit 14 directly and via a placement detection unit 13. The placement detector 13 is adapted to be inserted into and detached from the concave portion 4 of the mobile phone 7 by contact and non-contact with an I / O port on the mobile phone 7 side, which will be described later. It detects connection and disconnection with the telephone 7 and outputs a signal to the control unit 14. The control unit 14 controls each unit based on a program stored in the ROM 15, and is connected to an audio data ROM 16, a driver 17 for driving the LED 6, and a driver 18 for driving the speaker 5.

The ROM 15 stores a voltage when the battery of the portable telephone 7 described later is fully charged together with the program. As shown in FIG. 3, digital data is stored in the voice data ROM 16 corresponding to the charge levels “Lv.1,” “Lv.2,” and “Lv.3” of the battery of the mobile phone 7. These digital data are audio data forming the corresponding audio output contents as shown. The charge level “Lv.1”
“Lv.2” and “Lv.3” are values having a range, and the voltage level of the mobile phone 7 when the battery is fully charged is 100
%, For example, “Lv.1” = less than 40%, “Lv.1”
v. 2 "= 40% or more and less than 90%," Lv. 3 "= 90
% Or more.

FIG. 4 is a block diagram showing a circuit configuration of the portable telephone 7. As shown in FIG. In the figure, reference numeral 19 denotes a transmission / reception unit, which comprises a frequency conversion unit including a reception unit and a transmission unit, and a modem including a reception unit and a transmission unit. The reception unit of the frequency conversion unit mixes a signal received by the antenna ANT, which is input via an antenna switch for distributing transmission / reception, with a local oscillation signal of a predetermined frequency output from the PLL synthesizer, thereby obtaining a frequency of 1.9 GHz. The frequency is converted from the band to an IF (intermediate frequency) signal in the vicinity of the 1 MHz band. Further, the transmission unit of the frequency conversion unit converts a π / 4 shift QPSK modulated wave supplied from a modem described later into a PLL.
By mixing with a local oscillation signal of a predetermined frequency output from the synthesizer, the frequency is converted to a 1.9 GHz band and radiated from the antenna ANT via the antenna switch. The receiving unit of the modem includes an IF from the frequency converting unit.
The signal is demodulated and separated into IQ data to form a data string, which is transmitted to the communication control unit 20. In the transmission part of the modem,
IQ data is created from data supplied from the communication control unit 11, modulated by π / 4 shift QPSK, and transmitted to the frequency conversion unit of the transmission / reception unit 19.

The communication control unit 20 includes a transmitting side and a receiving side, and performs frame synchronization and slot data format processing. On the receiving side, at a predetermined timing, 1
After extracting data for the slot, extracting a unique word (synchronization signal) from the data to generate a frame synchronization signal, and descrambling the control data section and the audio data section, the control data is transferred to the control section 24. To the audio processing unit 21. On the transmission side, control data is added to the audio data supplied from the audio processing unit 21, and after adding scrambling and the like, a unique word and the like are added to create transmission data for one slot. It is inserted into a predetermined slot in the frame at the timing and transmitted to the modem of the transmission / reception unit 19.

The audio processing unit 21 is composed of a speech codec and a PCM codec. The speech codec performs compression / expansion processing of digital data, and includes a receiving side and a transmitting side. The receiving side decodes the ADPCM audio signal (4 bits × 8 KHz = 32 Kbps) supplied from the communication control unit 20 into a PCM audio signal (8 bits × 8 KHz = 64 Kbps), expands the signal, and outputs it to the PCM codec. The transmitting side is a PC supplied from PCM codec.
The M audio signal is compressed by encoding it into an ADPCM audio signal and output to the communication control unit 20. The PCM codec performs an analog / digital conversion process, and the transmitting side uses a P code supplied from the speech codec.
The CM audio signal is converted into an analog audio signal by D / A conversion, and is output from a speaker 22.
A / D conversion of the analog audio signal input from
It is converted into a CM signal and sent to the speech codec.

The key input unit 35 includes numeric keys for inputting a telephone number of a transmission destination (partner), a switch for on-hook / off-hook, a volume switch for changing audio output, and the like. The states of these keys and switches are supplied to the control unit 24, which controls the entire apparatus according to a predetermined program. The control unit 24 is stored in the ROM 25.
And various parameters and the like to be executed by the program are stored. The RAM 26 stores data generated under the control of the control unit 24 or is used as a working area, and its storage is held by a power supply from a battery 31 described later. The display unit 8 includes a liquid crystal display device that displays various data such as an operation mode, a telephone number, and a talk time, and an LED that indicates ON / OFF of a switch and the like. And display various data.

The oscillating circuit 29 generates an oscillating signal for causing the ringer 30 to sound and supplies the oscillating signal to the driver 28. The driver 28 controls the RAM 2 according to the control of the control unit 24.
The oscillating signal is controlled in accordance with the ringer information stored in 6 to ring the ringer 30. The battery 31 is a rechargeable secondary battery, and includes a charging (V−) terminal 32 and a charging (V +) terminal 33 that are exposed at the lower end of the housing of the mobile phone 7 and drives the above-described units. Supply power for An I / O port 34 is arranged near the charging terminals 32 and 33. The charging terminals 32 and 33 and the I / O port 34 are arranged such that the lower end of the mobile phone 7 is located in the recess 4 of the mounting table 2. When inserted, they are provided so as to come into contact with charging terminals 10 and 11 and I / O port 12 on charging device 1 side, respectively. Therefore, the mobile phone 7 is mounted on the mounting table 2.
Of the battery 31 detected by the battery monitoring unit 27, the charge level (voltage level) of the battery 31 is controlled via the control unit 24 and the I / O port 34 of the mobile phone 7 side. Can be supplied to the control unit 14 from the I / O port 12.

In the present embodiment having the above configuration, the control unit 14 of the charging apparatus 1 repeatedly executes the processing shown in the flowchart shown in FIG. That is, the placement detector 13
It is determined whether or not the mobile phone 7 is connected to the charging device 1 based on the presence or absence of the input signal from (step S1). Here, when the user inserts the lower end of the mobile phone 7 into the concave portion 4 of the mounting base 2 to charge the mobile phone 7, the charging terminals 32 and 33 and the I / O port 34 on the mobile phone 7 side.
And the charging terminals 10 and 11 and the I / O port 12 of the charging device 1 are in contact with each other. Then, the placement detection unit 13
Detects the connection of the mobile phone 7 by the contact between the I / O ports 12 and 34 and outputs the connection to the control unit 14. Thus, the control unit 14 determines that the mobile phone 7 is connected, and turns on the LED 6 in red (step S2).

On the other hand, the charging terminals 10 and 1 on the charging device 1 side
When the battery 1 contacts the charging terminals 32 and 33 of the mobile phone 7, the charging of the battery 31 is started, and the battery monitoring unit 27 detects the charging level of the battery 31 at regular intervals. The charge level detected by the battery monitoring unit 27 is determined by the control unit 24 of the mobile phone 7 and the I / O
The signal is sent to the charging device 1 via the port 34 and the I / O port 12 of the charging device 1, and is sent to the control unit 14 of the charging device 1.
Acquires this charge level (step S3).

Next, it is determined whether or not the connection between the mobile phone 7 and the charging device 1 has been released based on the presence or absence of an input signal from the placement detector 13 (step S4). If the connection is not released and the charging is continued, the charge level acquired in step S3 is compared with the voltage level stored in the ROM 15 when the battery 31 is fully charged. It is determined whether or not the battery 31 has been fully charged (step S5). Then, when the battery is fully charged, the LED 5 is turned on in green (step S6).

On the other hand, when the user pulls out the mobile phone 7 from the concave portion 4, the input signal from the placement detection unit 13 is interrupted, and the control unit 14 determines that the connection of the mobile phone 7 is released. Proceed to step S7.
Then, it is determined whether or not the charge level acquired by the processing in step S3 is “Lv.1” (step S3).
7). Charge level = Lv. If it is 1, the L
v. Digital data corresponding to the audio data ROM1
6 to operate the driver 18 to output sound from the speaker 5 (step S5).
8).

Therefore, when the battery 31 is "Lv.1"
When the mobile phone 7 is pulled out from the concave portion 4 in the state described above, the sound of “ぺ こ ぺ こ だ ～” is generated from the speaker 5, and the user can recognize that the charging is insufficient. As a result, the user is prompted to insert the mobile phone 7 into the concave portion 4 again to perform charging, and the battery 31 suddenly runs out of power when going away, and the mobile phone 7 becomes unusable. Can be prevented beforehand.

Also, as a result of the determination in step S7, the charge level {Lv. 1, the charging level = Lv.
It is determined whether the number is 2 (step S9). Charge level = Lv. 2, if the Lv. The digital data corresponding to 2 is read from the audio data ROM 16 and the driver 18 is operated to output audio from the speaker 5 (step S10). Therefore, when the battery 31 is in the “Lv.
When the speaker is pulled out of the speaker, a sound of "Keep it a little" is generated from the speaker 5, and the user can recognize that some use is possible even if the charge is not sufficient. Therefore, even in a case where the user needs to carry the mobile phone 7 that is being charged while facing an urgent need to go out, the user can carry the mobile phone 7 and go out without worry.

Further, as a result of the determination in step S9, the charge level {Lv. 2, the charge level = Lv.
3. In this case, the Lv. By reading the digital data corresponding to 3 from the audio data ROM 16 and operating the driver 18, the audio is output from the speaker 5 (step S 11). Therefore, when the mobile phone 7 is pulled out of the concave portion 4 with the battery 31 in the “Lv. 3” state, the speaker 5 emits “full, full, come on” sounds. Therefore, the user can recognize that the user battery 31 is almost fully charged and carry the mobile phone 7 without worry.

In this embodiment, as shown in FIG. 1, the mounting table 2 has a rectangular shape in a plan view. However, the mounting table 2 may have a specific character or creature shape. As shown in FIG. 6, the mounting table 2 is a specific character or creature (a mascot imitating a rabbit (animal) in FIG. 6).
The mobile phone 7 may be inserted into the concave portion 4 through the opening 41 formed in the stuffed toy N having the shape of FIG. With this configuration, the sound when the mobile phone 7 is pulled out sounds as if a character or a stuffed animal is talking, and it is possible to add interest to the charger. In addition to the sound, the LED 6 is provided inside the stuffed eyes and turned on, or the speaker 5 is provided inside a member corresponding to the nose to operate a sound output port, and a vibrator or a motor driven portion B is provided. You may make it dance and let you know.

In the present embodiment, the battery monitoring section 27 is provided on the mobile phone 7 side. However, the battery monitoring section 27 is provided on the charging apparatus 1 side, and the battery monitoring section 27 is set in the charging apparatus 1 and the battery monitoring section 27 is provided. The unit may be connected to the battery 31 to detect its charge level. Further, in the present embodiment, the present invention is applied to the mobile phone 7 which is a portable electronic device. However, if the rechargeable electronic device is a non-portable electronic device such as a rechargeable toy. It is needless to say that the present invention can be applied to a device.

[0029]

As described above, according to the present invention, when the connection with the charging electronic device is released, the notification according to the state of charge is performed, so that the user can charge the electronic device. The state of charge at the time of removal from the device can be known. Therefore, the user can start using the electronic device while recognizing the state of charge of the electronic device in advance,
It is possible to prevent a situation in which the device becomes unusable due to a sudden shortage of the remaining battery power, and it is possible to start using the device without anxiety.

Further, when the amount of charge at the time of disconnection is insufficient, the charge can be immediately resumed,
A prompt response is possible, and the start of use in a state where charging is insufficient can be effectively prevented.

Further, if the electronic device is portable, the user can carry the electronic device and go out without worrying about the state of charge.

Furthermore, if the charging device imitates the appearance of a specific character or creature, the user can more enjoyably recognize the charging state of the removed electronic device.

Since a part of the power supply to be charged to the electronic device is supplied to itself, necessary control can be performed by effectively using the part of the power supply to be charged to the electronic device. it can.

Further, since the notification including the output means for outputting at least one of the voice, the display, and the vibration is performed, as in the case of facing an urgent outing,
Even if the electronic device is quickly removed from the charger, the user can reliably recognize the state of charge by voice, display, and notification by vibration, and furthermore, the amusement by the voice creates interest. It can also be done.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a mobile phone is connected to a charging device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a charging device.

FIG. 3 is a conceptual diagram of data stored in a voice data ROM.

FIG. 4 is a block diagram of a mobile phone.

FIG. 5 is a flowchart illustrating a processing procedure of a control unit of the power receiving and charging device.

FIG. 6 is an external view of a state in which a mobile phone is connected to a charging device according to a modification of one embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 charging device 2 mounting table 3 recess 5 speaker 7 mobile phone 13 mounting detection unit 27 battery monitoring unit

Claims (5)

[Claims] 1. A charging device that is detachably connected to an electronic device and charges the electronic device, comprising: an obtaining unit that obtains a state of charge of the electronic device; and a detecting unit that detects disconnection from the electronic device. A notification unit configured to perform notification in accordance with the state of charge acquired by the acquisition unit when disconnection from the electronic device is detected by the detection unit. 2. The charging device according to claim 1, wherein the electronic device is portable. 3. The charging device according to claim 1, wherein the charging device simulates an appearance of a specific character or living thing. 4. The charging device according to claim 1, further comprising a power supply unit that supplies a part of power to be charged to the electronic device to itself. 5. The charging device according to claim 1, wherein the notifying unit includes an output unit that outputs at least one of a sound, a display, and a vibration.