Electronic device

Patent metadata

Field	Value
Publication number	US-10951244-B2
Application number	US-201916729207-A
Country	US
Kind code	B2
Filing date	Dec 27, 2019
Priority date	Dec 29, 2018
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

Abstract

An electronic device is provided. The electronic device includes a housing, an audio output device, and a radio frequency (RF) device. The housing includes at least a conductive first portion made of a conductive material, and the conductive first portion has an opening. The audio output device is disposed in the housing and corresponding to the opening to output an audio, a space exists between the audio output device and the housing, and the audio passes through the opening to be perceived by a listener outside the housing. The radio frequency (RF) device is disposed in the space for radiating a wireless signal under a coupling effect of the opening of the conductive first portion of the housing.

First claim

What is claimed is:

1. An electronic device, including:
a housing, the housing including at least a conductive first portion made of a conductive material, and the conductive first portion having an opening;
an audio output device disposed in the housing and corresponding to the opening to output an audio, wherein a space exists between the audio output device and the housing, and the audio passes through the opening to be perceived by a listener outside the housing; and
a radio frequency (RF) device disposed in the space for radiating a wireless signal within a frequency band correlated to a geometric parameter of the opening such that the RF device is inductive, the RF device forming a coupling effect with the opening of the conductive first portion of the housing at a resonance frequency of the frequency band.

2. The electronic device according to claim 1 , further comprising:
a wireless signal processing device connected to the RF device for transmitting a first wireless signal with the RF device,
wherein the first wireless signal is within a first frequency band, and the RF device and the opening on the conductive first portion of the housing support a resonance frequency of the first frequency band through the coupling effect.

3. The electronic device according to claim 2 , wherein:
the wireless signal processing device is further configured to transmit a second wireless signal with the RF device;
the second wireless signal is within a second frequency band, different from the first frequency band; and
the RF device and the opening on the conductive first portion of the housing support a resonance frequency of the second frequency band through the coupling effect.

4. The electronic device according to claim 3 , further comprising:
an antenna control circuit connected to the wireless signal processing device and configured to control the wireless signal processing device and the RF device to transmit the first wireless signal or the second wireless signal.

5. The electronic device according to claim 2 , wherein the wireless signal processing device and the RF device are connected by a signal line, and the signal line is used to transmit the first wireless signal or the second wireless signal.

6. The electronic device according to claim 2 , wherein a perimeter of the opening of the first portion is one-half of a wavelength of the first frequency band, such that resonance frequencies supported by the coupling effect between the RF device and the opening on the first portion include the first frequency band and the second frequency band, wherein the first frequency band is smaller than the second frequency band.

7. The electronic device according to claim 1 , wherein:
two sides of the space have closed structures for preventing audio outputted by the audio output device from being transmitted on the two sides of the space, and the closed structures and the opening form an audio guide for the audio output device, so that the audio outputted by the audio output device is transmitted along the audio guide.

8. The electronic device according to claim 1 , wherein the space forms a front sound cavity of the audio output device.

9. The electronic device according to claim 1 , wherein the RF device is supported on the audio output device through a connection structure, and a space gap is reserved between the RF device and a magnetic component of the audio output device.

10. The electronic device according to claim 9 , wherein the space gap between the RF device and the magnetic component of the audio output device is arranged to prevent interference between the magnetic component and the RF device.

11. The electronic device according to claim 1 , wherein the geometric parameter is a circumference of the opening being one-half of the wavelength corresponding to the frequency band.

12. A method for an electronic device, including:
providing a housing including at least a conductive first portion made of a conductive material, and the conductive first portion having an opening;
disposing an audio output device in the housing and corresponding to the opening to output an audio, wherein a space exists between the audio output device and the housing, and the audio passes through the opening to be perceived by a listener outside the housing; and
disposing a radio frequency (RF) device disposed in the space for radiating a wireless signal within a frequency band which is correlated to a geometric parameter of the opening such that the RF device being inductive, forming a coupling effect with the opening of the conductive first portion of the housing at a resonance frequency of the frequency band.

13. The method according to claim 12 , further comprising:
connecting a wireless signal processing device to the RF device for transmitting a first wireless signal with the RF device or a second wireless signal with the RF device,
wherein the first wireless signal is within a first frequency band, and the RF device and the opening on the conductive first portion of the housing support a resonance frequency of the first frequency band through the coupling effect; the second wireless signal is within a second frequency band, different from the first frequency band, the RF device and the opening on the conductive first portion of the housing support a resonance frequency of the second frequency band through the coupling effect.

14. The method according to claim 13 , further comprising:
connecting an antenna control circuit to the wireless signal processing device and controlling the wireless signal processing device and the RF device to transmit the first wireless signal or the second wireless signal.

15. The method according to claim 13 , further comprising:
connecting the wireless signal processing device and the RF device by a signal line to be used to transmit the first wireless signal or the second wireless signal.

16. The method according to claim 15 , further comprising:
providing closed structures on two sides of the space for preventing audio outputted by the audio output device from being transmitted on the two sides of the space, and the closed structures and the opening form an audio guide for the audio output device, so that the audio outputted by the audio output device is transmitted along the audio guide.

17. The method according to claim 12 , further comprising:
supporting the RF device on the audio output device through a connection structure, and maintaining a space gap between the RF device and a magnetic component of the audio output device, wherein the space gap between the RF device and the magnetic component of the audio output device is arranged to prevent interference between the magnetic component and the RF device.

18. A user terminal, comprising:
a first body containing a display; and
a second body connected to the first body through a connecting member, such that the first body and the second body are able to be relatively rotated through the connecting member,
wherein the second body further includes:
a housing, the housing including at least a conductive first portion made of a conductive material, and the conductive first portion having an opening;
an audio output device disposed in the housing and corresponding to the opening to output an audio, wherein a space exists between the audio output device and the housing, and the audio passes through the opening to be perceived by a listener outside the housing; and
a radio frequency (RF) device disposed in the space for radiating a wireless signal within a frequency band co

Assignees

• Lenovo Beijing Co Ltd

Inventors

• Bao Weimin
• Wang Wenlei
• Su Chang

Classifications

• H04M1/724092

  Interfacing with an external cover providing additional functionalities · CPC title

• H04B1/3888

  Arrangements for carrying or protecting transceivers · CPC title

• H01Q5/10

  Resonant antennas · CPC title

• H04M1/035 Primary

  Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities · CPC title

• H04B15/00

  Suppression or limitation of noise or interference (by means associated with receiver H04B1/10) · CPC title