Patent Application
20230359250
This application claims the priority benefit of Taiwan application serial no. 111117361, filed on May 9, 2022. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
The disclosure relates to an electronic device, and in particular to an electronic device having an antenna.
If a wireless electronic device is operated close to the human body, the transmit power of the antenna when used close to the human body must comply with regulations to avoid affecting human health. There are two ways to bring the transmit power of the antenna into compliance with regulations. One is to directly reduce the transmit power of the antenna to below regulatory requirements in order to comply with regulations, but this will affect the quality of reception when not close to human body.
The other is to set up a sensing device on the electronic device to sense whether the human body is close to the sensing device. When the user is detected to be close, the transmit power of the antenna is reduced to comply with regulations. There are two main ways to do this. One way is to set up a dedicated sensor pad on the product near the antenna. However, the dedicated sensor pad takes up a certain amount of space. The other method is to integrate the sensor pad with the antenna, and the antenna itself has the function of sensor pad. This method can reduce the size, but need to consider the characteristics of the antenna, so the antenna design is more complex.
The disclosure provides an electronic device which may sense the approach of a human body and modulate transmit power of an antenna without using additional sensor pads and without modifying a structure of the antenna.
An electronic device of the disclosure includes an antenna, an object, a metal fixing member, and a sensor chip. The object is disposed beside the antenna. The metal fixing member is disposed beside the antenna, and the object is fixed by the metal fixing member. The sensor chip for detecting is electrically connected to the metal fixing member.
In an embodiment of the disclosure, the metal fixing member includes a screw, a nut, a rivet, a clamp or a fastener.
In an embodiment of the disclosure, the object includes an antenna bracket, the antenna is disposed on the antenna bracket, and the antenna bracket is fixed by the metal fixing member.
In an embodiment of the disclosure, the electronic device further includes a casing. The antenna, the object, and the metal fixing member are located in the casing, and the metal fixing member fixes the object to the casing.
In an embodiment of the disclosure, the electronic device further includes another metal fixing members, wherein the metal fixing member and the another metal fixing members are located on at least two opposite sides of the antenna.
In an embodiment of the disclosure, a diameter of the metal fixing member is between 5 mm and 8 mm.
In an embodiment of the disclosure, the electronic device further includes a radio frequency transceiver and a controller. The radio frequency transceiver is electrically connected to the antenna. The controller is electrically connected to the radio frequency transceiver and the sensor chip. In response to the sensor chip detects that the metal fixing member is approached by a human body, the sensor chip sends a signal to the controller, then the controller reduces a transmit power of the radio frequency transceiver to the antenna.
In an embodiment of the disclosure, the electronic device is a tablet computer, a cell phone or a laptop, and the electronic device includes a screen and a bezel region surrounding the screen, and the antenna and the metal fixing member are located in the bezel region.
In an embodiment of the disclosure, a distance between the metal fixing member and the antenna is between 3 mm and 10 mm.
In an embodiment of the disclosure, the electronic device further includes another metal fixing members, wherein the metal fixing member and the another metal fixing members are of the same or different types.
An electronic device includes an antenna, an object and a metal fixing member for sensing. The object is disposed beside the antenna. The metal fixing member for sensing is disposed beside the antenna, wherein the object is fixed by the metal fixing member.
In an embodiment of the disclosure, the metal fixing member comprises a screw, a nut, a rivet, a clamp or a fastener.
In an embodiment of the disclosure, the object comprises an antenna bracket, the antenna is disposed on the antenna bracket, and the antenna bracket is fixed by the metal fixing member.
In an embodiment of the disclosure, the electronic device further includes a casing, wherein the antenna, the object, and the metal fixing member are located in the casing, and the metal fixing member fixes the object to the casing.
In an embodiment of the disclosure, the electronic device further includes another metal fixing members, wherein the metal fixing member and the another metal fixing members are located on two opposite sides of the antenna.
In an embodiment of the disclosure, a diameter of the metal fixing member is between 5 mm and 8 mm.
In an embodiment of the disclosure, the electronic device further includes a sensor chip electrically connected to the metal fixing member; a radio frequency transceiver electrically connected to the antenna; and a controller electrically connected to the radio frequency transceiver and the sensor chip, wherein in response to the metal fixing member senses a human body is approached, the sensor chip sends a signal to the controller, then the controller reduces a transmit power of the radio frequency transceiver to the antenna.
In an embodiment of the disclosure, the electronic device is a tablet computer, a cell phone or a laptop, and the electronic device comprises a screen and a bezel region surrounding the screen, and the antenna and the metal fixing member are located in the bezel region.
In an embodiment of the disclosure, a distance between the metal fixing member and the antenna is between 3 mm and 10 mm.
In an embodiment of the disclosure, the electronic device further includes another metal fixing members, wherein the metal fixing member and the another metal fixing members are of the same or different types.
Based on the above, the electronic device of the disclosure uses the metal fixing member originally used to fix the object as the sensor pad of the antenna. The metal fixing member is electrically connected to the sensor chip, so that the sensor chip may detect whether the human body is approaching by the metal fixing member. Therefore, the electronic device of the disclosure does not need to use a dedicated sensor pad to sense whether the human body is approaching, which may save cost and free up space inside the electronic device for other elements to be placed, and does not need to modify the structure of the antenna, which is quite simple convenient.
To make the aforementioned more comprehensible, several accompanied with drawings are described in detail as follows.
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure.
According to this embodiment, the electronic device 100 includes a screen 170, a bezel region 175 surrounding the screen 170, an antenna 110 located in the bezel region 175, and a metal fixing member 130. The antenna 110 and the metal fixing member 130 are covered by a casing of the bezel region 170, and are indicated by dashed lines. According to this embodiment, the antenna 110 and the metal fixing member 130 are disposed in the bezel region 175 to avoid interference by the metal in the screen 170.
The electronic device 100 according to this embodiment may use a human body sensing mechanism to detect whether a user is approaching, and when the user is approaching, the electronic device 100 reduces transmit power of the antenna, so that the transmit power of the antenna may comply with regulations. In addition, the electronic device 100 according to this embodiment sense the approach of the user without using additional sensor pads and without modifying the design of the antenna to achieve the above-mentioned effects, as explained below.
As shown in
The electronic device 100 according to this embodiment further includes a casing 150 (
Of course, the type of the object 120 is not limited thereto. According to other embodiments, the object 120 may also be other existing structures close to the antenna 110, and the object 120 may also be an electronic element. The metal fixing member 130 is used to fix the existing object 120 and is insulated from the object 120.
In addition, according to this embodiment, the metal fixing member 130 is a screw for example, and the metal fixing member 130 may be locked on a screw holder (not shown) fixed on the casing 150 to press the object 120 against the metal fixing member 130 between the casing 150. Of course, the types of the metal fixing member 130 are not limited thereto. According to other embodiments, the metal fixing member 130 may also include a nut, a rivet, a clamp or a fastener.
It should be noted that, according to this embodiment, a number of the metal fixing members 130 is multiple, e.g., two, and are located on opposite sides of the antenna 110. More specifically, two metal fixing members 130 are located beside two short sides of the antenna 110.
According to other embodiments, the two metal fixing members 130 may also be located beside two long sides of the antenna 110. Alternatively, the number of the metal fixing members 130 may be more than two, and are disposed along an edge of the antenna 110.
In addition, according to this embodiment, the types of the two metal fixing members 130 are the same, and both are screws. But according to other embodiments, the types of the metal fixing members 130 may also be different. For example, the metal fixing members 130 may be at least two of the screw, nut, rivet, clamp and fastener. As long as the metal fixing member 130 is close to the antenna 110 and is electrically connected to the sensor chip 140, it may be used as a sensor pad or a sensing radiator for sensing whether the human body is approaching.
It is known that the sensor pad which is specially used to sense the approach of the human body needs to have a certain size. For example, a length of a known sensor pad is, for example, 11 mm and a width is, for example, 11 mm. A distance that can be sensed by such a sensor pad is, for example, 25 mm.
As shown in
In addition, according to this embodiment, a distance X (
According to this embodiment, the electronic device 100 uses the metal fixing member 130 close to the antenna 110 as a sensor pad or a sensing radiator for sensing whether the human body is approaching. The metal fixing member 130 is electrically connected to the sensor chip 140 to transmit a sensed signal to the sensor chip 140 (
In other words, the metal fixing member 130 according to this embodiment has two functions, the first is to fix the object 120, and the second is to be used as a sensor pad or a sensing radiator to sense the approach of the human body.
Since the electronic device 100 uses the metal fixing member 130 originally used to fix the object 120 as the sensor pad or sensing radiator to sense the sensing radiator of the human body, the electronic device 100 does not need additional sensor pad, which may effectively save cost and free up space for placing other elements where the sensor pad was originally to be disposed.
In addition, as shown in
Thus, when the human body approaches the metal fixing member 130 located beside the antenna 110 (
To sum up, the electronic device of the disclosure uses the metal fixing member originally used to fix the object as the sensor pad of the antenna. The metal fixing member is electrically connected to the sensor chip, so that the sensor chip may detect whether the human body is approaching by the metal fixing member. Therefore, the electronic device of the disclosure does not need to use a dedicated sensor pad to sense whether the human body is approaching, which may save cost and free up space inside the electronic device for other elements to be placed, and does not need to modify the structure of the antenna, which is quite simple convenient.
It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed without departing from the scope or spirit of the disclosure. In view of the foregoing, it is intended that the disclosure covers modifications and variations provided that they fall within the scope of the following claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 111117361 | May 2022 | TW | national |
