TWI382735B - Mobile phone capable of preventing a battery charge due to data transmission and method thereof - Google Patents

Description

Mobile phone capable of avoiding charging due to data transmission and method thereof

The present invention is a mobile phone capable of avoiding charging by data transmission and a method thereof, which is applied to a mobile phone having a universal serial bus (USB) connection.

There are many mobile phones with USB ports on the market, which can be powered by the USB port on the computer to charge the battery in the mobile phone. Please refer to Figure 1 for a user to use a mobile phone. 11 is connected to a computer 12 for data transmission, and the connectors at both ends of a USB transmission line 13 are respectively connected to the USB port 110 of the mobile phone 11 and the USB port 120 of the computer 12, the mobile phone 11 and After the USB ports 110 and 120 of the computer 12 are electrically connected, the USB port 120 of the computer 12 can sequentially pass through the USB cable 13 and the USB port 110 of the mobile phone 11 to the mobile phone 11. The battery is charged until the user removes one end of the USB transmission line 13 from the USB port 110, 120 of the mobile phone 11 or the computer 12, so that when the computer 12 and the mobile phone 11 perform data transmission, The computer 12 can also simultaneously charge the battery in the mobile phone 11, so that the user can save the cost of charging the mobile phone 11 with a standard charger 14. Time.

According to today's mobile phone functions, the functions of the mobile phone are increasingly diversified. In addition to the basic functions of calling and sending and receiving SMS, it also includes various additional functions (such as listening to music, browsing pictures or reading essays). Therefore, users may need to use them frequently. The mobile phone is connected to the USB port of the computer for data transmission (for example, transferring the picture file, music file or other data from the computer to the mobile phone). Generally speaking, as shown in Figure 1, the user should act on the action. The battery inside the telephone 11 is charged, and the USB transmission line 13 or the standard charger 14 can be selected for charging. When the computer 12 and the mobile phone 11 are connected by using the USB transmission line 13 for data transmission, the computer 12 is inevitably transmitted. The USB transmission line 13 charges the battery inside the mobile phone 11. However, when data transmission is performed, most of the battery of the mobile phone 11 does not reach the low battery level that needs to be charged, but at this time, the user cannot Select to transfer data only without charging. Because the rechargeable battery on the market has a certain degree of memory characteristics, if the battery is often charged without fully discharging the battery, the power capacity of the battery will become smaller and smaller, and the charging and discharging of any rechargeable battery. There are certain restrictions on the number of times. After a certain number of times of charging and discharging, the battery can no longer supply power and be charged. Frequent charging will accelerate the aging of the battery and greatly shorten the service life of the battery. Therefore, how can the mobile phone and the computer be used? When data transmission is performed, it is an important subject of the present invention to effectively prevent the computer from frequently charging the battery of the mobile phone to greatly extend the service life of the battery.

The object of the present invention is to provide a mobile phone and a method thereof for avoiding charging by data transmission, the mobile phone comprising a display, an input device (such as a button portion or a touch panel), and a universal serial bus ( Universal Serial Bus (USB), a processor, a charging circuit, a data storage unit and a battery. The USB port can be connected to a USB port of a computer through a USB cable. The data storage unit is connected to The processor is connected to the USB port and the battery, and the charging circuit further includes a switching unit, the switching unit is connected to the processor, and the processor can pass the input according to the user. The option input by the device sends an activation signal to the switching unit to activate the charging circuit, so that the computer connected to the mobile phone can charge the battery through the charging circuit or send a blocking signal to the switching unit to The charging circuit is turned off so that the battery cannot be charged through the charging circuit with the computer.

Another object of the present invention is that when the mobile phone is powered on, when the mobile phone detects that its USB port is electrically connected to the USB port on the computer, the display indicates whether charging is performed. The option is such that the user can input one of the selected options through the input device, and the processor will determine whether the option input by the user is charging, and if it is determined that the option selected by the user is to perform charging, the processor Sending a start signal, causing the switching unit to activate the charging circuit, so that the computer can charge the battery through the charging circuit, and if it is determined that the option selected by the user is not to be charged, the processor sends a blocking signal. The switching unit is turned off to enable the computer to charge the battery through the charging circuit. At this time, the USB port of the mobile phone can only transmit data with the computer. In this way, when the USB port of the mobile phone is connected to the USB port of the computer through the USB transmission line, the user can select only data transmission without charging the battery of the mobile phone, in the mobile phone. When the data is transmitted with the computer, the computer is frequently prevented from frequently charging the battery of the mobile phone to greatly increase the service life of the battery, and the mobile phone can still transmit data with the computer during charging. The received data is stored in the data storage unit, so the method can also retain the advantages of simultaneous data transmission and charging in the prior art.

In order to make the review committee members have a better understanding and understanding of the purpose, technical features and effects of the present invention, an embodiment will be given, and the drawings will be described in detail as follows:

The present invention is a mobile phone capable of avoiding charging by data transmission and a method thereof. In a preferred embodiment of the present invention, as shown in FIG. 2, the mobile phone 2 is provided with a processor 21 and a charging circuit. 22, a battery 23, a universal serial bus (USB) port 24, a data storage unit 25, a display 26 and an input device 27, the processor 21 and the charging circuit 22, USB The port 24, the data storage unit 25, the display 26 and the input device 27 are connected to transmit signals or data to the modules (ie, the charging circuit 22, the data storage unit 25, the display 26 and the input device 27), and receive each The signal or data transmitted from the module is connected to the USB port 24 via an input line 223, and is connected to the battery 23 via an output line 224 for receiving power. Alternatively, the input device 27 can be a button portion or a touch panel. After the user presses the input device 27, the input device 27 can transmit an input signal to the processor 21 for the processor 21. can After receiving the input signal, performing corresponding actions (such as dialing, transmitting a message, etc.), and displaying related pictures (such as a phone book, a message content, etc.) on the display 26, the USB connection The 埠24 can be connected to another USB port 31 of a computer 3 through a USB transmission line 5 to receive power or data from the computer 3, and when the mobile phone 2 is connected to the computer 3 via the USB transmission line 5 The processor 21 can receive the data from the computer 3 and transfer it to the data storage unit 25 for storage, or extract data from the data storage unit 25, and transmit the data to the computer 3, and the battery 23 can The power required for the mobile phone 2 to operate normally is supplied.

Referring to FIG. 2, in the mobile phone 2 of the present invention, the charging circuit 22 is further provided with a switching unit 220 for controlling whether the charging circuit 22 can transmit power to the battery 23. In the embodiment, the switching unit 220 is taken as an example of an ISL6294IRZ chip, and the circuit diagram of the ISL6294IRZ chip is introduced in FIG. 3 to clearly describe the implementation process of the present invention. However, it is familiar with the related art of the present invention. It should be understood that the method concepts of the present invention described herein can be implemented using other hardware architectures, and are not limited to the aforementioned ISL6294IRZ wafers. Referring to FIGS. 2 and 3, the switching unit 220 includes a power input terminal (VIN) 2201, a power input indicating terminal (PPR) 2202, a control terminal (EN) 2203, and a power output terminal (BAT) 2204. The power input terminal 2201 is connected to the input line 223 of the charging circuit 22 to receive power from the USB port 24, and the power input indicating terminal 2202 is connected to the processor 21 for inputting power. When receiving the power, the terminal 2201 can transmit a power signal to the processor 21, so that the processor 21 can determine that the USB port 24 has received power, and the control terminal 2203 is connected to the processor 21, and Receiving a signal from the processor 21 (eg, high potential, low potential, etc.), the power output 2204 is connected to the output line 224, so that the battery 23 can receive the power of the charging circuit 22, thus, When the power input terminal 2201 has received the power, and the power input indication terminal 2202 has transmitted a power signal to the processor 21, if the control terminal 2203 receives a high-level signal from the processor 21, then The switching unit 220 performs transmission Source behavior (eg, starting the ISL6294IRZ chip) so that the power output 2204 can transmit power to the battery 23 via the output line 224. If the control terminal 2203 receives a low potential signal from the processor 21, then The switching unit 220 performs an interrupt power supply behavior (eg, turning off the ISL6294IRZ chip) so that the power output terminal 2204 does not perform the power transmission operation.

As shown in FIGS. 2 and 3, the mobile phone 2 is powered on, and the processor 21 receives the power signal of the switching unit 220 of the charging circuit 22 to determine the USB port 24 When the USB port 31 of the computer 3 has been electrically connected, the processor 21 displays a selection form on the display 26 and presents an option of charging for the user to select. After the input device 27 inputs the option of [charge], the input device 27 transmits an input signal including the content for charging to the processor 21. After receiving the input signal, the processor 21 inputs the user according to the input. The option of sending a start signal (eg, high potential) to the control terminal 2203 of the switching unit 220 of the charging circuit 22, causing the switching unit 220 to perform a transmission power behavior, and starting the power output terminal 2204 of the switching unit 220 ( That is, the charging circuit 22 is activated, so that the computer 3 can sequentially charge the battery 23 through the USB port 31, the USB transmission line 5, the USB port 24 of the mobile phone 2, and the charging circuit 22. If the user inputs the option of [no charging] through the input device 27, the input device 27 transmits an input signal including the content not to be charged to the processor 21, and the processor 21 receives the input. After the signal, a blocking signal (eg, a low potential) is sent to the control terminal 2203 of the switching unit 220 of the charging circuit 22 according to the option input by the user, so that the switching unit 220 performs the power interruption behavior and turns off the The power output 2204 of the switching unit 220 (i.e., the charging circuit 22 is turned off) is such that the computer 3 cannot charge the battery 23 in the manner described above. The terminology of [charging] or [not charging] mentioned in this embodiment is a clear description of the implementation process of the present invention, and is not a limitation of the present invention. In actual implementation, the operator can adjust itself. And change the terminology of the option, but the main meaning of the option term is that the user can choose whether or not to charge through the charging circuit.

In order to clarify the implementation steps of the present invention, the steps included in the embodiment of the method are described in detail below. Referring to Figures 2, 3 and 4, the mobile phone 2 is turned on, and the processing is performed. The device 21 performs the following steps: (301) determining whether the power signal transmitted by the power input indication terminal 2202 of the switching unit 220 of the charging circuit 22 is received, and if yes, proceeding to step (302), and if not, returning to the step (301); (302) displaying an option of "whether charging is performed" through the display 26, performing step (303); (303) receiving an input signal transmitted by the input device 27, performing step (304); (304) Determining whether the input signal is an option of "charging", if yes, proceeding to step (305), if not, proceeding to step (306); (305) transmitting an activation signal to the control of the switching unit 220 of the charging circuit 22 In the terminal 2203, the switching unit 220 is configured to perform transmission power to activate the charging circuit 22, so that the power of the USB port 24 can pass through the input line 223, the power input terminal 2201, the switching unit 220, the power output terminal 2204, and the like. Output The circuit 224 charges the battery 23; and (306) transmits a blocking signal to the control terminal 2203 of the switching unit 220 of the charging circuit 22, causing the switching unit 220 to perform an interrupt power supply behavior to turn off the charging circuit 22 Therefore, the USB port 24 cannot charge the battery 23.

In addition, in the foregoing implementation step, regardless of whether the mobile phone 2 is in a charging state, the user can still transmit data to the mobile phone 2 and the computer 3 through the USB transmission line 5, and the processor 21 can The received data is stored in the data storage unit 25, so that when the user wants to make the mobile phone 2 and the computer 3 only transmit data, the computer 3 does not charge the battery 23 in the action. When the telephone 2 and the computer 3 perform data transmission, the computer 3 can be effectively prevented from frequently charging the battery 23 of the mobile phone 2 to greatly increase the service life of the battery 23. Further, the computer 3 is on the mobile phone 2 During the charging, the mobile phone 2 can still transmit data to the computer 3 through the USB port 24, the USB transmission line 5 and the USB port 31, and store the received data in the data storage unit 25. Therefore, the method of the present invention enables the user to select only data transmission on the mobile phone 2, or select to perform charging, and can also perform data transmission simultaneously during charging, so that the present invention can have both prior art Time saving effect.

The above is only the preferred embodiment of the present invention, but the scope of the claims of the present invention is not limited thereto, and those skilled in the art can easily think according to the technical contents disclosed in the present invention. And equivalent changes shall be made without departing from the scope of protection of the present invention.

2. . . Mobile phone

twenty one. . . processor

twenty two. . . Charging circuit

220. . . Switching unit

2201. . . Power input

2202. . . Power input indicator

2203. . . Control terminal

2204. . . Power output

223. . . Input line

224. . . Output line

twenty three. . . battery

24, 31. . . USB port埠

25. . . Data storage unit

26. . . monitor

27. . . Input device

3. . . computer

5. . . USB transmission line

Figure 1 is a schematic view showing a conventional mobile phone and a computer connected by a USB transmission line;

Figure 2 is a preferred embodiment of the present invention;

Figure 3 is a circuit diagram of the switching unit of the present invention; and

Figure 4 is a schematic illustration of the steps of the process of the invention.

Claims (7)

A method for avoiding charging by data transmission, the method being applied to a mobile phone having a universal serial bus connection, the mobile phone comprising a processor, a charging circuit, a battery and a universal serial bus connection The charging circuit is connected to the processor, the battery, and the universal serial bus bar, and a switching unit is disposed in the charging circuit to control whether the charging and the circuit transmit power to the battery. When the universal serial bus connection is electrically connected to a general-purpose serial bus of a computer by a transmission line, the method is applied to the processor, and the method includes the following steps: when receiving the charging circuit After a power input indicator of the switching unit transmits a power signal, the display on the display includes at least one option of not charging; receiving an input signal sent by an input device to select an option by the user; And when the input signal is the option of not charging, the charging circuit is turned off. The method of claim 1, wherein the method for charging by data transmission is avoided, wherein when receiving the input signal for charging, the processor transmits a start signal to a control end of the switching unit to activate the charging circuit. So that the computer can charge the battery through the charging circuit. The method of claim 1, wherein the method of charging the data transmission is avoided, and if it is determined that the input signal is not received, the processor transmits a blocking signal to a control end of the switching unit to close. The charging circuit prevents the computer from charging the battery through the charging circuit. A mobile phone capable of avoiding charging by data transmission, comprising: a universal serial bus connection port, which can be electrically connected to another universal serial bus of a computer by a transmission line; a battery is supplied The power required by the mobile phone; a display for displaying at least one option for not charging; an input device capable of generating and transmitting an input signal after being selected by a user; a charging circuit Connected to the universal serial bus bar via an input line, and an output line is connected to the battery, and the charging circuit is further provided with a switching unit, the switching unit includes a power input end and a power input indicating end a control terminal and a power output terminal, wherein the power input terminal is connected to the input line to receive the power transmitted by the input line, and the power input indication end is connected to a processor to be at the power source When the input end receives the power, the power signal is transmitted to the processor, and the control end is connected to the processor to Receiving a plurality of signals transmitted by the processor and controlling opening and closing of the charging circuit, the power output end is connected to the output line to transmit power to the output line; and the processor is respectively charged with the charging The circuit, the input device and the display are connected to display the option of not charging on the display in a state in which the power signal is received, and the option of receiving the non-charging transmitted by the input device corresponds to The input signal is turned on according to the content of the input signal to turn off the charging circuit. The mobile phone capable of avoiding charging by data transmission as described in claim 4, wherein when the processor receives the input signal as an option for charging, the processor sends a start signal to the control unit. Ending to activate the charging circuit to enable the computer to charge the battery through the charging circuit. The mobile phone capable of avoiding charging by data transmission as described in claim 5, wherein the processor sends out the input signal and determines that the input signal includes content that is not charged, and the processor sends out A blocking signal is applied to the control terminal of the switching unit to turn off the charging circuit, so that the computer cannot charge the battery through the charging circuit. A mobile phone capable of avoiding charging by data transmission as claimed in claim 5 or 6, wherein the universal serial bus connection of the mobile phone is connected to another universal serial bus of the computer, and the electrical connection is established. The mobile phone and the computer can transmit data through the universal serial bus, and the data transmitted by the computer to the mobile phone can be stored in a data storage unit of the mobile phone.