TW201510778A - Power-free wireless keyboard - Google Patents

Abstract

This invention provides a power-free wireless keyboard, comprising a matching unit for impedance matching with a portable electronic device to obtain power; a current processing unit connected with the matching unit to rectify the power obtained; a wireless communication interface connected with the matching unit and the current processing unit for performing handshake communication with the portable electronic device after obtaining the power; and a keyboard processing unit connected with the current processing unit and the wireless communication interface capable of performing input operation after obtaining the power and completing handshake communication with the portable electronic device. Thus, the keyboard can use the power from the portable electronic device without requiring additional power, thereby substantially reducing the volume of the keyboard and allowing miniaturization and compactness during production as well as high portability and eco-friendly advantages.

Description

Wireless keyboard without power

The invention relates to a wireless keyboard innovation without power supply, in particular to a keyboard for using a power source of a portable electronic device, and the keyboard body does not need to be provided with a power source, so that the volume of the keyboard can be significantly reduced, and when the system is manufactured, It is light, compact, easy to fold and carry, and has the effect of environmentally friendly regeneration.

In recent years, the external keyboard has been developed from a wired mode to a wireless type in response to the demand for portable electronic devices (such as smart phones or tablets).

However, most of the wireless keyboards that are commonly used in the market are connected to portable electronic devices by Bluetooth communication protocol, and the wireless keyboard must be equipped with a battery to provide power for use. The power can be obtained from two types of batteries. One of them is a removable battery, and the other is a fixed battery; according to the above two types of keyboard structures, it is generally necessary to reserve a space for the battery on the keyboard, resulting in a keyboard having a large volume and a lack of a portable belt; The battery has a set of years of use. Once the battery is exhausted, it is necessary to replace the battery (removable battery), or to discard the entire keyboard (fixed battery), which is completely out of use for environmental protection.

The main purpose of the present invention is to avoid the persistence of the above-mentioned formula, so that the keyboard can use the power of the portable electronic device, and the keyboard body does not need to provide its own power supply, so that the volume of the keyboard can be significantly reduced, and in production, It can be light and compact, easy to fold and carry and has the effect of environmentally friendly regeneration.

In order to achieve the above object, the present invention is a wireless keyboard without wires, which comprises a matching unit for impedance matching with a portable electronic device to obtain a power source; a current processing unit connected to the matching unit can rectify the obtained power supply; a wireless communication interface connecting the matching unit and the current processing unit can communicate with the portable electronic device after obtaining the power; and a connection current The keyboard processing unit of the processing unit and the wireless communication interface can perform an input operation after obtaining power and communicating with the portable electronic device.

1‧‧‧ keyboard

11‧‧‧Matching unit

12‧‧‧current processing unit

121‧‧‧Rectifier

122‧‧‧Regulator

13‧‧‧Wireless communication interface

14‧‧‧Keyboard Processing Unit

141‧‧‧ input word key

15‧‧‧ Carrier

151‧‧‧Placement area

2‧‧‧Portable electronic equipment

21‧‧‧Wireless communication interface

The first figure is a block diagram of the present invention.

The second figure is a schematic diagram of an embodiment of the application of the present invention.

The third figure is a schematic diagram of the state of use of the present invention.

Please refer to the "first, second and third figures" for a block diagram of the present invention, a schematic diagram of an embodiment of the invention, and a schematic diagram of the state of use of the present invention. As shown in the figure: a wireless keyboard with no power supply, the keyboard 1 is composed of a matching unit 11, a current processing unit 12, a wireless communication interface 13 and a keyboard processing unit 14.

The matching unit 11 can be impedance matched with the portable electronic device 2 (for example, various types of handheld devices such as smart phones or tablets) to obtain power.

The current processing unit 12 is connected to the matching unit 11 to rectify the obtained power supply. The current processing unit 12 includes a rectifier 121 and a voltage regulator 122 connected to the rectifier 121.

The wireless communication interface 13 is connected to the matching unit 11 and the voltage regulator 122 of the current processing unit 12, and can communicate with the portable electronic device 2 after obtaining power, and the wireless communication interface 13 can be near field communication ( Near Field Communication (NFC) or Radio Frequency Identification (RFID).

The keyboard processing unit 14 is connected to the voltage regulator 122 of the current processing unit 12 and the wireless communication interface 13. After the power is obtained and communicated with the portable electronic device 2, the input operation is performed, and the keyboard processing unit 1 is executed. The 4 series is further connected to a plurality of input word keys 141 that can perform input operations. If so, combine into a new wireless keyboard without power.

When the present invention is implemented, each input word key 141 can be placed on one side of the carrier 15, and the matching unit 11, the current processing unit 12, the wireless communication interface 13 and the keyboard processing unit 14 are disposed in the carrier 15, and the whole A keyboard 1 is formed, and the carrier 15 can be designed in various types such as a flat folding or unfolding type, and at least one placement area 151 is provided at a suitable place of the carrier 15.

When the present invention is used, the portable electronic device 2 can be placed on the placement area 151 of the keyboard 1 to perform impedance matching between the wireless communication interface 21 (NFC/RFID) in the portable electronic device 2 and the matching unit 11. The power supply for charging the keyboard 1 is obtained, and the AC charging signal is rectified by the rectifier 121 of the current processing unit 12 and the voltage regulator 122, and then provided to the wireless communication interface 13 and the keyboard processing unit 14, when the keyboard 1 obtains power and After the scanning operation is performed, the obtained keyboard code can be transmitted to the wireless communication interface 21 of the portable electronic device 2 by the wireless communication interface 13, so that the keyboard 1 and the portable electronic device 2 can communicate with each other, and the keyboard processing unit is used. 14 cooperates with each input word key 41 to perform an input operation, so that the keyboard 1 can use the power of the portable electronic device 2 without having to supply a power source.

In summary, the wireless keyboard with no power supply of the present invention can effectively improve the missing formula, so that the keyboard can use the power of the portable electronic device, and the keyboard body does not need to provide its own power supply, so that the volume of the keyboard can be significantly reduced. When it is made, it can achieve the functions of light and small, convenient folding and carrying and environmentally-friendly regeneration. It obviously makes the invention more progressive, practical and meets the needs of the owner. It has already possessed the basic requirements of patent application and submitted an invention application according to law.

However, the above is only a preferred embodiment of the present invention, and should not be limited to the technical scope of the present invention, and any simple equivalent change and correction made with reference to the scope of the present invention and the contents of the specification should be It is still within the scope of the patents obtained by the present invention in the future, and is hereby incorporated.

1‧‧‧ keyboard

11‧‧‧Matching unit

12‧‧‧current processing unit

121‧‧‧Rectifier

122‧‧‧Regulator

13‧‧‧Wireless communication interface

14‧‧‧Keyboard Processing Unit

141‧‧‧ input word key

2‧‧‧Portable electronic equipment

Claims (5)

A powerless wireless keyboard includes: a matching unit for impedance matching with a portable electronic device to obtain a power source; a current processing unit connected to the matching unit to rectify the obtained power source; The communication interface is a connection matching unit and a current processing unit, and can communicate with the portable electronic device after obtaining the power; and a keyboard processing unit is connected to the current processing unit and the wireless communication interface, and can obtain power and After the portable electronic device performs the handshake communication, the input action is performed. The wireless keyboard of the power supply according to claim 1, wherein the current processing unit comprises a rectifier and a voltage regulator connected to the rectifier. According to the non-power wireless keyboard described in claim 1, wherein the wireless communication interface is Near Field Communication (NFC). The wireless keyboard with no power supply according to the first aspect of the patent application, wherein the wireless communication interface is Radio Frequency Identification (RFID). The powerless wireless keyboard of claim 1, wherein the keyboard processing unit is further connected to a plurality of input word keys.